§420.127 40 cfr ch. i (7–1–98 edition) -...

446

40 CFR Ch. I (7–1–98 Edition)§ 420.127

§ 420.127 Effluent limitations rep-resenting the degree of effluent re-duction attainable by the applica-tion of the best conventional tech-nology (BCT).

Except as provided in 40 CFR 125.30through 125.32, any existing pointsource subject to this subpart mustachieve the following effluent limita-tions representing the degree of efflu-ent reduction attainable by the appli-cation of the best conventional tech-nology.

(a) Galvanizing, terne coating, andother coatings.

(1) Strip, sheet, and miscellaneousproducts.

SUBPART L

Pollutant or pollutant property

BCT effluent limitations

Maximumfor any 1

day

Average ofdaily val-ues for 30consecu-tive days

Kg/kkg (pounds per1,000 lb) of product

TSS ................................................ 0.175 0.0751O&G ............................................... 0.0751 0.0250pH ................................................... (1 ) (1)

1 Within the range of 6.0 to 9.0.

(b) Galvanizing and other coatings.(1) Wire products and fasteners.

SUBPART L



Maximumfor any 1

day

Average ofdaily valuesfor 30 con-

secutivedays

Kg/kkg (pounds per 1,000lb) of product

TSS ............................................ 0.701 0.300O&G ........................................... 0.300 0.100pH ............................................... (1 ) (1)


(c) Fume scrubbers.

SUBPART L



Maximumfor any 1

day

Average ofdaily val-ues for 30consecu-tive days

Kilograms per day

TSS ................................................ 38.1 16.3O&G ............................................... 16.3 5.45pH ................................................... (1 ) (1)


The above limitations shall be applica-ble to each fume scrubber associatedwith any of the coating operationsspecified above.

PART 421—NONFERROUS METALSMANUFACTURING POINTSOURCE CATEGORY

GENERAL PROVISIONS

Sec.421.1 Applicability.421.2 [Reserved]421.3 Monitoring and reporting require-

ments.421.4 Compliance date for pretreatment

standards for existing sources (PSES).421.5 Removal allowances for pretreatment

standards.

Subpart A—Bauxite Refining Subcategory

421.10 Applicability; description of thebauxite refining subcategory.

421.11 Specialized definitions.421.12 Effluent limitations guidelines rep-

resenting the degree of effluent reductionattainable by the application of the bestpracticable control technology currentlyavailable.

421.13 Effluent limitations guidelines rep-resenting the degree of effluent reductionattainable by the application of the bestavailable technology economicallyachievable.

421.14 [Reserved]421.15 Standards of performance for new

sources.421.16 Pretreatment standards for new

sources.

Subpart B—Primary Aluminum SmeltingSubcategory

421.20 Applicability: description of the pri-mary aluminum smelting subcategory.


resenting the degree of effluent reductionattainable by the application of the best

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447

Environmental Protection Agency Pt. 421

practicable control technology currentlyavailable.


421.24 Standards of performance for newsources.

421.25 [Reserved]421.26 Pretreatment standards for new

sources.421.27 [Reserved]

Subpart C—Secondary Aluminum SmeltingSubcategory

421.30 Applicability: Description of the sec-ondary aluminum smelting subcategory.





421.35 Pretreatment standards for existingsources.

421.36 Pretreatment standards for newsources.

421.37 [Reserved]

Subpart D—Primary Copper SmeltingSubcategory

421.40 Applicability: Description of the pri-mary copper smelting subcategory.







Subpart E—Primary Electrolytic CopperRefining Subcategory

421.50 Applicability: Description of the pri-mary electrolytic copper refining sub-category.







Subpart F—Secondary CopperSubcategory

421.60 Applicability: Description of the sec-ondary copper subcategory.







421.67 [Reserved]

Subpart G—Primary Lead Subcategory

421.70 Applicability: Description of the pri-mary lead subcategory.







421.77 [Reserved]


448

40 CFR Ch. I (7–1–98 Edition)Pt. 421

Subpart H—Primary Zinc Subcategory

421.80 Applicability: Description of the pri-mary zinc subcategory.







421.87 [Reserved]

Subpart I—Metallurgical Acid PlantsSubcategory

421.90 Applicability: Description of the met-allurgical acid plants subcategory.







421.97 [Reserved]

Subpart J—Primary Tungsten Subcategory

421.100 Applicability: Description of the pri-mary tungsten subcategory.







421.107 [Reserved]

Subpart K—Primary Columbium-TantalumSubcategory

421.110 Applicability: Description of the pri-mary columbium-tantalum subcategory.







421.117 [Reserved]

Subpart L—Secondary Silver Subcategory

421.120 Applicability: Description of the sec-ondary silver subcategory.







421.127 [Reserved]

Subpart M—Secondary Lead Subcategory

421.130 Applicability: Description of the sec-ondary lead subcategory.






449




421.137 [Reserved]

Subpart N—Primary Antimony Subcategory

421.140 Applicability: Description of the pri-mary antimony subcategory.







Subpart O—Primary Beryllium Subcategory

421.150 Applicability: Description of the pri-mary beryllium subcategory.







Subpart P—Primary and SecondaryGermanium and Gallium Subcategory

421.180 Applicability: Description of the pri-mary and secondary germanium andgallium subcategory.







421.187 [Reserved]

Subpart Q—Secondary IndiumSubcategory

421.190 Applicability: Description of the sec-ondary indium subcategory.

421.191 Specialized definitions.421.192—421.193 [Reserved]421.194 Standards of performance for new

sources.421.195 Pretreatment standards for existing



Subpart R—Secondary MercurySubcategory

421.200 Applicability: Description of the sec-ondary mercury subcategory.


sources.421.205 [Reserved]421.206 Pretreatment standards for new


Subpart S—Primary Molybdenum andRhenium Subcategory

421.210 Applicability: Description of the pri-mary molybdenum and rhenium sub-category.







Subpart T—Secondary Molybdenum andVanadium Subcategory

421.220 Applicability: Description of the sec-ondary molybdenum and vanadium sub-category.


450

40 CFR Ch. I (7–1–98 Edition)Pt. 421







Subpart U—Primary Nickel and CobaltSubcategory

421.230 Applicability: Description of the pri-mary nickel and cobalt subcategory.

421.231 Specialized definitions.421.232 Effuent limitations guidelines rep-


421.233 Effuent limitations guidelines rep-resenting the degree of effluent reductionattainable by the application of the bestavailable technology economicallyachievable.




Subpart V—Secondary Nickel Subcategory

421.240 Applicability: Description of the sec-ondary nickel subcategory.





Subpart W—Primary Precious Metals andMercury Subcategory

421.250 Applicability: Description of the pri-mary precious metals and mercury sub-category.







Subpart X—Secondary Precious MetalsSubcategory

421.260 Applicability: Description of the sec-ondary precious metals subcategory.







421.267 [Reserved]

Subpart Y—Primary Rare Earth MetalsSubcategory

421.270 Applicability: Description of the pri-mary rare earth metals subcategory.

421.271 Specialized definitions.421.272 [Reserved]421.273 [Reserved]421.274 Standards of performance for new




Subpart Z—Secondary TantalumSubcategory

421.280 Applicability: Description of the sec-ondary tantalum subcategory.



421.283 Effluent limitations guidelines rep-resenting the degree of effluent reductionattainable by the application of the best


451


available technology economicallyachievable.




Subpart AA—Secondary Tin Subcategory

421.290 Applicability: Description of the sec-ondary tin subcategory







421.297 [Reserved]

Subpart AB—Primary and SecondaryTitanium Subcategory

421.300 Applicability: Description of the pri-mary and secondary titanium sub-category.







421.307 [Reserved]

Subpart AC—Secondary Tungsten andCobalt Subcategory

421.310 Applicability: Description of the sec-ondary tungsten and cobalt subcategory.


resenting the degree of effluent reductionattainable by the application of the best

practicable control technology currentlyavailable.





421.317 [Reserved]

Subpart AD—Secondary UraniumSubcategory

421.320 Applicability: Description of the sec-ondary uranium subcategory.







Subpart AE—Primary Zirconium andHafnium Subcategory

421.330 Applicability: Description of the pri-mary zirconium and hafnium sub-category.







AUTHORITY: Secs. 301, 304 (b), (c), (e), and(g), 306 (b) and (c), 307 (b) and (c), 308 and 501of the Clean Water Act (the Federal WaterPollution Control Act Amendments of 1972,as amended by the Clean Water Act of 1977)and the Water Quality Act of 1987 (the


452

40 CFR Ch. I (7–1–98 Edition)§ 421.1

‘‘Act’’); 33 U.S.C. 1311, 1314 (b), (c), (e), and(g), 1316 (b) and (c), 1317 (b) and (c), 1318 and1361; 86 Stat. 816, Pub. L. 92–500; 91 Stat. 1567,Pub. L. 95–217; 101 Stat. 7, Pub. L. 100–4.

SOURCE: 49 FR 8790, Mar. 8, 1984, unless oth-erwise noted.

GENERAL PROVISIONS

§ 421.1 Applicability.

This part applies to facilities produc-ing primary metals from ore con-centrates and recovering secondarymetals from recycle wastes which dis-charge or may discharge pollutants towaters of the United States or whichintroduce or may introduce pollutantsinto a publicly owned treatment works.The applicability of this part toalloying or casting of nonferrous met-als is limited to alloying or casting ofhot metal directly from the nonferrousmetals manufacturing process withoutcooling. Remelting followed byalloying or cooling is included in thealuminum forming, nonferrous metalsforming, or metal molding and castingpoint source categories.

§ 421.2 [Reserved]

§ 421.3 Monitoring and reporting re-quirements.

The following special monitoring re-quirements apply to all facilities con-trolled by this regulation:

(a) The monthly average regulatoryvalues shall be the basis for the month-ly average discharge in direct dis-charge permits and for pretreatmentstandards. Compliance with the month-ly discharge limit is required regard-less of the number of samples analyzedand averaged.

(b) Periodic analysis for cyanide arenot required for a facility in the pri-mary beryllium subcategory (subpart Oof this part) when both of the followingconditions are met:

(1) The first wastewater sampletaken in each calandar year has beenanalyzed and found to contain lessthan 0.07 mg/1 cyanide.

(2) The owner or operator of the pri-mary beryllium manufacturing facilitycertifies in writing to the POTW au-thority or permit issuing authoritythat cyanide is neither generated nor

used in the beryllium manufacturingprocess employed at that facility.

[49 FR 8790, Mar. 8, 1984, as amended at 55 FR31697, Aug. 3, 1990]

§ 421.4 Compliance date forpretreatment standards for existingsources (PSES).

The PSES compliance deadline insubparts A through M is March 8, 1987.The PSES compliance deadline forplants in subparts N through AE isSeptember 20, 1988.

[50 FR 52776, Dec. 26, 1985]

§ 421.5 Removal allowances forpretreatment standards.

Removal allowances pursuant to 40CFR 403.7(a) may be granted for thetoxic metals limited in 40 CFR part 421when used as indicator pollutants.

Subpart A—Bauxite RefiningSubcategory

§ 421.10 Applicability; description ofthe bauxite refining subcategory.

The provisions of this subpart are ap-plicable to discharges resulting fromthe refining of bauxite to alumina bythe Bayer process or by the combina-tion process.

[39 FR 12825, Apr. 8, 1974]

§ 421.11 Specialized definitions.For the purpose of this subpart:(a) Except as provided below, the gen-

eral definitions, abbreviations andmethods of analysis set forth in part401 of this chapter shall apply to thissubpart.

(b) The term bauxite shall mean orecontaining alumina monohydrate oralumina trihydrate which serves as theprincipal raw material for the produc-tion of alumina by the Bayer process orby the combination process.

(c) The term product shall mean alu-mina.

(d) For all impoundments the termwithin the impoundment for purposes ofcalculating the volume of processwastewater which may be discharged,shall mean the surface area within theimpoundment at the maximum capac-ity plus the area of the inside and out-side slopes of the impoundment dam


453

Environmental Protection Agency § 421.13

and the surface area between the out-side edge of the impoundment dam andseepage ditches upon which rain fallsand is returned to the impoundment.For the purpose of such calculations,the surface area allowance for externalappurtenances to the impoundmentshall not be more than 30 percent ofthe water surface area within the im-poundment dam at maximum capacity.

(e) The term pond water surface areafor the purpose of calculating the vol-ume of waste water shall mean thearea within the impoundment for rain-fall and the actual water surface areafor evaporation.

[39 FR 12825, Apr. 8, 1974, as amended at 40FR 48348, Oct. 15, 1975]

§ 421.12 Effluent limitations guidelinesrepresenting the degree of effluentreduction attainable by the applica-tion of the best practicable controltechnology currently available.

Except as provided in 40 CFR 125.30through 125.32, any existing pointsource subject to this subpart, shallachieve the following effluent limita-tions representing the degree of efflu-ent reduction attainable by the appli-cation of the best practicable controltechnology currently available:

(a) Subject to the provisions of para-graph (b) of this section, the followinglimitations establish the quantity orquality of pollutants or pollutant prop-erties which may be discharged by apoint source subject to the provisionsof this subpart after application of thebest practicable control technologycurrently available: There shall be nodischarge of process waste water pol-lutants to navigable waters.

(b) During any calendar month theremay be discharged from the overflow ofa process waste water impoundment ei-ther a volume of process waste waterequal to the difference between theprecipitation for that month that fallswithin the impoundment and the evap-oration within the impoundment forthat month, or, if greater, a volume ofprocess waste water equal to the dif-ference between the mean precipitationfor that month that falls within theimpoundment and the mean evapo-ration for that month as established bythe National Climatic Center, NationalOceanic and Atmospheric Administra-

tion, for the area in which such im-poundment is located (or as otherwisedetermined if no monthly data havebeen established by the National Cli-matic Center).

[39 FR 12825, Apr. 8, 1974, as amended at 50FR 38342, Sept. 20, 1985]

§ 421.13 Effluent limitations guidelinesrepresenting the degree of effluentreduction attainable by the applica-tion of the best available tech-nology economically achievable.

Except as provided in 40 CFR 125.30through 125.32, any existing pointsource subject to this subpart shallachieve the following effluent limita-tions representing the degree of efflu-ent reduction attainable by the appli-cation of the best available technologyeconomically achievable:

(a) Subject to the provisions of para-graph (b) of this section, the followinglimitations establish the quantity orquality of pollutants or pollutant prop-erties which may be discharged by apoint source subject to the provisionsof this subpart after application of thebest available technology economicallyachievable: There shall be no dischargeof process waste water pollutants tonavigable waters.

(b) During any calendar month theremay be discharged from the overflow ofa process waste water impoundment ei-ther a volume of process waste waterequal to the difference between theprecipitation for that month that fallswithin the impoundment and the evap-oration within the impoundment forthat month, or, if greater, a volume ofprocess waste water equal to the dif-ference between the mean precipitationfor that month that falls within theimpoundment and the mean evapo-ration for that month as established bythe National Climatic Center, NationalOceanic and Atmospheric Administra-tion, for the area in which such im-poundment is located (or as otherwisedetermined if no monthly data havebeen established by the National Cli-matic Center).

[39 FR 12825, Apr. 8, 1974, as amended at 50FR 38342, Sept. 20, 1985]


454

40 CFR Ch. I (7–1–98 Edition)§ 421.14

§ 421.14 [Reserved]

§ 421.15 Standards of performance fornew sources.

(a) Subject to the provisions of para-graph (b) of this section, the followingstandards of performance establish thequantity or quality of pollutants orpollutant properties which may be dis-charged by a new source subject to theprovisions of this subpart: There shallbe no discharge of process waste waterpollutants to navigable waters.

(b) During any calendar month theremay be discharged from the overflow ofa process waste water impoundment ei-ther a volume of process waste waterequal to the difference between theprecipitation for that month that fallswithin the impoundment and the evap-oration within the impoundment forthat month, or, if greater, a volume ofprocess waste water equal to the dif-ference between the mean precipitationfor that month that falls within theimpoundment and the mean evapo-ration for that month as established bythe National Climatic Center, NationalOceanic and Atmospheric Administra-tion, for the area in which such im-poundment is located (or as otherwisedetermined if no monthly data havebeen established by the National Cli-matic Center).

[39 FR 12825, Apr. 8, 1974]

§ 421.16 Pretreatment standards fornew sources.

Any new sources subject to this sub-part which introduces pollutants into apublicly owned treatment works mustcomply with 40 CFR part 403.

[50 FR 38342, Sept. 20, 1985]

Subpart B—Primary AluminumSmelting Subcategory

§ 421.20 Applicability: description ofthe primary aluminum smeltingsubcategory.

The provisions of this subpart are ap-plicable to discharges resulting fromthe production of aluminum from alu-mina in the Hall-Heroult process.

§ 421.21 Specialized definitions.

For the purpose of this subpart:

(a) Except as provided below, the gen-eral definitions, abbreviations andmethods of analysis set forth in part401 of this chapter, shall apply to thissubpart.

(b) The term product shall mean hotaluminum metal.

(c) If a permittee chooses to analyzefor benzo(a)pyrene using any EPA-ap-proved method, any ‘‘non-detected’’measurements shall be considered ze-roes for the purpose of determiningcompliance with this regulation.

[49 FR 8792, Mar. 8, 1984, as amended at 52 FR25556, July 7, 1987]


Except as provided in 40 CFR 125.30through 125.32, any existing pointsource subject to this subpart shallachieve the following effluent limita-tions representing the degree of efflu-ent reduction attainable by the appli-cation of the best practicable tech-nology currently available (BPT):

Pollutant or pollutant propertyMaximumfor any 1

day

Maximumfor monthly

average

Metric units—kg/kkg ofproduct

English units—lbs/thousand lbs of product

Fluoride ...................................... 2.0 1.0Total Suspended solids ............. 3.0 1.5pH ............................................... (1) (1)

1 Within the range of 6 to 9 at all times.

[49 FR 8792, Mar. 8, 1984; 49 FR 29794, July 24,1984]



(a) Subpart B—Anode and CathodePaste Plant Wet Air Pollution Control


455


BAT EFFLUENT LIMITATIONS


day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of paste pro-duced

Benzo(a)pyrene .......................... 0.005 0.002Antimony .................................... .263 .117Nickel ......................................... .075 .050Aluminum ................................... .831 .369Fluoride ...................................... 8.092 3.591

(b) Supart (B)—Anode Contact Cool-ing and Briquette Quenching.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of anodes cast

Benzo(a)pyrene .......................... 0.007 0.003Antimony .................................... .403 .180Nickel ......................................... .115 .077Aluminum ................................... 1.277 .566Fluoride ...................................... 12.440 5.518

(c) Subpart (B)—Anode Bake PlantWet Air Pollution Control (Closed TopRing Furnace).



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of anodes baked

Benzo(a)pyrene .......................... 0.146 0.067Antimony .................................... 8.346 3.719Nickel ......................................... 2.378 1.600Aluminum ................................... 26.420 11.720Fluoride ...................................... 257.300 114.200

(d) Subpart B—Anode Bake PlantWet Air Pollution Control (Open TopRing Furnace With Spray Tower Only).



day

Maximumfor monthly

average


Benzo(a)pyrene .......................... 0.002 0.001Antimony .................................... .097 .043Nickel ......................................... .028 .019Aluminum ................................... .306 .136

BAT EFFLUENT LIMITATIONS—Continued


day

Maximumfor monthly

average

Fluoride ...................................... 2.975 1.320

(e) Subpart B—Anode Bake PlantWet Air Pollution Control (Open TopRing Furnace With Wet ElectrostaticPrecipitator and Spray Tower).



day

Maximumfor monthly

average


Benzo(a)pyrene .......................... 0.025 0.011Antimony .................................... 1.409 .628Nickel ......................................... .402 .270Aluminum ................................... 4.461 1.979Fluoride ...................................... 43.440 19.270

(f) Subpart B—Anode Bake Plant WetAir Pollution Control (Tunnel Kiln).



day

Maximumfor monthly

average



(g) Subpart B—Cathode Reprocessing(Operated With Dry Potline Scrubbingand Not Commingled With Other Proc-ess or Nonprocess Waters).



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of cryolite re-covered

Benzo(a)pyrene .......................... 1.181 0.547Antimony .................................... 420.400 189.200Cyanide ...................................... 157.600 70.060Nickel ......................................... 80.570 35.030Aluminum ................................... 273.200 122.600Fluoride ...................................... 29,430.000 13,310.000

(h) Subpart B—Cathode Reprocessing(Operated With Dry Potline Scrubbing


456

40 CFR Ch. I (7–1–98 Edition)§ 421.23

and Commingled With Other Process orNonprocess Waters).



day

Maximumfor monthly

average


Benzo(a)pyrene .......................... 1.181 0.547Antimony .................................... 67.610 30.120Cyanide ...................................... 157.600 70.060Nickel ......................................... 19.270 12.960Aluminum ................................... 214.000 94.930Fluoride ...................................... 2,084.000 924.800

(i) Subpart B—Cathode Reprocessing(Operated With Wet Potline Scrub-bing).



day

Maximumfor monthly

average

mg/kg (pound per millionpounds) of cryolite re-covered

Benzo(a)pyrene .......................... .000 ....................Antimony .................................... .000 .000Cyanide ...................................... .000 .000Nickel ......................................... .000 .000Aluminum ................................... .000 .000Fluoride ...................................... .000 .000

(j) Subpart B—Potline Wet Air Pollu-tion Control (Operated Without Cath-ode Reprocessing).



day

Maximumfor monthly

average

mg/kg (pound per millionpounds) of aluminumproduced from electro-lytic reduction


(k) Subpart B—Potline Wet Air Pol-lution Control (Operated With CathodeReprocessing and Not CommingledWith Other Process or Nonprocess Wa-ters).



day

Maximumfor monthly

average


Benzo(a)pyrene .......................... 0.028 0.013Antimony .................................... 10.060 4.525Cyanide ...................................... 3.771 1.676Nickel ......................................... 1.928 .838Aluminum ................................... 6.537 2.933Fluoride ...................................... 703.900 318.500

(l) Potline Wet Air Pollution ControlCooperated With Cathode Reprocessingand Commingled With Other Process orNonprocess Wastewaters).



day

Maximumfor monthly

average


Benzo(a)pyrene .......................... 0.028 0.013Antimony .................................... 1.618 .721Cyanide ...................................... 3.771 1.676Nickel ......................................... 0.461 .310Aluminum ................................... 5.120 2.271Fluoride ...................................... 49.860 22.130

(m) Subpart B—Potroom Wet AirPollution Control.



day

Maximumfor monthly

average


Benzo(a)pyrene .......................... 0.056 0.026Antimony .................................... 3.204 1.428Nickel ......................................... .913 .614Aluminum ................................... 10.140 4.499Fluoride ...................................... 98.770 43.830

(n) Subpart B—Potline SO2 EmissionsWet Air Pollution Control.


457




day

Maximumfor monthly

average


Benzo(a)pyrene .......................... 0.045 0.021Antimony .................................... 2.588 1.153Nickel ......................................... .738 .496Aluminum ................................... 8.194 3.634Fluoride ...................................... 79.790 35.400

(o) Subpart B—Degassing Wet AirPollution Control.



day

Maximumfor monthly

average


Benzo(a)pyrene .......................... (1) (1)Antimony .................................... 5.036 2.244Nickel ......................................... 1.435 .965Aluminum ................................... 15.940 7.071Fluoride ...................................... 155.300 68.880

1There shall be no discharge allowance for this pollutant.

(p) Subpart B—Pot Repair and PotSoaking.



day

Maximumfor monthly

average


Benzo(a)pyrene .......................... .000 ....................Antimony .................................... .000 .000Nickel ......................................... .000 .000Aluminum ................................... .000 .000Fluoride ...................................... .000 .000

(q) Subpart B—Direct Chill CastingContact Cooling.



day

Maximumfor monthly

average

mg/kg (pound per millionpounds) of aluminumproduct from direct chillcasting

Benzo(a)pyrene .......................... (1) (1)Antimony .................................... 2.565 1.143Nickel ......................................... .731 .492Aluminum ................................... 8.120 3.602Fluoride ...................................... 79.080 35.090


(r) Subpart B—Continuous Rod Cast-ing Contact Cooling.



day

Maximumfor monthly

average

mg/kg (pound per millionpounds) of aluminumproduct from rod cast-ing

Benzo(a)pyrene .......................... (1) (1)Antimony .................................... .201 .089Nickel ......................................... .057 .038Aluminum ................................... .636 .282Fluoride ...................................... 6.188 2.746


(s) Subpart B—Stationary Casting orShot Casting Contact Cooling.



day

Maximumfor monthly

average

mg/kg (pound per millionpounds) of aluminumproduct from stationarycasting or shot casting

Benzo(a)pyrene .......................... .000 ....................Antimony .................................... .000 .000Nickel ......................................... .000 .000Aluminum ................................... .000 .000Fluoride ...................................... .000 .000



Any new source subject to this sub-part shall achieve the following newsource performance standards:

(a) Subpart B—Anode and CathodePaste Plant Wet Air.


458

40 CFR Ch. I (7–1–98 Edition)§ 421.24

POLLUTION CONTROL—NSPS


day

Maximumfor monthly

average

mg/kg (pound per millionpounds) of paste pro-duced

Benzo(a)pyrene .......................... .000 ....................Antimony .................................... .000 .000Nickel ......................................... .000 .000Aluminum ................................... .000 .000Fluoride ...................................... .000 .000Oil and grease ........................... .000 .000Total suspended solids .............. .000 .000pH ............................................... (1) (1)

1 Within the range of 7.0 to 10.0 at all times.

(b) Subpart B—Anode Contact Cool-ing and Briquette Quenching.

NSPS


day

Maximumfor monthly

average

mg/kg (pound per millionpounds) of anodes cast

Benzo(a)pyrene .......................... 0.007 0.003Antimony .................................... .403 .180Nickel ......................................... .115 .077Aluminum ................................... 1.277 .566Fluoride ...................................... 12.440 5.518Oil and grease ........................... 2.090 2.090Total suspended solids .............. 3.135 2.508pH ............................................... (1) (1)


(c) Subpart B—Anode Bake PlantWet Air Pollution Control.

NSPS


day

Maximumfor monthly

average

mg/kg (pound per millionpounds) of anodes baked



(d) Subpart B—Cathode Reprocessing(Operated With Dry Potline Scrubbingand Not Commingled With Other Proc-ess or Nonprocess Waters).

NSPS


day

Maximumfor monthly

average


Benzo(a)pyrene .......................... 1.181 0.547Antimony .................................... 420.400 189.200Cyanide ...................................... 157.600 70.060Nickel ......................................... 80.570 35.030Aluminum ................................... 273.200 122.600Fluoride ...................................... 29,430.000 13,310.000Oil and grease ........................... 350.300 350.300Total suspended solids .............. 2,172.000 945.800pH ............................................... (1) (1)


(e) Subpart B—Cathode Reprocessing(Operated With Dry Potline Scrubbingand Commingled With Other Process orNonprocess Waters).

NSPS


day

Maximumfor monthly

average


Benzo(a)pyrene .......................... 1.181 0.547Antimony .................................... 67.610 30.120Cyanide ...................................... 157.600 70.060Nickel ......................................... 19.270 12.960Aluminum ................................... 214.000 94.930Fluoride ...................................... 2,084.000 924.800Oil and grease ........................... 350.300 350.300Total suspended solids .............. 2,172.000 945.800pH ............................................... (1) (1)


(f) Subpart B—Potline Wet Air Pollu-tion Control.

NSPS


day

Maximumfor monthly

average




(g) Subpart B—Potroom Wet Air Pol-lution Control.


459


NSPS


day

Maximumfor monthly

average




(h) Subpart B—Potline SO2 EmissionsWet Air Pollution Control.

NSPS


day

Maximumfor monthly

average

mg/kg (pound per millionpounds) aluminum pro-duced from electrolyticreduction

Benzo(a)pyrene .......................... 0.045 0.021Antimony .................................... 2.588 1.153Nickel ......................................... .738 .496Aluminum ................................... 8.194 3.634Fluoride ...................................... 79.790 35.400Oil and grease ........................... 13.410 13.410Total suspended solids .............. 20.120 16.090pH ............................................... (1) (1)


(i) Subpart B—Degassing Wet AirPollution Control.

NSPS


day

Maximumfor monthly

average




(j) Subpart B—Pot Repair and PotSoaking.

NSPS


day

Maximumfor monthly

average




(k) Subpart B—Direct Chill CastingContact Cooling.

NSPS


day

Maximumfor monthly

average

mg/kg (pound per millionpounds) of aluminumproduct from direct chillcasting

Benzo(a)pyrene .......................... (1) (1)Antimony .................................... 2.565 1.143Nickel ......................................... .731 .492Aluminum ................................... 8.120 3.602Fluoride ...................................... 79.080 35.090Oil and grease ........................... 13.290 13.290Total suspended solids .............. 19.940 15.950pH ............................................... (2) (2)

1There shall be no discharge allowance for this pollutant.2The pH shall be maintained within the range of 7.0 to 10.0

at all times except for those situations when this waste is dis-charged separately and without commingling with any otherwaste-water in which case the pH shall be within the range of6.0 to 10.0 at all times.

(l) Subpart B—Continuous Rod Cast-ing Contact Cooling.

NSPS


day

Maximumfor monthly

average


Benzo(a)pyrene .......................... (1) (1)Antimony .................................... .201 .089Nickel ......................................... .057 .038Aluminum ................................... .636 .282Fluoride ...................................... 6.188 2.746Oil and grease ........................... 1.040 1.040Total suspended solids .............. 1.560 1.248pH ............................................... (2) (2)

1There shall be no discharge allowance for this pollutant.2 Within the range of 7.0 to 10.0 at all times.


460

40 CFR Ch. I (7–1–98 Edition)§ 421.25

(m) Subpart B—Stationary Castingor Shot Casting Contact Cooling.

NSPS


day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of aluminumproduct from stationarycasting or shot casting



[49 FR 8792, Mar. 8, 1984; 49 FR 26739, June 29,1984, as amended at 52 FR 25558, July 7, 1987]



Except as provided in 40 CFR 403.7,any new source subject to this subpartwhich introduces pollutants into a pub-licly owned treatment works mustcomply with 40 CFR part 403 andachieve the following pretreatmentstandards for new sources. The mass ofwastewater pollutants in primary alu-minum process wastewater introducedinto a POTW shall not exceed the fol-lowing values:

(a) Subpart B—Anode and CathodePaste Plant Wet Air Pollution Control.

PSNS


day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of paste pro-duced

Benzo(a)pyrene .......................... .000 ....................Nickel ......................................... .000 .000Fluoride ...................................... .000 .000

(b) Subpart B—Anode Contact Cool-ing and Briquette Quenching.

PSNS


day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of anodes cast

Benzo(a)pyrene .......................... 0.007 0.003Nickel ......................................... .115 .077Fluoride ...................................... 12.440 5.518

(c) Subpart B—Anode Bake PlantWet Air Pollution Control.

PSNS


day

Maximumfor monthly

average



(d) Subpart B—Cathode Reprocessing(Operated With Dry Potline Scrubbingand Not Commingled With Other Proc-ess or Nonprocess Waters).

PSNS


day

Maximumfor monthly

average


Benzo(a)pyrene .......................... 1.181 0.547Cyanide ...................................... 157.600 70.060Nickel ......................................... 80.570 35.030Fluoride ...................................... 29,430.000 13,310.000

(e) Subpart B—Cathode Reprocessing(Operated With Dry Potline Scrubbingand Commingled With Other Process orNonprocess Waters).

