part 420—iron and steel manu- facturing point...

383

Environmental Protection Agency Pt. 420

40. Phenol Extraction

Reforming and Alkylation Processes

8. H2SO4 Alkylation12. Catalytic Reforming

[50 FR 28528, July 12, 1985; 50 FR 32414, Aug.12, 1985]

PART 420—IRON AND STEEL MANU-FACTURING POINT SOURCE CAT-EGORY

GENERAL PROVISIONS

Sec.420.01 Applicability.420.02 General definitions.420.03 Alternative effluent limitations rep-

resenting the degree of effluent reductionattainable by the application of bestpracticable control technology currentlyavailable, best available technology, andbest conventional technology.

420.04 Calculation of pretreatment stand-ards.

420.05 Pretreatment standards compliancedate.

420.06 Removal credits for phenols (4AAP).

Subpart A—Cokemaking Subcategory

420.10 Applicability; description of thecokemaking subcategory.

420.11 Specialized definitions.420.12 Effluent limitations representing the

degree of effluent reduction attainableby the application of the best practicablecontrol technology currently available(BPT).

420.13 Effluent limitations representing thedegree of effluent reduction attainableby the application of the best availabletechnology economically achievable(BAT).

420.14 New source performance standards(NSPS).

420.15 Pretreatment standards for existingsources (PSES).

420.16 Pretreatment standards for newsources (PSNS).

420.17 Effluent limitations representing thedegree of effluent reduction attainableby the application of the best conven-tional technology (BCT).

Subpart B—Sintering Subcategory

420.20 Applicability; description of the sin-tering subcategory.

420.21 [Reserved]420.22 Effluent limitations representing the






420.27 [Reserved]

Subpart C—Ironmaking Subcategory

420.30 Applicability; description of theironmaking subcategory.







420.37 [Reserved]

Subpart D—Steelmaking Subcategory

420.40 Applicability; description of thesteelmaking subcategory.







420.47 Effluent limitations representing thedegree of effluent reduction attainableby the application of the best conven-tional control technology (BCT).

Subpart E—Vacuum DegassingSubcategory

420.50 Applicability; description of the vacu-um degassing subcategory.

VerDate 27<AUG>98 10:07 Aug 28, 1998 Jkt 179160 PO 00000 Frm 00379 Fmt 8010 Sfmt 8010 Y:\SGML\179160T.XXX pfrm01 PsN: 179160T

384

40 CFR Ch. I (7–1–98 Edition)Pt. 420







420.57 [Reserved]

Subpart F—Continuous CastingSubcategory

420.60 Applicability; description of the con-tinuous casting subcategory.







420.67 [Reserved]

Subpart G—Hot Forming Subcategory

420.70 Applicability; description of the hotforming subcategory.







420.77 Effluent limitations representing thedegree of effluent reduction attainable

by the application of the best conven-tional technology (BCT).

Subpart H—Salt Bath DescalingSubcategory

420.80 Applicability; description of the saltbath descaling subcategory.








Subpart I—Acid Pickling Subcategory

420.90 Applicability; description of the acidpickling subcategory.








Subpart J—Cold Forming Subcategory

420.100 Applicability; description of the coldforming subcategory.

420.101 Specialized definitions.420.102 Effluent limitations representing

the degree of effluent reduction attain-able by the application of the best prac-ticable control technology currentlyavailable (BPT).


385

Environmental Protection Agency § 420.01

420.103 Effluent limitations representingthe degree of effluent reduction attain-able by the application of the best avail-able technology economically achievable(BAT).




420.107 Effluent limitations representingthe degree of effluent reduction attain-able by the application of the best con-ventional technology (BCT).

Subpart K—Alkaline Cleaning Subcategory

420.110 Applicability; description of the al-kaline cleaning subcategory.








Subpart L—Hot Coating Subcategory

420.120 Applicability; description of the hotcoating subcategory.








AUTHORITY: Secs. 301; 304 (b), (c), (e), and(g); 306 (b) and (c); 307; 308 and 501 of theClean Water Act (the Federal Water Pollu-tion Control Act Amendments of 1972, asamended by the Clean Water Act of 1977) (the‘‘Act’’); 33 U.S.C. 1311; 1314 (b), (c), (e), and(g); 1316 (b) and (c); 1317; 1318; and 1361; 86Stat. 816, Pub. L. 92–500; 91 Stat. 1567; Pub. L.95–217.

SOURCE: 47 FR 23284, May 27, 1982, unlessotherwise noted.

GENERAL PROVISIONS

§ 420.01 Applicability.(a) The provisions of this part apply

to discharges and to the introductionof pollutants into a publicly ownedtreatment works resulting from pro-duction operations in the Iron andSteel Point Source Category.

(b) Central Treatment Facilities: (1)The following central treatment facili-ties presently discharging through thespecified outfall are temporarily ex-cluded from the provisions of this part,provided, the owner or operator of thefacility requests the Agency to con-sider establishing alternative effluentlimitations and provides the Agencywith the information set out in para-graph (b)(2) of this section, on or beforeJuly 26, 1982.

Plant NPDES permitNo.

Central treatment fa-cility

1. Armco Steel, Ash-land, KY.

KY 0000485 .. Total Plant.

2. Bethlehem Steel,Sparrows Point,MD.

MD 0001201 .. Humphrey’s CreekOutfall 014.

3. Bethlehem Steel,Burns Harbor, IN.

IN 0000175 .... Total Plant.

4. Ford Motor Co.,Dearborn, MI.

MI 0003361 ... Schaefer RoadTreatment Plant.

5. Interlake, Inc.,1Riverdale, IL.

IL 0002119 .... Discharge to POTW.

6. J&L Steel, Ali-quippa, PA.

PA 0006131 .. Chemical RinseTreatment PlantOutfall 018.

7. J&L Steel, Cleve-land, OH.

OH 0000850 .. Hot Forming andFinishing Treat-ment Plant.

8. J&L Steel, Henne-pin, IL.

IL 0002631 .... Total Plant.

9. J&L Steel, Louis-ville, OH.

OH 0007188 .. Total Plant.

10. J&L Steel, EastChicago, IN.

IN 0000205 .... Terminal TreatmentPlant.

11. Laclede Steel,Alton, IL.


12. National Steel,Granite City, IL.


13. National Steel,Portage, IN.

IN 0000337 .... Total Plant.

14. National Steel,Weirton, WV.

WV 0003336 Outfall B.


386

40 CFR Ch. I (7–1–98 Edition)§ 420.02

Plant NPDES permitNo.

Central treatment fa-cility

15. Republic Steel,Gadsden, AL.

AL 0003522 ... Total Plant.

16. Republic Steel,1Chicago, IL0002593.

IL. 0002593 ... Discharge to POTW.

17. U.S. Steel, Lo-rain, OH.

OH 0001562 .. Pipe Mill Lagoon.

18. U.S. Steel,Provo, UT.

UT 0000361 .. Total Plant.

19. U.S. Steel,Fairless Hills, PA.

PA 0013463 .. Terminal TreatmentPlant.

20. U.S. Steel, Gary,IN.

IN 0000281 .... Terminal Lagoons.

21. U.S. Steel,1 Chi-cago, IL.

IL 0002691 .... Discharge to POTW.

1 The request for alternative effluent limitations for theseplants are for indirect discharges to POTWs

(2) The information to be submittedwith the request for consideration ofalternative effluent limitations is toinclude:

(i) A schematic diagram of the exist-ing wastewater treatment facilityshowing each source of wastewater,cooling water, and other waters enter-ing the treatment facility; dischargeand recycle flow rates for each watersource and each major treatment com-ponent;

(ii) Existing monitoring data relatingto discharges to and from the centraltreatment facility including pollutantconcentrations, flows and mass load-ings; As a minimum, monitoring datashould be provided for a six month pe-riod of normal operation of the produc-tion and treatment facilities. The com-plete data as well as a data summaryincluding the maximum, minimum,and mean gross discharge loadings andthe standard deviation of the dischargeloadings for each monitored pollutantshould be provided. Any supplementalmonitoring data for toxic pollutantsshould also be provided.

(iii) A scale map of the area of theplant served by the wastewater treat-ment facility, including the treatmentfacility and water supply and dischargepoints;

(iv) An estimate of the least costlyinvestment required to meet the gen-erally applicable limitations or stand-ards for the facility and a descriptionof such treatment system includingschematic diagrams showing the majortreatment system components and flowrates through the system. As a mini-mum, the cost estimates should becomprised of a single page summary for

each water pollution control systemshowing estimated installed direct costtotals for mechanical equipment; pip-ing and instrumentation; foundationsand structural components; and, elec-trical components. Indirect costs forcontingencies, overhead and profit, en-gineering fees, and any other indirectcosts must be itemized separately. Thesum of the direct and indirect costswhich represents the owner’s or opera-tor’s total estimate, must be shown.

(v) The effluent limitations or stand-ards which could be achieved if the dis-charger were to spend an amount equalto the Agency’s model treatment sys-tem cost estimate for the facility andthe treatment facilities which would beused to meet those limitations orstandards. Schematic diagrams andcost estimates as outlined in paragraph(b)(2)(iv) of this section, should be pro-vided for each treatment system; and,

(vi) Production rates in tons per dayfor each process contributing waste-water to the central treatment facilityconsistent with those reported by theowner or operator in the NPDES per-mit application for the central treat-ment facility.

(3) The request described in sub-section (b)(1) of this section, must bebased upon the owner’s or operator’sbelief that the cost of bringing thespecified central treatment facilitiesinto compliance with the provisions ofthis part would require expenditures sohigh compared to the Agency’s modeltreatment system cost estimate appli-cable to that facility that the applica-ble limitations or standards would notrepresent BPT, BAT, BCT, or PSES, asthe case may be, for the facility.

[47 FR 23284, May 27, 1982, as amended at 47FR 41739, Sept. 22, 1982]

§ 420.02 General definitions.In addition to the definitions set

forth in 40 CFR part 401, the followingdefinitions apply to this part:

(a) The term TSS (or total suspendedsolids, or total suspended residue)means the value obtained by the meth-od specified in 40 CFR 136.3.

(b) The term oil and grease (or O&G)means the value obtained by the meth-od specified in 40 CFR 136.3.

(c) The term ammonia-N (or ammo-nia-nitrogen) means the value obtained


387


by manual distillation (at pH 9.5) fol-lowed by the Nesslerization methodspecified in 40 CFR 136.3.

(d) The term cyanide means total cy-anide and is determined by the methodspecified in 40 CFR 136.3.

(e) The term phenols 4AAP (or pheno-lic compounds) means the value ob-tained by the method specified in 40CFR 136.3.

(f) The term TRC (or total residualchlorine) means the value obtained bythe iodometric titration with an am-perometric endpoint method specifiedin 40 CFR 136.3.

(g) The term chromium means totalchromium and is determined by themethod specified in 40 CFR 136.3.

(h) The term hexavalent chromium (orchromium VI) means the value ob-tained by the method specified in 40CFR 136.3.

(i) The term copper means total cop-per and is determined by the methodspecified in 40 CFR 136.3.

(j) The term lead means total leadand is determined by the method speci-fied in 40 CFR 136.3.

(k) The term nickel means total nick-el and is determined by the methodspecified in 40 CFR 136.3.

(l) The term zinc means total zincand is determined by the method speci-fied in 40 CFR 136.3.

(m) The term benzene (or priority pol-lutant No. 4) means the value obtainedby the standard method Number 602specified in 44 FR 69464, 69570 (Decem-ber 3, 1979).

(n) The term benzo(a)pyrene (or prior-ity pollutant No. 73) means the valueobtained by the standard method Num-ber 610 specified in 44 FR 69464, 69570(December 3, 1979).

(o) The term naphthalene (or prioritypollutant No. 55) means the value ob-tained by the standard method Number610 specified in 44 FR 69464, 69571 (De-cember 3, 1979).

(p) The term tetrachloroethylene (orpriority pollutant No. 85) means thevalue obtained by the standard methodNumber 610 specified in 44 FR 69464,69571 (December 3, 1979).

(q) The term pH means the value ob-tained by the standard method speci-fied in 40 CFR 136.3.

§ 420.03 Alternative effluent limita-tions representing the degree of ef-fluent reduction attainable by theapplication of best practicable con-trol technology currently available,best available technology, and bestconventional technology.