PSNS


day

Maximumfor monthly

average


Benzo(a)pyrene .......................... 1.181 0.547Cyanide ...................................... 157.600 70.060Nickel ......................................... 19.270 12.960Fluoride ...................................... 2,084.000 924.800

(f) Subpart B—Potline Wet Air Pollu-tion Control.

VerDate 22<SEP>98 08:59 Sep 24, 1998 Jkt 179160 PO 00000 Frm 00456 Fmt 8010 Sfmt 8010 Y:\SGML\179160T.XXX APPS27 PsN: 179160T

461


PSNS


day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of aluminumproduced from electro-lytic reduction


(g) Subpart B—Potroom Wet Air Pol-lution Control.

PSNS


day

Maximumfor monthly

average



(h) Subpart B—Potline SO2 EmissionsWet Air Pollution Control.

PSNS


day

Maximumfor monthly

average


Benzo(a)pyrene .......................... 0.045 0.021Nickel ......................................... .738 .496Fluoride ...................................... 79.790 35.400

(i) Subpart B—Degassing Wet AirPollution Control.

PSNS


day

Maximumfor monthly

average



(j) Subpart B—Pot Repair and PotSoaking.

PSNS


day

Maximumfor monthly

average



(k) Subpart B—Direct Chill CastingContact Cooling.

PSNS


day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of aluminumproduct from direct chillcasting

Benzo(a)pyrene .......................... (1) (1)Nickel ......................................... .731 .492Fluoride ...................................... 79.080 35.090


(l) Subpart B—Continuous Rod Cast-ing Contact Cooling.

PSNS


day

Maximumfor monthly

average


Benzo(a)pyrene .......................... (1) (1)Nickel ......................................... .057 .038Fluoride ...................................... 6.188 2.746


(m) Subpart B—Stationary Castingor Shot Casting Contact Cooling.

PSNS


day

Maximumfor monthly

average

mg/kg (pound per millionpounds) of aluminumproduct from stationarycasting or shot casting



462

40 CFR Ch. I (7–1–98 Edition)§ 421.27



Subpart C—Secondary AluminumSmelting Subcategory


§ 421.30 Applicability: Description ofthe secondary aluminum smeltingsubcategory.

The provisions of this subpart are ap-plicable to discharges resulting fromthe recovery, processing, and remeltingof aluminum scrap to produce metallicaluminum alloys.


eral definitions, abbreviations andmethods of analysis set forth in part401 of this chapter shall apply to thissubpart.

(b) The term product shall mean hotaluminum metal.

(c) At-the-source means at or beforethe commingling of delacqueringscrubber liquor blowdown with otherprocess or nonprocess wastewaters.


Except as provided in 40 CFR 125.30through 125.32, any existing pointsource subject to this subpart shallachieve the following effluent limita-tions representing the degree of efflu-ent reduction attainable by the appli-cation of the best practicable tech-nology currently available:

(a) The following limitations estab-lish the quantity or quality of pollut-ants or pollutant properties, whichmay be discharged by a point sourcesubject to the provisions of this sub-part and which uses water for metalcooling, after application of the bestpracticable control technology cur-rently available: There shall be no dis-charge of process wastewater pollut-ants to navigable waters.

(b) The following limitations estab-lish the quantity or quality of pollut-

ants or pollutant properties which maybe discharged by a point source subjectto the provisions of this subpart andwhich uses aluminum fluoride in itsmagnesium removal process(‘‘demagging process’’), after applica-tion of the best practicable controltechnology currently available: Thereshall be no discharge of process waste-water pollutants to navigable waters.

(c) The following limitations estab-lish the quantity or quality of pollut-ants or pollutant properties controlledby this section, which may be dis-charged by a point source subject tothe provisions of this subpart andwhich uses chlorine in its magnesiumremoval process, after application ofthe best practicable control technologycurrently available:

EFFLUENT LIMITATIONS

Effluent characteristicAverage of daily values for 30consecutive days shall not ex-

ceed—

Metric units (kilograms per1,000 kg magnesium re-moved)

TSS ...................................... 175COD ..................................... 6.5pH ........................................ (1)


(d) The following limitations estab-lish the quantity or quality of pollut-ants or pollutant properties which maybe discharged by a point source subjectto the provisions of this subpart andwhich processes residues by wet meth-ods, after application of the best prac-tical control technology currentlyavailable:


Effluent characteristicAverage of daily valuesfor 30 consecutive days

shall not exceed—

Metric units (kilogramsper 1,000 kg of prod-uct)

TSS ................................................ 1.5Fluoride .......................................... 0.4Ammonia (as N) ............................. 0.01Aluminum ....................................... 1.0Copper ........................................... 0.003

VerDate 18<SEP>98 14:12 Oct 01, 1998 Jkt 179160 PO 00000 Frm 00458 Fmt 8010 Sfmt 8010 Y:\SGML\179160T.XXX pfrm13 PsN: 179160T

463


EFFLUENT LIMITATIONS—Continued

Effluent characteristicAverage of daily valuesfor 30 consecutive days

shall not exceed—

COD ............................................... 1.0pH .................................................. (1)




(a) Subpart C—Scrap Drying Wet AirPollution Control.



day

Maximumfor monthly

average

mg/kg (pound’s per mil-lion pounds) of alu-minum scrap dried

Lead ........................................... .000 .000Zinc ............................................ .000 .000Aluminum ................................... .000 .000Ammonia (as N) ......................... .000 .000

(b) Subpart C—Scrap Screening andMilling.



day

Maximumfor monthly

average

mg/kg (pound’s per mil-lion pounds) of alu-minum scrap screenedand milled


(c) Subpart C—Dross Washing.



day

Maximumfor monthly

average

mg/kg (pound’s per mil-lion pounds) of drosswashed

Lead ........................................... 3.043 1.413Zinc ............................................ 11.090 4.565Aluminum ................................... 66.410 29.450Ammonia (as N) ......................... 1,449.000 636.900

(d) Subpart C—Demagging Wet AirPollution Control.



day

Maximumfor monthly

average

mg/kg (lb/million lbs) ofaluminum demagged

Lead ........................................... 0.216 0.100Zinc ............................................ 0.786 0.324Aluminum ................................... 4.711 2.090Ammonia (as N) ......................... 102.800 45.180

(e) Subpart C—Delacquering Wet AirPollution Control.



day

Maximumfor monthly

average

mg/kg (pound’s per mil-lion pounds) of alu-minum delacquered

Lead ........................................... 0.093 0.043Zinc ............................................ 0.340 0.140Aluminum ................................... 2.035 0.903Ammonia (as N) ......................... 44.389 19.514Total phenolics (4-AAP meth-

od) 1 ........................................ 0.004 ....................

1 At the source.

(f) Subpart C—Direct Chill CastingContact Cooling.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of aluminum cast

Lead ........................................... .372 .173Zinc ............................................ 1.356 .558Aluminum ................................... 8.120 3.602Ammonia (as N) ......................... 177.200 77.880

(g) Subpart C—Ingot Conveyor Cast-ing Contact Cooling (When Chlorine


464

40 CFR Ch. I (7–1–98 Edition)§ 421.34

Demagging Wet Air Pollution Controlis Not Practiced On-Site).



day

Maximumfor monthly

average

mg/kg (lb/million lbs) ofaluminum cast

Lead ........................................... 0.019 0.009Zinc ............................................ 0.068 0.028Aluminum ................................... 0.409 0.182Ammonia (as N) ......................... 8.931 3.926

(h) Subpart C—Ingot Conveyor Cast-ing Contact Cooling (When ChlorideDemagging Wet Air Pollution Controlis Practiced On Site).



day

Maximumfor monthly

average



(i) Subpart C—Stationary CastingContact Cooling.



day

Maximumfor monthly

average



(j) Subpart C—Shot Casting ContactCooling.



day

Maximumfor monthly

average



[49 FR 8796, Mar. 8, 1984; 49 FR 26739, June 29,1984, as amended at 49 FR 29794, July 24, 1984;52 FR 25559, July 7, 1987]




NSPS


day

Maximumfor monthly

average.

mg/kg (pounds per millionpounds) of aluminumscrap dried

Lead ........................................... .000 .000Zinc ............................................ .000 .000Aluminum ................................... .000 .000Ammonia (as N) ......................... .000 .000Total suspended solids .............. .000 .000Oil and grease ........................... .000 .000pH ............................................... (1) (1)

1 Within the range of 7.0 to 10.0 at all times


NSPS


day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of aluminumscrap screened andmilled




NSPS


day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of dross washed

Lead ........................................... .000 .000Zinc ............................................ .000 .000Aluminum ................................... .000 .000Ammonia (as N) ......................... .000 .000Total suspended solids .............. .000 .000Oil and grease ........................... .000 .000


465


NSPS—Continued


day

Maximumfor monthly

average

pH ............................................... (1) (1)



NSPS


day

Maximumfor monthly

average


Lead ........................................... 0.216 0.100Zinc ............................................ 0.786 0.324Aluminum ................................... 4.711 2.090Ammonia (as N) ......................... 102.800 45.180Total suspended solids .............. 11.570 9.252Oil and grease ........................... 7.710 7.710pH ............................................... (1) (1)

1Within the range of 7.0 to 10.0 at all times.


NSPS


day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of aluminumdelacquered

Lead ........................................... 0.093 0.043Zinc ............................................ 0.340 0.140Aluminum ................................... 2.035 0.903Ammonia (as N) ......................... 44.389 19.514Total phenolics (4–AAP meth-

od) 1 ........................................ 0.004 ....................Total suspended solids .............. 4.995 3.996Oil and grease ........................... 3.330 3.330pH ............................................... (2) (2)

1 At the source.2 Within the range of 7.0 to 10.0 at all times.


NSPS


day

Maximumfor monthly

average


Lead ........................................... .372 .173Zinc ............................................ 1.356 .558Aluminum ................................... 8.120 3.602Ammonia (as N) ......................... 177.200 77.880Total suspended solids .............. 19.940 15.950Oil and grease ........................... 13.290 13.290

NSPS—Continued


day

Maximumfor monthly

average

pH ............................................... (1) (1)


(g) Subpart C—Ingot Conveyor Cast-ing Contact Cooling (When ChlorineDemagging Wet Air Pollution Controlis Not Practiced On-Site).

NSPS


day

Maximumfor monthly

average


Lead ........................................... 0.019 0.009Zinc ............................................ 0.068 0.028Aluminum ................................... 0.409 0.182Ammonia (as N) ......................... 8.931 3.926Total suspended solids .............. 1.005 0.804Oil and grease ........................... 0.670 0.670pH ............................................... (1) (1)


(h) Subpart C—Ingot Conveyor Cast-ing Contact Cooling (When ChlorineDemagging Wet Air Pollution Controlis Practiced On Site).

NSPS


day

Maximumfor monthly

average





NSPS


day

Maximumfor monthly

average


Lead ........................................... .000 .000Zinc ............................................ .000 .000Aluminum ................................... .000 .000Ammonia (as N) ......................... .000 .000Total suspended solids .............. .000 .000


466

40 CFR Ch. I (7–1–98 Edition)§ 421.35

NSPS—Continued


day

Maximumfor monthly

average

Oil and grease ........................... .000 .000pH ............................................... (1) (1)



NSPS


day

Maximumfor monthly

average


Lead ........................................... .000 .000Zinc ............................................ .000 .000Aluminum ................................... .000 .000Ammonia (as N) ......................... .000 .000Total suspended solids .............. .000 .000Oil and grease ........................... .000 .000pH ............................................... (1 ) (1)


[49 FR 8796, Mar. 8, 1984, as amended at 49 FR29794, July 24, 1984; 52 FR 25559, July 7, 1987]

§ 421.35 Pretreatment standards forexisting sources.

Except as provided in 40 CFR 403.7and 403.13, any existing source subjectto this subpart which introduces pol-lutants into a publicly owned treat-ment works must comply with 40 CFRpart 403 and achieve the followingpretreatment standards for existingsources. The mass of wastewater pol-lutants in secondary aluminum processwastewater introduced into a POTWshall not exceed the following values:


PSES


day

Maximumfor monthly

average


Lead ........................................... .000 .000Zinc ............................................ .000 .000Ammonia (as N) ......................... .000 .000


PSES


day

Maximumfor monthly

average




PSES


day

Maximumfor monthly

average


Lead ........................................... 3.043 1.413Zinc ............................................ 11.090 4.565Ammonia (as N) ......................... 1,449.000 636.000


PSES


day

Maximumfor monthly

average


Lead ........................................... 0.216 0.100Zinc ............................................ 0.786 0.324Amomonia (as N) ....................... 102.800 45.180


PSES


day

Maximumfor monthly

average


Lead ........................................... 0.093 0.043Zinc ............................................ 0.340 0.140Ammonia (as N) ......................... 44.389 19.514Total phenolics (4–AAP) meth-

od)1 ........................................ 0.004 ....................

1At the source.



467


PSES


day

Maximumfor monthly

average


Lead ........................................... .372 .173Zinc ............................................ 1.356 .558Ammonia (as N) ......................... 177.200 77.800

(g) Subpart C—Ingot Conveyor Cast-ing Contact Cooling (When ChlorineDemagging Wet Air Pollution Controlis Not Practiced On-Site).

PSES


day

Maximumfor monthly

average



(h) Subpart C—Ingot Conveyor Cast-ing Contact Cooling. (When ChlorineDemagging Wet Air Pollution Controlis Practiced On Site.)

PSES


day

Maximumfor monthly

average




PSES


day

Maximumfor monthly

average




PSES


day

Maximumfor monthly

average





Except as provided in 40 CFR 403.7,any new source subject to this subpartwhich introduces pollutants into a pub-licly owned treatment works mustcomply with 40 CFR part 403 andachieve the following pretreatmentstandards for new sources. The mass ofwastewater pollutants introduced insecondary aluminum process waste-water into a POTW shall not exceedthe following values:


PSNS


day

Maximumfor monthly

average




PSNS


day

Maximumfor monthly

average





468

40 CFR Ch. I (7–1–98 Edition)§ 421.36

PSNS


day

Maximumfor monthly

average




PSNS


day

Maximumfor monthly

average



(e) Subpart C—Delacquering Wet AirPollution Control

PSNS


day

Maximumfor monthly

average


Lead ........................................... 0.093 0.043Zinc ............................................ 0.340 0.140Ammonia (as N) ......................... 44.389 19.514Total phenolics (4–AAP meth-

od) 1 ........................................ 0.004 ....................

1 At the source.


PSNS


day

Maximumfor monthly

average


Lead ........................................... .372 .173Zinc ............................................ 1.356 .558Ammonia (as N) ......................... 177.200 77.880

(g) Subpart C—Ingot Conveyor Cast-ing Control Cooling (When ChlorineDemagging Wet Air Pollution Controlis Not Practiced On-Site).

PSNS


day

Maximumfor monthly

average



(h) Subpart C—Ingot Conveyor Cast-ing Contact Cooling (When ChlorineDemagging Wet Air Pollution ControlIs Practiced on Site).

PSNS


day

Maximumfor monthly

average




PSNS


day

Maximumfor monthly

average




PSNS


day

Maximumfor monthly

average





469



Subpart D—Primary CopperSmelting Subcategory


§ 421.40 Applicability: Description ofthe primary copper smelting sub-category.

The provisions of this subpart applyto process wastewater discharges re-sulting from the primary smelting ofcopper from ore or ore concentrates.Primary copper smelting includes, butis not limited to, roasting, converting,leaching if preceded by apyrometallurgical step, slag granula-tion and dumping, fire refining, and thecasting of products from these oper-ations.


eral definitions, abbreviations, andmethods of analysis set forth in 40 CFRpart 401 apply to this subpart.

(b) In the event that the wastestreams covered by this subpart arecombined for treatment or dischargewith waste streams covered by Sub-parts E—Primary Electrolytic CopperRefining and/or Subpart I—Metallur-gical Acid Plants, the quantity of eachpollutant or pollutant property dis-charged shall not exceed the quantityof each pollutant or pollutant propertywhich could be discharged if each wastestream were discharged separately.

(c) For all impoundments con-structed prior to the effective date ofthe interim final regulation (40 FR8513), the term ‘‘within the impound-ment,’’ when used to calculate the vol-ume of process wastewater which maybe discharged, means the water surfacearea within the impoundment at maxi-mum capacity plus the surface area ofthe inside and outside slopes of the im-poundment dam as well as the surfacearea between the outside edge of theimpoundment dam and any seepageditch adjacent to the dam upon whichrain falls and is returned to the im-poundment. For the purpose of suchcalculations, the surface area allow-ances set forth above shall not exceed

more than 30 percent of the water sur-face area within the impoundment damat maximum capacity.

(d) For all impoundments con-structed on or after the effective dateof the interim final regulation (the in-terim regulation was effective Feb-ruary 27, 1975; 40 FR 8513, February 27,1975), the term ‘‘within the impound-ment,’’ for purposes of calculating thevolume of process wastewater whichmay be discharged, means the watersurface area within the impoundmentat maximum capacity.


(a) Except as provided in 40 CFR125.30 through 125.32 and paragraph (b)of this section, any existing pointsource subject to this subpart mustachieve the following effluent limita-tions representing the degree of efflu-ent reduction attainable by the appli-cation of the best practicable controltechnology currently available (BPT):There shall be no discharge of processwastewater pollutants to navigable wa-ters.

(b) A process wastewater impound-ment which is designed, constructed,and operated so as to contain the pre-cipitation from the 10-year, 24-hourrainfall event as established by the Na-tional Climatic Center, National Oce-anic and Atmospheric Administration,for the area in which such impound-ment is located may discharge thatvolume of process wastewater which isequivalent to the volume of precipita-tion that falls within the impoundmentin excess of that attributable to the 10-year, 24-hour rainfall event, when suchevent occurs.


Except as provided in 40 CFR 125.30through 125.32, any existing pointsource subject to this subpart shall


470

40 CFR Ch. I (7–1–98 Edition)§ 421.44

achieve the following effluent limita-tions representing the degree of efflu-ent reduction attainable by the appli-cation of the best available technologyeconomically achievable:

(a) Subject to the provisions of para-graph (b) of this section, there shall beno discharge of process wastewater pol-lutants into navigable waters.

(b) A process wastewater impound-ment which is designed, constructed,and operated so as to contain the pre-cipitation from the 25-year, 24-hourrainfall event as established by the Na-tional Climatic Center, National Oce-anic and Atmospheric Administration,for the area in which such impound-ment is located may discharge thatvolume of process wastewater which isequivalent to the volume of precipita-tion that falls within the impoundmentin excess of that attributable to the 25-year, 24-hour rainfall event, when suchevent occurs.

[49 FR 8800, Mar. 8, 1984; 49 FR 26739, June 29,1984]


Any new source subject to this sub-part shall achieve the following newsource performance standards: Thereshall be discharge of process waste-water pollutants into navigable waters.



Except as provided in 40 CFR 403.7,any new source subject to this subpartwhich introduces pollutants into a pub-licly owned treatment works mustcomply with 40 CFR part 403 andachieve the following pretreatmentstandards for new sources. The mass ofwastewater pollutants in primary cop-per smelting process wastewater intro-duced into a POTW shall not exceedthe following values: There shall be nodischarge of process wastewater pollut-ants into a publicly owned treatmentworks.


Subpart E—Primary ElectrolyticCopper Refining Subcategory


§ 421.50 Applicability: description ofthe primary electrolytic copper re-fining subcategory.

The provisions of this subpart applyto process wastewater discharges re-sulting from the electrolytic refiningof primary copper, including, but notlimited to, anode casting performed atrefineries which are not located on-sitewith a smelter, product casting, andby-product recovery.



(b) The term product means electro-lytically refined copper.


Except as provided in 40 CFR 125.30through 125.32, any existing pointsource subject to this subpart mustachieve the following effluent limita-tions representing the degree of efflu-ent reduction attainable by the appli-cation of the best practicable controltechnology currently available (BPT):


Effluent characteristic Maximum forany 1 day

Average ofDaily valuesfor 30 con-

secutive daysshall not ex-

ceed

(Metric units, kg/kkg of prod-uct; English units, poundsper 1,000 lb of product)

Total suspended solids .......... 0.100 0.050Copper ................................... 0.0017 0.0008Cadmium ................................ 0.00006 0.00003Lead ....................................... 0.0006 0.0026


471


EFFLUENT LIMITATIONS—Continued

Effluent characteristic Maximum forany 1 day



ceed

Zinc ........................................ 0.0012 0.0003pH ...........................................

(1) (1)




(a) Subpart E—Casting Contact Cool-ing.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of copper cast

Arsenic ....................................... .692 .309Copper ....................................... .638 .304Nickel ......................................... .274 .184

(b) Subpart E—Anode and CathodeRinse.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of cathodecopper production


(c) Subpart E—Spent Electrolyte.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of copper cath-ode production


(d) Subpart E—Casting Wet Air Pol-lution Control.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of casting pro-duction


(e) Subpart E—By-Product Recovery.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of product re-covered from electro-lytic slimes processing






NSPS


day

Maximumfor monthly

average


Arsenic ....................................... .692 .309Copper ....................................... .638 .304


472

40 CFR Ch. I (7–1–98 Edition)§ 421.55

NSPS—Continued


day

Maximumfor monthly

average

Nickel ......................................... .274 .184Total suspended solids .............. 7.470 5.976pH ............................................... (1) (1)



NSPS


day

Maximumfor monthly

average


Arsenic ....................................... .000 .000Copper ....................................... .000 .000Nickel ......................................... .000 .000Total suspended solids .............. .000 .000pH ............................................... (1) (1)



NSPS


day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of copper cath-ode production


1 Within the range 7.5 to 10.0 at all times.


NSPS


day

Maximumfor monthly

average





NSPS


day

Maximumfor monthly

average







Except as provided in 40 CFR 403.7,any new source subject to this subpartwhich introduces pollutants into a pub-licly owned treatment works mustcomply with 40 CFR part 403 andachieve the following pretreatmentstandards for new sources. The mass ofwastewater pollutants in primary elec-trolytic copper refining process waste-water introduced into a POTW shallnot exceed the following values:


PSNS


day

Maximumfor monthly

average




PSNS


day

Maximumfor monthly

average


Arsenic ....................................... .000 .000Copper ....................................... .000 .000


473


PSNS—Continued


day

Maximumfor monthly

average

Nickel ......................................... .000 .000


PSNS


day

Maximumfor monthly

average




PSNS


day

Maximumfor monthly

average




PSNS


day

Maximumfor monthly

average





Subpart F—Secondary CopperSubcategory


§ 421.60 Applicability: Description ofthe secondary copper subcategory.

The provisions of this subpart are ap-plicable to discharges resulting fromthe recovery, processing, and remeltingof new and used copper scrap and resi-dues to produce copper metal and cop-per alloys, but are not applicable tocontinuous rod casting.


eral definitions, abbreviations, andmethods of analysis set forth in 40 CFRpart 401 shall apply to this subpart.

(b) For all impoundments con-structed prior to the effective date ofthis regulation the term ‘‘within theimpoundment’’ when used for purposesof calculating the volume of processwastewater which may be dischargedshall mean the water surface areawithin the impoundment at maximumcapacity plus the surface area of theinside and outside slopes of the im-poundment dam as well as the surfacearea between the outside edge of theimpoundment dam and any seepageditch immediately adjacent to the damupon which rain falls and is returned tothe impoundment. For the purpose ofsuch calculations, the surface area al-lowances set forth above shall not bemore than 30 percent of the water sur-face area within the impoundment damat maximum capacity.

(c) For all impoundments con-structed on or after the effective dateof this regulation, the term ‘‘withinthe impoundment’’ for purposes of cal-culating the volume of process waste-water which may be discharged shallmean the water surface area within theimpoundment at maximum capacity.

(d) The term pond water surface areawhen used for the purpose of calculat-ing the volume of wastewater whichmay be discharged shall mean thewater surface area of the pond createdby the impoundment for storage ofprocess wastewater at normal operat-ing level. This surface shall in no casebe less than one-third of the surfacearea of the maximum amount of waterwhich could be contained by the im-poundment. The normal operating levelshall be the average level of the pondduring the preceding calendar month.


474

40 CFR Ch. I (7–1–98 Edition)§ 421.62


(a) Except as provided in 40 CFR125.30 through 125.32, any existing pointsource subject to this subpart shallachieve the following effluent limita-tions representing the degree of efflu-ent reduction attainable by the appli-cation of the best practicable tech-nology currently available: Subject tothe provisions of paragraphs (b), (c),and (d) of this section, there shall be nodischarge of process wastewater pollut-ants into navigable waters.

(b) A process wastewater impound-ment which is designed, constructed,and operated so as to contain the pre-cipitation from the 10-year, 24-hourrainfall event as established by the Na-tional Climatic Center, National Oce-anic and Atmospheric Administrationfor the areas in which such impound-ment is located may discharge thatvolume of process wastewater which isequivalent to the volume of precipita-tion that falls within the impoundmentin excess of that attributable to the 10-year, 24-hour rainfall event, when suchevent occurs.

(c) During any calendar month theremay be discharged from a processwastewater impoundment either a vol-ume of process wastewater equal to thedifference between the precipitationfor the month that falls within the im-poundment and either the evaporationfrom the pond water surface area forthat month, or a volume of processwastewater equal to the difference be-tween the mean precipitation for thatmonth that falls within the impound-ment and the mean evaporation fromthe pond water surface area asestablsihed by the National ClimaticCenter, National Oceanic and Atmos-pheric Administration, for the area inwhich such impoundment is located (oras otherwise determined if no monthlydata have been established by the Na-tional Climatic Center), whichever isgreater.

(d) Any process wastewater dis-charged pursuant to paragraph (c) ofthis section shall comply with each ofthe following requirements:

Effluent limitations

Effluent characteristic

Maximum forany 1 day

Average ofdaily valuesfor 30 con-


ceed

Metric Units (mg/l)

English Units (ppm)

TSS ........................................ 50 25Cu ........................................... 0.5 0.25Zn ........................................... 10 5Oil and grease ....................... 20 10pH ........................................... (1 ) (1)


[49 FR 8802, Mar. 8, 1984; 49 FR 26739, June 29,1984]



(a) Subject to the provisions of para-graph (b) of this section, there shall beno discharge of process wastewater pol-lutants into navigable waters.

(b) a process wastewater impound-ment which is designed, constructed,and operated so as to contain the pre-cipitation from the 25-year, 24-hourrainfall event as established by the Na-tional Climatic Center, National Oce-anic and Atmospheric Administration,for the area in which such impound-ment is located may discharge thatvolume of process wastewater which isequivalent to the volume of precipita-tion that falls within the impoundmentin excess of that attributable to the 25-year, 24-hour rainfall event, when suchevent occurs.


Any new source subject to this sub-part shall achieve the following newsource performance standards: Thereshall be no discharge of process waste-water pollutants into navigable waters.


475



Except as provided in 40 CFR 403.7and 403.13, any existing source subjectto this subpart which introduces pol-lutants into a publicly owned treat-ment works must comply with 40 CFRpart 403 and achieve the followingpretreatment standards for existingsources. The mass of wastewater pol-lutants in secondary copper processwastewater introduced into a POTWshall not exceed the following values:

(a) There shall be no discharge ofprocess wastewater pollutants into apublicly owned treatment works sub-ject to the provisions of paragraph (b)of this section.

(b) A process wastewater impound-ment which is designed, constructed,and operated so as to contain the pre-cipitation from the 25-year, 24-hourrainfall event as established by the Na-tional Climatic Center, National Oce-anic and Atmospheric Administration,for the area in which such impound-ment is located may discharge thatvolume of process wastewater equiva-lent to the volume of precipitationthat falls within the impoundment inexcess of that attributable to the 25-year, 24-hour rainfall event, when suchevent occurs.


Except as provided in 40 CFR 403.7any new source subject to this subpartwhich introduces pollutants into a pub-licly owned treatment works mustcomply with 40 CFR part 403 andachieve the following pretreatmentstandards for new sources. The mass ofwastewater pollutants in secondarycopper process wastewater introducedinto a POTW shall not exceed the fol-lowing values: There shall be no dis-charge of process wastewater pollut-ants into a publicly owned treatmentworks.


Subpart G—Primary LeadSubcategory


§ 421.70 Applicability: Description ofthe primary lead subcategory.

The provisions of this subpart are ap-plicable to discharges resulting fromthe production of lead at primary leadsmelters and refineries.

§ 421.71 Specialized definitions.For the purpose of this subpart the

general definitions, abbreviations, andmethods of analysis set forth in 40 CFRpart 401 shall apply to this subpart.


Except as provided in 40 CFR 125.30through 125.32, any existing pointsource subject to this subpart shallachieve the following effluent limita-tions representing the degree of efflu-ent reduction attainable by the appli-cation of the best practicable controltechnology currently available:

(a) Subpart G—Sinter Plant Mate-rials Handling Wet Air Pollution Con-trol.

BPT EFFLUENT LIMITATIONS


day

Maximumfor monthly

average

mg/kkg (pounds per bil-lion pounds) of sinterproduction

Lead ........................................... 594.000 270.000Zinc ............................................ 525.000 219.600Total suspended solids .............. 14,760.000 7,020.000pH ............................................... (1) (1)


(b) Subpart G—Blast Furnace WetAir Pollution Control.



day

Maximumfor monthly

average

mg/kkg (pounds per bil-lion pounds) of blastfurance lead bullionproduced

Lead ........................................... .000 .000Zinc ............................................ .000 .000Total suspended solids .............. .000 .000pH ............................................... (1) (1)



476

40 CFR Ch. I (7–1–98 Edition)§ 421.72

(c) Subpart G—Blast Furnace SlagGranulation.



day

Maximumfor monthly

average


Lead ........................................... 6,155.000 2,798.000Zinc ............................................ 5,446.000 2,276.000Total suspended solids .............. 153,000.000 72,740.000pH ............................................... (1) (1)


(d) Subpart G—Dross ReverberatorySlag Granulation.



day

Maximumfor monthly

average

mg/kkg (pounds per bil-lion pounds) of slag,speiss, or matte granu-lated



(e) Subpart G—Dross ReverberatoryFurnace Wet Air Pollution Control.



day

Maximumfor monthly

average

mg/kkg (pounds per bil-lion pounds) of drossreverberatory furnaceproduction



(f) Subpart G—Zinc Fuming Wet AirPollution Control.



day

Maximumfor monthly

average


Lead ........................................... 702.900 319.500Zinc ............................................ 622.000 259.900Total suspended solids .............. 17,470.000 8,307.000pH ............................................... (1) (1)


(g) Subpart G—Hard Lead RefiningSlag Granulation.



day

Maximumfor monthly

average

mg/kkg (pounds per bil-lion pounds) of hardlead produced



(h) Subpart G—Hard Lead RefiningAir Pollution Control.



day

Maximumfor monthly

average




(i) Subpart G—Facility Washdown.



day

Maximumfor monthly

average

mg/kkg (pounds per bil-lion pounds) of leadbullion produced




477


(j) Subpart G—Employee Handwash.



day

Maximumfor monthly

average


Lead ........................................... 5.445 2.475Zinc ............................................ 4.818 2.013Total suspended solids .............. 135.300 64.350pH ............................................... (1) (1)


(k) Subpart G—Respirator Wash.



day

Maximumfor monthly

average




(l) Subpart G—Laundering of Uni-forms.



day

Maximumfor monthly

average






Except as provided in 40 CFR 125.30through 125.32, any existing pointsource subject to this subpart shallachieve the following effluent limita-tions representing the degree of efflu-ent reduction attainable by the appli-

cation of the best available technologyeconomically achievable:




day

Maximumfor monthly

average


Lead ........................................... 100.800 46.800Zinc ............................................ 367.200 151.200




day

Maximumfor monthly

average

mg/kkg (pounds per bil-lion pounds) of blastfurnace lead bullionproduced

Lead ........................................... .000 .000Zinc ............................................ .000 .000




day

Maximumfor monthly

average


Lead ........................................... .000 .000Zinc ............................................ .000 .000




day

Maximumfor monthly

average


Lead ........................................... 1,612.000 748.400Zinc ............................................ 5,872.000 2,418.000


478

40 CFR Ch. I (7–1–98 Edition)§ 421.74




day

Maximumfor monthly

average


Lead ........................................... .000 .000Zinc ............................................ .000 .000




day

Maximumfor monthly

average

mg/kkg (pounds per bil-lion pounds) of blastfurnance lead bullionproduced

Lead ........................................... .000 .000Zinc ............................................ .000 .000




day

Maximumfor monthly

average


Lead ........................................... .000 .000Zinc ............................................ .000 .000

(h) Subpart G—Hard Lead RefiningWet Air Pollution Control.



day

Maximumfor monthly

average


Lead ........................................... .000 .000Zinc ............................................ .000 .000




day

Maximumfor monthly

average


Lead ........................................... .000 .000Zinc ............................................ .000 .000




day

Maximumfor monthly

average


Lead ........................................... .924 .429Zinc ............................................ 3.366 1.386




day

Maximumfor monthly

average


Lead ........................................... 1.484 .689Zinc ............................................ 5.406 2.226




day

Maximumfor monthly

average

mg/kkg (pounds per bil-lion pounds) of leadbullion produce

Lead ........................................... 4.340 2.015Zinc ............................................ 15.810 6.510


Any new source subject to this sub-part must achieve the following per-formance standards:



479


NSPS


day

Maximumfor monthly

average





NSPS


day

Maximumfor monthly

average





NSPS


day

Maximumfor monthly

average

mg/kkg (pounds per bil-lion pounds) of blastfurnance lead bullionproduced




NSPS


day

Maximumfor monthly

average


Lead ........................................... .000 .000Zinc ............................................ .000 .000Total suspended solids .............. .000 .000

NSPS—Continued


day

Maximumfor monthly

average

pH ............................................... (1) (1)



NSPS


day

Maximumfor monthly

average





NSPS


day

Maximumfor monthly

average





NSPS


day

Maximumfor monthly

average






480

40 CFR Ch. I (7–1–98 Edition)§ 421.75

NSPS


day

Maximumfor monthly

average





NSPS


day

Maximumfor monthly

average



Within the range of 7.5 to 10.0 at all times.


NSPS


day

Maximumfor monthly

average


Lead ........................................... .924 .429Zinc ............................................ 3.366 1.386Total suspended solids .............. 49.500 39.600pH ............................................... (1) (1)



NSPS


day

Maximumfor monthly

average


Lead ........................................... 1.484 .689Zinc ............................................ 5.406 2.226Total suspended solids .............. 79.500 63.600pH ............................................... (1) (1)



NSPS


day

Maximumfor monthly

average






Except as provided in 40 CFR 403.7and 403.13, any existing source subjectto this subpart which introduces pol-lutants into a publicly owned treat-ment works mut comply with 40 CFRpart 403 and achieve the followingpretreatment standards for existingsources. The mass of wastewater pol-lutants in primary lead process waste-water introduced into a POTW shallnot exceed the following values:


PSES


day

Maximumfor monthly

average


Lead ........................................... 100.800 46.800Zinc ............................................ 367.200 151.200


PSES

Pollutant or polluntant propertyMaximumfor any 1

day

Maximumfor monthly

average

mg/kkg (pound per billionpounds) of blastfurnance lead bullionproduced

Lead ........................................... .000 .000Zinc ............................................ .000 .000



481


PSES


day

Maximumfor monthly

average

mg/kkg (pound per billionpounds) of blastfurance lead bullionproduced

Lead ........................................... .000 .000Zinc ............................................ .000 .000


PSES


day

Maximumfor monthly

average


Lead ........................................... 1,612.000 748.400Zinc ............................................ 5,872.000 2,418.000

(e) Subpart G—Dross ReverberatoryFurnance Wet Air Pollution Control.

PSES


day

Maximumfor monthly

average


Lead ........................................... .000 .000Zinc ............................................ .000 .000


PSES


day

Maximumfor monthly

average


Lead ........................................... .000 .000Zinc ............................................ .000 .000


PSES


day

Maximumfor monthly

average


Lead ........................................... .000 .000Zinc ............................................ .000 .000


PSES


day

Maximumfor monthly

average


Lead ........................................... .000 .000Zinc ............................................ .000 .000


PSES


day

Maximumfor monthly

average

mg/kkg (pounds per bil-lion pounds) of leadbullion produced.

Lead ........................................... .000 .000Zinc ............................................ .000 .000


PSES


day

Maximumfor monthly

average


Lead ........................................... .924 .429Zinc ............................................ 3.366 1.386


PSES


day

Maximumfor monthly

average


Lead ........................................... 1.484 .689


482

40 CFR Ch. I (7–1–98 Edition)§ 421.76

PSES—Continued


day

Maximumfor monthly

average

Zinc ............................................ 5.406 2.226


PSES


day

Maximumfor monthly

average


Lead ........................................... 4.340 2.015Zinc ............................................ 15.810 6.510


Except as provided in 40 CFR 403.7,any new source subject to this subpartwhich introduces pollutants into a pub-licly owned treatment works mustcomply with 40 CFR part 403 andachieve the following pretreatmentstandards for new sources. The mass ofwastewater pollutants in primary leadprocess wastewaters introduced into aPOTW shall not exceed the followingvalues.


PSNS


day

Maximumfor monthly

average


Lead ........................................... .000 .000Zinc ............................................ .000 .000


PSNS


day

Maximumfor monthly

average


Lead ........................................... .000 .000Zinc ............................................ .000 .000


PSNS


day

Maximumfor monthly

average


Lead ........................................... .000 .000Zinc ............................................ .000 .000


PSNS


day

Maximumfor monthly

average


Lead ........................................... .000 .000Zinc ............................................ .000 .000


PSNS


day

Maximumfor monthly

average


Lead ........................................... .000 .000Zinc ............................................ .000 .000



483


PSNS


day

Maximumfor monthly

average


Lead ........................................... .000 .000Zinc ............................................ .000 .000


PSNS


day

Maximumfor monthly

average


Lead ........................................... .000 .000Zinc ............................................ .000 .000


PSNS


day

Maximumfor monthly

average


Lead ........................................... .000 .000Zinc ............................................ .000 .000


PSNS


day

Maximumfor monthly

average


Lead ........................................... .000 .000Zinc ............................................ .000 .000


PSNS


day

Maximumfor monthly

average


Lead ........................................... .924 .429Zinc ............................................ 3.366 1.386


PSNS


day

Maximumfor monthly

average


Lead ........................................... 1.484 .689Zinc ............................................ 5.406 2.226


PSNS


day

Maximumfor monthly

average


Lead ........................................... 4.340 2.015Zinc ............................................ 15.810 6.510


Subpart H—Primary ZincSubcategory


§ 421.80 Applicability: Description ofthe primary zinc subcategory.

The provisions of this subpart are ap-plicable to discharges resulting fromthe production of primary zinc by ei-ther electrolytic or pyrolytic means.




484

40 CFR Ch. I (7–1–98 Edition)§ 421.82

(b) The term product shall mean zincmetal.




Effluent characteristicsMaximumfor any 1

day


secutivedays shallnot exceed

(1)Metric Units (kg/kkg of product)

(1)EnglishUnits(poundsper 1,000pounds ofproduct)

TSS ............................................ 0.42 0.21As ............................................... 0.0016 0.0008Cd ............................................... 0.008 0.004Se ............................................... 0.08 0.04Zn ............................................... 0.08 0.04pH ............................................... (1) (1)

Within the range of 6.0 to 9.0.

[49 FR 8808, Mar. 8, 1984; 49 FR 26739, June 29,1984]



(a) Subpart H—Zinc Reduction Fur-nace Wet Air Pollution Control.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of zinc reduced

Cadmium .................................... .334 .134Copper ....................................... 2.135 1.018Lead ........................................... .467 .217Zinc ............................................ 1.702 .701

(b) Subpart H—Preleach of Zinc Con-centrates.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of concentrateleached

Cadmium .................................... .180 .072Copper ....................................... 1.153 .550Lead ........................................... .252 .117Zinc ............................................ .919 .378

(c) Subpart H—Leaching Wet Air Pol-lution Control.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of zinc proc-essed through leaching

Cadmium .................................... .000 .000Copper ....................................... .000 .000Lead ........................................... .000 .000Zinc ............................................ .000 .000

(d) Subpart H—Electrolyte BleedWastewater.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of cathodezinc produced


(e) Subpart H—Cathode and AnodeWash Wastewater.


485




day

Maximumfor monthly

average



(f) Subpart H—Casting Wet Air Pollu-tion Control.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of zinc cast


(g) Subpart H—Casting Contact Cool-ing.



day

Maximumfor monthly

average



(h) Subpart H—Cadmium PlantWastewater.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of cadmiumproduced

Cadmium .................................... 1.234 .494Copper ....................................... 7.899 3.765Lead ........................................... 1.728 .802Zinc ............................................ 6.295 2.592




NSPS


day

Maximumfor monthly

average


Cadmium .................................... .334 .134Copper ....................................... 2.135 1.018Lead ........................................... .467 .217Zinc ............................................ 1.702 .701Total suspended solids .............. 25.020 20.020pH ............................................... (1) (1)



NSPS


day

Maximumfor monthly

average


Cadmium .................................... .180 .072Copper ....................................... 1.153 .550Lead ........................................... .252 .117Zinc ............................................ .919 .378Total suspended solids .............. 13.520 10.810pH ............................................... (1) (1)



NSPS


day

Maximumfor monthly

average


Cadmium .................................... .000 .000Copper ....................................... .000 .000Lead ........................................... .000 .000Zinc ............................................ .000 .000Total suspended solids .............. .000 .000pH ............................................... (1) (1)




486

40 CFR Ch. I (7–1–98 Edition)§ 421.85

NSPS


day

Maximumfor monthly

average


Cadmium .................................... .086 .035Copper ....................................... .553 .264Lead ........................................... .121 .056Zinc ............................................ .441 .182Total suspended solids .............. 6.480 5.184pH ............................................... (1) (1)



NSPS


day

Maximumfor monthly

average





NSPS


day

Maximumfor monthly

average





NSPS


day

Maximumfor monthly

average


Cadmium .................................... .036 .014Copper ....................................... .232 .110

NSPS—Continued


day

Maximumfor monthly

average

Lead ........................................... .051 .024Zinc ............................................ .185 .076Total suspended solids .............. 2.715 2.172pH ............................................... (1) (1)



NSPS


day

Maximumfor monthly

average


Cadmium .................................... 1.234 .494Copper ....................................... 7.899 3.765Lead ........................................... 1.728 .802Zinc ............................................ 6.295 2.592Total suspended solids .............. 92.570 74.050pH ............................................... (1) (1)




Except as provided in 40 CFR 403.7and 403.13, any existing source subjectto this subpart which introduces pol-lutants into a publicly owned treat-ment works must comply with 40 CFRpart 403 and achieve the followingpretreatment standards for existingsources. The mass of wastewater pol-lutants in primary zinc process waste-water introduced into a POTW shallnot exceed the following values:


PSES


day

Maximumfor monthly

average


Cadmium .................................... .334 .134Zinc ............................................ 1.702 .701



487


PSES


day

Maximumfor monthly

average


Cadmium .................................... .180 .072Zinc ............................................ .919 .378


PSES


day

Maximumfor monthly

average


Cadmium .................................... .000 .000Zinc ............................................ .000 .000


PSES


day

Maximumfor monthly

average


Cadmium .................................... .086 .035Zinc ............................................ .441 .182


PSES


day

Maximumfor monthly

average


Cadmium .................................... .150 .060Zinc ............................................ .766 .315


PSES


day

Maximumfor monthly

average


Cadmium .................................... .051 .021Zinc ............................................ .262 .108


PSES


day

Maximumfor monthly

average


Cadmium .................................... .036 .014Zinc ............................................ .185 .076


PSES


day

Maximumfor monthly

average


Cadmium .................................... 1.234 .494Zinc ............................................ 6.295 2.592


Except as provided in 40 CFR 403.7,any new source subject to this subpartwhich introduces pollutants into a pub-licly owned treatment works mustcomply with 40 CFR part 403 andachieve the following pretreatmentstandards for new sources. The mass ofwastewater pollutants in primary zincprocess wastewaters introduced into aPOTW shall not exceed the followingvalues:



488

40 CFR Ch. I (7–1–98 Edition)§ 421.86

PSNS


day

Maximumfor monthly

average


Cadmium .................................... .334 .134Zinc ............................................ 1.702 .701


PSNS


day

Maximumfor monthly

average


Cadmium .................................... .180 .072Zinc ............................................ .919 .378


PSNS


day

Maximumfor monthly

average


Cadmium .................................... .000 .000Zinc ............................................ .000 .000


PSNS


day

Maximumfor monthly

average


Cadmium .................................... .086 .035Zinc ............................................ .441 .182


PSNS


day

Maximumfor monthly

average


Cadmium .................................... .150 .060Zinc ............................................ .766 .315


PSNS


day

Maximumfor monthly

average


Cadmium .................................... .051 .021Zinc ............................................ .262 .108


PSNS


day

Maximumfor monthly

average


Cadmium .................................... 0.036 0.014Zinc ............................................ 0.185 0.076


PSNS


day

Maximumfor monthly

average


Cadmium .................................... 1.234 0.494Zinc ............................................ 6.295 2.592


489



Subpart I—Metallurgical AcidPlants Subcategory

§ 421.90 Applicability: Description ofthe metallurgical acid plants sub-category.

The provisions of this subpart applyto process wastewater discharges re-sulting from or associated with themanufacture of by-product sulfuricacid at primary copper smelters, pri-mary zinc facilities, primary lead fa-cilities, and primary molybdenum fa-cilities, including any associated airpollution control or gas-conditioningsystems for sulfur dioxide off-gasesfrom pyrometallurgical operations.

[49 FR 8811, Mar. 8, 1984, as amended at 50 FR38342, Sept. 20, 1985]

§ 421.91 Specialized definitions.(a) Except as provided below, the gen-


(b) The term product means 100 per-cent equivalent sulfuric acid, H2 SO4

capacity.

[50 FR 38342, Sept. 20, 1985]


Except as provided in 40 CFR 125.30through 125.32, any existing pointsource subject to this subpart mustachieve the following effluent limita-tions representing the degree of efflu-ent reduction attainable by the appli-cation of the best practicable controltechnology currently available (BPT):

SUBPART I—METALLURGICAL ACID PLANT


BPT effluent limitations

Maximumfor any 1

day

Maximumfor monthly

average

mg/kg (pounds per millionpounds of 100% sul-furic acid capacity

Cadmium .................................... 0.180 0.090Copper ....................................... 5.000 2.000

SUBPART I—METALLURGICAL ACID PLANT—Continued


BPT effluent limitations

Maximumfor any 1

day

Maximumfor monthly

average

Lead ........................................... 1.800 0.790Zinc ............................................ 3.600 0.900Fluoride 1 .................................... 212.800 121.000Molybdenum 1 ............................ 40.180 20.790Total suspended solids .............. 304.000 152.000pH ............................................... 2 2

1 For Molybdenum Acid Plants Only.2 Within the range of 6.0 to 9.0 at all times.

[50 FR 38342, Sept. 20, 1985; 50 FR 52776, Dec.26, 1985]



SUBPART I—METALLURGICAL ACID PLANT—BATEFFLUENT LIMITATIONS


day

Maximumfor monthly

average

mg/kg (pounds per/millionpounds) of 100 pct sul-furic acid capacity

Arsenic ....................................... 3.550 1.584Cadmium .................................... 0.511 0.204Copper ....................................... 3.269 1.558Lead ........................................... 0.715 0.332Zinc ............................................ 2.605 1.073Fluoride1 ..................................... 89.390 50.820Molybdenum 1 ............................ [Reserved] [Reserved].

1 For Molybdenum acid plants only.

[50 FR 38343, Sept. 20, 1985, as amended at 55FR 31697, Aug. 3, 1990]




490

40 CFR Ch. I (7–1–98 Edition)§ 421.95

SUBPART I—METALLURGICAL ACID PLANT—NSPS


day

Maximumfor monthly

average

mg/kg (pounds per/millionpounds) of 100 pct sul-furic acid capacity

Arsenic ....................................... 3.550 1.584Cadmium .................................... 0.511 0.204Copper ....................................... 3.269 1.558Lead ........................................... 0.715 0.332Zinc ............................................ 2.605 1.073Fluoride1 ..................................... 89.390 50.820Molybdenum 1 ............................ [Reserved] [Reserved].Total suspended solids .............. 38.310 30.650pH ............................................... (2 ) (2 )

1 For Molybdenum acid plants only.2 Within the range of 7.5 to 10.0 at all times.



Except as provided in 40 CFR 403.7and 403.13, any existing source subjectto this subpart which introduces pol-lutants into a publicly owned treat-ment works must comply with 40 CFRpart 403 and achieve the followingpretreatment standards for existingsources. The mass of wastewater pol-lutants in metallurgical acid plantblowdown introduced into a POTWshall not exceed the following values:

SUBPART I—METALLURGICAL ACID PLANT—PSES


day

Maximumfor monthly

average

mg/kg (pound per/millionpounds) of 100 pct sul-furic acid capacity

Cadmium .................................... 0.511 0.204Zinc ............................................ 2.605 1.073

[50 FR 38343, Sept. 20, 1985]


Except as provided in 40 CFR 403.7,any new source subject to this subpartwhich introduces pollutants into a pub-licly owned treatment works mustcomply with 40 CFR part 403 andachieve the following pretreatmentstandards for new sources. The mass ofwastewater pollutants in metallurgical

acid plant blowdown introduced into aPOTW shall not exceed the followingvalues:

SUBPART I—METALLURGICAL ACID PLANT—PSNS


day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of 100 pct sul-furic acid capacity

Arsenic ....................................... 3.550 1.584Cadmium .................................... 0.511 0.204Copper ....................................... 3.269 1.558Lead ........................................... 0.715 0.332Zinc ............................................ 2.605 1.073Fluoride 1 .................................... 89.390 50.820Molybdenum 1 ............................ [Reserved] [Reserved].

1 For Molybdenum acid plants only.



Subpart J—Primary TungstenSubcategory

§ 421.100 Applicability: Description ofthe primary tungsten subcategory.

The provisions of this subpart are ap-plicable to discharges resulting fromthe production of tungsten at primarytungsten facilities.

[49 FR 8812, Mar. 8, 1984]


general information, abbreviations,and methods of analysis set forth in 40CFR part 401 shall apply to this sub-part.

[49 FR 8812, Mar. 8, 1984]

§ 421.102 Effluent limitations guide-lines representing the degree of ef-fluent reduction attainable by theapplication of the best practicablecontrol technology currently avail-able.



491


(a) Subpart J—Tungstic Acid Rinse.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of tungstic acid(as W) produced

Lead ........................................... 17.230 8.205Zinc ............................................ 59.900 25.030Ammonia (as N) ......................... 5,469.000 2,404.00Total suspended solids .............. 1,682.000 800.000pH ............................................... (1) (1)


(b) Subpart J—Acid Leach Wet AirPollution Control.



day

Maximumfor monthly

average




(c) Subpart J—Alkali Leach Wash.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of sodiumtungstate (as W) pro-duced

Lead ........................................... 0.000 0.000Zinc ............................................ 0.000 0.000Ammonia (as N) ......................... 0.000 0.000Total suspended solids .............. 0.000 0.000pH ............................................... (1) (1)


(d) Subpart J—Alkali Leach WashCondensate.



day

Maximumfor monthly

average


Lead ........................................... 8.057 3.837Zinc ............................................ 28.011 11.700Ammonia (as N) ......................... 2,557.000 1,124.000Total suspended solids .............. 786.200 374.100pH ............................................... (1) (1)


(e) Subpart J—Ion Exchange Raf-finate (Commingled With Other Proc-ess or Nonprocess Waters).



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of ammoniumtungstate (as W) pro-duced

Lead ........................................... 37.160 17.700Zinc ............................................ 129.200 53.970Ammonia (as N) ......................... 11,790.000 5,185.000Total Suspended solids ............. 3,627.000 1,726.000pH ............................................... (1) (1)


(f) Subpart J—Ion Exchange Raf-finate (Not Commingled With OtherProcess or Nonprocess Waters).



day

Maximumfor monthly

average


Lead ........................................... 37.160 17.700Zinc ............................................ 129.200 53.970Ammonia (as N) (2) .................... 11,790.000 5,185.000Total suspended solids .............. 3,627.000 1,726.000pH ............................................... (1) (1)

1 Within the range of 7.0 to 10.0 at all times.2 The effluent limitation guideline for this pollutant does not

apply if (a) the mother liquor feed to the ion exchange proc-ess or the raffinate from the ion exchange process containssulfates at concentrations exceeding 1000 mg/l; (b) this moth-er liquor or raffinate is treated by ammonia steam stripping;and (c) such mother liquor or raffinate is not commingled withany other process or nonprocess waters prior to steam strip-ping for ammonia removal.

(g) Subpart J—Calcium TungstatePrecipitate Wash.


492

40 CFR Ch. I (7–1–98 Edition)§ 421.102



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of calciumtungstate (as W) pro-duced

Lead ........................................... 31.000 14.760Zinc ............................................ 107.800 45.020Ammonia (as N) ......................... 9,838.000 4,325.000Total suspended solids .............. 3,026.000 1,439.000pH ............................................... (1) (1)


(h) Subpart J—Crystallization andDrying of Ammonium Paratungstate.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of ammoniumparatungstate (as W)produced



(i) Subpart J—AmmoniumParatungstate Conversion to OxidesWet Air Pollution Control.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of tungsticoxide (as W) produced



(j) Subpart J—AmmoniumParatungstate Conversion to OxidesWater of Formation.



day

Maximumfor monthly

average




(k) Subpart J—Reduction to Tung-sten Wet Air Pollution Control.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of tungstenmetal produced



(l) Subpart J—Reduction to TungstenWater of Formation.



day

Maximumfor monthly

average


Lead ........................................... .205 .098Zinc ............................................ .714 .298Ammonia (as N) ......................... 65.190 28.660Total suspended solids .............. 20.050 9.536pH ............................................... (1) (1)


(m) Subpart J—Tungsten PowderAcid Leach and Wash.



day

Maximumfor monthly

average


Lead ........................................... 1.008 0.48Zinc ............................................ 3.504 1.464Ammonia (as N) ......................... 319.900 140.700


493


BPT EFFLUENT LIMITATIONS—Continued


day

Maximumfor monthly

average

Total suspended solids .............. 98.400 46.800pH ............................................... (1) (1)


(n) Subpart J—Molybdenum SulfidePrecipitation Wet Air Pollution Con-trol.



day

Maximumfor monthly

average


Lead ........................................... .000 .000Zinc ............................................ .000 .000Ammonia (as N) ......................... .000 .000Total suspended solids .............. .000 .000pH ............................................... (1) (1)


[49 FR 8812, Mar. 8, 1984, as amended at 53 FR1706, Jan. 21, 1988]

§ 421.103 Effluent limitations guide-lines representing the degree of ef-fluent reduction attainable by theapplication of the best availabletechnology economically achiev-able.





day

Maximumfor monthly

average


Lead ........................................... 11.490 5.333Zinc ............................................ 41.850 17.230Ammonia (as N) ......................... 5,469.000 2,404.000




day

Maximumfor monthly

average


Lead ........................................... 1.003 0.466Zinc ............................................ 3.653 1.504Ammonia (as N) .......................... 477.400 209.900




day

Maximumfor monthly

average


Lead ........................................... 0.000 0.000Zinc ............................................ 0.000 0.000Ammonia (as N) .......................... 0.000 0.000




day

Maximumfor monthly

average


Lead ........................................... 5.372 2.494Zinc ............................................ 19.570 8.057Ammonia (as N) .......................... 2,557.000 1,124.000




day

Maximumfor monthly

average


Lead ........................................... 24.780 11.500Zinc ............................................ 90.240 37.160Ammonia (as N) .......................... 11,790.000 5,185.000



494

40 CFR Ch. I (7–1–98 Edition)§ 421.103



day

Maximumfor monthly

average


Lead ........................................... 24.780 11.500Zinc ............................................ 90.240 37.160Ammonia (as N)1 ........................ 11,790.000 5,185.000

1 The effluent limitation for this pollutant does not apply if a)the motor liquor feed to the ion exchange process or the raf-finate from the ion exchange process contains sulfates at con-centrations exceeding 1000 mg/1; b) this mother liquor or raf-finate is treated by ammonia steam stripping; and c) suchmother liquor or raffinate is not commingled with any otherprocess or nonprocess waters prior to steam stripping for am-monia removal.



Pollutant or pollutant propertyMaximum

for any oneday

Maximumfor monthly

average

mg/kg (pounds per/millionpounds) of calciumtungstate (as W) pro-duced





for any oneday

Maximumfor monthly

average

mg/kg (pounds per/millionpounds) of ammoniumparatungstate (as W)produced





for any oneday

Maximumfor monthly

average

mg/kg (pounds per/millionpounds) of tungsticoxide (as W) produced





for any oneday

Maximumfor monthly

average

mg/kg (pounds per/millionpounds) of tungsticoxide (as W) produced





for any oneday

Maximumfor monthly

average

mg/kg (pounds per/millionpounds) of tungstenmetal produced





for any oneday

Maximumfor monthly

average

mg/kg (pounds per/millionpounds) of tungstenmetal produced




495




day

Maximumfor monthly

average






day

Maximumfor monthly

average







NSPS


day

Maximumfor monthly

average




(b) Subpart J—Acid Leach Wet AirPollution

NSPS


day

Maximumfor monthly

average





NSPS


day

Maximumfor monthly

average





NSPS


day

Maximumfor monthly

average






496

40 CFR Ch. I (7–1–98 Edition)§ 421.104

NSPS


day

Maximumfor monthly

average


Lead ........................................... 24.780 11.500Zinc ............................................ 90.240 37.160Ammonia (as N) ......................... 11,790.000 5,185.000Total suspended solids .............. 1,327.000 1,062.000pH ............................................... (1) (1)



NSPS


day

Maximumfor monthly

average


Lead ........................................... 24.780 11.500Zinc ............................................ 90.240 37.160Ammonia (as N) (2) .................... 11,790.000 5,185.000Total suspended solids .............. 1,327.000 1,062.000pH ............................................... (1) (1)

1 Within the range of 7.0 to 10.0 at all times.2 The new source standard for this pollutant does not apply

if (a) the mother liquor feed to the ion exchange process orthe raffinate from the ion exchange process contains sulfatesat concentrations exceeding 1000 mg/l; (b) this mother liquoror raffinate is treated by ammonia steam stripping; and (c)such mother liquor or raffinate is not commingled with anyother process or nonprocess waters prior to steam strippingfor ammonia removal.


NSPS


day

Maximumfor monthly

average





NSPS


day

Maximumfor monthly

average





NSPS


day

Maximumfor monthly

average

mg/kg (pound per millionpounds) of tungsticoxide (as W) produced




NSPS


day

Maximumfor monthly

average






497


NSPS


day

Maximumfor monthly

average


Lead ........................................... .862 .400Zinc ............................................ 3.142 1.294Ammonia (as N) ......................... 410.600 180.500Total suspended solids .............. 46.200 36.960pH ............................................... (1) (1)



NSPS


day

Maximumfor monthly

average


Lead ........................................... .137 .064Zinc ............................................ .499 .205Ammonia (as N) ......................... 65.190 28.660Total suspended solids .............. 7.335 5.868pH ............................................... (1) (1)


(m) Subpart J—Tungsten Power AcidLeach and Wash.

NSPS


day

Maximumfor monthly

average


Lead ........................................... .672 .312Zinc ............................................ 2.448 1.008Ammonia (as N) ......................... 319.900 140.700Total suspended solids .............. 36.000 28.800pH ............................................... (1) (1)



NSPS


day

Maximumfor monthly

average


Lead ........................................... .00 .000Zinc ............................................ .000 .000Ammonia (as N) ......................... .000 .000Total suspended solids .............. .000 .000pH ............................................... (1) (1)




Except as provided in 40 CFR 403.7and 403.13, any existing source subjectto this subpart which introduces pol-lutants into a publicly owned treat-ment works must comply with 40 CFRpart 403 and achieve the followingpretreatment standards for existingsources. The mass of wastewater pol-lutants in primary tungsten processwastewater introduced into a POTWshall not exceed the following values:


PSES


day

Maximumfor monthly

average




PSES


day

Maximumfor monthly

average





498

40 CFR Ch. I (7–1–98 Edition)§ 421.105

PSES


day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of tungstate(as W) produced



PSES


day

Maximumfor monthly

average




PSES


day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of tungstate(as W) produced



PSES


day

Maximumfor monthly

average


Lead ........................................... 24.780 11.500Zinc ............................................ 90.240 37.160

PSES—Continued


day

Maximumfor monthly

average

Ammonia (as N )1 ....................... 11,790.000 5,185.000

1 The pretreatment standard for this pollutant does not applyif (a) the mother liquor feed to the ion exchange process orthe raffinate from the ion exchange process contains sulfatesat concentrations exceeding 1000 mg/l; (b) this mother liquoror raffinate is treated by ammonia steam stripping; and (c)such mother liquor or raffinate is not commingled with anyother process or nonprocess waters prior to steam strippingfor ammonia removal.


PSES


day

Maximumfor monthly

average




PSES


day

Maximumfor monthly

average




PSES


day

Maximumfor monthly

average




499



PSES


day

Maximumfor monthly

average




PSES


day

Maximumfor monthly

average


Lead ........................................... .862 .400Zinc ............................................ 3.142 1.294Ammonia (as N) ......................... 410.600 180.500


PSES


day

Maximumfor monthly

average


Lead ........................................... .137 .064Zinc ............................................ .499 .205Ammonia (as N) ......................... 65.190 28.660


PSES


day

Maximumfor monthly

average




PSES


day

Maximumfor monthly

average

mg/kg (pounds per millionpounds of tungstenmetal produced




Except as provided in 40 CFR 403.7,any new source subject to this subpartwhich introduces pollutants into a pub-licly owned treatment works mustcomply with 40 CFR part 403 andachieve the following pretreatmentstandards for new sources. The mass ofwastewater pollutants in primarytungsten process wastewater intro-duced into a POTW shall not exceedthe following values:


PSNS


day

Maximumfor monthly

average




PSNS


for any oneday

Maximumfor monthly

average

mg/kg (pounds per mil-lion) of tungstic acid (asW) produced




500

40 CFR Ch. I (7–1–98 Edition)§ 421.106

PSNS


for any oneday

Maximumfor monthly

average

mg/kg (pounds per mil-lion) of sodiumtungstate (as W) pro-duced



PSNS


for any oneday

Maximumfor monthly

average

mg/kg (pounds per mil-lion) of sodiumtungstate (as W) pro-duced



PSNS


for any oneday

Maximumfor monthly

average

mg/kg (pounds per mil-lion) of ammoniumtungstate (as W) pro-duced



PSNS


for any oneday

Maximumfor monthly

average

mg/kg (pounds per mil-lion) of ammoniumtungstate (as W) pro-duced

Lead ........................................... 24.780 11.500Zinc ............................................ 90.240 37.160

PSNS—Continued


for any oneday

Maximumfor monthly

average

Ammonia (as N)(1) ..................... 11,790.000 5,185.000

1 The pretreatment standard for this pollutant does not applyif a) the mother liquor feed to the ion exchange process or theraffinate from the ion exchange process contains sulfates atconcentrations exceeding 1000 mg/l; b) this mother liquor orraffinate is treated by ammonia steam stripping; and c) suchmother liquor or raffinate is not commingled with any otherprocess or nonprocess waters prior to steam stripping for am-monia removal.