(a) Except as provided in paragraphs(b)(1) through (b)(3) of this section, anyexisting point source subject to thispart may qualify for alternative efflu-ent limitations to those specified inpart 420, subparts A through L for anumber of its processes representingthe degree of effluent reduction attain-able by the application of best prac-ticable control technology currentlyavailable, best available technologyeconomically achievable, and best con-ventional technology. The alternativeeffluent limitations for each pollutantare determined for a combination ofoutfalls by totaling the mass limita-tions of each pollutant allowed undersubparts A through L and subtractingfrom each total an appropriate net re-duction amount. The permit authorityshall determine an appropriate net re-duction amount for each pollutanttraded based upon consideration of ad-ditional available control measureswhich would result in non-trival (sub-stantial) effluent reductions and whichcan be achieved without requiring sig-nificant additional expenditures at anyoutfall(s) in the combination for whichthe discharge is projected to be betterthan required by this regulation.

(b) In the case of Total SuspendedSolids (TSS) and Oil and Grease (O&G),the minimum net reduction amountshall be approximately 15 percent ofthe amount(s) by which any wastestream(s) in the combination will ex-ceed otherwise allowable effluent limi-tations. For all other traded pollut-ants, the minimum net reductionamount shall be appoximately 10 per-cent of the amount(s) by which the dis-charges from any waste stream(s) inthe combination will exceed otherwiseallowable effluent limitations for eachpollutant under this regulation.

(1) A discharger cannot qualify for al-ternative effluent limitations if the ap-plication of such alternative effluentlimitations would result in violation ofany applicable State water qualitystandards.


388

40 CFR Ch. I (7–1–98 Edition)§ 420.04

(2) Each outfall from which processwastewaters are discharged must havespecific, fixed effluent limitations foreach pollutant limited by the applica-ble subparts A through L.

(3) Subcategory-Specific Restric-tions:

(i) There shall be no alternate efflu-ent limitations for cokemaking processwastewaters;

(ii) There shall be no alternate efflu-ent limitations for cold forming proc-ess wastewaters.

[49 FR 21028, May 17, 1984]

§ 420.04 Calculation of pretreatmentstandards.

(a) Pretreatment standards shall becalculated for each operation using theapplicable average rate of productionreported by the owner or operator ofthe facility to the Control Authority inaccordance with 40 CFR 403.12(b)(3).

(b) The average rate of production re-ported by the owner or operator in ac-cordance with 40 CFR 403.12(b)(3) shallbe based not upon the design produc-tion capacity but rather upon a reason-able measure of actual production ofthe facility, such as the productionduring the high month of the previousyear, or the monthly average for thehighest of the previous 5 years. Fornew sources or new dischargers, actualproduction shall be estimated usingprojected production.

(c) If, due to a change of cir-cumstances, the average rate of pro-duction for an operation reported bythe owner or operator of the facility tothe Control Authority in accordancewith 40 CFR 403.12(b)(3) does not rep-resent a reasonable measure of actualproduction of that operation, theowner or operator must submit to theControl Authority a modified averagerate of production.

[49 FR 21029, May 17, 1984; 49 FR 24726, June15, 1984; 49 FR 25634, June 22, 1984]

§ 420.05 Pretreatment standards com-pliance date.

The final compliance date for thecategorical pretreatment standards setforth in 40 CFR part 420 is July 10, 1985.

[48 FR 46943, Oct. 14, 1983]

§ 420.06 Removal credits for phenols(4AAP).

Removal allowances pursuant to 40CFR 403.7(a)(1) may be granted for phe-nols (4AAP) limited in 40 CFR part 420when used as an indicator or surrogatepollutant.

[49 FR 21029, May 17, 1984]

Subpart A—CokemakingSubcategory

§ 420.10 Applicability; description ofthe cokemaking subcategory.

The provisions of this subpart are ap-plicable to discharges and introductionof pollutants into publicly owned treat-ment works resulting from by-productand beehive cokemaking operations.

§ 420.11 Specialized definitions.(a) The term beehive cokemaking

means those operations in which coalis heated with the admission of air incontrolled amounts for the purpose ofproducing coke. There are no by-prod-uct recovery operations associatedwith beehive cokemaking operations.

(b) The term by-product cokemakingmeans those cokemaking operations inwhich coal is heated in the absence ofair to produce coke. In this process, by-products may be recovered from thegases and liquids driven from the coalduring cokemaking.

(c) The term merchant means thoseby-product cokemaking operationswhich provide more than fifty percentof the coke produced to operations, in-dustries, or processes other than ironmaking blast furnaces associated withsteel production.

(d) The term iron and steel meansthose by-product cokemaking oper-ations other than merchant coke-making operations.

(e) The term wet desulfurization sys-tem means those systems which removesulfur compounds from coke oven gasesand produce a contaminated processwastewater.

(f) The term indirect ammonia recoverysystem means those systems which re-cover ammonium hydroxide as a by-product from coke oven gases andwaste ammonia liquors.

(g) The term physical chemical treat-ment system means those full scale coke


389


plant wastewater treatment systemsincorporating full scale granular acti-vated carbon adsorption units whichwere in operation prior to January 7,1981, the date of proposal of this regula-tion.

§ 420.12 Effluent limitations represent-ing the degree of effluent reductionattainable by the application of thebest practicable control technologycurrently available (BPT).

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.

(a) By-product cokemaking—iron andsteel.

SUBPART A

Pollutant or pollutant property

BPT effluent limitations

Maximumfor any 1

day

Average ofdaily val-ues for 30consecu-tive days

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

TSS ................................................ 0.253 0.131O&G ............................................... 0.0327 0.0109Ammonia-N .................................... 0.274 0.0912Cyanide .......................................... 0.0657 0.0219Phenols (4AAP) ............................. 0.00451 0.00150pH ................................................... (1) (1)

1 Within the range of 6.0 to 9.0.

(1) Increased loadings, not to exceed11 percent of the above limitations, areallowed for by-product coke plantswhich have wet desulfurization sys-tems but only to the extent such sys-tems generate an increased effluentvolume.

(2) Increased loadings, not to exceed27 percent of the above limitations, areallowed for by-product coke plantswhich include indirect ammonia recov-ery systems but only to the extent thatsuch systems generate an increased ef-fluent volume.

(b) By-product cokemaking—merchant.

SUBPART A



Maximumfor any 1

day



TSS ................................................ 0.270 0.140O&G ............................................... 0.0349 0.0116Ammonia-N .................................... 0.292 0.0973Cyanide .......................................... 0.0701 0.0234Phenols (4AAP) ............................. 0.00481 0.00160pH ................................................... (1) (1)




(c) Beehive cokemaking. No dischargeof process wastewater pollutants tonavigable waters.

§ 420.13 Effluent limitations represent-ing the degree of effluent reductionattainable by the application of thebest available technology economi-cally achievable (BAT).

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 available technologyeconomically achievable.



390

40 CFR Ch. I (7–1–98 Edition)§ 420.13

SUBPART A


BAT effluent limitations

Maximum forany 1 day

Average ofdaily valuesfor 30 con-

secutive days

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

Ammonia-N ............................ 0.0543 0.0160Cyanide .................................. 0.00638 0.00351Phenols (4AAP) ..................... 0.0000638 0.0000319Benzene ................................. 0.0000319 ......................Naphthalene ........................... 0.0000319 ......................Benzo(a)pyrene ...................... 0.0000319 ......................


(2) Increased loadings, not to exceed39 percent of the above limitations, areallowed for by-product coke plantswhich include indirect ammonia recov-ery systems but only to the extentsuch systems generate an increased ef-fluent volume.

(3) The following BAT effluent limi-tations shall be applicable to by-prod-uct coke plants with physical chemicaltreatment systems:

SUBPART A





secutive days


Ammonia-N ............................ 0.0645 0.0322Phenols (4AAP) ..................... 0.0000859 0.0000430Benzene ................................. 0.0000215 ......................Naphthalene ........................... 0.0000215 ......................Benzo(a)pyrene ...................... 0.0000215 ......................

Increased loadings, not to exceed 24percent of the above limitations, areallowed for by-product coke plantswith physical chemical treatment sys-tems which have wet desulfurizationsystems but only to the extent suchsystems generate an increased effluentvolume.


SUBPART A





secutive days


Ammonia-N ............................ 0.0603 0.0177Cyanide .................................. 0.00709 0.00390Phenols (4AAP) ..................... 0.0000709 0.0000355Benzene ................................. 0.0000355 ......................Naphthalene ........................... 0.0000355 ......................Benzo(a)pyrene ...................... 0.0000355 ......................


(2) Increased loadings, not to exceed35 percent of the above limitations, areallowed for by-product coke plantswhich include indirect ammonia recov-ery systems but only to the extentsuch systems generate an increased ef-fluent volume.

(3) The following BAT effluent limi-tations shall be applicable to by-prod-uct coke plants with physical chemicaltreatment systems:

SUBPART A





secutive days


Ammonia-N ............................ 0.0751 0.0375Phenols(4AAP) ....................... 0.000100 0.0000501Benzene ................................. 0.0000250 ......................Naphthalene ........................... 0.0000250 ......................Benzo(a)pyrene ...................... 0.0000250 ......................

Increased loadings, not to exceed 21percent of the above limitations, areallowed for by-product coke plantswith physical chemical treatment sys-tems which have wet desulfurizationsystems but only to the extent suchsystems generate an increased effluentvolume.



391


§ 420.14 New source performancestandards (NSPS).

The discharge of wastewater pollut-ants from any new source subject tothis subpart shall not exceed the stand-ards set forth below.


SUBPART A


New source performancestandards



secutive days


TSS ........................................ 0.172 0.0894O&G ....................................... 0.00638 ......................Ammonia-N ............................ 0.0543 0.0160Cyanide .................................. 0.00638 0.00351Phenols (4AAP) ..................... 0.0000638 0.0000319Benzene ................................. 0.0000319 ......................Naphthalene ........................... 0.0000319 ......................Benzo(a)pyrene ...................... 0.0000319 ......................pH ........................................... (1) (1)


(1) Increased loadings, not to exceed16 percent of the above standards, areallowed for by-product coke plantswhich have wet desulfurization sys-tems but only to the extent such sys-tems generate an increased effluentvolume.

(2) Increased loadings, not to exceed39 percent of the above standards, areallowed for by-product coke plantswhich include indirect ammonia recov-ery systems but only to the extentsuch systems generate an increased ef-fluent volume.


SUBPART A





secutive days


TSS ........................................ 0.192 0.0993O&G ....................................... 0.00709 ......................Ammonia-N ............................ 0.0603 0.0177Cyanide .................................. 0.00709 0.00390Phenols (4AAP) ..................... 0.0000709 0.0000355Benzene ................................. 0.0000355 ......................Naphthalene ........................... 0.0000355 ......................Benzo(a)pyrene ...................... 0.0000355 ......................

SUBPART A—Continued





secutive days

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





§ 420.15 Pretreatment standards forexisting sources (PSES).

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.


SUBPART A


Pretreatment standardsfor existing sources

Maximumfor any 1

day



Ammonia-N .................................... 0.0645 0.0322Cyanide .......................................... 0.0172 0.00859Phenols (4AAP) ............................. 0.0430 0.0215

(1) Increased loadings, not to exceed24 percent of the above standards, areallowed for by-product coke plants


392

40 CFR Ch. I (7–1–98 Edition)§ 420.16

which have wet desulfurization sys-tems but only to the extent such sys-tems generate an increased effluentvolume.



SUBPART A



Maximumfor any 1

day






(c) Beehive cokemaking [Reserved].

§ 420.16 Pretreatment standards fornew sources (PSNS).

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.


SUBPART A


Pretreatment standardsfor new sources

Maximumfor any 1

day







SUBPART A



Maximumfor any 1

day





(2) Increased loadings, not to exceed50 percent of the above standards, areallowed for by-product coke plantswhich include indirect ammonia recov-ery systems but only to the extent


393


such systems generate an increased ef-fluent volume.

(c) Beehive cokemaking [Reserved].

§ 420.17 Effluent limitations represent-ing the degree of effluent reductionattainable by the application of thebest conventional technology (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.


SUBPART A


BCT effluent limitations

Maximumfor any 1

day



TSS ................................................ 0.253 0.131O&G ............................................... 0.0327 0.0109pH ................................................... (1) (1)





SUBPART A



Maximumfor any 1

day



TSS ................................................ 0.270 0.140O&G ............................................... 0.0348 0.0116pH ................................................... (1) (1)





Subpart B—Sintering Subcategory§ 420.20 Applicability; description of

the sintering subcategory.The provisions of this subpart are ap-

plicable to discharges and to the intro-duction of pollutants into publiclyowned treatment works resulting fromsintering operations conducted by theheating of iron bearing wastes (millscale and dust from blast furnaces andsteelmaking furnaces) together withfine iron ore, limestone, and coke finesin an ignition furnace to produce anagglomerate for charging to the blastfurnace.