PSNS


for any oneday

Maximumfor monthly

average

mg/kg (pounds per mil-lion) of calciumtungstate (as W) pro-duced



PSNS


for any oneday

Maximumfor monthly

average

mg/kg (pounds per mil-lion) of ammoniumparatungstate (as W)produced



PSNS


for any oneday

Maximumfor monthly

average

mg/kg (pounds per mil-lion) of tungstic oxide(as W) produced



501



PSNS


for any oneday

Maximumfor monthly

average

mg/kg (pounds per mil-lion) of tungstic oxide(as W) produced



PSNS


for any oneday

Maximumfor monthly

average

mg/kg (pounds per mil-lion) of tungsten metalproduced



PSNS


for any oneday

Maximumfor monthly

average

mg/kg (lb/ million lbs) oftungsten metal produced

Lead ........................................... .137 .064Zinc ............................................ .499 .205Ammonia (as N) ......................... 65.190 28.660


PSNS


for any oneday

Maximumfor monthly

average

mg/kg (parts per million) oftungsten metal produced



PSNS


for any oneday

Maximumfor monthly

average

mg/kg (parts per million)of tungsten metal pro-duced




Subpart K—Primary Columbium-Tantalum Subcategory

§ 421.110 Applicability: Description ofthe primary columbium-tantalumsubcategory.

The provisions of this subpart are ap-plicable to discharges resulting fromthe production of columbium or tanta-lum by primary columbium-tantalumfacilities.

[49 FR 8817, Mar. 8, 1984]



[49 FR 8817, Mar. 8, 1984]



(a) Subpart K—Concentrate Diges-tion Wet Air Pollution Control.


502

40 CFR Ch. I (7–1–98 Edition)§ 421.112



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of concentratedigested

Lead ........................................... 2.612 1.244Zinc ............................................ 9.080 3.794Ammonia (as N) ......................... 829.000 364.500Fluoride ...................................... 217.700 124.400Total suspended solids .............. 255.000 121.300pH ............................................... (1) (1)


(b) Subpart K—Solvent ExtractionRaffinate.



day

Maximumfor monthly

average


Lead ........................................... 3.888 1.851Zinc ............................................ 13.520 5.647Ammonia (as N) ......................... 1,233.000 542.500Fluoride ...................................... 324.000 185.100Total Suspended Solids ............. 379.500 189.500pH ............................................... (1) (1)

AAWithin the range of 7.5 to 10.0 at all times.

(c) Subpart K—Solvent ExtractionWet Air Pollution Control.



day

Maximumfor monthly

average


Lead ........................................... 1.032 .491Zinc ............................................ 3.586 1.498Ammonia (as N) ......................... 327.400 143.900Fluoride ...................................... 85.960 49.120Total suspended solids .............. 100.700 47.890pH ............................................... (1 ) (1)


(d) Subpart K—Precipitation and Fil-tration.



day

Maximumfor monthly

average


Lead ........................................... 5.750 2.738Zinc ............................................ 19.990 8.350Ammonia (as N) ......................... 1,825.000 802.200Fluoride ...................................... 479.100 273.800Total suspended solids .............. 561.300 267.000pH ............................................... (1 ) (1)


(e) Subpart K—Precipitation and Fil-tration Wet Air Pollution Control.



day

Maximumfor monthly

average


Lead ........................................... 26.680 12.700Zinc ............................................ 92.730 38.740Ammonia (as N) ......................... 8,466.000 3,722.000Fluoride ...................................... 2,223.000 1,270.000Total suspended solids .............. 2,604.000 1,239.000pH ............................................... (1 ) (1)


(f) Subpart K—Tantalum Salt Dry-ing.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of tantalumsalt dried

Lead ........................................... 25.430 12.110Zinc ............................................ 88.390 36.930Ammonia (as N) ......................... 8,070.000 3,548.000Fluoride ...................................... 2,119.000 1,211.000Total suspended solids .............. 2,482.000 1,181.000pH ............................................... (1 ) (1)


(g) Subpart K—Oxides Calcining WetAir Pollution Control.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of columbium-tantalum oxide dried

Lead ........................................... 16.140 7.685


503




day

Maximumfor monthly

average

Zinc ............................................ 56.100 23.440Ammonia (as N) ......................... 5,122.000 2,252.000Fluoride ...................................... 1,345.000 768.500Total suspended solids .............. 1,576.000 749.200pH ............................................... (1) (1)


(h) Subpart K—Reduction of Tanta-lum Salt to Metal.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of tantalumsalt reduced

Lead ........................................... 69.750 33.220Zinc ............................................ 242.500 101.300Ammonia (as N) ......................... 22,140.000 9,732.000Fluoride ...................................... 5,813.000 3,322.000Total suspended solids .............. 6,809.000 3,239.000pH ............................................... (1) (1)


(i) Subpart K—Reduction of Tanta-lum Salt to Metal Wet Air PollutionControl.



day

Maximumfor monthly

average


Lead ........................................... .858 .409Zinc ............................................ 2.983 1.246Ammonia (as N) ......................... 272.400 119.700Fluoride ...................................... 71.510 40.860Total suspended solids .............. 83.770 39.840pH ............................................... (1) (1)


(j) Subpart K—Tantalum PowderWash.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of tantalumpower washed

Lead ........................................... 8.582 4.087Zinc ............................................ 29.830 12.470Ammonia (as N) ......................... 2,724.000 1,198.000Fluoride ...................................... 715.200 408.700



day

Maximumfor monthly

average

Total suspended solids .............. 837.800 398.500pH ............................................... (1) (1)


(k) Subpart K—Consolidation andCasting Contact Cooling.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of columbiumor tantalum cast or con-solidated

Lead ........................................... .000 .000Zinc ............................................ .000 .000Ammonia (as N) ......................... .000 .000Fluoride ...................................... .000 .000Total suspended solids .............. .000 .000pH ............................................... (1) (1)


[49 FR 8817, Mar. 8, 1984, as amended at 49 FR29795, July 24, 1984; 50 FR 12253, Mar. 28, 1985]






day

Maximumfor monthly

average


Lead ........................................... .174 .081Zinc ............................................ .635 .261Ammonia (as N) ......................... 82.910 36.450Fluoride ...................................... 21.770 12.440



504

40 CFR Ch. I (7–1–98 Edition)§ 421.113



day

Maximum formonthly aver-

age

mg/Kg (pounds per millionpounds) of concentratedigested

Lead ......................................... 2.592 1.203Zinc .......................................... 9.442 3.888Ammonia (as N) ....................... 1,233.000 542.5000Fluoride .................................... 324.000 185.100




day

Maximumfor monthly

average






day

Maximumfor monthly

average


Lead ........................................... 3.833 1.780Zinc ............................................ 13.960 5.750Ammonia (as N) ......................... 1,825.000 802.200Fluoride ...................................... 479.100 273.800




day

Maximumfor monthly

average


Lead ........................................... 1.778 .826Zinc ............................................ 6.478 2.668Ammonia (as N) ......................... 846.600 372.200Fluoride ...................................... 222.300 127.000




day

Maximumfor monthly

average


Lead ........................................... 16.950 7.871Zinc ............................................ 61.750 25.430Ammonia (as N) ......................... 8,070.000 3,548.000Fluoride ...................................... 2,119.000 1,211.000




day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of columbium-tantalum oxide





day

Maximumfor monthly

average






day

Maximumfor monthly

average


Lead ........................................... .572 .266Zinc ............................................ 2.084 .858Fluoride ...................................... 71.510 40.860



505




day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of tantalumpowder washed





day

Maximumfor monthly

average


Lead ........................................... .000 .000Zinc ............................................ .000 .000Ammonia (as N) ......................... .000 .000Fluoride ...................................... .000 .000

[49 FR 8817, Mar. 8, 1984, as amended at 50 FR12253, Mar. 28, 1985]




NSPS


day

Maximumfor monthly

average


Lead ........................................... .174 .081Zinc ............................................ .635 .261Ammonia (as N) ......................... 82.910 36.450Fluoride ...................................... 21.770 12.440Total suspended solids .............. 9.330 7.464pH ............................................... (1) (1)



NSPS


day


age


Lead ......................................... 2.592 1.203Zinc .......................................... 9.442 3.888Ammonia (as N) ....................... 1,233.000 542.5000Fluoride .................................... 324.000 185.100Total Suspended Solids ........... 138.900 111.100pH ............................................. (1) (1)

AA1 Within the range of 7.5 to 10.0 at all times.


NSPS


day

Maximumfor monthly

average


Lead ........................................... .069 .032Zinc ............................................ .251 .103Ammonia (as N) ......................... 32.790 14.420Fluoride ...................................... 8.610 4.920Total suspended solids .............. 3.690 2.952pH ............................................... (1) (1)



NSPS


day

Maximumfor monthly

average


Lead ........................................... 3.833 1.780Zinc ............................................ 13.960 5.750Ammonia (as N) ......................... 1,825.000 802.200Fluoride ...................................... 479.100 273.800Total suspended solids .............. 205.400 164.300pH ............................................... (1) (1)




506

40 CFR Ch. I (7–1–98 Edition)§ 421.114

NSPS


day

Maximumfor monthly

average


Lead ........................................... 1.778 .826Zinc ............................................ 6.478 2.668Ammonia (as N) ......................... 846.600 372.200Fluoride ...................................... 222.300 127.000Total suspended solids .............. 95.270 76.210pH ............................................... (1) (1)



NSPS


day

Maximumfor monthly

average


Lead ........................................... 16.950 7.871Zinc ............................................ 61.750 25.430Ammonia (as N) ......................... 8,070.000 3,548.000Fluoride ...................................... 2,119.000 1,211.000Total suspended solids .............. 908.200 726.500pH ............................................... (1) (1)



NSPS


day

Maximumfor monthly

average


Lead ........................................... 1.076 .500Zinc ............................................ 3.919 1.614Ammonia (as N) ......................... 512.200 225.200Fluoride ...................................... 134.500 76.840Total suspended solids .............. 57.630 46.110pH ............................................... (1) (1)



NSPS


day

Maximumfor monthly

average


Lead ........................................... 46.500 21.590

NSPS—Continued


day

Maximumfor monthly

average

Zinc ............................................ 169.400 69.750Ammonia (as N) ......................... 22,140.000 9,732.000Fluoride ...................................... 5,813.000 3,322.000Total suspended solids .............. 2,491.000 1,993.000pH ............................................... (1) (1)



NSPS


day

Maximumfor monthly

average


Lead ........................................... .572 .266Zinc ............................................ 2.084 .858Ammonia (as N) ......................... 272.400 119.700Fluoride ...................................... 71.510 40.860Total suspended solids .............. 30.650 24.520pH ............................................... (1) (1)



NSPS


day

Maximumfor monthly

average


Lead ........................................... 5.721 2.656Zinc ............................................ 20.840 8.582Ammonia (as N) ......................... 2,724.000 1,198.000Fluoride ...................................... 715.200 408.700Total suspended solids .............. 306.500 245.200pH ............................................... (1) (1)



NSPS


day

Maximumfor monthly

average




507


NSPS—Continued


day

Maximumfor monthly

average

Fluoride ...................................... .000 .000Total suspended solids .............. .000 .000pH ............................................... (1) (1)


[49 FR 8817, Mar. 8, 1984, as amended at 49 FR29795, July 24, 1984; 50 FR 12253, Mar. 28, 1985]


Except as provided in 40 CFR 403.7and 403.13, any existing source subjectto this subpart which introduces pol-lutants into a publicly owned treat-ment works must comply with 40 CFRpart 403 and achieve the followingpretreatment standards for existingsources. The mass of wastewater pol-lutants in primary columbium-tanta-lum process wastewater introducedinto a POTW shall not exceed the fol-lowing values:


PSES


day

Maximumfor monthly

average




PSES


day


age




PSES


day

Maximumfor monthly

average




PSES


day

Maximumfor monthly

average




PSES


day

Maximumfor monthly

average




PSES


day

Maximumfor monthly

average





508

40 CFR Ch. I (7–1–98 Edition)§ 421.116

PSES


day

Maximumfor monthly

average




PSES


day

Maximumfor monthly

average




PSES


day

Maximumfor monthly

average


Lead ........................................... .572 .266Zinc ............................................ 2.084 .858Ammonia (as N) ......................... 272.400 119.700Fluoride ...................................... 71.510 40.860


PSES


day

Maximumfor monthly

average




PSNS


day

Maximumfor monthly

average





Except as provided in 40 CFR 403.7,any new source subject to this subpartwhich introduces pollutants into a pub-licly owned treatment works mustcomply with 40 CFR part 403 andachieve the following pretreatmentstandards for new sources. The mass ofwastewater pollutants in primary co-lumbium-tantalum process wastewaterintroduced into a POTW shall not ex-ceed the following values:


PSNS


day

Maximumfor monthly

average




PSNS


day


age




509



PSNS


day

Maximumfor monthly

average




PSNS


day

Maximumfor monthly

average




PSNS


day

Maximumfor monthly

average




PSNS


day

Maximumfor monthly

average




PSNS


day

Maximumfor monthly

average




PSNS


day

Maximumfor monthly

average




PSNS


day

Maximumfor monthly

average


Lead ........................................... .572 .266Zinc ............................................ 2.084 .858Ammonia (as N) ......................... 272.400 119.700Fluoride ...................................... 71.510 40.860


PSNS


day

Maximumfor monthly

average




510

40 CFR Ch. I (7–1–98 Edition)§ 421.117

PSNS—Continued


day

Maximumfor monthly

average

Fluoride ...................................... 715.200 408.700


PSNS


day

Maximumfor monthly

average





Subpart L—Secondary SilverSubcategory


§ 421.120 Applicability: Description ofthe secondary silver subcategory.

The provisions of this subpart are ap-plicable to discharges resulting fromthe production of silver from secondarysilver facilities processing photo-graphic and nonphotographic raw ma-terials.

[49 FR 8821, Mar. 8, 1984; 49 FR 26739, June 29,1984]





achieve the following effluent limita-tions representing the degree of efflu-ent reduction attainable by the appli-cation of the best practicable tech-nology currently available:

(a) Subpart L—Film Stripping.



day

Maximumfor monthly

average

mg/troy ounce of silverfrom film stripping

Copper ....................................... 95.670 50.350Zinc ............................................ 73.510 30.720Ammonia (as N) ......................... 6,712.000 2,951.000Total suspended solids .............. 2,065.000 981.800pH ............................................... (1) (1)


(b) Subpart L—Film Stripping WetAir Pollution Control and Precipita-tion and Filtration of Film StrippingSolutions Wet Air Pollution Control.



day

Maximumfor monthly

average

mg/troy ounce of silverfrom precipitation andfiltration of film strippingsolutions

Copper ....................................... 1.843 .970Zinc ............................................ 1.416 .592Ammonia (as N) ......................... 129.300 56.840Total suspended solids .............. 39.770 18.920pH ............................................... (1) (1)


(c) Subpart L—Precipitation and Fil-tration of Film Stripping Solutions.



day

Maximumfor monthly

average

mg/troy ounce of silverprecipitated

Copper ....................................... 109.400 57.570Zinc ............................................ 84.050 35.120Ammonia (as N) ......................... 7,674.000 3,374.000Total suspended solids .............. 2,361.000 1,123.000pH ............................................... (1) (1)


(d) Subpart L—Precipitation and Fil-tration of Photographic Solutions.


511




day

Maximumfor monthly

average


Copper ....................................... 50.540 26.600Zinc ............................................ 38.836 16.226Ammonia (as N) ......................... 3,545.000 1,559.000Total suspended solids .............. 1,090.600 518.700pH ............................................... (1) (1)


(e) Subpart L—Precipitation and Fil-tration of Photographic Solutions WetAir Pollution Control.



day

Maximumfor monthly

average

mg/troy ounce of silverfrom precipitation andfiltration of photo-graphic solutions

Copper ....................................... 23.070 12.140Zinc ............................................ 17.730 7.406Ammonia (as N) ......................... 1,618.000 711.400Total suspended solids .............. 497.800 236.800pH ............................................... (1) (1)


(f) Subpart L—Electrolytic Refining.



day

Maximumfor monthly

average

mg/troy ounce of silverfrom electrolytic refining

Copper ....................................... 1.444 .760Zinc ............................................ 1.110 .464Ammonia (as N) ......................... 101.300 44.540Total suspended solids .............. 31.160 14.820pH ............................................... (1) (1)


(g) Subpart L—Furnace Wet Air Pol-lution Control.



day

Maximumfor monthly

average

mg/troy ounce of silverroasted, smelted, or dried

Copper ....................................... 1.273 .670Zinc ............................................ .978 .409Ammonia (as N) ......................... 89.310 39.260Total suspended solids .............. 27.470 13.070



day

Maximumfor monthly

average

pH ............................................... (1) (1)


(h) Subpart L—Leaching.



day

Maximumfor monthly

average

mg/troy ounce of silverproduced from leaching

Copper ....................................... .164 .086Zinc ............................................ .126 .053Ammonia (as N) ......................... 11.470 5.040Total suspended solids .............. 3.526 1.677pH ............................................... (1) (1)


(i) Subpart L—Leaching Wet Air Pol-lution Control and Precipitation ofNonphotographic Solutions Wet AirPollution Control.



day

Maximumfor monthly

average

mg/troy ounce of silverproduced from leachingor silver precipitated

Copper ....................................... 8.417 4.430Zinc ............................................ 6.468 2.703Ammonia (as N) ......................... 590.500 259.600Total suspended solids .............. 181.700 86.390pH ............................................... (1) (1)


(j) Subpart L—Precipitation and Fil-tration of Nonphotographic Solutions.



day

Maximumfor monthly

average




(k) Subpart L—Floor and EquipmentWashdown.


512

40 CFR Ch. I (7–1–98 Edition)§ 421.123



day

Maximumfor monthly

average

mg/troy ounce of silverproduction

Copper ....................................... .000 .000Zinc ............................................ .000 .000Ammonia (as N) ......................... .000 .000Total suspended solids .............. .000 .000pH ............................................... (1) (1)








day

Maximumfor monthly

average


Copper ....................................... 64.450 30.720Zinc ............................................ 51.360 21.150Ammonia (as N) ......................... 6,712.000 2,951.000




day

Maximumfor monthly

average


Copper ....................................... 1.242 .592Zinc ............................................ .990 .408Ammonia (as N) ......................... 129.300 56.840




day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average


Copper ....................................... 15.540 7.406Zinc ............................................ 12.380 5.099Ammonia (as N) ......................... 1,618.000 711.400




day

Maximumfor monthly

average


Copper ....................................... .973 .464Zinc ............................................ .775 .319Ammonia (as N) ......................... 101.300 44.540



513




day

Maximumfor monthly

average


Copper ....................................... .000 .000Zinc ............................................ .000 .000Ammonia (as N) ......................... .000 .000




day

Maximumfor monthly

average






day

Maximumfor monthly

average


Copper ....................................... 5.671 2.703Zinc ............................................ 4.519 1.861Ammonia (as N) ......................... 590.500 259.600




day

Maximumfor monthly

average






day

Maximumfor monthly

average






NSPS


day

Maximumfor monthly

average


Copper ....................................... 64.450 30.720Zinc ............................................ 51.360 21.150Ammonia (as N) ......................... 6,712.000 2,951.000Total suspended solids .............. 755.300 604.200pH ............................................... (1) (1)



NSPS


day

Maximumfor monthly

average


Copper ....................................... 1.242 .592Zinc ............................................ .990 .408Ammonia (as N) ......................... 129.300 56.840Total suspended solids .............. 14.550 11.640pH ............................................... (1) (1)




514

40 CFR Ch. I (7–1–98 Edition)§ 421.124

NSPS


day

Maximumfor monthly

average





NSPS


day

Maximumfor monthly

average





NSPS


day

Maximumfor monthly

average


Copper ....................................... 15.540 7.406Zinc ............................................ 12.380 5.099Ammonia (as N) ......................... 1,618.000 711.400Total suspended solids .............. 182.100 145.700pH ............................................... (1) (1)



NSPS


day

Maximumfor monthly

average


Copper ....................................... .973 .464Zinc ............................................ .775 .319Ammonia (as N) ......................... 101.300 44.540Total suspended solids .............. 11.400 9.120

NSPS—Continued


day

Maximumfor monthly

average

pH ............................................... (1) (1)



NSPS


day

Maximumfor monthly

average





NSPS


day

Maximumfor monthly

average


Copper ....................................... .110 .053Zinc ............................................ .088 .036Ammonia (as N) ......................... 11.470 5.040Total suspended solids .............. 1.290 1.032pH ............................................... (1) (1)



NSPS


day

Maximumfor monthly

average




(j) Subpart L—Precipitation and Fil-tration of Nonphotograhic Solutions.


515


NSPS


day

Maximumfor monthly

average





NSPS


day

Maximumfor monthly

average






Except as provided in 40 CFR 403.7and 403.13, any existing source subjectto this subpart which introduces pol-lutants into a publicly owned treat-ment works must comply with 40 CFRpart 403 and achieve the followingpretreatment standards for existingsources. The mass of wastewater pol-lutants in secondary silver processwastewater introduced into a POTWmust not exceed the following values.


PSES


day

Maximumfor monthly

average



(b) Subpart L—Film Stripping WetAir Pollution Control and Precipita-

tion and Filtration of Film StrippingSolutions Wet Air Pollution Control.

PSES


day

Maximumfor monthly

average




PSES


day

Maximumfor monthly

average




PSES


day

Maximumfor monthly

average




PSES


day

Maximumfor monthly

average





516

40 CFR Ch. I (7–1–98 Edition)§ 421.126

PSES


day

Maximumfor monthly

average




PSES


day

Maximumfor monthly

average




PSES


day

Maximumfor monthly

average




PSES


day

Maximumfor monthly

average




PSES


day

Maximumfor monthly

average




PSES


day

Maximumfor monthly

average




Except as provided in 40 CFR 403.7,any new source subject to this subpartwhich introduces pollutants into a pub-licly owned treatment works mustcomply with 40 CFR part 403 andachieve the following pretreatmentstandards for new sources. The mass ofwastewater pollutants in secondary sil-ver process wastewater introduced intoa POTW shall not exceed the followingvalues:


PSNS


day

Maximumfor monthly

average





517


PSNS


day

Maximumfor monthly

average




PSNS


day

Maximumfor monthly

average




PSNS


day

Maximumfor monthly

average




PSNS


day

Maximumfor monthly

average




PSNS


day

Maximumfor monthly

average




PSNS


day

Maximumfor monthly

average

mg/troy ounce of silverroasted, smelted or dried



PSNS


day

Maximumfor monthly

average




PSNS


day

Maximumfor monthly

average





518

40 CFR Ch. I (7–1–98 Edition)§ 421.127

PSNS


day

Maximumfor monthly

average




PSNS


day

Maximumfor monthly

average



[49 FR 8821, Mar. 8, 1984; 49 FR 26739, June 29,1984]


Subpart M—Secondary LeadSubcategory


§ 421.130 Applicability: Description ofthe secondary lead subcategory.

The provisions of this subpart are ap-plicable to discharges resulting fromthe production of lead by secondarylead facilities.




Except as provided in 40 CFR 125.30through 125.32, any existing pointsource subject to this subpart shallachieve the following effluent limita-tions representing the degree of efflu-

ent reduction attainable by the appli-cation of the best practicable tech-nology currently available:

(a) Subpart M—Battery Cracking



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of lead scrapproduced

Antimony .................................... 1.932 .862Arsenic ....................................... 1.407 .579Lead ........................................... .283 .135Zinc ............................................ .983 .411Ammonia (as N) ......................... .000 .000Total suspended solids .............. 27.600 13.130pH ............................................... (1) (1)


(b) Subpart M—Blast, Reverberatory,or Rotary Furnace Wet Air PollutionControl



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of lead pro-duced from smelting

Antimony .................................... 7.491 3.341Arsenic ....................................... 5.455 2.245Lead ........................................... 1.096 .522Zinc ............................................ 3.811 1.592Ammonia (as N) ......................... .000 .000Total suspended solids .............. 107.000 50.900pH ............................................... (1) (1)


(c) Subpart M—Kettle Wet Air Pollu-tion Control



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of lead pro-duced from refining

Antimony .................................... .129 .058Arsenic ....................................... .094 .039Lead ........................................... .019 .009Zinc ............................................ .066 .027Ammonia (as N) ......................... .000 .000Total suspended solids .............. 1.845 .878pH ............................................... (1) (1)


(d) Subpart M—Lead PasteDesulfurization


519




day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of lead proc-essed throughdesulfurization

Antimony .................................... .000 .000Arsenic ....................................... .000 .000Lead ........................................... .000 .000Zinc ............................................ .000 .000Ammonia (as N) ......................... .000 .000Total suspended solids .............. .000 .000pH ............................................... (1) (1)


(e) Subpart M—Casting Contact Cool-ing



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of lead cast

Antimony .................................... .634 .283Arsenic ....................................... .462 .190Lead ........................................... .093 .044Zinc ............................................ .323 .135Ammonia (as N) ......................... .000 .000Total suspended solids .............. 9.061 4.310pH ............................................... (1) (1)


(f) Subpart M—Truck Wash.



day

Maximumfor monthly

average




(g) Subpart M—Facility Washdown



day

Maximumfor monthly

average




(h) Subpart M—Battery Case Classi-fication.



day

Maximumfor monthly

average




(i) Subpart M—Employee Handwash.



day

Maximumfor monthly

average




(j) Subpart M—Employee RespiratorWash.


520

40 CFR Ch. I (7–1–98 Edition)§ 421.133

BPT EFFULENT LIMITATIONS


day

Maximumfor monthly

average




(k) Subpart M—Laundering of Uni-forms.



day

Maximumfor monthly

average







(a) Subpart M—Battery Cracking.



day

Maximumfor monthly

average


Antimony .................................... 1.299 .579Arsenic ....................................... .936 .384Lead ........................................... .189 .087Zinc ............................................ .687 .283Ammonia (as N) ......................... .000 .000

(b) Subpart M—Blast, Reverberatory,or Rotary Furnace Wet Air PollutionControl.



day

Maximumfor monthly

average


Antimony .................................... 5.038 2.245Arsenic ....................................... 3.628 1.488Lead ........................................... .731 .339Zinc ............................................ 2.662 1.096Ammonia (as N) ......................... 0.000 0.000

(c) Subpart M—Kettle Wet Air Pollu-tion Control.



day

Maximumfor monthly

average


Antimony .................................... .087 .039Arsenic ....................................... .063 .026Lead ........................................... .013 .006Zinc ............................................ .046 .019Ammonia (as N) ......................... .000 .000

(d) Subpart M—Lead PasteDesulfurization.


521




day

Maximumfor monthly

average



(e) Subpart M—Casting Contact Cool-ing.



day

Maximumfor monthly

average






day

Maximumfor monthly

average



(g) Subpart M—Facility Washdown.



day

Maximumfor monthly

average





Pollutant pollutant propertyMaximumfor any 1

day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average


Antimony .................................... .247 .110Arsenic ....................................... .178 .073Lead ........................................... .036 .017


522

40 CFR Ch. I (7–1–98 Edition)§ 421.134

BAT EFFLUENT LIMITATIONS—Continued


day

Maximumfor monthly

average

Zinc ............................................ .131 .054Ammonia (as N) ......................... .000 .000




NSPS


day

Maximumfor monthly

average


Antimony .................................... 1.299 .579Arsenic ....................................... .936 .384Lead ........................................... .189 .087Zinc ............................................ .687 .283Ammonia (as N) ......................... .000 .000Total suspended solids .............. 10.100 8.076pH ............................................... (1) (1)



NSPS


day

Maximumfor monthly

average


Antimony .................................... 5.038 2.245Arsenic ....................................... 3.628 1.488Lead ........................................... .731 .339Zinc ............................................ 2.662 1.096Ammonia (as N) ......................... 0.000 0.000Total suspended solids .............. 39.150 31.320pH ............................................... (1) (1)



NSPS


day

Maximumfor monthly

average





NSPS


day

Maximumfor monthly

average





NSPS


day

Maximumfor monthly

average






523


NSPS


day

Maximumfor monthly

average





NSPS


day

Maximumfor monthly

average





NSPS


day

Maximumfor monthly

average





NSPS


day

Maximumfor monthly

average





NSPS


day

Maximumfor monthly

average





NSPS


day

Maximumfor monthly

average






524

40 CFR Ch. I (7–1–98 Edition)§ 421.135


Except as provided in 40 CFR 403.7and 403.13, any existing source subjectto this subpart which introduces pol-lutants into a publicly owned treat-ment works must comply with 40 CFRpart 403 and achieve the followingpretreatment standards for existingsources. The mass of wastewater pol-lutants in secondary lead processwastewater introduced into a POTWshall not exceed the following values:


PSES


day

Maximumfor monthly

average




PSES


day

Maximumfor monthly

average


Antimony .................................... 5.038 2.245Arsenic ....................................... 3.628 1.488Lead ........................................... .731 .339Zinc ............................................ 2.662 1.096Ammonia (as N) ......................... .000 .000


PSES


day

Maximumfor monthly

average


Antimony .................................... .087 .039Arsenic ....................................... .063 .026Lead ........................................... .013 .006

PSES—Continued


day

Maximumfor monthly

average

Zinc ............................................ .046 .019Ammonia (as N) ......................... .000 .000


PSES


day

Maximumfor monthly

average




PSES


day

Maximumfor monthly

average


Animony ..................................... .042 .019Arsenic ....................................... .031 .013Lead ........................................... .006 .003Zinc ............................................ .022 .009Ammonia (as N) ......................... .000 .000


PSES


day

Maximumfor monthly

average





525


PSES


day

Maximumfor monthly

average




PSES


day

Maximumfor monthly

average




PSES


day

Maximumfor monthly

average




PSES


day

Maximumfor monthly

average




PSES


day

Maximumfor monthly

average




Except as provided in 40 CFR 403.7,any new source subject to this subpartwhich introduces pollutants into a pub-licly owned treatment works mustcomply with 40 CFR part 403 andachieve the following pretreatmentstandards for new sources. The mass ofwastewater pollutants in secondarylead process wastewater introducedinto a POTW shall not exceed the fol-lowing values:


PSNS


day

Maximumfor monthly

average




PSNS


day

Maximumfor monthly

average


Antimony .................................... 5.038 2.245Arsenic ....................................... 3.628 1.488Lead ........................................... .731 .339Zinc ............................................ 2.662 1.096


526

40 CFR Ch. I (7–1–98 Edition)§ 421.136

PSNS—Continued


day

Maximumfor monthly

average

Ammonia (as N) ......................... .000 .000


PSNS


day

Maximumfor monthly

average




PSNS


day

Maximumfor monthly

average




PSNS


day

Maximumfor monthly

average




PSNS


day

Maximumfor monthly

average




PSNS


day

Maximumfor monthly

average




PSNS


day

Maximumfor monthly

average




PSNS


day

Maximumfor monthly

average




527



PSNS


day

Maximumfor monthly

average




PSNS


day

Maximumfor monthly

average




Subpart N—Primary AntimonySubcategory

SOURCE: 50 FR 38345, Sept. 20, 1985, unlessotherwise noted.

§ 421.140 Applicability: Description ofthe primary antimony subcategory.

The provisions of this subpart are ap-plicable to discharges resulting fromthe production of antimony at primaryantimony facilities.


For the purpose of this subpart thegeneral definitions, abbreviations, andmethods of analysis set forth in 40 CFRpart 401 shall apply to this subpart.


Except as provided in 40 CFR 125.30through 125.32, any existing pointsource subject to this subpart shallachieve the following effluent limita-tions representing the degree of efflu-ent reduction attainable by the appli-cation of the best practicable controltechnology currently available:

(a) Sodium Antimonate AutoclaveWastewater.

BPT LIMITATIONS FOR THE PRIMARY ANTIMONYSUBCATEGORY

Pollutant or pollutant property Maximum forany 1 day


age

mg/kg (pounds per millionpounds) of antimony con-tained in sodiumantimonate product

Antimony ................................ 44.840 20.000Arsenic ................................... 32.650 14.530Mercury .................................. 3.906 1.562Total suspended solids .......... 640.600 304.700pH ........................................... (1) (1)


(b) Fouled anolyte.




age

mg/kg (pounds per millionpounds) of antimonymetal produced byelectrowinning

Antimony ................................ 44.840 20.000Arsenic ................................... 32.650 14.530Mercury .................................. 3.906 1.562Total suspended solids .......... 640.600 304.700pH ........................................... (1) (1)


(c) Cathode Antimony Wash Water.


528

40 CFR Ch. I (7–1–98 Edition)§ 421.143




age


Antimony ................................ 89.680 40.000Arsenic ................................... 65.310 29.060Mercury .................................. 7.812 3.125Total suspended solids .......... 1,281.000 609.300pH ........................................... (1) (1)





BAT LIMITATIONS FOR THE PRIMARY ANTIMONYSUBCATEGORY



age

mg/kg (pounds per millionpounds) of antimony con-tained in sodium antimo-nate product

Antimony ................................ 30.150 13.440Arsenic ................................... 21.720 9.687Mercury .................................. 2.344 0.937

(b) Fouled Anolyte.




age

mg/kg pounds per millionpounds of antimony metalproduced byelectrowinning

Antimony ................................ 30.150 13.440Arsenic ................................... 21.720 9.687

BAT LIMITATIONS FOR THE PRIMARY ANTIMONYSUBCATEGORY—Continued



age

Mercury .................................. 2.344 0.937

(c) Cathode Antimony Wash Water


Pollutant of pollutant property Maximum forany 1 day


age






NSPS FOR THE PRIMARY ANTIMONYSUBCATEGORY


day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of antimonycontained in sodiumantimonate product

Antimony .................................... 30.150 13.440Arsenic ....................................... 21.720 9.687Mercury ...................................... 2.344 0.937Total suspended solids .............. 234.400 187.500pH ............................................... (1) (1)


(b) Fouled Anolyte.



day

Maximumfor monthly

average


Antimony .................................... 30.150 13.440Arsenic ....................................... 21.720 9.687


529


NSPS FOR THE PRIMARY ANTIMONYSUBCATEGORY—Continued


day

Maximumfor monthly

average

Mercury ...................................... 2.344 0.937Total suspended solids .............. 234.400 187.500pH ............................................... (1) (1)


(c) Cathode Antimony Wash Water.



day

Maximumfor monthly

average


Antimony .................................... 60.310 26.870Arsenic ....................................... 43.430 19.370Mercury ...................................... 4.687 1.875Total suspended solids .............. 468.700 375.000pH ............................................... (1) (1)




Except as provided in 40 CFR 403.7,any new source subject to this subpartwhich introduces pollutants into a pub-licly owned treatment works mustcomply with 40 CFR part 403 andachieve the following pretreatmentstandards for new sources. The mass ofwastewater pollutants in primary anti-mony process wastewater introducedinto a POTW shall not exceed the fol-lowing values:


PSNS FOR THE PRIMARY ANTIMONYSUBCATEGORY



age

mg/kg (pounds per millionpounds) of antimony con-tained in sodiumantimonate product


(b) Fouled Anolyte.




age



(c) Cathode Antimony Washwater.




age




Subpart O—Primary BerylliumSubcategory


§ 421.150 Applicability: Description ofthe primary beryllium subcategory.

The provisions of this subpart are ap-plicable to discharges resulting fromthe production of beryllium by primaryberyllium facilities processing beryl-lium ore concentrates or beryllium hy-droxide raw materials.


general definitions, abbreviations andmethods of analysis set forth in 40 CFRpart 401 shall apply to this subpart.


Except as provided in 40 CFR 125.30through 125.32, any existing point


530

40 CFR Ch. I (7–1–98 Edition)§ 421.152

source subject to this subpart shallachieve the following effluent limita-tions representing the degree of efflu-ent reduction attainable by the appli-cation of the best practicable tech-nology currently available:

(a) Solvent Extraction Raffinatefrom Bertrandite Ore.

BPT LIMITATIONS FOR THE PRIMARY BERYLLIUMSUBCATEGORY



age

mg/kg (pounds per millionpounds) of beryllium car-bonate produced frombertrandite ore as beryl-lium

Beryllium ................................ 2,763.000 1,235.000Chromium (total) .................... 988.200 404.300Copper ................................... 4,267.000 2,246.000Cyanide (total) ........................ 651.300 269.500Ammonia (as N) ..................... 299,400.000 131,600.000Fluoride .................................. 78,610.000 44,700.000Total suspended solids .......... 92,090.000 43,800.000pH ........................................... (1) (1)

1 Within the range of 7.5 to 10.0 at all times

(b) Solvent Extraction Raffinatefrom Beryl Ore.




age

mg/kg (pounds per millionpounds) of beryllium car-bonate produced fromberyl ore as beryllium

Beryllium ................................ 270.6 121.0Chromium (total) .................... 96.8 39.6Copper ................................... 418.0 220.0Cyanide (total) ........................ 63.8 26.4Ammonia (as N) ..................... 29,330.0 12,890.0Fluoride .................................. 7,700.0 4,378.0Total suspended solids .......... 9,020.0 4,290.0pH ........................................... (1) (1)


(c) Beryllium Carbonate Filtrate.




age

mg/kg (pounds per millionpounds) of beryllium car-bonate produced as beryl-lium

Beryllium ................................ 263.800 118.000Chromium (total) .................... 94.380 38.610Copper ................................... 407.600 214.500Cyanide (total) ........................ 62.210 25.740Ammonia (as N) ..................... 28,590.000 12,570.000Fluoride .................................. 7,508.000 4,269.000Total suspended .................... 8,795.000 4,183.000pH ........................................... (1) (1)


(d) Beryllium Hydroxide Filtrate.




age

mg/kg (pounds per millionpounds) of beryllium hy-droxide produced as be-ryllium

Beryllium ................................ 167.280 74.800Chromium (Total) ................... 59.840 24.480Copper ................................... 258.400 136.000Cyanide (Total) ...................... 39.440 16.320Ammonia (as N) ..................... 18128.800 7969.600Fluoride .................................. 4760.000 2706.400Total Suspended Solids ......... 5576.000 2652.000pH ........................................... (1) (1)


(e) Beryllium Oxide Calcining Fur-nace Wet Air Pollution Control.




age

mg/kg (pounds per millionpounds) of beryllium oxideproduced

Beryllium ................................ 324.000 145.000Chromium (total) .................... 116.000 47.470Copper ................................... 501.000 263.700Cyanide (total) ........................ 76.470 31.640Ammonia (as N) ..................... 35,150.000 15,450.000Fluoride .................................. 9,230.000 5,248.000


531


BPT LIMITATIONS FOR THE PRIMARY BERYLLIUMSUBCATEGORY—Continued



age

Total suspended solids .......... 10,810.000 5,142.000pH ........................................... (1) (1)


(f) Beryllium hydroxide supernatant.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of berylliumhydroxide producedfrom scrap and resi-dues as beryllium

Beryllium .................................... 282.9 126.5Chromium (total) ........................ 101.2 41.4Copper ....................................... 437.0 230.0Cyanide (total) ............................ 66.7 27.6Ammonia (as N) ......................... 30,660.0 13,480.0Fluoride ...................................... 160,308.0 71,201.0Total suspended solids .............. 9,430.0 4,485.0pH ............................................... (1) (1)


(g) Process water.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of berylliumpebbles produced



(h) Fluoride furnace scrubber.



day

Maximumfor monthly

average


Beryllium .................................... 0.000 0.000Chromium (total) ........................ 0.000 0.000Copper ....................................... 0.000 0.000Cyanide (total) ............................ 0.000 0.000Ammonia (as N) ......................... 0.000 0.000Fluoride ...................................... 0.000 0.000Total suspended solids .............. 0.000 0.000pH ............................................... (1) (1)


(i) Chip treatment wastewater.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of berylliumscrap chips treated

Beryllium .................................... 9.533 4.263Chromium (total) ........................ 3.410 1.395Copper ....................................... 14.730 7.750Cyanide (total) ............................ 2.248 0.930Ammonia (as N) ......................... 1,033.000 454.200Fluoride ...................................... 271.300 154.200Total suspended solids .............. 317.800 151.100pH ............................................... (1) (1)


(j) Beryllium Pebble Plant Area VentWet Air Pollution Control.



day

Maximumfor monthly

average


Beryllium .................................... 0.000 0.000Chromium (total) ........................ 0.000 0.000Copper ....................................... 0.000 0.000Cyanide (total) ............................ 0.000 0.000Ammonia (as N) ......................... 0.000 0.000Fluoride ...................................... 0.000 0.000Total suspended solids .............. 0.000 0.000pH ............................................... 1 1


(k) Beryl Ore Gangue Dewatering.


532

40 CFR Ch. I (7–1–98 Edition)§ 421.152




age

mg/kg (pounds per millionpounds) of beryl ore proc-essed



(l) Bertrandite Ore GangueDewatering.




age

mg/kg (pounds per millionpounds) of bertrandite oreprocessed



(m) Beryl Ore Processing.




age

mg/kg (pounds per millionpounds) of beryl ore proc-essed



(n) Aluminum Iron Sludge (AIS) AreaWastewater.




age

mg/kg (pounds per millionpounds) of total berylliumcarbonate produced asberyllium



(o) Bertrandite Ore Leaching Scrub-ber.




age

mg/kg of bertrandite oreprocessed



(p) Bertrandite Ore Countercurrentand Decantation (CCD) Scrubber.




age




[50 FR 38346, Sept. 20, 1985, as amended at 55FR 31697, Aug. 3, 1990; 55 FR 36932, Sept. 7,1990]


533




(a) Solvent extraction raffinate frombertrandite ore.

BAT LIMITATIONS FOR THE PRIMARY BERYLLIUMSUBCATEGORY


day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of berylliumcarbonate producedfrom bertrandite ore asberyllium

Beryllium .................................... 1,842.000 831.000Chromium (total) ........................ 831.000 336.900Copper ....................................... 2,875.000 1,370.000Cyanide (total) ............................ 449.200 179.700Ammonia (as N) ......................... 299,400.000 131,600.000Fluoride ...................................... 78,610.000 44,700.000

(b) Solvent extraction raffinate fromberyl ore.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of berylliumcarbonate producedfrom beryl ore as beryl-lium

Beryllium .................................... 180.4 81.4Chromium (total) ........................ 81.4 33.0Copper ....................................... 281.6 134.2Cyanide (total) ............................ 44.0 17.6Ammonia (as N) ......................... 29,330.0 12,890.0Fluoride ...................................... 7,700.0 4,378.0

(c) Beryllium carbonate filtrate.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of berylliumcarbonate produced asberyllium





day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of berylliumhydroxide produced asberyllium

Beryllium .................................... 111.520 50.320Chromium (Total) ....................... 50.320 20.400Copper ....................................... 174.080 82.960Cyanide (Total) .......................... 27.200 10.880Ammonia (as N) ......................... 18128.800 7969.600Fluoride ...................................... 4760.000 2706.400

(e) Beryllium oxide calcining furnacewet air pollution control.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of berylliumoxide produced




534

40 CFR Ch. I (7–1–98 Edition)§ 421.153



day

Maximumfor monthly

average



(g) Process water.



day

Maximumfor monthly

average






day

Maximumfor monthly

average


Beryllium .................................... 0.000 0.000Chromium (total) ........................ 0.000 0.000Copper ....................................... 0.000 0.000Cyanide (total) ............................ 0.000 0.000Ammonia (as N) ......................... 0.000 0.000Fluoride ...................................... 0.000 0.000




day

Maximumfor monthly

average


Beryllium .................................... 6.355 2.868Chromium (total) ........................ 2.868 1.163Copper ....................................... 9.920 4.728Cyanide (total) ............................ 1.550 0.620Ammonia (as N) ......................... 1,033.000 454.200Fluoride ...................................... 271.300 154.200

(j) Beryllium pebble plant area ventwet air pollution control.



day

Maximumfor monthly

average






day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of beryl oreprocessed




535




day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of bertranditeore processed





day

Maximumfor monthly

average



(n) Alumium Iron Sludge (AIS) AreaWastewater.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of total beryl-lium carbonate pro-duced as beryllium





day

Maximumfor monthly

average






day

Maximumfor monthly

average







NSPS FOR THE PRIMARY BERYLLIUMSUBCATEGORY


day

Maximumfor monthly

average

mg/kg (pounds millionpounds) of berylliumcarbonate producedfrom bertrandite ore asberyllium

Beryllium .................................... 1,842.000 831.000Chromium (total) ........................ 831.000 336.900Copper ....................................... 2,875.000 1,370.000Cyanide (total) ............................ 449.200 179.700Ammonia (as N) ......................... 299,400.000 131,600.000Fluoride ...................................... 78,610.000 44,700.000Total Suspended solids ............. 33,690.000 26,950.000pH ............................................... (1) (1)



536

40 CFR Ch. I (7–1–98 Edition)§ 421.154




day

Maximumfor monthly

average


Beryllium .................................... 180.4 81.4Chromium (total) ........................ 81.4 33.0Copper ....................................... 281.6 134.2Cyanide (total) ............................ 44.0 17.6Ammonia (as N) ......................... 29,330.0 12,890.0Fluoride ...................................... 7,700.0 4,378.0Total Suspended solids ............. 3,300.0 2,640.0pH ............................................... (1) (1)





day

Maximumfor monthly

average




(d) Beryllium hydroxide filtrate.



day

Maximumfor monthly

average


Beryllium .................................... 111.520 50.320Chromium (Total) ....................... 50.320 20.400Copper ....................................... 174.080 82.960Cyanide (Total) .......................... 27.200 10.880

NSPS FOR THE PRIMARY BERYLLIUMSUBCATEGORY—Continued


day

Maximumfor monthly

average

Ammonia (as N) ......................... 18128.800 7969.600Fluoride ...................................... 4760.000 2706.400Total Suspended Solids ............. 2040.000 1632.000

pH ............................................... (1) (1)





day

Maximumfor monthly

average







day

Maximumfor monthly

average




(g) Process water.


537




day

Maximumfor monthly

average




(h) Fluoride furnance scrubber.



day

Maximumfor monthly

average







day

Maximumfor monthly

average


Beryllium .................................... 6.355 2.868Chromium (total) ........................ 2.868 1.163Copper ....................................... 9.920 4.728Cyanide (total) ............................ 1.550 0.620Ammonia (as N) ......................... 1,033.000 454.200Fluoride ...................................... 271.300 154.200Total suspended solids .............. 116.300 93.000pH ............................................... (1) (1)


(j) Beryllium pebble plant area ventwet air pollution control.



day

Maximumfor monthly

average







day

Maximumfor monthly

average


Beryllium .................................... 0.855 0.386Chromium (Total) ....................... 0.386 0.156Copper ....................................... 1.335 0.636Cyanide (Total) .......................... 0.209 0.083Ammonia (as N) ......................... 139.032 61.120Fluoride ...................................... 36.505 20.756Total Suspended Solids ............. 15.645 12.516pH ............................................... (1) (1)





day

Maximumfor monthly

average






538

40 CFR Ch. I (7–1–98 Edition)§ 421.155



day

Maximumfor monthly

average





NSPS for the Primary Beryllium Subcategory


day

Maximumfor monthly

average







day

Maximumfor monthly

average







day

Maximumfor monthly

average







Except as provided in 40 CFR 403.7,any new source subject to this subpartwhich introduces pollutants into a pub-licly owned treatment works mustcomply with 40 CFR part 403 andachieve the following pretreatmentstandards for new sources. The mass ofwastewater pollutants in primary be-ryllium process wastewater introducedinto a POTW shall not exceed the fol-lowing values:


PSNS FOR THE PRIMARY BERYLLIUMSUBCATEGORY


day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of berylliumcarbonate producedfrom bertrandite ore asberyllium

Beryllium .................................... 1,842.000 831.000Chromium (total) ........................ 831.000 336.900Copper ....................................... 2,875.000 1,370.000Cyanide (total) ............................ 449.200 179.700Ammonia (as N) ......................... 299,400.000 131.600.000Fluoride ...................................... 78,610.000 44,700.000



539




day

Maximumfor monthly

average


Beryllium .................................... 180.4 81.4Chromium (total) ........................ 81.4 33.0Copper ....................................... 281.6 134.2Cyanide (total) ............................ 44.0 17.6Ammonia (as N) ......................... 29.330.0 12,890.0Fluoride ...................................... 7,700.0 4,378.0




day

Maximumfor monthly

average


Beryllium .................................... 175.900 79.370Chromium (total) ........................ 79.370 32.180Copper ....................................... 274.600 130.800Cyanide (total) ............................ 42.900 17.160Ammonia (as N) ......................... 28,590.000 12,570.000Fluoride ...................................... 7,508.000 4,269,000




day

Maximumfor monthly

average






day

Maximumfor monthly

average



(f) Beryllium hydroxide supernatant



day

Maximumfor monthly

average


Beryllium .................................... 188.6 85.1Chromium (total) ........................ 85.1 34.5Copper ....................................... 294.4 140.3Cyanide (total) ............................ 46.0 18.4Ammonia (as N) ......................... 30,660.0 13,480.0Flouride ...................................... 160,308.0 71,201.0

(g) Process water.



day

Maximumfor monthly

average

mg/kg pounds per millionpounds of berylliumpebbles produced




540

40 CFR Ch. I (7–1–98 Edition)§ 421.156



day

Maximumfor monthly

average






day

Maximumfor monthly

average

mg/kg pounds per millionpounds of berylliumscrap chips treated

Beryllium .................................... 6.355 2.868Chromium (total) ........................ 2.868 1.163Copper ....................................... 9.920 4.728Cyanide (total) ............................ 1.550 0.620Ammonia (as N) ......................... 1,033.000 454.200Fluoride ...................................... 271.300 154.200

(j) Beryllium pebble plant area ventwet air pollution control



day

Maximumfor monthly

average






day

Maximumfor monthly

average


Beryllium .................................... 0.855 0.386Chromium (Total) ....................... 0.386 0.156Copper ....................................... 1.335 0.636Cyanide (Total) .......................... 0.209 0.083Ammonia (as N) ......................... 139.032 61.120Flouride ...................................... 36.505 20.756




day

Maximumfor monthly

average






day

Maximumfor monthly

average





541


PSNS FOR THE PRIMARY BERRYLLIUMSUBCATEGORY


day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average





Subpart P—Primary and Second-ary Germanium and GalliumSubcategory


§ 421.180 Applicability: Description ofthe primary and secondary germa-nium and gallium subcategory.

The provisions of this subpart are ap-plicable to discharges resulting fromthe production of germanium orgallium from primary and secondarygermanium and gallium facilities.


general definitions, abbreviations andmethods of analysis set forth in 40 CFRpart 401 shall apply to this subpart.



(a) Still liquor.

BPT LIMITATIONS FOR THE PRIMARY AND SEC-ONDARY GERMANIUM AND GALLIUM SUB-CATEGORY


day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of germaniumchlorinated

Arsenic ....................................... 131.700 58.590Lead ........................................... 26.460 12.600Zinc ............................................ 91.980 38.430Fluoride ...................................... 2,205.000 1,254.000Total suspended solids .............. 2,583.000 1,229.000pH ............................................... (1 ) (1 )


(b) Chlorinator wet air pollution con-trol.


542

40 CFR Ch. I (7–1–98 Edition)§ 421.183



day

Maximumfor monthly

average


Arsenic ....................................... 27.530 12.250Lead ........................................... 5.531 2.634Zinc ............................................ 19.230 8.034Fluoride ...................................... 461.000 262.100Total suspended solids .............. 540.000 256.800pH ............................................... (1 ) (1 )


(c) Germanium hydrolysis filtrate.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of germaniumhydrolyzed



(d) Acid wash and rinse water.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of germaniumwashed

Arsenic ....................................... 325.500 144.800Lead ........................................... 65.400 31.140Zinc ............................................ 227.400 94.990Fluoride ...................................... 5,450.000 3,099.000Total suspended solids .............. 6,385.000 3,037.000pH ............................................... (1 ) (1 )


(e) Gallium hydrolysis filtrate.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of galliumhydrolyzed

Arsenic ....................................... 70.450 31.350Lead ........................................... 14.160 6.742Zinc ............................................ 49.220 20.560Fluoride ...................................... 1,180.000 670.800Total suspended solids .............. 1,382.000 657.300pH ............................................... (1) 1)


(f) Solvent extraction raffinate.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of gallium pro-duced by solvent ex-traction





(a) Still liquor.


543


BAT LIMITATIONS FOR THE PRIMARY AND SEC-ONDARY GERMANIUM AND GALLIUM SUB-CATEGORY


day

Maximumfor monthly

average


Arsenic ....................................... 131.700 58.590Lead ........................................... 26.460 12.600Zinc ............................................ 91.980 38.430Fluoride ...................................... 2,205.000 1,254.000




day

Maximumfor monthly

average


Arsenic ....................................... 27.530 12.250Lead ........................................... 5.531 2.634Zinc ............................................ 19.230 8.034Fluoride ...................................... 461.000 262.100




day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average


Arsenic ....................................... 70.450 31.350Lead ........................................... 14.160 6.742Zinc ............................................ 49.220 20.560Fluoride ...................................... 1,180.000 670.800




day

Maximumfor monthly

average





(a) Still liquor.


544

40 CFR Ch. I (7–1–98 Edition)§ 421.185

NSPS FOR THE PRIMARY AND SECONDARYGERMANIUM AND GALLIUM SUBCATEGORY


day

Maximumfor monthly

average


Arsenic ....................................... 131.70 58.59Lead ........................................... 26.46 12.60Zinc ............................................ 91.98 38.43Fluoride ...................................... 2,205.00 1,254.00Total suspended solids .............. 2,583.00 1,229.00pH ............................................... (1) (1)





day

Maximumfor monthly

average


Arsenic ....................................... 27.530 12.250Lead ........................................... 5.531 2.634Zinc ............................................ 19.230 8.034Fluoride ...................................... 461.000 262.100Total suspended solids .............. 540.000 256.800pH ............................................... (1) (1)




Pollutant or pollutant propertyMaximumfor 1 one

day

Maximumfor monthly

average

mg/kg pounds per millionpounds) of germaniumhydrolyzed






day

Maximumfor monthly

average


Arsenic ....................................... 325.50 144.80Lead ........................................... 65.40 31.14Zinc ............................................ 227.40 94.99Fluoride ...................................... 5,450.00 3,099.00Total suspended solids .............. 6,385.00 3,037.00pH ............................................... (1) (1)





day

Maximumfor monthly

average


Arsenic ....................................... 70.450 31.350Lead ........................................... 14.160 6.742Zinc ............................................ 49.220 20.560Fluoride ...................................... 1,180.000 670.800Total suspended solids .............. 1,382.000 657.300pH ............................................... (1) (1)





day

Maximumfor monthly

average





Except as provided in 40 CFR 403.7and 403.13, any existing source subjectto this subpart which introduces pol-lutants into a publicly owned treat-ment works must comply with 40 CFRpart 403 and achieve the following


545


pretreatment standards for existingsources. The mass of wastewater pol-lutants in primary and secondary ger-manium and gallium process waste-water introduced into a POTW mustnot exceed the following values:

(a) Still liquor.

PSES FOR THE PRIMARY AND SECONDARYGERMANIUM AND GALLIUM SUBCATEGORY


day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average


Arsenic ....................................... 70.450 31.350Lead ........................................... 14.160 6.742Zinc ............................................ 49.220 20.560Fluoride ...................................... 1,180.000 670.800




day

Maximumfor monthly

average




Except as provided in 40 CFR 403.7,any new source subject to this subpartwhich introduces pollutants into a pub-licly owned treatment works mustcomply with 40 CFR part 403 andachieve the following pretreatmentstandards for new sources. The mass ofwastewater pollutants in primary andsecondary germanium and galliumprocess wastewater introduced into aPOTW shall not exceed the followingvalues:

(a) Still Liquor.


546

40 CFR Ch. I (7–1–98 Edition)§ 421.187

PSNS FOR THE PRIMARY AND SECONDARYGERMANIUM AND GALLIUM SUBCATEGORY



age

mg/kg (pounds per/millionpounds of germaniumchlorinated

Arsenic ................................... 131.70 58.59Lead ....................................... 26.46 12.60Zinc ........................................ 91.98 38.43Fluoride .................................. 2,205.00 1,254.00

(b) Chlorinator Wet Air PollutionControl.




age

mg/kg (pounds per/millionpounds of germaniumchlorinated

Arsenic ................................... 27.530 12.250Lead ....................................... 5.531 2.634Zinc ........................................ 19.230 8.034Fluoride .................................. 461.000 262.100

(c) Germanium Hydrolysis Filtrate.




age

mg/kg (pounds per/millionpounds of germaniumhydrolyzed


(d) Acid Wash and Rinse Water.



day

Maximumfor monthly

average

mg/kg (pounds per/millionpounds of germaniumwashed

Arsenic ....................................... 325.50 144.80Lead ........................................... 65.40 31.14Zinc ............................................ 227.40 94.99

PSNS FOR THE PRIMARY AND SECONDARY GER-MANIUM AND GALLIUM SUBCATEGORY—Con-tinued


day

Maximumfor monthly

average

Fluoride ...................................... 5,450.00 3,099.00

(e) Gallium Hydrolysis Filtrate.




age


Arsenic ................................... 70.450 31.350Lead ....................................... 14.160 6.742Zinc ........................................ 49.220 20.560Fluoride .................................. 1,180.000 670.800

(f) Solvent Extraction Raffinate.




age

mg/kg (pounds per millionpounds) of gallium pro-duced by solvent extrac-tion



Subpart Q—Secondary IndiumSubcategory


§ 421.190 Applicability: Description ofthe secondary indium subcategory.

The provisions of this subpart are ap-plicable to discharges resulting fromthe production of indium at secondaryindium facilities processing spent elec-trolyte solutions and scrap indiummetal raw materials.


547




§§ 421.192—421.193 [Reserved]



(a) Displacement Supernatant.

NSPS FOR THE SECONDARY INDIUMSUBCATEGORY



age

mg/kg (pounds per millionpounds) of indium metalproduced

Cadmium ................................ 2.105 0.929Lead ....................................... 2.600 1.238Zinc ........................................ 9.037 3.776Indium .................................... 2.724 1.114Total suspended solids .......... 253.800 120.700pH ........................................... (1) (1)


(b) Spent Electrolyte.

NSPS FOR THE SECONDARY INDIUMSUBCATEGORY



age

mg/kg (pounds per millionpounds) of cathode in-dium produced

Cadmium ................................ 12.170 5.370Lead ....................................... 15.040 7.160Zinc ........................................ 52.270 21.840Indium .................................... 15.750 6.444Total suspended solids .......... 1,468.000 698.100pH ........................................... (1 ) (1 )



Except as provided in 40 CFR 403.7and 403.13, any existing source subjectto this subpart which introduces pol-lutants into a publicly owned treat-ment works must comply with 40 CFRpart 403 and achieve the followingpretreatment standards for existingsources. The mass of wastewater pol-lutants in secondary indium process

wastewater introduced into a POTWmust not exceed the following values:


PSES FOR THE SECONDARY INDIUMSUBCATEGORY


day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of indiummetal produced

Cadmium .................................... 2.105 0.929Lead ........................................... 2.600 1.238Zinc ............................................ 9.037 3.776Indium ........................................ 2.724 1.114


PSES FOR THE SECONDARY INDIUMSUBCATEGORY


day

Maximumfor monthly

average


Cadmium .................................... 12.170 5.370Lead ........................................... 15.040 7.160Zinc ............................................ 52.270 21.840Indium ........................................ 15.750 6.444


Except as provided in 40 CFR 403.7,any new source subject to this subpartwhich introduces pollutants into a pub-licly owned treatment works mustcomply with 40 CFR part 403 andachieve the following pretreatmentstandards for new sources. The mass ofwastewater pollutants in secondary in-dium process wastewater introducedinto a POTW should not exceed the fol-lowing values:


PSNS FOR THE SECONDARY INDIUMSUBCATEGORY



age

mg/kg (pounds per millionpounds) of indium metalproduced

Cadimum ................................ 2.105 0.929Lead ....................................... 2.600 1.238Zinc ........................................ 9.037 3.776


548

40 CFR Ch. I (7–1–98 Edition)§ 421.197

PSNS FOR THE SECONDARY INDIUMSUBCATEGORY—Continued



age

Indium .................................... 2.724 1.114


PSNS FOR THE SECONDARY INDIUMSUBCATEGORY



age


Cadmium ................................ 12.170 5.370Lead ....................................... 15.040 7.160Zinc ........................................ 52.270 21.840Indium .................................... 15.750 6.444


Subpart R—Secondary MercurySubcategory


§ 421.200 Applicability: Description ofthe secondary mercury sub-category.

The provision of this subpart are ap-plicable to discharges resulting fromthe production of mercury from sec-ondary mercury facilities processingrecycled mercuric oxide batteries andother mercury containing scrap rawmaterials.



§§ 421.202—421.203 [Reserved]



(a) Spent battery electrolyte.

NSPS FOR THE SECONDARY MERCURYSUBCATEGORY



age

mg/kg (pounds per millionpounds) of mercury pro-duced from batteries

Lead ....................................... 0.030 0.014Mercury .................................. 0.016 0.006Total suspended solids .......... 1.590 1.272pH ........................................... (1) (1)


(b) Acid wash and rinse water.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of mercurywashed and rinsed

Lead ........................................... 0.00056 0.00026Mercury ...................................... 0.00030 0.00012Total suspended solids .............. 0.03000 0.02400pH ............................................... (1) (1)


(c) Furnace wet air pollution control.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of mercuryprocessed through fur-nace

Lead ........................................... 0.000 0.000Mercury ...................................... 0.000 0.000Total suspended solids .............. 0.000 0.000pH ............................................... (1) (1)




Except as provided in 40 CFR 403.7,any new source subject to this subpartwhich introduces pollutants into a pub-licly owned treatment works mustcomply with 40 CFR part 403 andachieve the following pretreatmentstandards for new sources. The mass ofwastewater pollutants in secondary


549


mercury process wastewater intro-duced into a POTW shall not exceedthe following values:

(a) Spent battery electrolyte.