§ 420.21 [Reserved]


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


394

40 CFR Ch. I (7–1–98 Edition)§ 420.23

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

SUBPART B



Maximumfor any 1

day



TSS ................................................ 0.0751 0.0250O&G ............................................... 0.0150 0.00501pH ................................................... (1) (1)




SUBPART B



Maximumfor any 1

day


secutive days


Ammonia-N1 ............................... 0.0150 0.00501Cyanide 1 .................................... 0.00300 0.00150Phenols (4AAP)1 ........................ 0.000100 0.0000501TRC 1 .......................................... 0.000250 ......................Lead ........................................... 0.000451 0.000150Zinc ............................................ 0.000676 0.000225

1 The limitations for ammonia-N, cyanide, phenols (4AAP),and TRC shall be applicable only when sintering wastewatersare treated with ironmaking wastewaters.

[47 FR 23284, May 27, 1982, as amended at 49FR 21029, May 17, 1984]


The discharge of wastewater pollut-ants from any new source subject to

this subpart shall not exceed the stand-ards set forth below.

SUBPART B

Pollutant of pollutant property


Maximumfor any 1

day


secutive days


TSS ............................................ 0.0200 0.00751O&G ........................................... 0.00501 ......................Ammonia-N 1 .............................. 0.0150 0.00501Cyanide 1 .................................... 0.00100 0.000501Phenols(4AAP)1 ......................... 0.000100 0.0000501TRC 1 .......................................... 0.000250 ......................Lead ........................................... 0.000451 0.000150Zinc ............................................ 0.000676 0.000225pH ............................................... (2) (2)

1 The standards for ammonia-N, cyanide, phenols (4AAP),and TRC shall be applicable only when sintering wastewatersare treated with ironmaking wastewaters.





SUBPART B



Maximumfor any 1

day


secutive days


Ammonia-N 1 .............................. 0.0150 0.00501Cyanide 1 .................................... 0.00300 0.00150Phenols (4AAP)1 ........................ 0.000100 0.0000501Lead ........................................... 0.000451 0.000150Zinc ............................................ 0.000676 0.000225

1 The standards for ammonia-N, cyanide, and phenols(4AAP), shall be applicable only when sintering wastewatersare treated with ironmaking wastewaters.



395




SUBPART B



Maximumfor any 1

day


secutive days


Ammonia-N 1 .............................. 0.0150 0.00501Cyanide 1 .................................... 0.00100 0.000501Phenols (4AAP) 1 ....................... 0.000100 0.0000501Lead ........................................... 0.000451 0.000150Zinc ............................................ 0.000676 0.000225

1 The standards for ammonia-N, cyanide, and phenols(4AAP) shall be applicable only when sintering wastewatersare treated with ironmaking wastewaters.



Subpart C—IronmakingSubcategory

§ 420.30 Applicability; description ofthe ironmaking subcategory.

The provisions of this subpart are ap-plicable to discharges and to the intro-duction of pollutants into publiclyowned treatment works resulting fromironmaking operations in which ironore is reduced to molten iron in a blastfurnace.

§ 420.31 Specialized definitions.

(a) The term ferromanganese blast fur-nace means those blast furnaces whichproduce molten iron containing morethan fifty percent manganese.

(b) The term iron blast furnace meansall blast furnaces exceptferromanganese blast furnaces.

(c) The term existing indirect discharg-ers means only those two iron blast fur-nace operations with discharges to pub-

licly owned treatment works prior toMay 27, 1982.




(a) Iron blast furnace.

SUBPART C



Maximumfor any 1

day



TSS ................................................ 0.0782 0.0260Ammonia-N .................................... 0.161 0.0537Cyanide .......................................... 0.0234 0.00782Phenols (4AAP) ............................. 0.00626 0.00210pH ................................................... (1) (1)


(b) Ferromanganese blast furnace.

SUBPART C



Maximumfor any 1

day



TSS ................................................ 0.313 0.104Ammonia-N .................................... 1.29 0.429Cyanide .......................................... 0.469 0.156Phenols (4AAP) ............................. 0.0624 0.0208pH ................................................... (1) (1)


[47 FR 23284, May 27, 1982; 47 FR 41739, Sept.22, 1982]


396

40 CFR Ch. I (7–1–98 Edition)§ 420.33




SUBPART C





secutive days


Ammonia-N ............................ 0.00876 0.00292Cyanide .................................. 0.00175 0.000876Phenols (4AAP) ..................... 0.0000584 0.0000292TRC 1 ...................................... 0.000146 ......................Lead ....................................... 0.000263 0.0000876Zinc ........................................ 0.000394 0.000131

1 The limitation for TRC shall be applicable only whenchlorination of ironmaking wastewaters is practiced.

(b) Ferromanganese blast furnace [Re-served].

[47 FR 23284, May 27, 1982; 47 FR 41739, Sept.22, 1982, as amended at 49 FR 21030, May 17,1984]




SUBPART C





secutive days

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

TSS ........................................ 0.0117 0.00438

SUBPART C—Continued





secutive days

O&G ....................................... 0.00292 ......................Ammonia-N ............................ 0.00876 0.00292Cyanide .................................. 0.000584 0.000292Phenols (4AAP) ..................... 0.0000584 0.0000292TRC 1 ...................................... 0.000146 ......................Lead ....................................... 0.000263 0.0000876Zinc ........................................ 0.000394 0.000131pH ........................................... (2 ) (2)

1 The standards for TRC shall be applicable only whenchlorination of ironmaking wastewaters is practiced.


(b) Ferromanganese blast furnace. [Re-served]





SUBPART C


Pretreatment standards forexisting sources



secutive days

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

Ammonia-N ............................ 0.00876 0.00292Cyanide .................................. 0.00175 0.000876Phenols (4AAP) ..................... 0.0000584 0.0000292Lead ....................................... 0.000263 0.0000876Zinc ........................................ 0.000394 0.000131


(c) Existing indirect dischargers.


397


SUBPART C





secutive days







SUBPART C


Pretreatment standards fornew sources



secutive days






Subpart D—SteelmakingSubcategory

§ 420.40 Applicability; description ofthe steelmaking subcategory.

The provisions of this subpart are ap-plicable to discharges and to the intro-duction of pollutants into publiclyowned treatment works resulting fromsteelmaking operations conducted inbasic oxygen, open hearth, and electricarc furnaces.

§ 420.41 Specialized definitions.(a) The term basic oxygen furnace

steelmaking means the production ofsteel from molten iron, steel scrap,fluxes, and various combinations there-of, in refractory lined furnaces by add-ing oxygen.

(b) The term open hearth furnacesteelmaking means the production ofsteel from molten iron, steel scrap,fluxes, and various combinations there-of, in refractory lined fuel-fired fur-naces equipped with regenerativechambers to recover heat from the flueand combustion gases.

(c) The term electric arc furnacesteelmaking means the production ofsteel principally from steel scrap andfluxes in refractory lined furnaces bypassing an electric current through thescrap or steel bath.

(d) The term wet means thosesteelmaking air cleaning systems thatprimarily use water for furnace gascleaning.

(e) The term semi-wet means thosesteelmaking air cleaning systems thatuse water for the sole purpose of condi-tioning the temperature and humidityof furnace gases such that the gasesmay be cleaned in dry air pollutioncontrol systems.

(f) The term open combustion meansthose basic oxygen furnacesteelmaking wet air cleaning systemswhich are designed to allow excess airto enter the air pollution control sys-tem for the purpose of combusting thecarbon monoxide in furnace gases.

(g) The term suppressed combustionmeans those basic oxygen furnace


398

40 CFR Ch. I (7–1–98 Edition)§ 420.42

steelmaking wet air cleaning systemswhich are designed to limit or suppressthe combustion of carbon monoxide infurnace gases by restricting theamount of excess air entering the airpollution control system.



(a) Basic oxygen furnace steelmaking—semi-wet; and electric arc furnacesteelmaking—semi-wet. No discharge ofprocess wastewater pollutants to navi-gable waters.

(b) Basic oxygen furnace steelmaking—wet-suppressed combustion.

SUBPART D

Pollutant or pullutant property


Maximumfor any 1

day


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

TSS ................................................ 0.0312 0.0104pH ................................................... (1) (1)

1 Within the range of 6.0 to 9.0

(c) Basic oxygen furnace steelmaking—wet open combustion; open hearth fur-nace steelmaking—wet; and electric arcfurnace steelmaking—wet.

SUBPART D



Maximumfor any 1

day



TSS ................................................ 0.0687 0.0229pH ................................................... (1) (1)






SUBPART D



Maximumfor any 1

day


secutive days


Lead ........................................... 0.000188 0.0000626Zinc ............................................ 0.000282 0.0000939


SUBPART D



Maximumfor any 1

day



Lead ............................................... 0.000413 0.000138Zinc ................................................ 0.000620 0.000207



(a) Basic oxygen furnace steelmaking—semi-wet; and electric arc furnacesteelmaking—semi-wet. [Reserved]


399



SUBPART D



Maximumfor any 1

day


secutive days


TSS ............................................ 0.0146 0.00522Lead ........................................... 0.000188 0.0000626Zinc ............................................ 0.000282 0.0000939pH ............................................... (1) (1)


(c) Basic oxygen furnace steelmaking—wet open combustion; and electric arc fur-nace steelmaking—wet.

SUBPART D


New source perform-ance standards

Maximumfor any 1

day



TSS ................................................ 0.0321 0.0115Lead ............................................... 0.000413 0.000138Zinc ................................................ 0.000620 0.000207pH ................................................... (1) (1)


(d) Open hearth furnace steelmaking—wet. [Reserved]





SUBPART D



Maximumfor any 1

day


secutive days


Lead ........................................... 0.000188 0.0000626Zinc ............................................ 0.000282 0.0000939


SUBPART D



Maximumfor any 1

day



Lead ............................................... 0.000413 0.000138Zinc ................................................ 0.000620 0.000207





SUBPART D



Maximumfor any 1

day


secutive days


Lead ........................................... 0.000188 0.0000626Zinc ............................................ 0.000282 0.0000939


400

40 CFR Ch. I (7–1–98 Edition)§ 420.47

(c) Basic oxygen furnace steelmaking—wet—open combustion; electric arc fur-nace steelmaking—wet.

SUBPART D



Maximumfor any 1

day



Lead ............................................... 0.000413 0.000138Zinc ................................................ 0.000620 0.000207



§ 420.47 Effluent limitations represent-ing the degree of effluent reductionattainable by the application of thebest conventional control tech-nology (BCT).


(b) Basic oxygen furnace steelmaking—wet-suppressed combustion. [Reserved]

(c) Basic oxygen furnace steelmaking—wet—open combustion; electric arc fur-nace steelmaking—wet. [Reserved]


Subpart E—Vacuum DegassingSubcategory

§ 420.50 Applicability; description ofthe vacuum degassing subcategory.

The provisions of this subpart are ap-plicable to discharges and to the intro-duction of pollutants into publiclyowned treatment works resulting fromvacuum degassing operations con-ducted by applying a vacuum to moltensteel.




SUBPART E



Maximumfor any 1

day



TSS ................................................ 0.0156 0.00521pH ................................................... (1) (1)




SUBPART E





secutive days


Lead ....................................... 0.0000939 0.0000313Zinc ........................................ 0.000141 0.0000469


The discharge of wastewater pollut-ants from any new source subject to


401


this subpart shall not exceed the valuesset forth below.

SUBPART E





secutive days


TSS ........................................ 0.00730 0.00261Lead ....................................... 0.0000939 0.0000313Zinc ........................................ 0.000141 0.0000469pH ........................................... (1) (1)




SUBPART E





secutive days


Lead ....................................... 0.0000939 0.0000313Zinc ........................................ 0.000141 0.0000469


Any new source subject to this sub-part which introduces pollutants into apublicly owned treatment works mustcomply with 40 CFR part 403 andachieve the following pretreatmentstandards for new sources.

SUBPART E





secutive days


Lead ....................................... 0.0000939 0.0000313Zinc ........................................ 0.000141 0.0000469


Subpart F—Continuous CastingSubcategory

§ 420.60 Applicability; description ofthe continuous casting subcategory.

The provisions of this subpart are ap-plicable to discharges and to the intro-duction of pollutants into publiclyowned treatment works resulting fromthe continous casting of molten steelinto intermediate or semi-finishedsteel products through water cooledmolds.




SUBPART F



Maximumfor any 1

day



TSS ................................................ 0.0780 0.0260Oil & Grease .................................. 0.0234 0.0078pH ................................................... (1) (1)



402

40 CFR Ch. I (7–1–98 Edition)§ 420.63



SUBPART F





secutive days


Lead ....................................... 0.0000939 0.0000313Zinc ........................................ 0.000141 0.0000469



SUBPART F





secutive days


TSS ........................................ 0.00730 0.00261O&G ....................................... 0.00313 0.00104Lead ....................................... 0.0000939 0.0000313Zinc ........................................ 0.000141 0.0000469pH ........................................... (1) (1)




SUBPART F





secutive days


Lead ....................................... 0.0000939 0.0000313Zinc ........................................ 0.000141 0.0000469


Any new source subject to this sub-part which introduces pollutants into apublicly owned treatment works mustcomply with 40 CFR part 403 andachieve the following pretreatmentstandards for new sources.

SUBPART F





secutive days


Lead ....................................... 0.0000939 0.0000313Zinc ........................................ 0.000141 0.0000469


Subpart G—Hot FormingSubcategory

§ 420.70 Applicability; description ofthe hot forming subcategory.

The provisions of this subpart are ap-plicable to discharges and to the intro-duction of pollutants into publiclyowned treatment works resulting fromhot forming operations conducted inprimary, section, flat, and pipe andtube mills.

§ 420.71 Specialized definitions.(a) The term hot forming means those

steel operations in which solidified,heated steel is shaped by rolls.

(b) The term primary mill means thosesteel hot forming operations that re-duce ingots to blooms or slabs by pass-ing the ingots between rotating steelrolls. The first hot forming operation


403


performed on solidified steel after it isremoved from the ingot molds is car-ried out on a ‘‘primary mill’’.

(c) The term section mill means thosesteel hot forming operations thatproduce a variety of finished and semi-finished steel products other than theproducts of those mills specified belowin paragraphs (d), (e), (g), and (h) ofthis section.

(d) The term flat mill means thosesteel hot forming operations that re-duce heated slabs to plates, strip andsheet, or skelp.

(e) The term pipe and tube mill meansthose steel hot forming operations thatproduce butt welded or seamless tubu-lar steel products.

(f) The term scarfing means thosesteel surface conditioning operations inwhich flames generated by the combus-tion of oxygen and fuel are used to re-move surface metal imperfections fromslabs, billets, or blooms.

(g) The term plate mill means thosesteel hot forming operations thatproduce flat hot-rolled products whichare (1) between 8 and 48 inches wide andover 0.23 inches thick; or (2) greaterthan 48 inches wide and over 0.18 inchesthick.

(h) The term hot strip and sheet millmeans those steel hot forming oper-ations that produce flat hot-rolledproducts other than plates.

(i) The term specialty steel meansthose steel products containingalloying elements which are added toenhance the properties of the steelproduct when individual alloying ele-ments (e.g., aluminum, chromium, co-balt, columbium, molybdenum, nickel,titanium, tungsten, vanadium, zir-conium) exceed 3% or the total of allalloying elements exceed 5%.

(j) The term carbon steel means thosesteel products other than specialtysteel products.

(k) The term carbon hot forming oper-ation (or ‘‘carbon’’) means those hotforming operations which produce amajority, on a tonnage basis, of carbonsteel products.

(l) The term specialty hot forming op-eration (or ‘‘specialty’’) applies to allhot forming operations other than‘‘carbon hot forming operations.’’



(a) Primary mills, carbon and spe-cialty.

(1) Without scarfing.

SUBPART G



Maximumfor any 1

day



TSS ................................................ 0.150 0.0561O&G ............................................... 0.0374 ..................pH ................................................... (1) (1)


(2) With scarfing.

SUBPART G



Maximumfor any 1

day



TSS ................................................ 0.221 0.0830O&G ............................................... 0.0553 ..................pH ................................................... (1) (1)


(b) Section mills.(1) Carbon.


404

40 CFR Ch. I (7–1–98 Edition)§ 420.73

SUBPART G



Maximumfor any 1

day



TSS ................................................ 0.357 0.134O&G ............................................... 0.0894 ..................pH ................................................... (1) (1)


(2) Specialty.

SUBPART G



Maximumfor any 1

day



TSS ................................................ 0.224 0.0841O&G ............................................... 0.0561 ..................pH ................................................... (1) (1)


(c) Flat mills.(1) Hot strip and sheet mills, carbon

and specialty.

SUBPART G



Maximumfor any 1

day



TSS ................................................ 0.427 0.160O&G ............................................... 0.107 ..................pH ................................................... (1) (1)


(2) Carbon plate mills.

SUBPART G



Maximumfor any 1

day



TSS ................................................ 0.227 0.0851O&G ............................................... 0.0568 ..................pH ................................................... (1) (1)


(3) Specialty plate mills.

SUBPART G



Maximumfor any 1

day



TSS ................................................ 0.100 0.0376O&G ............................................... 0.0250 (1)pH ................................................... (1) (1)


(d) Pipe and tube mills, carbon andspecialty.

SUBPART G



Maximumfor any 1

day



TSS ................................................ 0.212 0.0795O&G ............................................... 0.0530 ..................pH ................................................... (1) (1)



The Agency has determined thatthere are not significant quantities oftoxic pollutants in hot formingwastewaters after compliance with ap-plicable BPT limitations. Accordingly,since the BPT level of treatment pro-vides adequate control, the Agency is


405


not promulgating more stringent BATlimitations.





SUBPART G



Maximumfor any 1

day



TSS ................................................ 0.0150 0.00563O&G ............................................... 0.00373 ..................pH ................................................... (1 ) (1)


(2) With scarfing.

SUBPART G



Maximumfor any 1

day



TSS ................................................ 0.0234 0.00876O&G ............................................... 0.00584 ..................pH ................................................... (1 ) (1)



SUBPART G



Maximumfor any 1

day



TSS ................................................ 0.0334 0.0125O&G ............................................... 0.00834 ..................

SUBPART G—Continued



Maximumfor any 1

day


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


(2) Specialty.

SUBPART G



Maximumfor any 1

day



TSS ................................................ 0.0217 0.00813O&G ............................................... 0.00542 ..................pH ................................................... (1 ) (1)



and specialty.

SUBPART G



Maximumfor any 1

day


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

TSS ................................................ 0.0435 0.0163O&G ............................................... 0.0109 ..................pH ................................................... (1 ) (1)



SUBPART G



Maximumfor any 1

day



TSS ................................................ 0.0234 0.00876O&G ............................................... 0.00584 ..................


406

40 CFR Ch. I (7–1–98 Edition)§ 420.75




Maximumfor any 1

day


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



SUBPART G



Maximumfor any 1

day



TSS ................................................ 0.0100 0.00375O&G ............................................... 0.00250 ..................pH ................................................... (1 ) (1)



SUBPART G



Maximumfor any 1

day



TSS ................................................ 0.0369 0.0138O&G ............................................... 0.00917 ..................pH ................................................... (1 ) (1)



Any existing source subject to thissubpart which introduces pollutantsinto a publicly owned treatment worksmust comply with 40 CFR part 403.


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





SUBPART G



Maximumfor any 1

day



TSS ................................................ 0.150 0.0561O&G ............................................... 0.0374 ..................pH ................................................... (1 ) (1)


(2) With scarfing.

SUBPART G



Maximumfor any 1

day



TSS ................................................ 0.221 0.0830O&G ............................................... 0.0553 ..................pH ................................................... (1 ) (1)



SUBPART G



Maximumfor any 1

day



TSS ................................................ 0.357 0.134


407





Maximumfor any 1

day


O&G ............................................... 0.0894 ..................pH ................................................... (1 ) (1)


(2) Specialty.

SUBPART G



Maximumfor any 1

day



TSS ................................................ 0.224 0.0841O&G ............................................... 0.0561 ..................pH ................................................... (1 ) (1)



and specialty.

SUBPART G



Maximumfor any 1

day



TSS ................................................ 0.427 0.160O&G ............................................... 0.107 ..................pH ................................................... (1 ) (1)



SUBPART G



Maximumfor any 1

day



TSS .............................................. 0.227 0.0851O&G ............................................. 0.0568 ..................pH ................................................. (1 ) (1)



SUBPART G



Maximumfor any 1

day



TSS .............................................. 0.100 0.0376O&G ............................................. 0.0250 ..................pH ................................................. (1 ) (1)



SUBPART G



Maximumfor any 1

day



TSS .............................................. 0.212 0.0795O&G ............................................. 0.0530 ..................pH ................................................. (1 ) (1)



Subpart H—Salt Bath DescalingSubcategory

§ 420.80 Applicability; description ofthe salt bath descaling subcategory.

The provisions of this subpart are ap-plicable to discharges and to the intro-duction of pollutants into publiclyowned treatment works resulting fromoxidizing and reducing salt bath descal-ing operations.

§ 420.81 Specialized definitions.(a) The term salt bath descaling, oxi-

dizing means the removal of scale fromsemi-finished steel products by the ac-tion of molten salt baths other thanthose containing sodium hydride.

(b) The term salt bath descaling, re-ducing means the removal of scale fromsemi-finished steel products by the ac-tion of molten salt baths containingsodium hydride.


408

40 CFR Ch. I (7–1–98 Edition)§ 420.82

(c) The term batch, sheet and platemeans those descaling operations thatremove surface scale from sheet andplate products in batch processes.

(d) The term batch, rod and wiremeans those descaling operations thatremove surface scale from rod and wireproducts in batch processes.

(e) The term batch, pipe and tubemeans those descaling operations thatremove surface scale from pipe andtube products in batch processes.

(f) The term continuous means thosedescaling operations that remove sur-face scale from the sheet or wire prod-ucts in continuous processes.

(g) The term batch means those de-scaling operations in which the prod-ucts are processed in discrete batches.



(a) Salt bath descaling, oxidizing.(1) Batch, sheet and plate.

SUBPART H



Maximumfor any 1

day



TSS ................................................ 0.204 0.0876Chromium ....................................... 0.00292 0.00117Nickel ............................................. 0.00263 0.000876pH ................................................... (1 ) (1)


(2) Batch, rod and wire.

SUBPART H



Maximumfor any 1

day





(3) Batch, pipe and tube.

SUBPART H



Maximumfor any 1

day





(4) Continuous.

SUBPART H



Maximumfor any 1

day





(b) Salt bath descaling, reducing.(1) Batch.


409


SUBPART H



Maximumfor any 1

day



TSS ................................................ 0.0949 0.0407Cyanide .......................................... 0.00102 0.000339Chromium ....................................... 0.00136 0.000542Nickel ............................................. 0.00122 0.000407pH ................................................... (1 ) (1)


(2) Continuous.

SUBPART H



Maximumfor any 1

day





[47 FR 23284, May 27, 1982; 47 FR 41739, Sept.22, 1982]




SUBPART H



Maximumfor any 1

day



Chromium ....................................... 0.00292 0.00117Nickel ............................................. 0.00263 0.000876


SUBPART H



Maximumfor any 1

day



Chromium ....................................... 0.00175 0.000701Nickel ............................................. 0.00158 0.000526


SUBPART H



Maximumfor any 1

day



Chromium ....................................... 0.00709 0.00284Nickel ............................................. 0.00638 0.00213

(4) Continuous.

SUBPART H



Maximumfor any 1

day



Chromium ....................................... 0.00138 0.000551Nickel ............................................. 0.00124 0.000413



410

40 CFR Ch. I (7–1–98 Edition)§ 420.84

SUBPART H



Maximumfor any 1

day



Cyanide .......................................... 0.00102 0.000339Chromium ....................................... 0.00136 0.000542Nickel ............................................. 0.00122 0.000407

(2) Continuous.

SUBPART H



Maximumfor any 1

day







SUBPART H



Maximumfor any 1

day






SUBPART H



Maximumfor any 1

day






SUBPART H



Maximumfor any 1

day





(4) Continuous.

SUBPART H



Maximumfor any 1

day







411


SUBPART H



Maximumfor any 1

day





(2) Continuous.

SUBPART H



Maximumfor any 1

day








SUBPART H



Maximumfor any 1

day



Chromium ....................................... 0.00292 0.00117

SUBPART H—Continued



Maximumfor any 1

day


Nickel ............................................. 0.00263 0.000876


SUBPART H



Maximumfor any 1

day



Chromium ....................................... 0.00175 0.000701Nickel ............................................. 0.00158 0.000526


SUBPART H



Maximumfor any 1

day



Chromium ....................................... 0.00709 0.00284Nickel ............................................. 0.00638 0.00213

(4) Continuous.