PSNS FOR THE SECONDARY MERCURYSUBCATEGORY


day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of mercuryproduced from batteries

Lead ........................................... 0.030 0.014Mercury ...................................... 0.016 0.006

(b) Acid wash and rinse water.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of mercurywashed and rinsed

Lead ........................................... 0.00056 0.00026Mercury ...................................... 0.00030 0.00012

(c) Furnance wet air pollution con-trol.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds of mercuryprocessed through fur-nace

Lead ........................................... 0.000 0.000Mercury ...................................... 0.000 0.000


Subpart S—Primary Molybdenumand Rhenium Subcategory


§ 421.210 Applicability: Description ofthe primary molybdenum and rhe-nium subcategory.

The provisions of this subpart are ap-plicable to discharges resulting from

the production of molybdenum and rhe-nium facilities.




Except as provided in 40 CFR 125.30through 125.32, any existing pointsource subject to this subpart shallachieve the following effluent limita-tion representing the degree of effluentreduction attainable by the applicationof the best practicable technology cur-rently available:

(a) Molybdenum sulfide leachate.

BPT LIMITATIONS FOR THE PRIMARYMOLYBDENUM RHENIUM SUBCATEGORY


day

Maximummonthly av-

erage

mg/kg (pounds per millionpounds) of molyb-denum sulfide leached

Arsenic ....................................... 0.968 0.431Lead ........................................... 0.195 0.093Nickle ......................................... 0.889 0.588Selenium .................................... 0.570 0.255Molybdenum ............................... [Reserved] [Reserved].Ammonia (as N) ......................... 61.720 27.130Fluoride ...................................... 16.210 9.214Total suspended solids .............. 18.980 9.029pH ............................................... (1 ) (1 )


(b) Roaster SO2 scrubber.

BPT LIMITATIONS FOR THE PRIMARYMOLYBDENUM AND RHENIUM SUBCATEGORY

Pollutant of pollutant propertyMaximumfor any 1

day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of molyb-denum sulfide roasted

Arsenic ....................................... 3.509 1.561Lead ........................................... 0.705 0.336Nickel ......................................... 3.224 2.133Selenium .................................... 2.065 0.924Molybdenum ............................... [Reserved] [Reserved].Ammonia (as N) ......................... 223.800 98.390Fluoride ...................................... 58.770 33.410Total suspended solids .............. 68.840 32.740


550

40 CFR Ch. I (7–1–98 Edition)§ 421.213

BPT LIMITATIONS FOR THE PRIMARY MOLYB-DENUM AND RHENIUM SUBCATEGORY—Contin-ued


day

Maximumfor monthly

average

pH ............................................... (1) (1)


(c) Molybdic oxide leachate.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of molyb-denum contained inmolybdic oxide leached

Arsenic ....................................... 24.210 10.770Lead ........................................... 4.865 2.317Nickel ......................................... 22.240 14.710Selenium .................................... 14.250 6.371Molybdenum ............................... [Reserved] [Reserved]Ammonia (as N) ......................... 1,544.000 678.800Flouride ...................................... 405.400 230.500Total suspended solids .............. 474.900 225.900pH ............................................... (1) (1)


(d) Hydrogen reduction furnacescrubber.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of molyb-denum metal powderproduced

Arsenic ....................................... 47.860 21.300Lead ........................................... 9.617 4.580Nickel ......................................... 43.970 29.080Selenium .................................... 28.170 12.600Molybdenum ............................... [Reserved] [Reserved]Ammonia (as N) ......................... 3,052.000 1,342.000Fluoride ...................................... 801.400 455.700Total suspended solids .............. 938.800 446.500pH ............................................... (1) (1)


(e) Depleted rhenium scrubbing solu-tion.



day

Maximumfor monthly

average


Arsenic ....................................... 1.497 0.666Lead ........................................... 0.301 0.143Nickel ......................................... 1.375 0.909Selenium .................................... 0.881 0.394Molybdenum ............................... [Reserved] [Reserved]Ammonia (as N) ......................... 95.440 41.960Fluoride ...................................... 25.060 14.250Total suspended solids .............. 29.360 13.960pH ............................................... (1) (1)






BAT LIMITATIONS FOR THE PRIMARYMOLYBDENUM AND RHENIUM SUBCATEGORY


day

Maximumfor monthly

average

mg/kg (pounds millionpounds) of molyb-denum sulfide leached

Arsenic ....................................... 0.644 0.287Lead ........................................... 0.130 0.060Nickel ......................................... 0.255 0.171Selenium .................................... 0.380 0.171Molybdenum ............................... [Reserved] [Reserved]Ammonia (as N) ......................... 61.720 27.130Fluoride ...................................... 16.210 9.214



551




day

Maximumfor monthly

average

mg/kg (pounds per/millionpounds) of molyb-denum sulfide roasted

Arsenic ....................................... 2.334 1.041Lead ........................................... 0.470 0.218Nickel ......................................... 0.924 0.621Selenium .................................... 1.377 0.621Molybdenum ............................... [Reserved] [Reserved]Ammonia (as N) ......................... 223.800 98.390Fluoride ...................................... 58.770 33.410




day

Maximumfor monthly

average

mg/kg (pounds per/millionpounds) of molyb-denum contained inmolybdic oxide leached

Arsenic ....................................... 16.100 7.182Lead ........................................... 3.244 1.506Nickel ......................................... 6.371 4.286Selenium .................................... 9.499 4.286Molybdenum ............................... [Reserved] [Reserved]Ammonia (as N) ......................... 1,544.000 678.800Fluoride ...................................... 405.400 230.500




day

Maximumfor monthly

average

mg/kg (pounds per/millionpounds) of molyb-denum metal powderproduced

Arsenic ....................................... 3.183 1.420Lead ........................................... 0.641 0.298Nickel ......................................... 1.260 0.847Selenium .................................... 1.878 0.847Molybdenum ............................... [Reserved] [Reserved].Ammonia (as N) ......................... 305.300 134.200Fluoride ...................................... 80.150 45.570




day

Maximumfor monthly

average

mg/kg (pounds per/millionpounds) of molyb-denum sulfide roasted


[50 FR 38355, Sept. 20, 1985, as amended at 55FR 31701, 31702, Aug. 3, 1990]




NSPS FOR THE PRIMARY MOLYBDENUM ANDRHENIUM SUBCATEGORY


day

Maximumfor monthly

average


Arsenic ....................................... 0.644 0.287Lead ........................................... 0.130 0.060Nickel ......................................... 0.255 0.171Selenium .................................... 0.380 0.171Molybdenum ............................... [Reserved] [Reserved].Ammonia (as N) ......................... 61.720 27.130Fluoride ...................................... 16.210 9.214Total suspended solids .............. 6.945 5.556pH ............................................... (1) (1)





day

Maximumfor monthly

average


Arsenic ....................................... 2.334 1.041Lead ........................................... 0.470 0.218Nickel ......................................... 0.924 0.621Selenium .................................... 1.377 0.621Molybdenum ............................... [Reserved] [Reserved].


552

40 CFR Ch. I (7–1–98 Edition)§ 421.215

NSPS FOR THE PRIMARY MOLYBDENUM ANDRHENIUM SUBCATEGORY—Continued


day

Maximumfor monthly

average

Ammonia (as N) ......................... 223.800 98.390Fluoride ...................................... 58.770 33.410Total suspended solids .............. 25.190 20.150pH ............................................... (1) (1)





day

Maximumfor monthly

average


Arsenic ....................................... 16.100 7.182Lead ........................................... 3.244 1.506Nickel ......................................... 6.371 4.286Selenium .................................... 9.499 4.286Molybdenum ............................... [Reserved] [Reserved].Ammonia (as N) ......................... 1,544.000 678.800Fluoride ...................................... 405.400 230.500Total suspended solids .............. 173.800 139.000pH ............................................... (1) (1)





day

Maximumfor monthly

average







day

Maximumfor monthly

average







Except as provided in 40 CFR 403.7,any new source subject to this subpartwhich introduces pollutants into a pub-licly owned treatment works mustcomply with 40 CFR part 403 andachieve the following pretreatmentstandards for new sources. The mass ofwastewater pollutants in primary mo-lybdenum and rhenium process waste-water introduced into a POTW shallnot exceed the following values:


PSNS FOR THE PRIMARY MOLYBDENUM ANDRHENIUM SUBCATEGORY


day

Maximumfor monthly

average





553




day

Maximumfor monthly

average






day

Maximumfor monthly

average


Arsenic ....................................... 16.100 7.182Lead ........................................... 3.244 1.506Nickel ......................................... 6.371 4.286Selenium .................................... 9.499 4.286Molybdenum ............................... [Reserved] [Reserved].Ammonia (as N) ......................... 1,544.000 678.800Fluoride ...................................... 405.400 230.500




day

Maximumfor monthly

average






day

Maximumfor monthly

average





Subpart T—Secondary Molyb-denum and Vanadium Sub-category


§ 421.220 Applicability: Description ofthe secondary molybdenum and va-nadium subcategory.

The provisions of this subpart are ap-plicable to discharges resulting fromthe production of molybdenum or vana-dium by secondary molybdenum andvanadium facilities.





(a) Leach tailings.


554

40 CFR Ch. I (7–1–98 Edition)§ 421.222

BPT LIMITATIONS FOR THE SECONDARYMOLYBDENUM AND VANADIUM SUBCATEGORY


day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of technicalgrade molybdenumplus vanadium pluspure grade molyb-denum produced

Arsenic ....................................... 40.778 18.145Chromium ................................... 8.585 3.512Lead ........................................... 8.195 3.902Nickel ......................................... 37.460 24.779Iron ............................................. 23.410 11.902Molybdenum ............................... [Reserved] [Reserved]Ammonia (as N) ......................... 8078.000 3551.000Total Suspended Solids ............. 799.950 380.460

pH ............................................... (1 ) (1 )


(b) Molybdenum filtrate solvent ex-traction raffinate.



day

Maximumfor monthly

average



pH ............................................... (1) (1)


(c) Vanadium decomposition wet airpollution control.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of vanadiumproduced by decompo-sition

Arsenic ....................................... 0.000 0.000Chromium ................................... 0.000 0.000Lead ........................................... 0.000 0.000

BPT LIMITATIONS FOR THE SECONDARY MOLYB-DENUM AND VANADIUM SUBCATEGORY—Con-tinued


day

Maximumfor monthly

average

Nickel ......................................... 0.000 0.000Iron ............................................. 0.000 0.000Molybdenum ............................... 0.000 0.000Ammonia (as N) ......................... 0.000 0.000Total suspended solids .............. 0.000 0.000pH ............................................... (1) (1)


(d) Molybdenum drying wet air pollu-tion control.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of molyb-denum produced

Arsenic ....................................... 0.000 0.000Chromium ................................... 0.000 0.000Lead ........................................... 0.000 0.000Nickel ......................................... 0.000 0.000Iron ............................................. 0.000 0.000Molybdenum ............................... 0.000 0.000Ammonia (as N) ......................... 0.000 0.000Total suspended solids .............. 0.000 0.000pH ............................................... (1) (1)


(e) Pure Grade Molybdenum.




age

mg/kg (pounds per millionpounds) of pure molyb-denum produced

Arsenic ................................... 48.655 21.650Chromium ............................... 10.243 4.190Lead ....................................... 9.778 4.656Nickel ..................................... 44.698 29.566Iron ......................................... 27.936 14.201Molybdenum ........................... [Reserved] [Reserved]Ammonia (as N) ..................... 9638.000 4237.000Total Suspended Solids ......... 954.480 453.960pH ........................................... (1) (1)




555




(a) Leach Tailings.

BAT LIMITATIONS FOR THE SECONDARYMOLYBDENUM AND VANADIUM SUBCATEGORY


day

Maximumfor monthly

average


Arsenic ....................................... 27.120 12.097Chromium ................................... 7.219 2.927Lead ........................................... 5.463 2.536Nickel ......................................... 10.731 7.219Iron ............................................. 23.413 11.902Molybdenum ............................... [Reserved] [Reserved]Ammonia (as N) ......................... 8078.000 3551.000




day

Maximumfor monthly

average


Arsenic ....................................... 80.952 36.108Chronium .................................... 21.548 8.736Lead ........................................... 16.306 7.571Nickel ......................................... 32.031 21.548Iron ............................................. 69.887 35.526Molybdenum ............................... [Reserved] [Reserved]Ammonia (as N) ......................... 24114.000 10600.000




day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of vanadiumproduced by decompo-sition

Arsenic ....................................... 0.000 0.000Chromium ................................... 0.000 0.000Lead ........................................... 0.000 0.000Nickel ......................................... 0.000 0.000Iron ............................................. 0.000 0.000Molybdenum ............................... 0.000 0.000Ammonia (as N) ......................... 0.000 0.000




day

Maximumfor monthly

average






day

Maximumfor monthly

average





556

40 CFR Ch. I (7–1–98 Edition)§ 421.224



(a) Leach tailings.

NSPS FOR THE SECONDARY MOLYBDENUM ANDVANADIUM SUBCATEGORY


day

Maximumfor monthly

average



pH ............................................... (1) (1)





day

Maximumfor monthly

average



pH ............................................... (1) (1)





day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of molyb-denum and vanadiumproduced






day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of molyb-denum and vanadiumproduced






day

Maximumfor monthly

average


Arsenic ....................................... 32.359 14.434Chromium ................................... 8.614 3.492Lead ........................................... 6.518 3.026Nickel ......................................... 12.804 8.614Iron ............................................. 27.936 14.201Molybdenum ............................... [Reserved] [Reserved]Ammonia (as N) ......................... 9638.000 4237.000Total Suspended Solids ............. 349.200 279.360pH ............................................... (1) (1)



557





Except as provided in 40 CFR 403.7,any new source subject to this subpartwhich introduces pollutants into a pub-licly owned treatment works mustcomply with 40 CFR part 403 andachieve the following pretreatmentstandards for new sources. The mass ofwastewater pollutants in secondarymolybdenum and vanadium processwastewater introduced into a POTWshall not exceed the following values:

(a) Leach tailings.

PSNS FOR THE SECONDARY MOLYBDENUM ANDVANADIUM SUBCATEGORY


day

Maximumfor monthly

average






day

Maximumfor monthly

average




PSNS FOR THE SECONDARY MOLYBDENUM ANDVANDADIUM SUBCATEGORY


day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) vanadium pro-duced by decomposi-tion



PSNS FOR THE SECONDARY MOLYBDENUM ANDVANDADIUM SUBCATEGORY


day

Maximumfor monthly

average






day

Maximumfor monthly

average



[50 FR 38357, Sept. 20, 1985, as amended at 55FR 31704, 31705 Aug. 3, 1990]


558

40 CFR Ch. I (7–1–98 Edition)§ 421.227


Subpart U—Primary Nickel andCobalt Subcategory


§ 421.230 Applicability: Description ofthe primary nickel and cobalt sub-category.

The provisions of this subpart are ap-plicable to discharges resulting fromthe production of nickel or cobalt byprimary nickel and cobalt facilitiesprocessing ore concentrate raw mate-rials.





(a) Raw Material dust control.

BPT LIMITATIONS FOR THE PRIMARY NICKEL ANDCOBALT SUBCATEGORY


day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of copper,nickel, and cobalt in thecrushed raw material

Copper ....................................... 0.146 0.077Nickel ......................................... 0.148 0.098Ammonia (as N) ......................... 10.260 4.512Cobalt ......................................... 0.016 0.007Total suspended solids .............. 3.157 1.502pH ............................................... (1 ) (1 )


(b) Nickel wash water.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of nickel pow-der washed

Copper ....................................... 0.064 0.034Nickel ......................................... 0.065 0.043Ammonia (as N) ......................... 4.515 1.985Cobalt ......................................... 0.007 0.003Total suspended solids .............. 1.389 0.660pH ............................................... (1 ) (1 )


(c) Nickel reduction decant.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of nickel pro-duced

Copper ....................................... 24.120 12.700Nickel ......................................... 24.370 16.120Ammonia (as N) ......................... 1,692.000 743.900Cobalt ......................................... 2.666 1.143Total suspended solids .............. 520.500 247.600pH ............................................... (1 ) (1 )


(d) Cobalt reduction decant.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of cobalt pro-duced

Copper ....................................... 40.660 21.400Nickel ......................................... 41.080 27.180Ammonia (as N) ......................... 2,852.000 1,254.000Cobalt ......................................... 4.494 1.926Total suspended solids .............. 877.300 417.300pH ............................................... (1 ) (1 )





559



(a) Raw material dust control.

BAT LIMITATIONS FOR THE PRIMARY NICKEL ANDCOBALT SUBCATEGORY


day

Maximumfor monthly

average


Copper ....................................... 0.099 0.047Nickel ......................................... 0.042 0.028Ammonia (as N) ......................... 10.260 4.512Cobalt ......................................... 0.011 0.005




day

Maximumfor monthly

average






day

Maximumfor monthly

average


Copper ....................................... 16.250 7.744Nickel ......................................... 6.982 4.697Ammonia (as N) ......................... 1,692.000 743.900Cobalt ......................................... 1.777 0.889




day

Maximumfor monthly

average


Copper ....................................... 27.390 13.050Nickel ......................................... 11.770 7.917Ammonia (as N) ......................... 2,852.000 1,254.000Cobalt ......................................... 2.996 1.498

[50 FR 38359, Sept. 20, 1985; 50 FR 41144, Oct.9, 1985]



(a) Raw Material Dust Control.

NSPS FOR THE PRIMARY NICKEL AND COBALTSUBCATEGORY


day

Maximumfor monthly

average


Copper ....................................... 0.099 0.047Nickel ......................................... 0.042 0.028Ammonia (as N) ......................... 10.260 4.512Cobalt ......................................... 0.011 0.005Total suspended solids .............. 1.155 0.924pH ............................................... 1 1





day

Maximumfor monthly

average


Copper ....................................... 0.043 0.021Nickel ......................................... 0.019 0.013Ammonia (as N) ......................... 4.515 1.985Cobalt ......................................... 0.005 0.002Total suspended solids .............. 0.508 0.406pH ............................................... 1 1




560

40 CFR Ch. I (7–1–98 Edition)§ 421.235



day

Maximumfor monthly

average


Copper ....................................... 16.250 7.744Nickel ......................................... 6.982 4.697Ammonia (as N) ......................... 1,692.000 743.900Cobalt ......................................... 1.777 0.889Total suspended solids .............. 190.400 152.300pH ............................................... 1 1





day

Maximumfor monthly

average


Copper ....................................... 27.390 13.050Nickel ......................................... 11.770 7.917Ammonia (as N) ......................... 2,852.000 1,254.000Cobalt ......................................... 2.996 1.498Total suspended solids .............. 321.000 256.800pH ............................................... 1 1




Except as provided in 40 CFR 403.7,any new source subject to this subpartwhich introduces pollutants into a pub-licly owned treatment works mustcomply with a 40 CFR part 403 andachieve the following pretreatmentstandards for new sources. The mass ofwastewater pollutants in primary nick-el and cobalt process wastewater intro-

duced into a POTW shall not exceedthe following values:

(a) Raw material dust control.

PSNS FOR THE PRIMARY NICKEL AND COBALTSUBCATEGORY


day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) nickel produced

Copper ....................................... 16.250 7.744Nickel ......................................... 6.982 4.697Ammonia (as N) ......................... 1,692.000 743.900Cobalt ......................................... 1.777 0.889



561




day

Maximumfor monthly

average


Copper ....................................... 27.390 13.050Nickel ......................................... 11.770 7.917Ammonia (as N) ......................... 2,852.000 1,254.000Cobalt ......................................... 2.996 1.498


Subpart V—Secondary NickelSubcategory


§ 421.240 Applicability: Description ofthe secondary nickel subcategory.

The provisions of this subpart are ap-plicable to discharges resulting fromthe production of nickel by secondarynickel facilities processing slag, spentacids, or scrap metal raw materials.


general definitions, abbreviations, andmethods of analysis set forth in 40 CFR401 shall apply to this subpart.

§§ 421.242—421.243 [Reserved]



(a) Slag reclaim tailings.

NSPS FOR THE SECONDARY NICKELSUBCATEGORY


day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of slag input toreclaim process

Chromium (total) ........................ 5.653 2.313Copper ....................................... 24.410 12.850Nickel ......................................... 24.670 16.320Total suspended solids .............. 526.800 250.500pH ............................................... (1) (1)


(b) Acid reclaim leaching filtrate.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of acid reclaimnickel produced



(c) Acid reclaim leaching belt filterbackwash.



day

Maximumfor monthly

average





Except as provided in 40 CFR 403.7and 403.13, any existing source subjectto this subpart which introduces pol-lutants into a publicly owned treat-ment works must comply with 40 CFRpart 403 and achieve the followingpretreatment standards for existingsources. The mass of wastewater pol-lutants in secondary nickel processwastewater introduced into a POTWmust not exceed the following values:


PSES FOR THE SECONDARY NICKELSUBCATEGORY


day

Maximumfor monthly

average


Chromium (total) ........................ 5.653 2.313


562

40 CFR Ch. I (7–1–98 Edition)§ 421.246

PSES FOR THE SECONDARY NICKELSUBCATEGORY—Continued


day

Maximumfor monthly

average

Copper ....................................... 24.410 12.850Nickel ......................................... 24.670 16.320




day

Maximumfor monthly

average


Chromium (total) ........................ 2.198 0.899Copper ....................................... 9.491 4.995Nickel ......................................... 9.590 6.344

(c) Acid reclaim leaching belt filterbackwash



day

Maximumfor monthly

average




Except as provided in 40 CFR 403.7,any new source subject to this subpartwhich introduces pollutants into a pub-licly owned treatment works mustcomply with 40 CFR part 403 andachieve the following pretreatmentstandards for new sources. The mass ofwastewater pollutants in secondarynickel process wastewater introducedinto a POTW shall not exceed the fol-lowing values:


PSNS FOR THE SECONDARY NICKELSUBCATEGORY


day

Maximumfor monthly

average






day

Maximumfor monthly

average



(c) Acid reclaim leaching belt filterbackwash.



day

Maximumfor monthly

average




Subpart W—Primary PreciousMetals and Mercury Subcategory


§ 421.250 Applicability: Description ofthe primary precious metals andmercury subcategory.

The provisions of this subpart are ap-plicable to discharges resulting fromthe production of gold, silver, or mer-cury by primary precious metals andmercury facilities.


563






(a) Smelter wet air pollution control.

BPT LIMITATIONS FOR THE PRIMARY PRECIOUSMETALS AND MERCURY SUBCATEGORY


day

Maximumfor monthly

average

mg/troy ounce of goldand silver smelted

Lead ........................................... 0.546 0.260Mercury ...................................... 0.325 0.130Silver .......................................... 0.533 0.221Zinc ............................................ 1.898 0.793Gold ............................................ 0.130 ....................Oil and grease ........................... 26.000 15.600Total suspended solids .............. 53.300 25.350pH ............................................... (1 ) (1 )


(b) Silver chloride reduction spentsolution.



day

Maximumfor monthly

average

mg/troy ounce of silverreduced in solution

Lead ........................................... 0.168 0.080Mercury ...................................... 0.100 0.040Silver .......................................... 0.164 0.068Zinc ............................................ 0.584 0.244Gold ............................................ 0.040 ....................Oil and grease ........................... 8.000 4.800Total suspended solids .............. 16.400 7.800pH ............................................... (1 ) (1 )


(c) Electrolytic cells wet air pollu-tion control.



day

Maximumfor monthly

average

mg/troy ounce of goldrefined electrolytically

Lead ........................................... 83.160 39.600Mercury ...................................... 49.500 19.800Silver .......................................... 81.180 33.660Zinc ............................................ 289.100 120.800Gold ............................................ 19.800 ....................Oil and grease ........................... 3,960.000 2,376.000Total suspended solids .............. 8,118.000 3,861.000pH ............................................... (1 ) (1 )


(d) Electrolyte preparation wet airpollution control.




age

mg/troy ounce of silver inelectrolyte produced

Lead ....................................... 0.021 0.010Mercury .................................. 0.013 0.005Silver ...................................... 0.021 0.009Zinc ........................................ 0.073 0.031Gold ........................................ 0.005 ......................Oil and Grease ....................... 1.000 0.600Total suspended solids .......... 2.050 0.975pH ........................................... (1) (1)


(e) Calciner wet air pollution control.




age

mg/kg (pounds per millionpounds) of mercury con-densed

Lead ....................................... 78.200 37.240Mercury .................................. 46.550 18.620Silver ...................................... 76.340 31.650Zinc ........................................ 271.900 113.600Gold ........................................ 18.600 ......................Oil and Grease ....................... 3,724.000 2,234.000Total suspended solids .......... 7,634.000 3,631.000pH ........................................... (1) (1)


(f) Calcine quench water.


564

40 CFR Ch. I (7–1–98 Edition)§ 421.253




age




(g) Calciner stack gas contact cool-ing water.




age




(h) Condenser blowdown.




age




(i) Mercury cleaning bath water.




age







BAT LIMITATIONS FOR THE PRIMARY PRECIOUSMETALS AND MERCURY SUBCATEGORY



age

mg/troy ounce of gold andsilver smelted

Lead ....................................... 0.364 0.169Mercury .................................. 0.195 0.078Silver ...................................... 0.377 0.156Zinc ........................................ 1.326 0.546Gold ........................................ 0.130 ......................





age


Lead ....................................... 0.112 0.052Mercury .................................. 0.060 0.024Silver ...................................... 0.116 0.048


565


BAT LIMITATIONS FOR THE PRIMARY PRECIOUSMETALS AND MERCURY SUBCATEGORY—Con-tinued



age

Zinc ........................................ 0.408 0.168Gold ........................................ 0.040 ......................





age







age



(e) Calciner Wet Air Pollution Con-trol.




age







age







age







age







age


Lead ....................................... 0.392 0.182Mercury .................................. 0.210 0.084Silver ...................................... 0.406 0.168


566

40 CFR Ch. I (7–1–98 Edition)§ 421.254

BAT LIMITATIONS FOR THE PRIMARY PRECIOUSMETALS AND MERCURY SUBCATEGORY—Con-tinued



age

Zinc ........................................ 1.428 0.588Gold ........................................ 0.140 ......................




NSPS FOR THE PRIMARY PRECIOUS METALSAND MERCURY SUBCATEGORY



age








age








age








age








age






567





age




(g) Calciner stack gas contract cool-ing water.




age

mg/kg (pounds per millionpounds) or mercury con-densed







age








age

mg/kg (pounds per millionpounds) of Mercury con-densed



[50 FR 38361, Sept. 20, 1985; 50 FR 41144, Oct.9, 1985]



Except as provided in 40 CFR 403.7,any new source subject to this subpartwhich introduces pollutants into a pub-licly owned treatment works mustcomply with 40 CFR part 403 andachieve the following pretreatmentstandards for new sources. The mass ofwastewater pollutants in primary pre-cious metals and mercury processwastewater introduced into a POTWshall not exceed the following values:


PSNS FOR THE PRIMARY PRECIOUS METALSAND MERCURY SUBCATEGORY



age





568

40 CFR Ch. I (7–1–98 Edition)§ 421.256




age






day

Maximumfor monthly

average


Lead ........................................... 5.544 2.574Mercury ...................................... 2.970 1.188Silver .......................................... 5.742 2.376Zinc ............................................ 20.200 8.316Gold ............................................ 1.980 ....................




day

Maximumfor monthly

average






day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of mercurycondensed

Lead ........................................... 6.160 2.860Mercury ...................................... 3.300 1.320Silver .......................................... 6.380 2.640Zinc ............................................ 22.440 9.240

PSNS FOR THE PRIMARY PRECIOUS METALSAND MERCURY SUBCATEGORY—Continued


day

Maximumfor monthly

average

Gold ............................................ 2.200 ....................




day

Maximumfor monthly

average






day

Maximumfor monthly

average


Lead ........................................... 1.162 0.540Mercury ...................................... 0.623 0.249Silver .......................................... 1.204 0.498Zinc ............................................ 4.233 1,743Gold ............................................ 0.415 ....................




day

Maximumfor monthly

average





569




day

Maximumfor monthly

average




Subpart X—Secondary PreciousMetals Subcategory


§ 421.260 Applicability: Description ofthe secondary precious metals sub-category.

The provisions of this subpart are ap-plicable to discharges resulting fromthe production of precious metals atsecondary precious metals facilities.



(b) The term precious metals shallmean gold, platinum, palladium, rho-dium, iridium, osmium, and ruthe-nium.

(c) The term Combined Metals, shallmean the total of gold, platinum andpalladium.



Except as provided in 40 CFR 125.30through 125.32, any existing pointsource subject to this subpart shallachieve the following effluent limita-tions representing the degree of efflu-ent reduction attainable by the appli-

cation of the best practicable tech-nology currently available:

(a) Furnace wet air pollution control.

BPT LIMITATIONS FOR THE SECONDARYPRECIOUS METALS SUBCATEGORY


day

Maximumfor monthly

average

mg/troy ounce of preciousmetals, including silver,incinerated or smelted

Copper ....................................... 136.400 71.800Cyanide (total) ............................ 20.820 8.616Zinc ............................................ 104.800 43.800Ammonia (as N) ......................... 9,571.000 4,207.000Combined metals ....................... 21.54 ....................Total suspended solids .............. 2,944.000 1,400.000pH ............................................... (1) (1)


(b) Raw material granulation.



day

Maximumfor monthly

average

mg/troy ounce of preciousmetal in the granulatedraw material

Copper ....................................... 12.050 6.340Cyanide (total) ............................ 1.839 0.761Zinc ............................................ 9.256 3.867Ammonia (as N) ......................... 845.100 371.500Combined metals ....................... 1.902 ....................Total suspended solids .............. 259.900 123.600pH ............................................... (1) (1)


(c) Spent plating solutions.



day

Maximumfor monthly

average

mg/liter of spent platingsolution used as a rawmaterial



(d) Spent cyanide stripping solutions.


570

40 CFR Ch. I (7–1–98 Edition)§ 421.262

2 This allowance applies to either acid oralkaline wet air pollution control scrubbers.If both acid and alkaline wet air pollutioncontrol scrubbers are present in a particularfacility the same allowance applies to each.



day

Maximumfor monthly

average

mg/troy ounce of goldproduced by cyanidestripping



(e) Refinery wet air pollution con-trol.2



day

Maximumfor monthly

average

mg/troy ounce of preciousmetals, including silver,produced in refinery

Copper ....................................... 39.900 21.000Cyanide (total) ............................ 6.090 2.520Zinc ............................................ 30.660 12.810Ammonia (as N) ......................... 2,799.000 1,231.000Combined metals ....................... 6.300 ....................Total suspended solids .............. 861.000 409.500pH ............................................... (1) (1)

1 Within the range of 7.5 to 10.0 at alltimes.

(f) Gold solvent extraction raffinateand wash water.



day

Maximumfor monthly

average

mg/troy ounce of goldproduced by solventextraction

Copper ....................................... 1.197 0.630Cyanide (total) ............................ 0.183 0.076Zinc ............................................ 0.920 0.384Ammonia (as N) ......................... 83.980 36.920Combined metals ....................... 0.189 ....................Total suspended solids .............. 25.830 12.290

BPT LIMITATIONS FOR THE SECONDARYPRECIOUS METALS SUBCATEGORY—Continued


day

Maximumfor monthly

average

pH ............................................... (1) (1)


(g) Gold spent electrolyte.



day

Maximumfor monthly

average

mg/troy ounce of goldproduced by electrolysis



(h) Gold precipitation and filtration.



day

Maximumfor monthly

average

mg/troy ounce of goldprecipitated



(i) Platinum precipitation and filtra-tion.



day

Maximumfor monthly

average

mg/troy ounce of platinumprecipitated

Copper ....................................... 9.880 5.200Cyanide (total) ............................ 1.508 0.624Zinc ............................................ 7.592 3.172Ammonia (as N) ......................... 693.200 304.700Combined metals ....................... 1.560 ....................Total suspended solids .............. 213.200 101.400


571


BPT LIMITATIONS FOR THE SECONDARYPRECIOUS METALS SUBCATEGORY—Continued


day

Maximumfor monthly

average

pH ............................................... (1 ) (1)


(j) Palladium precipitation and fil-tration.



day

Maximumfor monthly

average

mg/troy ounce ofpalladium precipitated

Copper ....................................... 11.400 6.000Cyanide (total) ............................ 1.740 0.720Zinc ............................................ 8.760 3.660Ammonia (as N) ......................... 799.800 351.600Combined metals ....................... 1.800 ....................Total suspended solids .............. 246.000 117.000pH ............................................... (1 ) (1 )


(k) Other platinum group metals pre-cipitation and filtration.



day

Maximumfor monthly

average

mg/troy ounce of otherplatinum group metalsprecipitated



(l) Spent solution from PGC salt pro-duction.



day

Maximumfor monthly

average

mg/troy ounce of goldcontained in PGC product



(m) Equipment and floor wash.