SUBPART H



Maximumfor any 1

day



Chromium ....................................... 0.00138 0.000551Nickel ............................................. 0.00124 0.000413



412

40 CFR Ch. I (7–1–98 Edition)§ 420.86

SUBPART H



Maximumfor any 1

day




(2) Continuous.

SUBPART H



Maximumfor any 1

day


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


[47 FR 23284, May 27, 1982; 47 FR 41739, Sept.22, 1982]




SUBPART H



Maximumfor any 1

day



Chromium ....................................... 0.00292 0.00117Nickel ............................................. 0.00263 0.000876


SUBPART H



Maximumfor any 1

day



Chromium ....................................... 0.00175 0.000701Nickel ............................................. 0.00158 0.000526


SUBPART H



Maximumfor any 1

day



Chromium ....................................... 0.00709 0.00284Nickel ............................................. 0.00638 0.00213

(4) Continuous.

SUBPART H



Maximumfor any 1

day



Chromium ....................................... 0.00138 0.000551Nickel ............................................. 0.00124 0.000413


SUBPART H


Pretreatment stand-ards for new sources

Maximumfor any 1

day

Averageof daily

values for30 con-secutive

days


Cyanide .............................................. 0.00102 0.000339Chromium ........................................... 0.00136 0.000542


413


SUBPART H—Continued



Maximumfor any 1

day

Averageof daily


days

Nickel ................................................. 0.00122 0.000407

(2) Continuous.

SUBPART H



Maximumfor any 1

day

Averageof daily


days


Cyanide .............................................. 0.00569 0.00190Chromium ........................................... 0.00759 0.00304Nickel ................................................. 0.00683 0.00228





SUBPART H


BCT effluent limita-tions

Maximumfor any 1

day

Averageof daily


days


TSS .................................................... 0.204 0.0876pH ....................................................... (1 ) (1)



SUBPART H



Maximumfor any 1

day

Averageof daily


days


TSS .................................................... 0.123 0.0526pH ....................................................... (1 ) (1)



SUBPART H



Maximumfor any 1

day

Averageof daily


days


TSS .................................................... 0.496 0.213pH ....................................................... (1 ) (1)


(4) Continuous.


414

40 CFR Ch. I (7–1–98 Edition)§ 420.90

SUBPART H



Maximumfor any 1

day

Averageof daily


days


TSS .................................................... 0.0964 0.0413pH ....................................................... (1 ) (1)



SUBPART H



Maximumfor any 1

day

Averageof daily


days


TSS .................................................... 0.0949 0.0407pH ....................................................... (1 ) (1)


(2) Continuous.

SUBPART H



Maximumfor any 1

day

Averageof daily


days


TSS .................................................... 0.532 0.228pH ....................................................... (1 ) (1)


[47 FR 23284, May 27, 1982; 47 FR 41739, Sept.22, 1982]

Subpart I—Acid PicklingSubcategory

§ 420.90 Applicability; description ofthe acid pickling subcategory.

The provisions of this subpart are ap-plicable to discharges and to the intro-

duction of pollutants into publiclyowned treatment works resulting fromsulfuric acid, hydrochloric acid, orcombination acid pickling operations.

§ 420.91 Specialized definitions.(a) The term sulfuric acid pickling

means those operations in which steelproducts are immersed in sulfuric acidsolutions to chemically remove oxidesand scale, and those rinsing operationsassociated with such immersions.

(b) The term hydrochloric acid picklingmeans those operations in which steelproducts are immersed in hydrochloricacid solutions to chemically removeoxides and scale, and those rinsing op-erations associated with such immer-sions.

(c) The term combination acid picklingmeans those operations in which steelproducts are immersed in solutions ofmore than one acid to chemically re-move scale and oxides, and those rins-ing steps associated with such immer-sions.

(d) The term fume scrubber meansthose pollution control devices used toremove and clean fumes originating inpickling operations.

(e) The term batch means those pick-ling operations which process steelproducts such as coiled wire, rods, andtubes in discrete batches or bundles.

(f) The term continuous means thosepickling operations which process steelproducts other than in discrete batchesor bundles.

(g) The term acid recovery meansthose sulfuric acid pickling operationsthat include processes for recoveringthe unreacted acid from spent picklingacid solutions.

(h) The term acid regeneration meansthose hydrochloric acid pickling oper-ations that include processes for regen-erating acid from spent pickling acidsolutions.

(i) The term neutralization meansthose acid pickling operations that donot include acid recovery or acid re-generation processes.

(j) The term spent acid solution (orspent pickle liquor) means those solu-tions of steel pickling acids which havebeen used in the pickling process andare discharged or removed therefrom.

(k) The term rod, wire and coil meansthose acid pickling operations that


415


pickle rod, wire or coiled rod and wireproducts.

(l) The term bar, billet and bloommeans those acid pickling operationsthat pickle bar, billet or bloom prod-ucts.

(m) The term strip, sheet and platemeans those acid pickling operationsthat pickle strip, sheet or plate prod-ucts.

(n) The term pipe, tube and othermeans those acid pickling operationsthat pickle pipes, tubes or any steelproduct other than those included inparagraphs (k), (l) and (m) of this sec-tion.



(a) Sulfuric acid pickling (spent acidsolutions and rinse waters).

(1) Rod, wire and coil.

SUBPART I



Maximumfor any 1

day



TSS ................................................ 0.0818 0.0350O&G 1 ............................................. 0.0350 0.0117Lead ............................................... 0.000526 0.000175Zinc ................................................ 0.000701 0.000234pH ................................................... (2 ) (2)

1 The limitations for oil and grease shall be applicable whenacid pickling wastewaters are treated with cold rollingwastewaters.


(2) Bar, billet and bloom.

SUBPART I





secutive days


TSS ........................................ 0.0263 0.0113O&G 1 ..................................... 0.0113 0.00375Lead ....................................... 0.000169 0.0000563Zinc ........................................ 0.000225 0.0000751pH ........................................... (2 ) (2)



(3) Strip, sheet and plate.

SUBPART I



Maximumfor any 1

day



TSS ................................................ 0.0526 0.0225O&G1 ............................................. 0.0225 0.00751Lead ............................................... 0.000338 0.000113Zinc ................................................ 0.000451 0.000150pH ................................................... (2 ) (2)



(4) Pipe, tube and other products.

SUBPART I



Maximumfor any 1

day



TSS ................................................ 0.146 0.0626O&G1 ............................................. 0.0626 0.0209Lead ............................................... 0.000939 0.000313Zinc ................................................ 0.00125 0.000417pH ................................................... (2 ) (2)




416

40 CFR Ch. I (7–1–98 Edition)§ 420.92

(5) Fume scrubbers.

SUBPART I



Maximumfor any 1

day


Kilograms per day




The above limitations shall be applica-ble to each fume scrubber associatedwith a sulfuric acid pickling operation.

(b) Hydrochloric acid pickling (spentacid solutions and rinse waters).


SUBPART I



Maximumfor any 1

day







SUBPART I



Maximumfor any 1

day



TSS ................................................ 0.0818 0.0350O&G 1 ............................................. 0.0350 0.0117Lead ............................................... 0.000526 0.000175Zinc ................................................ 0.000701 0.000234

SUBPART I—Continued



Maximumfor any 1

day


pH ................................................... (2 ) (2)




SUBPART I



Maximumfor any 1

day






(4) Fume scrubbers.

SUBPART I



Maximumfor any 1

day


Kilograms per day




The above limitations shall be applica-ble to each fume scrubber associatedwith a hydrochloric acid pickling oper-ation.

(5) Acid regeneration (absorber ventscrubber).


417


SUBPART I



Maximumfor any 1

day


Kilograms per day




The above limitations shall be applica-ble to the absorber vent scrubberwastewater associated with hydro-chloric acid regeneration plants.

(c) Combination acid pickling (spentacid solution and rinse waters).

(1) Rod, Wire, and Coil.

SUBPART I



Maximumfor any 1

day



TSS ................................................ 0.149 0.0638O&G 1 ............................................. 0.0638 0.0213Chromium ....................................... 0.00213 0.000852Nickel ............................................. 0.00192 0.000638pH ................................................... (2 ) (2)



(2) Bar, billet, and bloom.

SUBPART I



Maximumfor any 1

day



TSS ................................................ 0.0672 0.0288O&G 1 ............................................. 0.0288 0.00960Chromium ....................................... 0.000960 0.000384




Maximumfor any 1

day


Nickel ............................................. 0.000864 0.000288pH ................................................... (2 ) (2)



(3) Strip, sheet, and plate—continu-ous.

SUBPART I



Maximumfor any 1

day






(4) Strip, sheet and plate—batch.

SUBPART I



Maximumfor any 1

day






(5) Pipe, tube, and other products.


418

40 CFR Ch. I (7–1–98 Edition)§ 420.93

SUBPART I



Maximumfor any 1

day



TSS ................................................ 0.225 0.0964O&G1 ............................................. 0.0964 0.0322Chromium ....................................... 0.00322 0.00129Nickel ............................................. 0.00289 0.000964pH ................................................... (2 ) (2)



(6) Fume scrubbers.

SUBPART I



Maximumfor any 1

day


Kilograms per day




The above limitations shall be applica-ble to each fume scrubber associatedwith a combination acid pickling oper-ation.






SUBPART I



Maximumfor any 1

day



Lead ............................................... 0.000526 0.000175Zinc ................................................ 0.000701 0.000234


SUBPART I



Maximumfor any 1

day


secutive days


Lead ........................................... 0.000169 0.0000563Zinc ............................................ 0.000225 0.0000751


SUBPART I



Maximumfor any 1

day


secutive days


Lead ........................................... 0.000338 0.000113Zinc ............................................ 0.000451 0.000150


SUBPART I



Maximumfor any 1

day



Lead ............................................... 0.000939 0.000313Zinc ................................................ 0.00125 0.000417

(5) Fume scrubbers.


419


SUBPART I



Maximumfor any 1

day


Kilograms per day

Lead ............................................... 0.0368 0.0123Zinc ................................................ 0.0491 0.0164




SUBPART I



Maximumfor any 1

day



Lead ............................................... 0.000920 0.000307Zinc ................................................ 0.00123 0.000409


SUBPART I



Maximumfor any 1

day



Lead ............................................... 0.000526 0.000175Zinc ................................................ 0.000701 0.000234


SUBPART I


BAT effuent limitations

Maximumfor any 1

day



Lead ............................................... 0.00192 0.000638Zinc ................................................ 0.00255 0.000851

(4) Fume scrubbers.

SUBPART I



Maximumfor any 1

day


Kilograms per day

Lead ............................................... 0.0368 0.0123Zinc ................................................ 0.0491 0.0164



SUBPART I



Maximumfor any 1

day


Kilograms per day

Lead ............................................... 0.245 0.0819Zinc ................................................ 0.327 0.109



(1) Rod, wire, and coil.


420

40 CFR Ch. I (7–1–98 Edition)§ 420.94

SUBPART I



Maximumfor any 1

day



Chromium ....................................... 0.00213 0.000852Nickel ............................................. 0.00192 0.000638


SUBPART I



Maximumfor any 1

day



Chromium ....................................... 0.000960 0.000384Nickel ............................................. 0.000864 0.000288


SUBPART I



Maximumfor any 1

day



Chromium ....................................... 0.00626 0.00250Nickel ............................................. 0.00563 0.00188

(4) Strip, sheet, and plate—batch.

SUBPART I



Maximumfor any 1

day



Chromium ....................................... 0.00192 0.000768Nickel ............................................. 0.00173 0.000576


SUBPART I



Maximumfor any 1

day



Chromium ....................................... 0.00322 0.00129Nickel ............................................. 0.00289 0.000964

(6) Fume scrubbers.

SUBPART I



Maximumfor any 1

day


Kilograms per day

Chromium ....................................... 0.0819 0.0327Nickel ............................................. 0.0735 0.0245


[47 FR 23284, May 27, 1982; 47 FR 41739, Sept.22, 1982, as amended at 49 FR 21031, May 17,1984; 49 FR 24726, June 15, 1984]





SUBPART I





secutive days

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

TSS ........................................ 0.0146 0.00626O&G* ...................................... 0.00626 0.00209Lead ....................................... 0.0000939 0.0000313Zinc ........................................ 0.000125 0.0000417


421







secutive days

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

*The limitations for oil and grease shall be applicable whenacid pickling wastewaters are treated with cold rollingwastewaters.