572

40 CFR Ch. I (7–1–98 Edition)§ 421.263



day

Maximumfor monthly

average


Copper ....................................... 0.000 0.000Cyanide (total) ............................ 0.000 0.000Zinc ............................................ 0.000 0.000Ammonia (as N) ......................... 0.000 0.000Combined metals ....................... 0.000 0.000Total suspended solids .............. 0.000 0.000pH ............................................... (1) (1)


(n) Preliminary treatment.



day

Maximumfor monthly

average

mg/troy ounce of totalprecious metals pro-duced through this op-eration

Copper ....................................... 95.000 50.000Cyanide (Total) .......................... 14.500 6.000Zinc ............................................ 73.000 30.500Ammonia (as N) ......................... 6665.000 2930.000Combined Metals ....................... 15.000 ....................Total Suspended Solids ............. 2050.000 975.000pH ............................................... (1) (1)






BAT LIMITATIONS FOR THE SECONDARYPRECIOUS METALS SUBCATEGORY


day

Maximumfor monthly

average


Copper ....................................... 5.760 2.745Cyanide (total) ............................ 0.900 0.360Zinc ............................................ 4.590 1.890Combined metals ....................... 1.350 ....................Ammonia (as N) ......................... 599.900 263.700




day

Maximumfor monthly

average

mg/troy ounce of preciousmetals in the granu-lated raw material

Copper ....................................... 0.819 0.390Cyanide (total) ............................ 0.128 0.051Zinc ............................................ 0.653 0.269Combined metals ....................... 0.192 ....................Palladium ................................... 0.064 ....................Platinum ..................................... 0.064 ....................Ammonia (as N) ......................... 85.310 37.500




day

Maximumfor monthly

average


Copper ....................................... 1.280 0.610Cyanide (total) ............................ 0.200 0.080Zinc ............................................ 1.020 0.420Gold.Combined metals ....................... 0.300 ....................Ammonia (as N) ......................... 133.300 58.600



573





day

Maximumfor monthly

average



(e) Refinery Wet Air Pollution Con-trol 2



day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average


Copper ....................................... 7.680 3.660Cyanide (total) ............................ 1.200 .480Zinc ............................................ 6.120 2.520


574

40 CFR Ch. I (7–1–98 Edition)§ 421.264

BAT LIMITATIONS FOR THE SECONDARYPRECIOUS METALS SUBCATEGORY—Continued


day

Maximumfor monthly

average

Combined metals ....................... 1.800 ....................Ammonia (as N) ......................... 799.800 351.600




day

Maximumfor monthly

average



(l) Spent solutions from PGC saltproduction.



day

Maximumfor monthly

average






day

Maximumfor monthly

average



(n) Preliminary Treatment.



day

Maximumfor monthly

average

Mg/troy ounce of totalprecious metals pro-duced through this op-eration

Copper ....................................... 64.000 30.500Cyanide (Total) .......................... 10.000 4.000Zinc ............................................ 51.000 21.000Combined metals ....................... 15.000 ....................Ammonia (as N) ......................... 6665.000 2930.000

[50 FR 38365, Sept. 20, 1985, as amended at 55FR 31706–31708, Aug. 3, 1990; 55 FR 36932, Sept.7, 1990]




NSPS FOR THE SECONDARY PRECIOUS METALSSUBCATEGORY


day

Maximumfor monthly

average


Copper ....................................... 5.760 2.745Cyanide (total) ............................ 0.900 0.360Zinc ............................................ 4.590 1.890Combined metals ....................... 1.350 ....................Ammonia (as N) ......................... 599.900 263.700Total suspended solids .............. 67.500 54.000pH ............................................... (1 ) (1)





day

Maximumfor monthly

average





575






day

Maximumfor monthly

average







day

Maximumfor monthly

average




(e) Refinery Wet Air Pollution Con-trol 2



day

Maximumfor monthly

average


Copper ....................................... 1.280 0.610Cyanide (total) ............................ 0.200 0.080Zinc ............................................ 1.020 0.420Combined metals ....................... 0.300 ....................Ammonia (as N) ......................... 133.300 58.600Total suspended solids .............. 15.000 12.000

NSPS FOR THE SECONDARY PRECIOUS METALSSUBCATEGORY—Continued


day

Maximumfor monthly

average

pH ............................................... (1 ) (1)





day

Maximumfor monthly

average


Copper ....................................... 0.806 0.384Cyanide (total) ............................ 0.126 0.050Zinc ............................................ 0.643 0.265Combined metals ....................... 0.189 ....................Ammonia (as N) ......................... 83.980 36.920Total suspended solids .............. 9.450 7.560pH ............................................... (1) (1)





day

Maximumfor monthly

average


Copper ....................................... 0.011 0.005Cyanide (total) ............................ 0.002 0.001Combined metals ....................... 0.003 ....................Zinc ............................................ 0.009 0.004Ammonia (as N) ......................... 1.160 0.510Total suspended solids .............. 0.131 0.104pH ............................................... (1) (1)





day

Maximumfor monthly

average


Copper ....................................... 5.632 2.684Cyanide (total) ............................ 0.880 0.352Zinc ............................................ 4.488 1.848Combined metals ....................... 1.320 ....................Ammonia (as N) ......................... 586.500 257.800Total suspended solids .............. 66.00 52.800


576

40 CFR Ch. I (7–1–98 Edition)§ 421.264



day

Maximumfor monthly

average

pH ............................................... (1) (1)





day

Maximumfor monthly

average







day

Maximumfor monthly

average







day

Maximumfor monthly

average


Copper ....................................... 6.656 3.172Cyanide (total) ............................ 1.040 0.416Zinc ............................................ 5.304 2.184Combined metals ....................... 1.560 ....................



day

Maximumfor monthly

average

Ammonia (as N) ......................... 693.200 304.700Total suspended solids .............. 78.000 62.400pH ............................................... (1) (1)





day

Maximumfor monthly

average







day

Maximumfor monthly

average







day

Maximumfor monthly

average


Copper ....................................... 64.000 30.500Cyanide (Total) .......................... 10.000 4.000


577





day

Maximumfor monthly

average

Zinc ............................................ 51.000 21.000Combined metals ....................... 15.000 ....................Ammonia (as N) ......................... 6665.000 2930.000Total Suspended Solids ............. 750.000 600.000pH ............................................... (1) (1)


[50 FR 38365, Sept. 20, 1985, as amended at 55FR 31708–31710, Aug. 3, 1990]


Except as provided in 40 CFR 403.7and 403.13, any existing source subjectto this subpart which introduces pol-lutants into a publicly owned treat-ment works must comply with 40 CFRpart 403 and achieve the followingpretreatment standards for existingsources. The mass of wastewater pol-lutants in secondary precious metalsprocess wastewater introduced into aPOTW must not exceed the followingvalues:


PSES FOR THE SECONDARY PRECIOUS METALSSUBCATEGORY


day

Maximumfor monthly

average






day

Maximumfor monthly

average



PSES FOR THE SECONDARY PRECIOUS METALSSUBCATEGORY—Continued


day

Maximumfor monthly

average

Ammonia (as N) ......................... 85.310 37.500




day

Maximumfor monthly

average



(d) Spent Cyanide stripping solu-tions.



day

Maximumfor monthly

average



(e) Refinery Wet Air Pollution Con-trol.1



day

Maximumfor monthly

average


Copper ....................................... 1.280 0.610Cyanide (total) ............................ 0.200 0.080Zinc ............................................ 1.020 0.420


578

40 CFR Ch. I (7–1–98 Edition)§ 421.265



day

Maximumfor monthly

average





day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average


Copper ....................................... 1.152 0.549Cyanide (total) ............................ 0.180 0.072Zinc ............................................ 0.918 0.378


579




day

Maximumfor monthly

average





day

Maximumfor monthly

average






day

Maximumfor monthly

average

Mg/troy ounce of totalprecious metals pro-duced through this op-eration

Copper ....................................... 64.000 30.500Cyanide (Total) .......................... 10.000 4.000Zinc ............................................ 51.000 21.000Combined Metals ....................... 15.000 ....................Ammonia (as N) ......................... 6665.000 2930.000



Except as provided in 40 CFR 403.7,any new source subject to this subpartwhich introduces pollutants into a pub-licly owned treatment works mustcomply with 40 CFR part 403 andachieve the following pretreatmentstandards for new sources. The mass ofwastewater pollutants in secondaryprecious metals process wastewater in-troduced into a POTW shall not exceedthe following values:


PSNS FOR THE SECONDARY PRECIOUS METALSSUBCATEGORY


day

Maximumfor monthly

average






day

Maximumfor monthly

average

mg/troy ounce of preciousmetals, in the granu-lated raw material

Copper ....................................... 0.819 0.390Cyanide (total) ............................ 0.128 0.051Zinc ............................................ 0.653 0.269Combined metals ....................... 0.192 ....................Ammonia .................................... 85.310 37.500




day

Maximumfor monthly

average

mg/liter of spent platingsolution used as a rawmaterail





day

Maximumfor monthly

average




580

40 CFR Ch. I (7–1–98 Edition)§ 421.266


PSNS FOR THE SECONDARY PRECIOUS METALSSUBCATEGORY—Continued


day

Maximumfor monthly

average

Ammonia (as N) ......................... 493.200 216.800

(e) Refinery Wet Air Pollution Con-trol.1



day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average



PSNS FOR THE SECONDARY PRECIOUS METALSSUBCATEGORY—Continued


day

Maximumfor monthly

average

Ammonia (as N) ......................... 1.160 0.510




day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average




581





day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

averge



[50 FR 38365, Sept. 20, 1985, as amended at 55FR 31711–31713, Aug. 3, 1990]


Subpart Y—Primary Rare EarthMetals Subcategory


§ 421.270 Applicability: Description ofthe primary rare earth metals sub-category.

The provisions of this subpart are ap-plicable to discharges resulting fromthe production of rare earth metals andmischmetal by primary rare earth met-als facilities processing rare earthmetal oxides, chlorides, and fluorides.

§ 421.271 Specialized definitions.In addition to what is provided

below:(a) The general definitions, abbrevia-

tions, and methods of analysis set forthin 40 CFR part 401 shall apply to thissubpart.

(b) The term rare earth metals refersto the elements scandium, yttrium,and lanthanum to lutetium, inclusive.

(c) The term mischmetal refers to arare earth metal alloy comprised of thenatural mixture of rare earths to about94–99 percent. The balance of tha alloyincludes traces of other elements andone to two percent iron.


582

40 CFR Ch. I (7–1–98 Edition)§§ 421.272—421.273

§§ 421.272—421.273 [Reserved]



(a) Dryer Vent Water Quench andScrubber.

NSPS FOR THE PRIMARY RARE EARTH METALSSUBCATEGORY


day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of mischmetalproduced from wet rareearth chlorides

Hexachlorobenzene ................... 0.042 0.042Chromium (total) ........................ 1.544 0.626Lead ........................................... 1.168 0.542Nickel ......................................... 2.295 1.544Total suspended solids .............. 62.600 50.080pH ............................................... (1) (1)


(b) Dryer vent caustic wet air pollu-tion control.




age


Hexachlorobenzene ............... 0.007 0.007Chromium (total) .................... 0.272 0.110Lead ....................................... 0.206 0.095Nickel ..................................... 0.404 0.272Total suspended solids .......... 11.010 8.808pH ........................................... (1) (1)


(c) Electrolytic cell water quenchand scrubber.




age

mg/kg (pounds per millionpounds) of totalmischmetal produced



(d) Electrolytic cell caustic wet airpollution control.




age




(e) Sodium hypochlorite filter back-wash.



day

Maximumfor monthly

average


Hexachlorobenzene ................... 0.004 0.004Chromium (total) ........................ 0.134 0.054Lead ........................................... 0.101 0.047Nickel ......................................... 0.199 0.134Total suspended solids .............. 5.430 4.334pH ............................................... (1) (1)



583



Except as provided in 40 CFR 403.7and 403.13, any existing source subjectto this subpart which introduces pol-lutants into a publicly owned treat-ment works must comply with 40 CFRpart 403 and achieve the followingpretreatment standards for existingsources. The mass of wastewater pol-lutants in primary rare earth metalsprocess wastewater introduced into aPOTW must not exceed the followingvalues:

(a) Dryer vent water quench scrub-ber.

PSES FOR THE PRIMARY RARE EARTH METALSSUBCATEGORY


day

Maximumfor monthly

average


Hexachlorobenzene ................... 0.042 0.042Chromium (total) ........................ 1.544 0.626Lead ........................................... 1.168 0.542Nickel ......................................... 2.295 1.544

(b) Dryer Vent Caustic Wet Air Pol-lution Control.



day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average




Except as provided in 40 CFR 403.7,any new source subject to this subpartwhich introduces pollutants into a pub-licly owned treatment works mustcomply with 40 CFR part 403 andachieve the following pretreatmentstandards for new sources. The mass ofwastewater pollutants in primary rareearth metals process wastewater intro-duced into a POTW shall not exceedthe following values:


584

40 CFR Ch. I (7–1–98 Edition)§ 421.277

(a) Dryer vent water quench andscrubber.

PSNS FOR THE PRIMARY RARE EARTH METALSSUBCATEGORY


day

Maximumfor monthly

average



(b) Dryer vent caustic wet air pollu-tion control.



day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average




Subpart Z—Secondary TantalumSubcategory


§ 421.280 Applicability: Description ofthe secondary tantalum sub-category.

The provisions of this subpart are ap-plicable to discharges resulting fromthe production of tantalum at second-ary tantalum facilities.




Except as provided in 40 CFR 125.30through 125.32, any existing point


585


source subject to this subpart shallachieve the following effluent limita-tions representing the degree of efflu-ent reduction attainable by the appli-cation of the best practicable tech-nology currently available:

(a) Tantalum alloy leach and rinse.

BPT LIMITATIONS FOR THE SECONDARYTANTALUM SUBCATEGORY



age

mg/kg (pounds per millionpounds) of tantalum pow-der produced

Copper ................................... 438.100 230.600Lead ....................................... 96.850 46.120Nickel ..................................... 442.800 292.900Zinc ........................................ 336.700 140.700Tantalum ................................ 103.800 ......................Total suspended solids .......... 9,455.000 4,497.000pH ........................................... (1 ) (1 )


(b) Capacitor leach and rinse.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of tantalumpowder produced fromleaching

Copper ....................................... 38.380 20.200Lead ........................................... 8.484 4.040Nickel ......................................... 38.780 25.650Zinc ............................................ 29.490 12.320Tantalum .................................... 9.090 ....................Total suspended solids .............. 828.200 393.900pH ............................................... (1) (1)


(c) Tantalum sludge leach and rinse.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of equivalentpure tantalum powderproduced

Copper ....................................... 390.100 205.300Lead ........................................... 86.230 41.060Nickel ......................................... 394.200 260.700Zinc ............................................ 299.700 125.200Tantalum .................................... 92.390 ....................Total suspended solids .............. 8,417.000 4,003.000

BPT LIMITATIONS FOR THE SECONDARYTANTALUM SUBCATEGORY—Continued


day

Maximumfor monthly

average

pH ............................................... (1) (1)


(d) Tantalum powder acid wash andrinse.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of tantalumpowder produced



(e) Leaching wet air pollution con-trol.



day

Maximumfor monthly

average







586

40 CFR Ch. I (7–1–98 Edition)§ 421.284



BAT LIMITATIONS FOR THE SECONDARYTANTALUM SUBCATEGORY


day

Maximumfor monthly

average


Copper ....................................... 295.200 140.700Lead ........................................... 64.570 29.980Nickel ......................................... 126.800 85.320Zinc ............................................ 235.200 96.850Tantalum .................................... 103.800 ....................




day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






NSPS FOR THE SECONDARY TANTALUMSUBCATEGORY


day

Maximumfor monthly

average


Copper ....................................... 295.200 140.700Lead ........................................... 64.570 29.980Nickel ......................................... 126.800 85.320Zinc ............................................ 235.200 96.850Tantalum .................................... 103.800 ....................Total suspended solids .............. 3,459.000 2,767.000pH ............................................... (1 ) (1 )




587




day

Maximumfor monthly

average







day

Maximumfor monthly

average


Copper ....................................... 262.800 125.200Lead ........................................... 57.480 26.690Nickel ......................................... 112.900 75.960Zinc ............................................ 209.400 86.230Tantalum .................................... 92.390 ....................Total suspended solids .............. 3,080.000 2,464.000pH ............................................... (1) (1)





day

Maximumfor monthly

average







day

Maximumfor monthly

average






Except as provided in 40 CFR 403.7,any new source subject to this subpartwhich introduces pollutants into a pub-licly owned treatment works mustcomply with 40 CFR part 403 andachieve the following pretreatmentstandards for new sources. The mass ofwastewater pollutants in secondarytantalum process wastewater intro-duced into a POTW shall not exceedthe following values:


PSNS FOR THE SECONDARY TANTALUMSUBCATEGORY


day

Maximumfor monthly

average





588

40 CFR Ch. I (7–1–98 Edition)§ 421.287



day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average




Subpart AA—Secondary TinSubcategory


§ 421.290 Applicability: Description ofthe secondary tin subcategory.

The provisions of this subpart are ap-plicable to discharges resulting fromthe production of tin at secondary tinfacilities utilizing either pyrometal-lurgical or hydrometallurgical proc-esses to recover tin from secondarymaterials.





(a) Tin smelter SO2 scrubber.


589


BPT LIMITATIONS FOR THE SECONDARY TINSUBCATEGORY


day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of crudetapped tin metal pro-duced

Arsenic ....................................... 19.220 8.554Lead ........................................... 3.863 1.840Iron ............................................. 11.040 5.611Tin .............................................. 3.495 2.024Total suspended solids .............. 377.100 179.400pH ............................................... (1) (1)


(b) Dealuminizing rinse.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) ofdealuminized scrapproduced

Lead ........................................... 0.015 0.007Cyanide (total) ............................ 0.010 0.004Fluoride ...................................... 1.225 0.700Tin .............................................. 0.013 0.008Total suspended solids .............. 1.435 0.683pH ............................................... (1) (1)


(c) Tin mud acid neutralization fil-trate.


Pollutant or pollutant property Minimum forany 1 day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of neutralized,dewatered tin mud pro-duced



(d) Tin hydroxide wash.



Maximumfor monthly

average

mg/kg (pounds per millionpounds) of tin hydrox-ide washed



(e) Spent electrowinning solutionfrom new scrap.



Maximumfor monthly

average

mg/kg (pounds per millionpounds) of cathode tinproduced



(f) Spent electrowinning solutionfrom municipal solid waste.



Maximumfor monthly

average

mg/kg (pounds per millionpounds) of MSW scrapused as raw material



(g) Tin hydroxide supernatant fromscrap.


590

40 CFR Ch. I (7–1–98 Edition)§ 421.293



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of tin metal re-covered from scrap

Lead ........................................... 23.370 11.130Cyanide (total) ............................ 16.140 6.677Fluoride ...................................... 1,947.000 1,107.000Tin .............................................. 21.140 12.240Total suspended solids .............. 2,281.000 1,085.000pH ............................................... (1 ) (1 )


(h) Tin hydroxide supernatant fromplating solutions and sludges.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of tin metal re-covered from platingsolutions and sludges

Lead ........................................... 48.30 23.00Cyanide (total) ............................ 33.35 13.80Fluoride ...................................... 4,025.00 2,289.00Tin .............................................. 43.70 25.30Total suspended solids .............. 4,715.00 2,243.00pH ............................................... (1 ) (1 )


(i) Tin hydroxide filtrate.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of tin metalproduced

Lead ........................................... 10.520 5.009Cyanide (total) ............................ 7.263 3.005Fluoride ...................................... 876.500 498.400Tin .............................................. 9.517 5.510Total suspended solids .............. 1,027.000 488.400pH ............................................... (1 ) (1 )





BAT LIMITATIONS FOR THE SECONDARY TINSUBCATEGORY


day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of crudetapped tin produced

Arsenic ....................................... 12.790 5.703Lead ........................................... 2.575 1.196Iron ............................................. 11.040 5.611Tin .............................................. 3.495 2.024




day

Maximumfor monthly

average


Lead ........................................... 0.010 0.005Cyanide (total) ............................ 0.007 0.003Fluoride ...................................... 1.225 0.697Tin .............................................. 0.013 0.008




day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of neutralizeddewatered tin mud pro-duced

Lead ........................................... 1.413 0.656


591


BAT LIMITATIONS FOR THE SECONDARY TINSUBCATEGORY—Continued


day

Maximumfor monthly

average

Cyanide (total) ............................ 1.009 0.404Fluoride ...................................... 176.600 100.400Tin .............................................. 1.918 1.110




day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average


Lead ........................................... 15.580 7.233Cyanide (total) ............................ 11.130 4.451Fluoride ...................................... 1,947.000 1,107.000Tin .............................................. 21.140 21.240




day

Maximumfor monthly

average






day

Maximumfor monthly

average







592

40 CFR Ch. I (7–1–98 Edition)§ 421.294

NSPS FOR THE SECONDARY TIN SUBCATEGORY


day

Maximumfor monthly

average


Arsenic ....................................... 12.790 5.703Lead ........................................... 2.575 1.196Iron ............................................. 11.040 5.611Tin .............................................. 3.495 2.024Total suspended solids .............. 138.000 110.400pH ............................................... (1) (1)





day

Maximumfor monthly

average







day

Maximumfor monthly

average







day

Maximumfor monthly

average







day

Maximumfor monthly

average







day

Maximumfor monthly

average






593




day

Maximumfor monthly

average


Lead ........................................... 15.580 7.233Cyanide (total) ............................ 11.130 4.451Fluoride ...................................... 1,947.000 1,107.000Tin .............................................. 21.140 12.240Total suspended solids .............. 834.600 667.700pH ............................................... (1) (1)





day

Maximumfor monthly

average


Lead ........................................... 32.20 14.95Cyanide (total) ............................ 23.00 9.20Fluoride ...................................... 4,025.00 2,289.00Tin .............................................. 43.70 25.30Total suspended solids .............. 1,725.00 1,380.00pH ............................................... (1) (1)





day

Maximumfor monthly

average





Except as provided in 40 CFR 403.7and 403.13, any existing source subjectto this subpart which introduces pol-lutants into a publicly owned treat-ment works must comply with 40 CFRpart 403 and achieve the followingpretreatment standards for existingsources. The mass of wastewater pol-

lutants in secondary tin process waste-water introduced into a POTW mustnot exceed the following values:


PSES FOR THE SECONDARY TIN SUBCATEGORY


day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average


Lead ........................................... 3.347 1.554Cyanide (total) ............................ 2.391 0.956Fluoride ...................................... 418.400 237.900


594

40 CFR Ch. I (7–1–98 Edition)§ 421.296

PSES FOR THE SECONDARY TINSUBCATEGORY—Continued


day

Maximumfor monthly

average

Tin .............................................. 4.542 2.630




day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average




Except as provided in 40 CFR 403.7,any new source subject to this subpartwhich introduces pollutants into a pub-licly owned treatment works mustcomply with 40 CFR part 403 andachieve the following pretreatmentstandards for new sources. The mass ofwastewater pollutants in secondary tinprocess wastewater introduced into aPOTW shall not exceed the followingvalues:


PSNS FOR THE SECONDARY TIN SUBCATEGORY


day

Maximumfor monthly

average



(b) Dealuminizing Rinse.


595




day

Maximumfor monthly

average






day

Maximumfor monthly

average

mg/kg (pounds per millionof pounds) of neutral-ized dewatered tin mudproduced





day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average



(h) Tin hydroxide supernatant fromplating solutions and ludges.



day

Maximumfor monthly

average






day

Maximumfor monthly

average




596

40 CFR Ch. I (7–1–98 Edition)§ 421.297


Subpart AB—Primary andSecondary Titanium Subcategory


§ 421.300 Applicability: Description ofthe primary and secondary tita-nium subcategory.

The provisions of this subpart are ap-plicable to discharges resulting fromthe production of titanium at primaryand secondary titanium facilities. Fa-cilities which only practice vacuumdistillation for sponge purification andwhich do not practice electrolytic re-covery of magnesium are exempt fromregulations. All other primary and sec-ondary titanium facilities are coveredby these regulations.





(a) Chlorination off-gas wet air pollu-tion control.

BPT LIMITATIONS FOR THE PRIMARY ANDSECONDARY TITANIUM SUBCATEGORY


day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of TiCl4 pro-duced

Chromium (total) ........................ 0.412 0.168Lead ........................................... 0.393 0.187Nickel ......................................... 1.797 1.189Titanium ..................................... 0.880 0.384Oil and grease ........................... 18.720 11.230Total suspended solids .............. 38.380 18.250

BPT LIMITATIONS FOR THE PRIMARY AND SEC-ONDARY TITANIUM SUBCATEGORY—Continued


day

Maximumfor monthly

average

pH ............................................... (1 ) (1 )

AA1Within the range of 7.5 to 10.0 at all times.

(b) Chlorination area-vent wet airpollution control.



day

Maximumfor monthly

average


Chromium (total) ........................ 0.412 0.168Chromium (total) ........................ 0.458 0.187Lead ........................................... 0.437 0.208Nickel ......................................... 1.997 1.321Titanium ..................................... 0.978 0.426Oil and grease ........................... 20.800 12.480Total suspended solids .............. 42.640 20.280pH ............................................... (1 ) (1 )


(c) TiCl4 handling wet air pollutioncontrol.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of TiCl4 handled

Chromium (total) ........................ 0.082 0.034Lead ........................................... 0.079 0.037Nickel ......................................... 0.359 0.237Titanium ..................................... 0.176 0.077Oil and grease ........................... 3.740 2.244Total suspended solids .............. 7.667 3.647pH ............................................... (1 ) (1 )


(d) Reduction area wet air pollutioncontrol.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of titanium pro-duced

Chromium (total) ........................ 18.170 7.435Lead ........................................... 17.350 8.261


597


BPT LIMITATIONS FOR THE PRIMARY AND SEC-ONDARY TITANIUM SUBCATEGORY—Continued


day

Maximumfor monthly

average

Nickel ......................................... 79.300 52.450Titanium ..................................... 38.820 16.930Oil and grease ........................... 826.100 495.600Total suspended solids .............. 1,693.000 805.400pH ............................................... (1 ) (1 )


(e) Melt cell wet air pollution con-trol.



day

Maximumfor monthly

average


Chromium (total) ........................ 9.352 3.826Lead ........................................... 8.927 4.251Nickel ......................................... 40.810 26.990Titanium ..................................... 19.980 8.714Oil and grease ........................... 425.100 255.000Total suspended solids .............. 871.400 414.500pH ............................................... (1) (1)


(f) Chlorine liquefaction wet air pol-lution control.



day

Maximumfor monthly

average


Chromium (total) ........................ 130.900 53.560Lead ........................................... 125.000 59.510Nickel ......................................... 571.300 377.900Titanium ..................................... 279.700 122.000Oil and grease ........................... 5,951.000 3,571.000Total suspended solids .............. 12,200.000 5,702.000pH ............................................... (1) (1)


(g) Sodium reduction container re-conditioning wash water.



day

Maximumfor monthly

average




(h) Chip crushing wet air pollutioncontrol.



day

Maximumfor monthly

average




(i) Acid leachate and rinse water.



day

Maximumfor monthly

average





598

40 CFR Ch. I (7–1–98 Edition)§ 421.303

(j) Sponge crushing and screeningwet air pollution control.



day

Maximumfor monthly

average




(k) Acid pickle and wash water.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of titaniumpickled



(l) Scrap milling wet air pollutioncontrol.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of scrap milled



(m) Scrap detergent wash water.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of scrap washed



(n) Casting crucible wash water.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of titanium cast



(o) Casting contact cooling water.



day

Maximumfor monthly

average


Chromium (total) ........................ 321.100 131.400Lead ........................................... 306.500 145.900Nickel ......................................... 1,401.000 926.800Titanium ..................................... 685.900 299.200Oil and grease ........................... 14,590.000 8,757.000Total suspended solids .............. 29,920.000 14,230.000pH ............................................... (1) (1)





599




BAT LIMITATIONS FOR THE PRIMARY ANDSECONDARY TITANIUM SUBCATEGORY


day

Maximumfor monthly

average


Chromium (total) ........................ 0.346 0.140Lead ........................................... 0.262 0.122Nickel ......................................... 0.515 0.346Titanium ..................................... 0.496 0.215




day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average


Chromium (total) ........................ 0.474 0.192Lead ........................................... 0.359 0.167Nickel ......................................... 0.705 0.474


600

40 CFR Ch. I (7–1–98 Edition)§ 421.303

BAT LIMITATIONS FOR THE PRIMARY AND SEC-ONDARY TITANIUM SUBCATEGORY—Continued


day

Maximumfor monthly

average

Titanium ..................................... 0.679 0.295




day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average





601





age


Chromium (total) .................... 27.000 10.950Lead ....................................... 20.430 9.486Nickel ..................................... 40.140 27.000Titanium ................................. 38.68 16.78




NSPS LIMITATIONS FOR THE PRIMARY ANDSECONDARY TITANIUM SUBCATEGORY


day

Maximumfor monthly

average


Chromium (total) ........................ 0.346 0.140Lead ........................................... 0.262 0.122Nickel ......................................... 0.515 0.346Titanium ..................................... 0.496 0.215Oil and grease ........................... 9.360 9.360Total suspended solids .............. 14.040 11.230pH ............................................... (1 ) (1)





day

Maximumfor monthly

average







day

Maximumfor monthly

average







day

Maximumfor monthly

average





NSPS FOR THE PRIMARY AND SECONDARYTITANIUM SUBCATEGORY


day

Maximumfor monthly

average






602

40 CFR Ch. I (7–1–98 Edition)§ 421.304



day

Maximumfor monthly

average

mg/kg (pound per millionpounds) of titanium pro-duced



(g) Sodium reduction container re-conditioning wash.



day

Maximumfor monthly

average







day

Maximumfor monthly

average







day

Maximumfor monthly

average







day

Maximumfor monthly

average







day

Maximumfor monthly

average






603




day

Maximumfor monthly

average







day

Maximumfor monthly

average







day

Maximumfor monthly

average







day

Maximumfor monthly

average


Chromium (total) ........................ 27.000 10.950Lead ........................................... 20.430 9.486Nickel ......................................... 40.140 27.000Titanium ..................................... 38.680 16.780Oil and grease ........................... 729.700 729.700Total suspended solids .............. 1,095.000 875.700pH ............................................... (1 ) (1 )



Except as provided in 40 CFR 403.7and 403.13, any existing source subjectto this subpart which introduces pol-lutants into a publicly owned treat-ment works must comply with 40 CFRpart 403 and achieve the followingpretreatment standards for existingsources. The mass of wastewater pol-lutants in primary and secondary tita-nium process wastewater introducedinto a POTW must not exceed the fol-lowing values:


PSES FOR THE PRIMARY AND SECONDARYTITANIUM SUBCATEGORY


day

Maximumfor monthly

average



(b) Chlorination Area-vent wet airpollution control.