SUBPART I





secutive days


TSS ........................................ 0.00876 0.00376O&G* ...................................... 0.00376 0.00125Lead ....................................... 0.0000563 0.0000188Zinc ........................................ 0.0000751 0.0000250pH ........................................... (1 ) (1)

*The limitations for oil and grease shall be applicable whenacid pickling wastewaters are treated with cold rollingwastewaters.


(3) Strip, sheet, and plate.

SUBPART I





secutive days






SUBPART I


New source performancestandars



secutive days





(5) Fume scrubbers.

SUBPART I


New source perform-ance standars

Maximumfor any 1

day


Kilograms per day







SUBPART I





secutive days


TSS ........................................ 0.0175 0.00751O&G 1 ..................................... 0.00751 0.00250Lead ....................................... 0.000113 0.0000376Zinc ........................................ 0.000150 0.0000501


422

40 CFR Ch. I (7–1–98 Edition)§ 420.94






secutive days

pH ........................................... (2 ) (2)




SUBPART I





secutive days






SUBPART I





secutive days





(4) Fume scrubbers.

SUBPART I



Maximumfor any 1

day


Kilograms per day





(c) Combination acid pickling (spentacid solutions and rinse waters).


SUBPART I





secutive days


TSS ........................................ 0.0204 0.00876O&G 1 ..................................... 0.00876 0.00292Chromium ............................... 0.000292 0.000117Nickel ..................................... 0.000263 0.0000876pH ........................................... (2 ) (2)




SUBPART I





secutive days


TSS ........................................ 0.0117 0.00501O&G 1 ..................................... 0.00501 0.00167Chromium ............................... 0.000167 0.0000667Nickel ..................................... 0.000150 0.0000501


423







secutive days

pH ........................................... (2 ) (2)



(3) Strip, sheet and plate—continu-ous.

SUBPART I



Maximumfor any 1

day







SUBPART I



Maximumfor any 1

day


secutivedays


TSS ............................................ 0.0175 0.00751O&G 1 ......................................... 0.00751 0.00250Chromium ................................... 0.000250 0.000100Nickel ......................................... 0.000225 0.0000751pH ............................................... (2 ) (2)




SUBPART I



Maximumfor any 1

day


secutivedays


TSS ............................................ 0.0292 0.0125O&G1 ......................................... 0.0125 0.00418Chromium ................................... 0.000418 0.000167Nickel ......................................... 0.000376 0.000125pH ............................................... (2 ) (2)



(6) Fume scrubbers.

SUBPART I



Maximumfor any 1

day


Kilograms per day








(a) Sulfuric acid (spent acid solutionsand rinse waters).



424

40 CFR Ch. I (7–1–98 Edition)§ 420.95

SUBPART I



Maximumfor any 1

day


secutivedays


Lead ........................................... 0.000526 0.000175Zinc ............................................ 0.000701 0.000234


SUBPART I



Maximumfor any 1

day


secutivedays


Lead ........................................... 0.000169 0.0000563Zinc ............................................ 0.000225 0.0000751


SUBPART I



Maximumfor any 1

day


secutivedays


Lead ........................................... 0.000338 0.000113Zinc ............................................ 0.000451 0.000150


SUBPART I



Maximumfor any 1

day


secutivedays


Lead ........................................... 0.000939 0.000313Zinc ............................................ 0.00125 0.000417

(5) Fume scrubber.

SUBPART I



Maximumfor any 1

day


Kilograms per day

Lead ............................................. 0.0368 0.0123Zinc .............................................. 0.0491 0.0164

Note: The above limitations are applicable to each fumescrubber associated with sulfuric acid pickling operations.



SUBPART I



Maximumfor any 1

day


secutivedays


Lead ........................................... 0.000920 0.000307Zinc ............................................ 0.00123 0.000409


SUBPART I



Maximumfor any 1

day


secutivedays


Lead ........................................... 0.000526 0.000175Zinc ............................................ 0.000701 0.000234


SUBPART I



Maximumfor any 1

day


secutivedays


Lead ........................................... 0.00192 0.000638


425





Maximumfor any 1

day


secutivedays

Zinc ............................................ 0.00255 0.000851

(4) Fume scrubber.

SUBPART I



Maximumfor any 1

day


Kilograms per day

Lead ............................................. 0.0368 0.0123Zinc .............................................. 0.0491 0.0164

Note: The above limitations shall be applicable for eachfume scrubber associated with hydrochloric acid picklingoperations.


SUBPART I



Maximumfor any 1

day


secutivedays

Kilograms per day

Lead ........................................... 0.245 0.0819Zinc ............................................ 0.327 0.109

Note: The above limitations shall be applicable to the ab-sorber vent scrubber wastewater associated with hydrochloricacid regeneration plants.



SUBPART I



Maximumfor any 1

day


secutivedays


Chromium ................................... 0.00213 0.000852




Maximumfor any 1

day


secutivedays

Nickel ......................................... 0.00192 0.000638


SUBPART I



Maximumfor any 1

day


secutivedays


Chromium ................................... 0.000960 0.000384Nickel ......................................... 0.000864 0.000288


SUBPART I



Maximumfor any 1

day


secutivedays


Chromium ................................... 0.00626 0.00250Nickel ......................................... 0.00563 0.00188


SUBPART I



Maximumfor any 1

day


secutivedays


Chromium ................................... 0.00192 0.000768Nickel ......................................... 0.00173 0.000576



426

40 CFR Ch. I (7–1–98 Edition)§ 420.96

SUBPART I



Maximumfor any 1

day


secutivedays


Chromium ................................... 0.00322 0.00129Nickel ......................................... 0.00289 0.000964

(6) Fume scrubber.

SUBPART I



Maximumfor any 1

day


secutivedays

Kilograms per day

Chromium ................................... 0.0819 0.0327Nickel ......................................... 0.0735 0.0245

Note: The above limitations shall be applicable to eachfume scrubber associated with a combination acid picklingoperation.





(1) Rod, wire, coil.

SUBPART I





secutive days


Lead ....................................... 0.0000939 0.0000313Zinc ........................................ 0.000125 0.0000417


SUBPART I





secutive days


Lead ....................................... 0.0000563 0.0000188Zinc ........................................ 0.0000751 0.0000250


SUBPART I





secutive days


Lead ....................................... 0.0000751 0.0000250Zinc ........................................ 0.000100 0.0000334

(4) Pipe, tube, other products.

SUBPART I





secutivedays


Lead ......................................... 0.000131 0.0000438Zinc .......................................... 0.000175 0.0000584

(5) Fume scrubber.

SUBPART I



Maximumfor any 1

day


Kilograms per day

Lead ............................................... 0.0368 0.0123Zinc ................................................ 0.0491 0.0164

Note: The above limitations are applicable to each fumescrubber associated with sulfuric acid pickling operations.


427



(1) Rod, wire, coil.

SUBPART I





secutive days


Lead ....................................... 0.000113 0.0000376Zinc ........................................ 0.000150 0.0000501


SUBPART I





secutive days


Lead ....................................... 0.0000751 0.0000250Zinc ........................................ 0.000100 0.0000334


SUBPART I



Maximumfor any 1

day


secutive days


Lead ......................................... 0.000206 0.0000688Zinc .......................................... 0.000275 0.0000918

(4) Fume scrubber.

SUBPART I



Maximumfor any 1

day


Kilograms per day

Lead ............................................... 0.0368 0.0123




Maximumfor any 1

day


Zinc ................................................ 0.0491 0.0164

Note: The above limitations shall be applicable for eachfume scrubber associated with hydrochloric acid picklingoperations.



SUBPART I



Maximumfor any 1

day


secutive days


Chromium ................................. 0.000292 0.000117Nickel ....................................... 0.000263 0.0000876


SUBPART I



Maximumfor any 1

day


secutive days


Chromium ................................. 0.000167 0.0000667Nickel ....................................... 0.000150 0.0000501


SUBPART I



Maximumfor any 1

day


secutivedays


Chromium ................................... 0.000710 0.000284Nickel ......................................... 0.000638 0.000213



428

40 CFR Ch. I (7–1–98 Edition)§ 420.97

SUBPART I



Maximumfor any 1

day


secutive days


Chromium ................................. 0.000250 0.000100Nickel ....................................... 0.000225 0.0000751


SUBPART I



Maximumfor any 1

day


secutivedays


Chromium ................................... 0.000418 0.000167Nickel ......................................... 0.000376 0.000125

(6) Fume scrubber.

SUBPART I



Maximumfor any 1

day


Kilograms per day

Chromium ....................................... 0.0819 0.0327Nickel ............................................. 0.0735 0.0245

Note: The above limitations shall be applicable for eachfume scrubber associated with combination acid picklingoperations.

[47 FR 23284, May 27, 1982, as amended at 47FR 41739, Sept. 22, 1982; 49 FR 21033, May 17,1984]



(a) Sulfuric acid pickling (spent acidsolutions and rinse waters)


SUBPART I



Maximumfor any 1

day



TSS ................................................ 0.0819 0.0350O&G 1 ............................................. 0.0350 0.0117pH ................................................... (2 ) (2)




SUBPART I



Maximumfor any 1

day



TSS ................................................ 0.0263 0.0113O&G 1 ............................................. 0.0113 0.00376pH ................................................... (2 ) (2)




SUBPART I



Maximumfor any 1

day



TSS ................................................ 0.0526 0.0225O&G 1 ............................................. 0.0225 0.00751pH ................................................... (2 ) (2)





429


SUBPART I



Maximumfor any 1

day


secutivedays


TSS .............................................. 0.146 0.0626O&G 1 ........................................... 0.0626 0.0209pH ................................................. (2 ) (2)



(5) Fume scrubbers.

SUBPART I



Maximumfor any 1

day


Kilograms per day

TSS ................................................ 5.72 2.45O&G1 ............................................. 2.45 0.819pH ................................................... (2 ) (2)






SUBPART I



Maximumfor any 1

day



TSS ................................................ 0.143 0.0613O&G1 ............................................. 0.0613 0.0204pH ................................................... (2 ) (2)




SUBPART I



Maximumfor any 1

day



TSS ................................................ 0.0819 0.0350O&G1 ............................................. 0.0350 0.0117pH ................................................... (2 ) (2)




SUBPART I



Maximumfor any 1

day



TSS ................................................ 0.298 0.128O&G 1 ............................................. 0.128 0.0426pH ................................................... (2 ) (2)



(4) Fume scrubbers.

SUBPART I



Maximumfor any 1

day


Kilograms per day

TSS ................................................ 5.72 2.45O&G 1 ............................................. 2.45 0.819pH ................................................... (2 ) (2)






430

40 CFR Ch. I (7–1–98 Edition)§ 420.97

SUBPART I



Maximumfor any 1

day


Kilograms per day

TSS ................................................ 38.2 16.3O&G 1 ............................................. 16.3 5.45pH ................................................... (2 ) (2)






SUBPART I



Maximumfor any 1

day



TSS ................................................ 0.149 0.0638O&G 1 ............................................. 0.0638 0.0213pH ................................................... (2 ) (2)




SUBPART I



Maximumfor any 1

day



TSS .............................................. 0.0672 0.0288O&G 1 ........................................... 0.0288 0.00960pH ................................................. (2 ) (2)




SUBPART I



Maximumfor any 1

day



TSS ................................................ 0.438 0.188O&G 1 ............................................. 0.188 0.0626pH ................................................... (2 ) (2)



(4) Strip, sheet and plate—batch.

SUBPART I



Maximumfor any 1

day



TSS ................................................ 0.134 0.0576O&G 1 ............................................. 0.0576 0.0192pH ................................................... (2 ) (2)




SUBPART I



Maximumfor any 1

day



TSS ................................................ 0.225 0.0964O&G 1 ............................................. 0.0964 0.0321pH ................................................... (2 ) (2)



(6) Fume scrubbers.


431


SUBPART I



Maximumfor any 1

day


Kilograms per day

TSS ................................................ 5.72 2.45O&G1 ............................................. 2.45 0.819pH ................................................... (2 ) (2)




[47 FR 23284, May 27, 1982; 47 FR 41739, Sept.22, 1982]

Subpart J—Cold FormingSubcategory

§ 420.100 Applicability; description ofthe cold forming subcategory.

(a) The provisions of this subpart areapplicable to discharges and to the in-troduction of pollutants into publiclyowned treatment works from cold roll-ing and cold working pipe and tube op-erations in which unheated steel ispassed through rolls or otherwise proc-essed to reduce its thickness, toproduce a smooth surface, or to developcontrolled mechanical properties in thesteel.

(b) The limitations and standards setout below for cold worked pipe andtube operations shall be applicableonly where cold worked pipe and tubewastewaters are discharged at steelplant sites. No limitations are applica-ble or allowable where thesewastewaters are hauled off-site for dis-posal or are otherwise not dischargedat steel plant sites. The limitationsand standards set out below for coldworked pipe and tube operations shallbe applicable only to the blowdown ofsoluble oil or water solutions used incold worked pipe and tube forming op-erations. Limitations for other waste-

water sources from these operationsmust be established on a site-specificbasis.


§ 420.101 Specialized definitions.

(a) The term recirculation meansthose cold rolling operations which in-clude recirculation of rolling solutionsat all mill stands.

(b) The term combination means thosecold rolling operations which includerecirculation of rolling solutions at oneor more mill stands, and once-throughuse of rolling solutions at the remain-ing stand or stands.

(c) The term direct application meansthose cold rolling operations which in-clude once-through use of rolling solu-tions at all mill stands.

(d) The term single stand means thoserecirculation or direct application coldrolling mills which include only onestand of work rolls.

(e) The term multiple stands meansthose recirculation or direct applica-tion cold rolling mills which includemore than one stand of work rolls.

(f) The term cold worked pipe and tubemeans those cold forming operationsthat process unheated pipe and tubeproducts using either water or oil solu-tions for cooling and lubrication.

§ 420.102 Effluent limitations rep-resenting the degree of effluent re-duction attainable by the applica-tion of the best practicable controltechnology currently available(BPT).


(a) Cold rolling mills.(1) Recirculation—single stand.


432

40 CFR Ch. I (7–1–98 Edition)§ 420.102

SUBPART J





secutive days


TSS ........................................ 0.00125 0.000626O&G ....................................... 0.000522 0.000209Chromium 1 ............................ 0.0000209 0.0000084Lead ....................................... 0.0000094 0.0000031Nickel 1 ................................... 0.0000188 0.0000063Zinc ........................................ 0.0000063 0.0000021Naphthalene ........................... 0.0000021 ......................Tetrachloroethylene ............... 0.0000031 ......................pH ........................................... (2 ) (2)

1 The limitations for chromium and nickel shall be applicablein lieu of those for lead and zinc when cold rollingwastewaters are treated with descaling or combination acidpickling wastewaters.


(2) Recirculation—multiple stands.

SUBPART J





secutive days





(3) Combination.

SUBPART J



Maximumfor any 1

day


secutivedays


TSS ............................................ 0.0751 0.0376O&G ........................................... 0.0313 0.0125Chromium 1 ................................ 0.00125 0.000501Lead ........................................... 0.000563 0.000188Nickel 1 ....................................... 0.00113 0.000376Zinc ............................................ 0.000376 0.000125

SUBPART J—Continued



Maximumfor any 1

day


secutivedays

Naphthalene ............................... 0.000125 ....................Tetrachloroethylene ................... 0.000188 ....................pH ............................................... (2 ) (2)

1 The limitations for chromium and nickel shall be applicablein lieu of those for lead and zinc when cold rollingwastewaters are cotreated with descaling or combination acidpickling wastewaters.


(4) Direct application—single stand.

SUBPART J





secutive days





(5) Direct application—multiplestands.

SUBPART J



Maximumfor any 1

day


secutivedays


TSS ............................................ 0.100 0.0501O&G ........................................... 0.0417 0.0167Chromium 1 ................................ 0.00167 0.000668Lead ........................................... 0.000751 0.000250Nickel 1 ....................................... 0.00150 0.000501Zinc ............................................ 0.000501 0.000167Naphthalene ............................... 0.000167 ....................Tetrachloroethylene ................... 0.000250 ....................pH ............................................... (2 ) (2)



433



(b) Cold worked pipe and tube.(1) Using water.

SUBPART J





secutive days


TSS ........................................ 0.00125 0.000626O&G ....................................... 0.000522 0.000209Chromium 1 ............................ 0.0000209 0.0000084Lead ....................................... 0.0000094 0.0000031Nickel 1 ................................... 0.0000188 0.0000063Zinc ........................................ 0.0000063 0.0000021pH ........................................... (2) (2)

1 The limitations for chromium and nickel shall be applicablein lieu of those for lead and zinc when cold formingwastewaters are treated with descaling or combination acidpickling wastewaters.


(2) Using oil solutions.

SUBPART J





secutive days


TSS ........................................ 0.00125 0.000626O&G ....................................... 0.000522 0.000209Chromium 1 ............................ 0.0000209 0.0000084Lead ....................................... 0.0000094 0.0000031Nickel 1 ................................... 0.0000188 0.0000063Zinc ........................................ 0.0000063 0.0000021Naphthalene ........................... 0.0000021 ......................Tetrachloroethylene ............... 0.0000031 ......................pH ........................................... (2) (2)



[47 FR 23284, May 27, 1982, as amended at 49FR 21034, May 17, 1984; 49 FR 24726, June 15,1984]

§ 420.103 Effluent limitations rep-resenting the degree of effluent re-duction attainable by the applica-tion of the best available tech-nology economically achievable(BAT).

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 available technologyeconomically achievable.


SUBPART J



Maximumfor any 1

day


secutivedays


Chromium 1 ................................ 0.0000209 0.0000084Lead ........................................... 0.0000094 0.0000031Nickel 1 ....................................... 0.0000188 0.0000063Zinc ............................................ 0.0000063 0.0000021Naphthalene ............................... 0.0000021 ....................Tetrachloroethylene ................... 0.0000031 ....................



SUBPART J





secutivedays


Chromium 1 .............................. 0.000104 0.0000418Lead ......................................... 0.0000469 0.0000156Nickel1 ...................................... 0.0000939 0.0000313Zinc .......................................... 0.0000313 0.0000104Naphthalene ............................. 0.0000104 ....................Tetrachloroethylene ................. 0.0000156 ....................


(3) Combination.

SUBPART J



Maximumfor any 1

day


secutivedays


Chromium 1 ................................ 0.00125 0.000501Lead ........................................... 0.000563 0.000188Nickel 1 ....................................... 0.00113 0.000376


434

40 CFR Ch. I (7–1–98 Edition)§ 420.104




Maximumfor any 1

day


secutivedays

Zinc ............................................ 0.000376 0.000125Naphthalene ............................... 0.000125 ....................Tetrachloroethylene ................... 0.000188 ....................



Subpart J





secutive days


Chromium 1 ............................ 0.000376 0.000150Lead ....................................... 0.000169 0.0000563Nickel 1 ................................... 0.000338 0.000113Zinc ........................................ 0.000113 0.0000376Naphthalene ........................... 0.0000376 ......................Tetrachloroethylene ............... 0.0000563 ......................



SUBPART J



Maximumfor any 1

day


secutivedays





SUBPART J



Maximumfor any 1

day


secutivedays


Chromium 1 ................................ 0.0000209 0.0000084Lead ........................................... 0.0000094 0.0000031Nickel 1 ....................................... 0.0000188 0.0000063Zinc ............................................ 0.0000063 0.0000021



SUBPART J



Maximumfor any 1

day


secutivedays








SUBPART J





secutive days


TSS ........................................ 0.00125 0.000626


435







secutive days

O&G ....................................... 0.000522 0.000209Chromium 1 ............................ 0.0000209 0.0000084Lead ....................................... 0.0000094 0.0000031Nickel 1 ................................... 0.0000188 0.0000063Zinc ........................................ 0.0000063 0.0000021Naphthalene ........................... 0.0000021 ......................Tetrachloroethylene ............... 0.0000031 ......................pH ........................................... (2 ) (2)




SUBPART J





secutive days





(3) Combination.

SUBPART J





secutive days


TSS ........................................ 0.0326 0.0163O&G ....................................... 0.0136 0.00543Chromium 1 ............................ 0.000543 0.000217Lead ....................................... 0.000244 0.0000814Nickel 1 ................................... 0.000488 0.000163Zinc ........................................ 0.000163 0.0000542Naphthalene ........................... 0.0000542 ......................Tetrachloroethylene ............... 0.0000813 ......................






secutive days

pH ........................................... (2 ) (2)

1 The limitations for chromium and nickel shall be applicablein lieu of those for lead and zinc when cold rolling wastwatersare treated with descaling or combination acid picklingwastewaters.



SUBPART J





secutive days


TSS ........................................ 0.00626 0.00313O&G ....................................... 0.00261 0.00104Chromium1 ............................. 0.000104 0.0000418Lead ....................................... 0.0000469 0.0000156Nickel1 .................................... 0.0000939 0.0000313Zinc ........................................ 0.0000313 0.0000104Naphthalene ........................... 0.0000104 ......................Tetrachloro-ethylene .............. 0.0000156 ......................pH ........................................... (2 ) (2)

1 The limitations for chromium and nickel shall be applicablein lieu of those for lead and zinc when cold rollingwastewaters are treated with descaling or combination acidpickling watewaters.



SUBPART J



Maximumfor any 1

day


secutivedays


TSS ............................................ 0.0726 0.0363O&G ........................................... 0.0302 0.0121Chromium1 ................................. 0.00121 0.000484Lead ........................................... 0.000545 0.000182Nickel1 ........................................ 0.00109 0.000363Zinc ............................................ 0.000363 0.000121Naphthalene ............................... 0.000121 ....................Tetrachloro-ethylene .................. 0.000182 ....................pH ............................................... (2 ) (2)

1 The limitations for chromium and nickel shall be applicablein lieu of those for lead and zinc when cold rollingwastewaters are treated with descaling or combination acidpickling watewaters.


436

40 CFR Ch. I (7–1–98 Edition)§ 420.105


(b) Cold worked pipe and tube mills.(1) Using water.

SUBPART J





secutive days


TSS ........................................ 0.00125 0.000626O&G ....................................... 0.000522 0.000209Chromium 1 ............................ 0.0000209 0.0000084Lead ....................................... 0.0000094 0.0000031Nickel 1 ................................... 0.0000188 0.0000063Zinc ........................................ 0.0000063 0.0000021pH ........................................... (2) (2)

1 The limitations for chromium and nickel shall be applicablein lieu of those for lead and zinc when cold formingwastewaters are cotreated with descaling or combination acidpickling wastewaters.



SUBPART J


New Source PerformanceStandards



secutive days


TSS ........................................ 0.00125 0.000626O&G ....................................... 0.000522 0.000209Chromium 1 ............................ 0.0000209 0.0000084Lead ....................................... 0.0000094 0.0000031Nickel 1 ................................... 0.0000188 0.0000063Zinc ........................................ 0.0000063 0.0000021Naphthalene ........................... 0.0000021 ......................Tetrachloroethylene ............... 0.0000031 ......................pH ........................................... (2) (2)

1 The limitations for chromium and nickel shall be applicablein lieu of those for lead and zinc when cold formingwastewaters are cotreated with descaling or combination acidpickling wastewaters.


[47 FR 23284, May 27, 1982, as amended at 49FR 21035, May 17, 1984; 49 FR 24726, June 15,1984]


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

pretreatment standards for existingsources.

(a) Cold rolling.(1) Recirculation—single stand.

SUBPART J





secutive days





SUBPART J





secutive days




(3) Combination.

SUBPART J



Maximumfor any 1

day


secutivedays


Chromium 1 ................................ 0.00125 0.000501Lead ........................................... 0.000563 0.000188Nickel 1 ....................................... 0.00113 0.000376Zinc ............................................ 0.000376 0.000125Naphthalene ............................... 0.000125 ....................


437





Maximumfor any 1

day


secutivedays

Tetrachloroethylene ................... 0.000188 ....................



SUBPART J





secutive days





SUBPART J



Maximumfor any 1

day


secutivedays


Chromium 1 ................................ 0.00167 0.000668Lead ........................................... 0.000751 0.000250Nickel 1 ....................................... 0.00150 0.000501Zinc ............................................ 0.000501 0.000167Napthalene ................................. 0.000167 ....................Tetrachloroethylene ................... 0.000250 ....................



SUBPART J



Maximumfor any 1

day


secutivedays


Chromium 1 ................................ 0.0000209 0.0000084Lead ........................................... 0.0000094 0.0000031Nickel 1 ....................................... 0.0000188 0.0000063Zinc ............................................ 0.0000063 0.0000021



SUBPART J



Maximumfor any 1

day


secutivedays







(a) Cold rolling.(1) Recirculation—single stand.