604

40 CFR Ch. I (7–1–98 Edition)§ 421.305



day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average



PSES FOR THE PRIMARY AND SECONDARYTITANIUM SUBCATEGORY—Continued


day

Maximumfor monthly

average

Titanium ..................................... 1.127 0.489




day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average





605




day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average




Except as provided in 40 CFR 403.7,any new source subject to this subpartwhich introduces pollutants into a pub-licly owned treatment works mustcomply with 40 CFR part 403 andachieve the following pretreatmentstandards for new sources. The mass ofwastewater pollutants in primary andsecondary titanium process wastewaterintroduced into a POTW shall not ex-ceed the following values:



606

40 CFR Ch. I (7–1–98 Edition)§ 421.306

PSNS FOR THE PRIMARY AND SECONDARYTITANIUM SUBCATEGORY


day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average



PSNS FOR THE PRIMARY AND SECONDARYTITANIUM SUBCATEGORY—Continued


day

Maximumfor monthly

average

Titanium ..................................... 2.189 0.950




day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average





607




day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average




608

40 CFR Ch. I (7–1–98 Edition)§ 421.307


Subpart AC—Secondary Tungstenand Cobalt Subcategory


§ 421.310 Applicability: Description ofthe secondary tungsten and cobaltsubcategory.

The provisions of this subpart are ap-plicable to discharges resulting fromthe production of tungsten or cobalt atsecondary tungsten and cobalt facili-ties processing tungsten or tungstencarbide scrap raw materials.





(a) Tungsten detergent wash andrinse.

BPT LIMITATIONS FOR THE SECONDARYTUNGSTEN AND COBALT SUBCATEGORY


day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of tungstenscrap washed

Copper ....................................... 0.371 0.195Nickel ......................................... 0.374 0.248Ammonia (as N) ......................... 25.990 11.430Cobalt ......................................... 0.768 0.337Tungsten .................................... 1.357 0.542Oil and grease ........................... 3.900 2.340Total suspended solids .............. 7.995 3.803pH ............................................... (1) (1)


(b) Tungsten leaching acid.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of tungstenproduced



(c) Tungsten post-leaching wash andrinse.



day

Maximumfor monthly

average




(d) Synthetic scheelite filtrate.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of syntheticscheelite produced

Copper ....................................... 31.660 16.660Nickel ......................................... 31.990 21.160Ammonia (as N) ......................... 2,221.000 976.300Cobalt ......................................... 65.644 28.824Tungsten .................................... 116.000 46.320Oil and grease ........................... 333.200 200.000Total suspended solids .............. 683.100 324.900pH ............................................... (1 ) (1)


(e) Tungsten carbide leaching wet airpollution control.


609




day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of tungstencarbide scrap leached

Copper ....................................... 3.327 1.751Nickel ......................................... 3.362 2.224Ammonia (as N) ......................... 233.400 102.600Cobalt ......................................... 6.899 3.029Tungsten .................................... 12.190 4.868Oil and grease ........................... 35.020 21.010Total suspended solids .............. 71.790 34.150pH ............................................... (1 ) (1)


(f) Tungsten carbide wash water.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of tungstencarbide produced

Copper ....................................... 15.830 8.333Nickel ......................................... 16.000 10.580Ammonia (as N) ......................... 1,111.000 488.300Cobalt ......................................... 32.832 14.416Tungsten .................................... 58.000 23.170Oil and grease ........................... 166.700 100.000Total suspended solids .............. 341.700 162.500pH ............................................... (1 ) (1)


(g) Cobalt sludge leaching wet airpollution control.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of cobalt pro-duced from cobaltsludge

Copper ....................................... 67.990 35.780Nickel ......................................... 68.700 45.440Ammonia (as N) ......................... 4,770.000 2,097.000Cobalt ......................................... 140.977 61.901Tungsten .................................... 249.000 99.470Oil and grease ........................... 715.600 429.400Total suspended solids .............. 1,467.000 697.700pH ............................................... (1 ) (1)


(h) Crystallization decant.



day

Maximumfor monthly

average


Copper ....................................... 79.140 41.650Nickel ......................................... 79.970 52.900Ammonia (as N) ......................... 5,552.000 2,441.000Cobalt ......................................... 164.101 72.055Tungsten .................................... 289.900 115.800Oil and grease ........................... 833.000 499.800Total suspended solids .............. 1,708.000 812.200pH ............................................... (1 ) (1)


(i) Acid wash decant.



day

Maximumfor monthly

average


Copper ....................................... 36.220 19.060Nickel ......................................... 36.600 24.210Ammonia (as N) ......................... 2,541.000 1,117.000Cobalt ......................................... 75.104 32.977Tungsten .................................... 132.700 52.990Oil and grease ........................... 381.300 228.800Total suspended solids .............. 781.600 371.700pH ............................................... (1 ) (1)


(j) Cobalt hydroxide filtrate.



day

Maximumfor monthly

average


Copper ....................................... 107.600 56.650Nickel ......................................... 108.800 71.940Ammonia (as N) ......................... 7,551.000 3,320.000Cobalt ......................................... 223.189 97.999Tungsten .................................... 394.300 157.500Oil and grease ........................... 1,133.000 679.800Total suspended solids .............. 2,323.000 1,105.000pH ............................................... (1 ) (1)


(k) Cobalt hydroxide filter cakewash.


610

40 CFR Ch. I (7–1–98 Edition)§ 421.313



day

Maximumfor monthly

average


Copper ....................................... 207.200 109.100Nickel ......................................... 209.400 138.500Ammonia (as N) ......................... 14,530.000 6,389.000Cobalt ......................................... 429.598 188.631Tungsten .................................... 758.900 303.100Oil and grease ........................... 2,181.000 1,309.000Total suspended solids .............. 4,471.000 2,126.000pH ............................................... (1 ) (1)






BAT LIMITATIONS FOR THE SECONDARYTUNGSTEN AND COBALT SUBCATEGORY


day

Maximumfor monthly

average


Copper ....................................... 0.250 0.119Nickel ......................................... 0.107 0.072Ammonia (as N) ......................... 25.990 11.430Cobalt ......................................... 0.538 0.236Tungsten .................................... 0.679 0.302




day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average


Copper ....................................... 21.330 10.170Nickel ......................................... 9.164 6.165Ammonia (as N) ......................... 2,221.000 976.300Cobalt ......................................... 45.984 20.160Tungsten .................................... 57.980 25.820




day

Maximumfor monthly

average


Copper ....................................... 2.241 1.068Nickel ......................................... 0.963 0.648


611


BAT LIMITATIONS FOR THE SECONDARY TUNG-STEN AND COBALT SUBCATEGORY—Continued


day

Maximumfor monthly

average

Ammonia (as N) ......................... 233.400 102.600Cobalt ......................................... 4.833 2.119Tungsten .................................... 6.093 2.714




day

Maximumfor monthly

average






day

Maximumfor monthly

average


Copper ....................................... 45.80 21.83Nickel ......................................... 19.68 13.24Ammonia (as N) ......................... 4,770.00 2,097.00Cobalt ......................................... 98.756 43.295Tungsten .................................... 124.50 55.46




day

Maximumfor monthly

average


Copper ....................................... 53,310 25.410Nickel ......................................... 22.910 15.410Ammonia (as N) ......................... 5,552.000 2,441.000Cobalt ......................................... 114.954 50.397Tungsten .................................... 144.900 64.560




day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average








612

40 CFR Ch. I (7–1–98 Edition)§ 421.314

NSPS FOR THE SECONDARY TUNGSTEN ANDCOBALT SUBCATEGORY


day

Maximumfor monthly

average


Copper ....................................... 0.250 0.119Nickel ......................................... 0.107 0.072Ammonia (as N) ......................... 25.990 11.430Cobalt ......................................... 0.538 0.236Tungsten .................................... 0.679 0.302Oil and grease ........................... 1.950 1.950Total suspended solids .............. 2.925 2.340pH ............................................... (1 ) (1 )





day

Maximumfor monthly

average


Copper ....................................... 3.291 1.569Nickel ......................................... 1.414 0.951Ammonia (as N) ......................... 342.700 150.700Cobalt ......................................... 7.096 3.111Tungsten .................................... 8.947 3.985Oil and grease ........................... 25.710 25.710Total suspended solids .............. 38.570 30.850pH ............................................... (1 ) (1 )





day

Maximumfor monthly

average


Copper ....................................... 6.583 3.137Nickel ......................................... 2.829 1.903Ammonia (as N) ......................... 685.600 301.400Tungsten .................................... 17.900 7.972Cobalt ......................................... 14.194 6.223Oil and grease ........................... 51.430 51.430Total suspended solids .............. 77.150 61.720pH ............................................... (1) (1)





day

Maximumfor monthly

average


Copper ....................................... 21.330 10.170Nickel ......................................... 9.164 6.165Ammonia (as N) ......................... 2,221.000 976.300Cobalt ......................................... 45.984 20.160Tungsten .................................... 57.980 25.820Oil and grease ........................... 166.600 166.600Total suspended solids .............. 249.900 199.900pH ............................................... (1) (1)





day

Maximumfor monthly

average







day

Maximumfor monthly

average


Copper ....................................... 10.670 5.083Nickel ......................................... 4.583 3.083Ammonia (as N) ......................... 1,111.000 488.300Cobalt ......................................... 22.999 10.083Tungsten .................................... 29.000 12.920Oil and grease ........................... 83.330 83.330Total suspended solids .............. 125.000 100.000pH ............................................... (1) (1)




613




day

Maximumfor monthly

average


Copper ....................................... 45.80 21.83Nickel ......................................... 19.68 13.24Ammonia (as N) ......................... 4,770.00 2,097.00Cobalt ......................................... 98.756 43.295Tungsten .................................... 124.50 55.46Oil and grease ........................... 357.80 357.80Total suspended solids .............. 536.70 429.40pH ............................................... (1) (1)





day

Maximumfor monthly

average







day

Maximumfor monthly

average







day

Maximumfor monthly

average







day

Maximumfor monthly

average


Copper ....................................... 139.600 66.510Nickel ......................................... 59.970 40.340Ammonia (as N) ......................... 14,530.000 6,389.000Cobalt ......................................... 300.094 131.932Tungsten .................................... 379.400 169.000Oil and grease ........................... 1,090.000 1,090.000Total suspended solids .............. 1,636,000 1,308.000pH ............................................... (1) (1)




Except as provided in 40 CFR 403.7,any existing source subject to this sub-part which introduces polutants into apublicly owned treatment works mustcomply with 40 CFR part 403 andachieve the following pretreatmentstandards for existing sources. Themass of wastewater pollutants in sec-ondary tungsten and cobalt processwastewater introduced into a POTWshall not exceed the following values:



614

40 CFR Ch. I (7–1–98 Edition)§ 421.315

PSES FOR THE SECONDARY TUNGSTEN ANDCOBALT SUBCATEGORY


day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average


Copper ....................................... 21.330 10.170Nickel ......................................... 9.164 6.165Ammonia (as N) ......................... 2,221.000 976.300

PSES FOR THE SECONDARY TUNGSTEN ANDCOBALT SUBCATEGORY—Continued


day

Maximumfor monthly

average

Cobalt ......................................... 45.984 20.160Tungsten .................................... 57.980 25.820




day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of tungstencarbide scrap





day

Maximumfor monthly

average






day

Maximumfor monthly

average





615





age

mg/kg (pounds per millionpounds) of cobalt produced

Copper ................................... 53.310 25.410Nickel ..................................... 22.910 15.410Ammonia (as N) ..................... 5,552.000 2,441.000Cobalt ..................................... 114.954 50.397Tungsten ................................ 144.9 64.56





age







age






day

Maximumfor monthly

average


Copper ....................................... 139.600 66.510Nickel ......................................... 59.970 40.340

PSES FOR THE SECONDARY TUNGSTEN ANDCOBALT SUBCATEGORY—Continued


day

Maximumfor monthly

average

Ammonia (as N) ......................... 14,530.000 6,389.000Cobalt ......................................... 300.094 131.932Tungsten .................................... 379.400 169.000



Except as provided in 40 CFR 403.7,any new source subject to this subpartwhich introduces pollutants into a pub-licly owned treatment works mustcomply with 40 CFR part 403 andachieve the following pretreatmentstandards for new sources. The mass ofwastewater pollutants in secondarytungsten and cobalt process waste-water introduced into a POTW shallnot exceed the following values:


PSNS FOR THE SECONDARY TUNGSTEN ANDCOBALT SUBCATEGORY


day

Maximumfor monthly

average






day

Maximumfor monthly

average




616

40 CFR Ch. I (7–1–98 Edition)§ 421.316

PSNS FOR THE SECONDARY TUNGSTEN ANDCOBALT SUBCATEGORY—Continued


day

Maximumfor monthly

average

Tungsten .................................... 8.947 3.985




day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average


Copper ....................................... 53.310 25.410Nickel ......................................... 22.910 15.410Ammonia (as N) ......................... 5,552,000 2,441.000Cobalt ......................................... 114.954 50.397Tungsten .................................... 144.900 64.560




day

Maximumfor monthly

average


Copper ....................................... 24.400 11.630Nickel ......................................... 10.490 7.053


617


PSNS FOR THE SECONDARY TUNGSTEN ANDCOBALT SUBCATEGORY—Continued


day

Maximumfor monthly

average

Ammonia (as N) ......................... 2,541.000 1,117.000Cobalt ......................................... 52.611 23.065Tungsten .................................... 66.340 29.550




day

Maximumfor monthly

average






day

Maximumfor monthly

average





Subpart AD—Secondary UraniumSubcategory


§ 421.320 Applicability: Description ofthe secondary uranium sub-category.

The provisions of this subpart are ap-plicable to discharges resulting fromthe production of uranium (including

depleted uranium) by secondary ura-nium facilities.




Except as provided in 40 CFR 125.30through 125.32, any existing pointsource subject to this subpart shallachieve the following effluent limita-tions representing the degree of efflu-ent reduction attainable by the appli-cation of the best practiacable tech-nology currently available:

(a) Refinery sump filtrate.

BPT LIMITATIONS FOR THE SECONDARYURANIUM SUBCATEGORY


day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of uraniumprocessed in the refin-ery

Chromium ................................... 32.270 13.200Copper ....................................... 139.300 73.340Nickel ......................................... 140.800 93.140Fluoride ...................................... 2,567.000 1,459.000Total suspended solids .............. 3,007.000 1,430.000pH ............................................... (1) (1)


(b) Slag leach reslurry.



day

Maximumfor monthly

average


Chromium (total) ........................ 2.009 0.822Copper ....................................... 8.675 4.566Nickel ......................................... 8.767 5.799Fluoride ...................................... 159.800 90.860Total suspended solids .............. 187.200 89.040pH ............................................... (1) (1)



618

40 CFR Ch. I (7–1–98 Edition)§ 421.322

(c) Solvent extraction raffinate fil-trate.



day

Maximumfor monthly

average




(d) Digestion wet air pollution con-trol.



day

Maximumfor monthly

average




(e) Evaporation and denitration wetair pollution control.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of uranium tri-oxide produced



(f) Hydrofluorination alkaline scrub-ber.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of uranium tet-rafluoride produced



(g) Hydrofluorination water scrubber.



day

Maximumfor monthly

average




(h) Magnesium reduction and castingfloor wash.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of uraniumproduced by magne-sium reduction



(i) Laundry wastewater.


619




day

Maximumfor monthly

average







BAT LIMITATIONS FOR THE SECONDARYURANIUM SUBCATEGORY


day

Maximumfor monthly

average


Chromium (total) ........................ 27.14 11.00Copper ....................................... 93.88 44.74Nickel ......................................... 40.34 27.14Fluoride ...................................... 2,567.00 1,459.00




day

Maximumfor monthly

average


Chromium (total) ........................ 1.689 0.685Copper ....................................... 5.844 2.785

BAT LIMITATIONS FOR THE SECONDARYURANIUM SUBCATEGORY—Continued


day

Maximumfor monthly

average

Nickel ......................................... 2.511 1.689Fluoride ...................................... 159.800 90.860




day

Maximumfor monthly

average


Chromium (total) ........................ 2.357 0.955Copper ....................................... 8.152 3.885Nickel ......................................... 3.503 2.357Fluoride ...................................... 222.900 126.700




day

Maximumfor monthly

average






day

Maximumfor monthly

average





620

40 CFR Ch. I (7–1–98 Edition)§ 421.324



day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






NSPS FOR THE SECONDARY URANIUMSUBCATEGORY


day

Maximumfor monthly

average


Chromium (total) ........................ 27.14 11.00Copper ....................................... 93.88 44.74Nickel ......................................... 40.34 27.14Fluoride ...................................... 2,567.00 1,459.00Total suspended solids .............. 1,100.00 880.10pH ............................................... (1) (1)





day

Maximumfor monthly

average


Chromium (total) ........................ 1.689 0.685Copper ....................................... 5.844 2.785Nickel ......................................... 2.511 1.689Fluoride ...................................... 159.800 90.860Total suspended solids .............. 68.490 54.790pH ............................................... (1 ) (1)



621





day

Maximumfor monthly

average







day

Maximumfor monthly

average




(e) Evaporation and denitration wetair pollution control



day

Maximumfor monthly

average







day

Maximumfor monthly

average







day

Maximumfor monthly

average







day

Maximumfor monthly

average






622

40 CFR Ch. I (7–1–98 Edition)§ 421.325



day

Maximumfor monthly

average






Except as provided in 40 CFR 403.7,any new source subject to this subpartwhich introduces pollutants into a pub-licly owned treatment works mustcomply with 40 CFR part 403 andachieve the following pretreatmentstandards for new sources. The mass ofwastewater pollutants in secondaryuranium process wastewater intro-duced into a POTW shall not exceedthe following values:


PSNS FOR THE SECONDARY URANIUMSUBCATEGORY


day

Maximumfor monthly

average


Chromium (total) ........................ 27.14 11.00Copper ....................................... 93.88 44.74Nickel ......................................... 40.34 27.14Fluoride ...................................... 2,567.00 1,459.00




day

Maximumfor monthly

average


Chromium (total) ........................ 1.689 0.685

PSNS FOR THE SECONDARY URANIUMSUBCATEGORY—Continued


day

Maximumfor monthly

average

Copper ....................................... 5.844 2.785Nickel ......................................... 2.511 1.689Fluoride ...................................... 159.800 90.860




day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average




623





day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average


Chromium (total) ........................ 0.036 0.014

PSNS FOR THE SECONDARY URANIUMSUBCATEGORY—Continued


day

Maximumfor monthly

average

Copper ....................................... 0.123 0.059Nickel ......................................... 0.053 0.036Fluoride ...................................... 3.360 1.910


Subpart AE—Primary Zirconiumand Hafnium Subcategory


§ 421.330 Applicability: Description ofthe primary zirconium and hafniumsubcategory.

The provisions of this subpart are ap-plicable to discharges resulting fromthe production of zirconium or hafniumat primary zirconium and hafnium fa-cilities. There are two levels of BPT,BAT, NSPS, PSES and PSNS provi-sions for this subpart. Facilities whichonly produce zirconium or zirconium/nickel alloys by magnesium reductionof zirconium dioxide are exempt fromregulations. All other facilities aresubject to these regulations.





(a) Sand drying wet air pollution con-trol.


624

40 CFR Ch. I (7–1–98 Edition)§ 421.332

BPT LIMITATIONS FOR THE PRIMARY ZIRCONIUMAND HAFNIUM SUBCATEGORY


day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of zirconiumdioxide and hafnium di-oxide produced

Chromium (total) ........................ 0.250 0.102Cyanide (total) ............................ 0.165 0.068Lead ........................................... 0.239 0.114Nickel ......................................... 1.091 0.721Ammonia (as N) ......................... 75.710 33.280Total suspended solids .............. 23.290 11.080pH ............................................... (1 ) (1 )


(b) Sand chlorination off-gas wet airpollution control.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of zironium di-oxide and hafnium di-oxide produced

Chromium (total) ........................ 19.130 7.825Cyanide (total) ............................ 12.610 5.216Lead ........................................... 18.260 8.694Nickel ......................................... 83.460 55.210Ammonia (as N) ......................... 5,795.000 2,547.000Total suspended solids .............. 1,782.000 847.700pH ............................................... (1 ) (1 )


(c) Sand chlorination area-vent wetair pollution control.



day

Maximumfor monthly

average


Chromium (total) ........................ 3.751 1.534Cyanide (total) ............................ 2.472 1.023Lead ........................................... 3.580 1.705Nickel ......................................... 16.370 10.830Ammonia (as N) ......................... 1,136.000 449.500Total suspended solids .............. 349.500 166.200pH ............................................... (1 ) (1 )


(d) SiCl4 purification wet air pollu-tion control.



day

Maximumfor monthly

average




(e) Feed makeup wet air pollutioncontrol.



day

Maximumfor monthly

average




(f) Iron extraction (MIBK) steamstripper bottoms.



day

Maximumfor monthly

average


Chromium (total) ........................ 0.987 0.404Cyanide (total) ............................ 0.651 0.269Lead ........................................... 0.942 0.449Nickel ......................................... 4.308 2.850Ammonia (as N) ......................... 299.100 131.500Total suspended solids .............. 92.000 43.760pH ............................................... (1) (1)


(g) Zirconium filtrate.


625




day

Maximumfor monthly

average


Chromium (total) ........................ 17.070 6.982Cyanide (total) ............................ 11.250 4.655Lead ........................................... 16.290 7.758Nickel ......................................... 74.480 49.260Ammonia (as N) ......................... 5,171.000 2,273.000Total suspended solids .............. 1,590.000 756.400pH ............................................... (1) (1)


(h) Hafnium filtrate.



day

Maximumfor monthly

average




(i) Calcining caustic wet air pollutioncontrol.



day

Maximumfor monthly

average


Chromium (total) ........................ 3.959 1.619Cyanide (total) ............................ 2.609 1.080Lead ........................................... 3.779 1.799Nickel ......................................... 17.270 11.430Ammonia (as N) ......................... 1,199.000 527.200Total suspended solids .............. 368.900 175.400pH ............................................... (1) (1)


(j) Pure chlorination wet air pollu-tion control.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of zirconiumand hafnium produced

Chromium (total) ........................ 16.860 6.897Cyanide (total) ............................ 11.110 4.598Lead ........................................... 16.090 7.663Nickel ......................................... 73.570 48.660Ammonia (as N) ......................... 5,108.000 2,245.000Total suspended solids .............. 1,571.000 747.200pH ............................................... (1 ) (1 )


(k) Reduction area-vent wet air pol-lution control.



day

Maximumfor monthly

average




(l) Magnesium recovery off-gas wetair pollution control.



day

Maximumfor monthly

average


Chromium (total) ........................ 9.123 3.732Cyanide (total) ............................ 6.013 2.488Lead ........................................... 8.708 4.147Nickel ......................................... 39.810 26.330Ammonia (as N) ......................... 2,764.000 1,215.000Total suspended solids .............. 850.100 404.300pH ............................................... (1 ) (1 )


(m) Magnesium recovery area-ventwet air pollution control.


626

40 CFR Ch. I (7–1–98 Edition)§ 421.332



day

Maximumfor monthly

average



1 Within the range of 7.5 to 10.0. .

(n) Zirconium chip crushing wet airpollution control.



day

Maximumfor monthly

average




(o) Acid leachate from zirconiummetal production.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of pure zir-conium produced

Chromium (total) ........................ 12.970 5.304Cyanide (total- ............................ 8.545 3.536Lead ........................................... 12.380 5.893Nickel ......................................... 56.570 37.420Ammonia (as N) ......................... 3,928.000 1,727.000Total suspended solids .............. 1,208.000 574.600pH ............................................... (1) (1)


(p) Acid leachate from zirconiumalloy production.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of zirconiumcontained in alloys pro-duced



(q) Leaching rinse water from zir-conium metal production.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of zirconiumproduced

Chromium (total) ........................ 25.930 10.610Cyanide (total) ............................ 17.090 7.072Lead ........................................... 24.750 11.790Nickel ......................................... 113.200 74.840Ammonia (as N) ......................... 7,856.000 3,453.000Total suspended solids .............. 2,416.000 1,149.000pH ............................................... (1) (1)


(r) Leaching rinse water from zir-conium alloy production.



day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of zirconium inalloys produced




627





BAT LIMITATIONS FOR THE PRIMARY ZIRCONIUMAND HAFNIUM SUBCATEGORY


day

Maximumfor monthly

average


Chromium (total) ........................ 0.210 0.085Cyanide (total) ............................ 0.114 0.045Lead ........................................... 0.159 0.074Nickel ......................................... 0.312 0.210Ammonia (as N) ......................... 75.710 33.280




day

Maximumfor monthly

average


Chromium (total) ........................ 16.080 6.521Cyanide (total) ............................ 8.694 3.478Lead ........................................... 12.170 5.651Nickel ......................................... 23.910 16.080Ammonia (as N) ......................... 5,795.000 2,547.000




day

Maximumfor monthly

average


Chromium (total) ........................ 3.154 1.279Cyanide (total) ............................ 1.705 0.682Lead ........................................... 2.387 1.108Nickel ......................................... 4.688 3.154Ammonia (as N) ......................... 1,136.000 499.500




day

Maximumfor monthly

average






day

Maximumfor monthly

average





628

40 CFR Ch. I (7–1–98 Edition)§ 421.333

BAT LIMITATIONS FOR THE PRIMARY ZIRCONIUMHAFNIUM SUBCATEGORY


day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average




BAT LIMITATIONS FOR THE PRIMARYZIROCONIUM AND HAFNIUM SUBCATEGORY


day

Maximumfor monthly

average





629




day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average





630

40 CFR Ch. I (7–1–98 Edition)§ 421.334



day

Maximumfor monthly

average






NSPS FOR THE PRIMARY ZIRCONIUM ANDHAFNIUM SUBCATEGORY


day

Maximumfor monthly

average







day

Maximumfor monthly

average


Chromium (total) ........................ 16.080 6.521Cyanide (total) ............................ 8.694 3.478Lead ........................................... 12.170 5.651Nickel ......................................... 23.910 16.080Ammonia (as N) ......................... 5,795.000 2,547.000Total suspended solids .............. 652.100 521.000pH ............................................... (1 ) (1 )





day

Maximumfor monthly

average




(d) SiC14 purification wet air pollu-tion control.



day

Maximumfor monthly

average







day

Maximumfor monthly

average





631





day

Maximumfor monthly

average







day

Maximumfor monthly

average


Chromium (total) ........................ 14.350 5.819Cyanide (total) ............................ 7.758 3.103Lead ........................................... 10.860 5.043Nickel ......................................... 21.330 14.350Ammonia (as N) ......................... 5,171.000 2,273.000Total suspended solids .............. 581.900 465.500pH ............................................... (1) (1)





day

Maximumfor monthly

average







day

Maximumfor monthly

average







day

Maximumfor monthly

average







day

Maximumfor monthly

average






632

40 CFR Ch. I (7–1–98 Edition)§ 421.334



day

Maximumfor monthly

average





NSPS LIMITATIONS FOR THE PRIMARYZIRCONIUM AND HAFNIUM SUBCATEGORY


day

Maximumfor monthly

average




(n) Zirconium chip crushing west airpollution control.



day

Maximumfor monthly

average







day

Maximumfor monthly

average







day

Maximumfor monthly

average





NSPS LIMITATIONS FOR THE PRIMARYZIRCONIUM AND HAFNIUM SUBCATEGORY


day

Maximumfor monthly

average






633




day

Maximumfor monthly

average






Except as provided in 40 CFR 403.7,any new source subject to this subpartwhich introduces pollutants into a pub-licly owned treatment works mustcomply with 40 CFR part 403 andachieve the following pretreatmentstandards for new sources. The mass ofwastewater pollutants in primary zir-conium and hafnium process waste-water introduced into a POTW shallnot exceed the following values:


PSNS FOR THE PRIMARY ZIRCONIUM ANDHAFNIUM SUBCATEGORY


day

Maximumfor monthly

average






day

Maximumfor monthly

average



(c) Sand chlorination area vent wetair pollution control.



day

Maximumfor monthly

average






day

Maximumfor monthly

average





634

40 CFR Ch. I (7–1–98 Edition)§ 421.336



day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average


Chromium (total) ........................ 14.180 5.748Cyanide (total) ............................ 7.663 3.065Lead ........................................... 10.730 4.981Nickel ......................................... 21.007 14.180Ammonia (as N) ......................... 5,108.000 2,245,000



635




day

Maximumfor monthly

average

mg/kg (pounds per millionpounds) of Zirconiumand hafnium produced





day

Maximumfor monthly

average




PSNS LIMITATIONS FOR THE PRIMARYZIRCONIUM AND HAFNIUM SUBCATEGORY


day

Maximumfor monthly

average


Chromium (total) ........................ 4.262 1.728Cyanide (total) ............................ 2.304 0.921Lead ........................................... 3.225 1.497Nickel ......................................... 6.335 4.262Ammonia (as N) ......................... 1,535,000 675.00




day

Maximumfor monthly

average






day

Maximumfor monthly

average






day

Maximumfor monthly

average





636

40 CFR Ch. I (7–1–98 Edition)§ 421.337

PSNS LIMITATIONS FOR THE PRIMARYZIRCONIUM AND HAFNIUM SUBCATEGORY


day

Maximumfor monthly

average






day

Maximumfor monthly

average




PART 422—PHOSPHATE MANUFAC-TURING POINT SOURCE CAT-EGORY

Subpart A—Phosphorus ProductionSubcategory

Sec.422.10 Applicability; description of the phos-

phorus production subcategory.

Subpart B—Phosphorus ConsumingSubcategory

422.20 Applicability; description of the phos-phorus consuming subcategory.

Subpart C—Phosphate Subcategory

422.30 Applicability; description of the phos-phate subcategory.

Subpart D—Defluorinated Phosphate RockSubcategory

422.40 Applicability; description of thedefluorinated phosphate rock sub-category.

422.41 Specialized definitions.422.42 Effluent limitations and guidelines

representing the degree of effluent reduc-tion attainable by the application of thebest practicable control technology cur-rently available.

422.43 Effluent limitations and guidelinesrepresenting the degree of effluent reduc-tion attainable by the application of thebest available technology economicallyachievable.


sources.422.46 [Reserved]422.47 Effluent limitations guidelines rep-

resenting the degree of effluent reductionattainable by the application of the bestconventional pollutant control tech-nology.

Subpart E—Defluorinated Phosphoric AcidSubcategory

422.50 Applicability; description of thedefluorinated phosphoric acid sub-category.





sources.422.56 [Reserved]422.57 Effluent limitations guidelines rep-

resenting the degree of effluent reductionattainable by the application of the bestconventional pollutant control tech-nology.

Subpart F—Sodium PhosphatesSubcategory

422.60 Applicability; description of the so-dium phosphates subcategory.





sources.


§420.127 40 cfr ch. i (7–1–98 edition) -...

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