438

40 CFR Ch. I (7–1–98 Edition)§ 420.106

SUBPART J





secutive days





SUBPART J





secutive days




(3) Combination.

SUBPART J





secutive days





SUBPART J





secutive days

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

Chromium1 ............................. 0.000104 0.0000418Lead ....................................... 0.0000469 0.0000156Nickel1 ................................... 0.0000939 0.0000313Zinc ........................................ 0.0000313 0.0000104Naphthalene ........................... 0.0000104 ......................Tetrachloroethylene ............... 0.0000156 ......................



SUBPART J



Maximumfor any 1

day


secutivedays

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

Chromium1 ................................. 0.00121 0.000484Lead ........................................... 0.000545 0.000182Nickel1 ....................................... 0.00109 0.000363Zinc ............................................ 0.000363 0.000121Naphthalene ............................... 0.000121 ....................Tetrachloroethylene ................... 0.000182 ....................



SUBPART J



Maximumfor any one

day


secutivedays


Chromium1 ................................. 0.0000209 0.0000084Lead ........................................... 0.0000094 0.0000031Nickel1 ........................................ 0.0000188 0.0000063


439





Maximumfor any one

day


secutivedays

Zinc ............................................ 0.0000063 0.0000021


(2) Using oil solutions

SUBPART J



Maximumfor any one

day


secutivedays

kg/kkg (pound per 1,000lb) of product

Chromium1 ................................. 0.0000209 0.0000084Lead ........................................... 0.0000094 0.0000031Nickel1 ........................................ 0.0000188 0.0000063Zinc ............................................ 0.0000063 0.0000021Naphthalene ............................... 0.0000021 ....................Tetrachloroethylene ................... 0.0000031 ....................

1 The limitations for chromium and nickel shall be applicablein lieu of those for lead and zinc when cold formingwastewaters are treated with descaling or combination acidpickling wastewasters.


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



SUBPART J



Maximumfor any 1

day


secutivedays


TSS ............................................ 0.00125 0.000626O&G ........................................... 0.000522 0.000209pH ............................................... (1 ) (1)



SUBPART J



Maximumfor any 1

day


secutivedays


TSS ............................................ 0.00626 0.00313O&G ........................................... 0.00261 0.00104pH ............................................... (1 ) (1)


(3) Combination.

SUBPART J



Maximumfor any 1

day


secutivedays


TSS ............................................ 0.0751 0.0376O&G ........................................... 0.0313 0.0125pH ............................................... (1 ) (1)



SUBPART J



Maximumfor any 1

day



TSS ................................................ 0.0225 0.0113O&G ............................................... 0.00939 0.00376


440

40 CFR Ch. I (7–1–98 Edition)§ 420.110




Maximumfor any 1

day


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



SUBPART J



Maximumfor any 1

day



TSS ................................................ 0.100 0.0501O&G ............................................... 0.0417 0.0167pH ................................................... (1 ) (1)



SUBPART J





secutivedays


TSS .......................................... 0.00125 0.000626O&G ......................................... 0.000522 0.000209pH ............................................. (1 ) (1)



SUBPART J





secutivedays


TSS .......................................... 0.00125 0.000626O&G ......................................... 0.000522 0.000209pH ............................................. (1 ) (1)



Subpart K—Alkaline CleaningSubcategory

§ 420.110 Applicability; description ofthe alkaline cleaning subcategory.

The provisions of this subpart are ap-plicable to discharges and to the intro-duction of pollutants into publiclyowned treatment works resulting fromoperations in which steel and steelproducts are immersed in alkalinecleaning baths to remove mineral andanimal fats or oils from the steel, andthose rinsing operations which followsuch immersion.

§ 420.111 Specialized definitions.(a) The term batch means those alka-

line cleaning operations which processsteel products such as coiled wire, rods,and tubes in discrete batches or bun-dles.

(b) The term continuous means thosealkaline cleaning operations whichprocess steel products other than indiscrete batches or bundles.



(a) Batch.

SUBPART K



Maximumfor any 1

day


secutivedays


TSS ............................................ 0.0730 0.0313O&G ........................................... 0.0313 0.0104pH ............................................... (1 ) (1)



441


(b) Continuous.

SUBPART K



Maximumfor any 1

day



TSS ................................................ 0.102 0.0438O&G ............................................... 0.0438 0.0146pH ................................................... (1 ) (1)



The Agency has determined thatthere are not significant quantities oftoxic pollutants in alkaline cleaningwastewaters after compliance with ap-plicable BPT limitations. Accordingly,since the BPT level of treatment pro-vides adequate control, the Agency isnot promulgating more stringent BATlimitations.



(a) Batch and continuous.

SUBPART K



Maximumfor any 1

day



TSS ................................................ 0.0146 0.00626O&G ............................................... 0.00626 0.00209pH ................................................... (1 ) (1)



Any existing source subject to thissubpart which introduces pollutants

into a publicly owned treatment worksmust comply with 40 CFR part 403.


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



(a) Batch.

SUBPART K



Maximumfor any 1

day



TSS ................................................ 0.0730 0.0313O&G ............................................... 0.0313 0.0104pH ................................................... (1 ) (1)


(b) Continuous.

SUBPART K



Maximumfor any 1

day



TSS ................................................ 0.102 0.0438O&G ............................................... 0.0438 0.0146pH ................................................... (1 ) (1)



442

40 CFR Ch. I (7–1–98 Edition)§ 420.120

Subpart L—Hot CoatingSubcategory

§ 420.120 Applicability; description ofthe hot coating subcategory.

(a) The provisions of this subpart areapplicable to discharges and to the in-troduction of pollutants into publiclyowned treatment works resulting fromthe operations in which steel is coatedwith zinc, terne metal, or other metalsby the hot dip process, and those rins-ing operations associated with thatprocess.

(b) The BPT and BAT limitations forzinc set out below are not applicable tohot coating operations with waste-water treatment facilities achieving,during periods of normal production,zinc discharge levels more stringentthan those BPT and BAT limitations.For such operations, the BPT and BATlimitations for zinc shall be deter-mined on a case-by-case basis basedupon the existing performance of thewastewater treatment facility. Thepermitting authority shall evaluaterepresentative effluent data from thewastewater treatment facility duringperiods of normal production in estab-lishing the case-by-case BPT and BATlimitations. The BPT and BAT limita-tions specified in 40 CFR 420.122 and420.123 may be used as the basis for cal-culating total mass limitations for zincpursuant to 40 CFR 420.03.


§ 420.121 Specialized definitions.(a) The term galvanizing means coat-

ing steel products with zinc by the hotdip process including the immersion ofthe steel product in a molten bath ofzinc metal, and the related operationspreceding and subsequent to the im-mersion phase.

(b) The term terne coating meanscoating steel products with terne metalby the hot dip process including theimmersion of the steel product in amolten bath of lead and tin metals, andthe related operations preceding andsubsequent to the immersion phase.

(c) The term other coatings meanscoating steel products with metalsother than zinc or terne metal by thehot dip process including the immer-

sion of the steel product in a moltenbath of metal, and the related oper-ations preceding the subsequent to theimmersion phase.

(d) The term fume scrubber means wetair pollution control devices used to re-move and clean fumes originating fromhot coating operations.

(e) The term strip, sheet, and mis-cellaneous products means steel prod-ucts other than wire products and fas-teners.

(f) The term wire products and fasten-ers means steel wire, products manu-factured from steel wire, and steel fas-teners manufactured from steel wire orother steel shapes.



(a) Galvanizing, terne coating, andother coatings.

(1) Strip, sheet, and miscellaneousproducts.

SUBPART L



Maximumfor any 1

day


secutive days


TSS .......................................... 0.175 0.0751O&G ......................................... 0.0751 0.0250Lead ......................................... 0.00113 0.000376Zinc .......................................... 0.00150 0.000500Chromium (hexavalent) 1 ......... 0.000150 0.0000501pH ............................................. (2 ) (2)

1 The limitations for hexavalent chromium shall apply only togalvanizing operations which discharge wastewaters from thechromate rinse step.


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


443


SUBPART L



Maximumfor any 1

day


secutivedays


TSS ............................................ 0.701 0.300O&G ........................................... 0.300 0.100Lead ........................................... 0.00451 0.00150Zinc ............................................ 0.00601 0.00200Chromium (hexavalent) 1 ........... 0.000600 0.000200pH ............................................... (2 ) (2)

1 The limitations for hexavalent chromium shall be applica-ble only to galvanizing operations which dischargewastewaters from the chromate rinse step.


(c) Fume scrubbers.

SUBPART L



Maximumfor any 1

day


Kg per day

TSS ................................................ 38.1 16.3O&G ............................................... 16.3 5.45Lead ............................................... 0.245 0.0819Zinc ................................................ 0.327 0.109Chromium (hexavalent) 1 ............... 0.0327 0.0109pH ................................................... (2 ) (2)



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




(a) Galvanizing, terne coating andother coatings.

(1) Strip, sheet, and miscellaneousproducts scrubbers.

SUBPART L





secutive days


Lead ....................................... 0.00113 0.000376Zinc ........................................ 0.00150 0.000500Chromium (hexavalent) 1 ....... 0.000150 0.0000501

1 The limitations for hexavalent chromium shall be applica-ble only to galvanizing operations which discharge wastewaterfrom the chromate rinse step.


SUBPART L



Maximumfor any 1

day


secutive days


Lead ......................................... 0.00451 0.00150Zinc .......................................... 0.00601 0.00200Chromium (hexavalent) 1 ......... 0.000601 0.000200


(c) Fume scrubbers.

SUBPART L



Maximumfor any 1

day


Kg per day

Lead ............................................... 0.0368 0.0123Zinc ................................................ 0.0491 0.0164Chromium (hexavalent) 1 ............... 0.00490 0.00163





444

40 CFR Ch. I (7–1–98 Edition)§ 420.124





SUBPART L





secutive days


TSS ........................................ 0.0438 0.0188O&G ....................................... 0.0188 0.00626Lead ....................................... 0.000282 0.0000939Zinc ........................................ 0.000376 0.000125Chromium (hexavalent)1 ........ 0.0000376 0.0000125pH ........................................... (2 ) (2)




SUBPART L



Maximumfor any 1

day


secutive days


TSS .......................................... 0.175 0.0751O&G ......................................... 0.0751 0.0250Lead ......................................... 0.00113 0.000376Zinc .......................................... 0.00150 0.000500Chromium (hexavalent)1 .......... 0.000150 0.0000501pH ............................................. (1 ) (1)



(c) Fume scrubbers.

SUBPART L

New source performance stand-ards

Pollutant or pollutantproperty

Maximumfor any 1

day


kg/per day

TSS ................................................ 5.72 2.45O&G ............................................... 2.45 0.819Lead ............................................... 0.0368 0.0123Zinc ................................................ 0.0491 0.0164Chromium (hexavalent)1 ................ 0.00490 0.00163pH ................................................... (2 ) (2)









SUBPART L

Pretreatment standards for ex-isting sources

Pollutant or pollutant prop-erty

Maximumfor any 1

day


secutive days


Lead ......................................... 0.00113 0.000376Zinc .......................................... 0.00150 0.000500Chromium (hexavalent)1 .......... 0.000150 0.0000501




445


SUBPART L



Maximumfor any 1

day


secutivedays


Lead ........................................... 0.00451 0.00150Zinc ............................................ 0.00601 0.00200Chromium (hexavalent)1 ............ 0.000601 0.000200


(c) Fume scrubbers.

SUBPART L



Maximumfor any 1

day


Kg per day

Lead ............................................... 0.0368 0.0123Zinc ................................................ 0.0491 0.0164Chromium (hexavalent)1 ................ 0.00490 0.00163





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:

(a) Galvanizing, terne coatings andother coatings.


SUBPART L





secutive days


Lead ....................................... 0.000282 0.0000939Zinc ........................................ 0.000376 0.000125Chromium (hexavalent) 1 ....... 0.0000376 0.0000125



SUBPART L



Maximumfor any 1

day


secutive days


Lead ......................................... 0.00113 0.000376Zinc .......................................... 0.00150 0.000500Chromium (hexavalent) 1 ......... 0.000150 0.0000501


(c) Fume scrubbers.

SUBPART L



Maximumfor any 1

day


Kilograms per day

Lead ............................................... 0.0368 0.0123Zinc ................................................ 0.0491 0.0164Chromium (Hexavalent) 1 ............... 0.00490 0.00163





446

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



(a) Galvanizing, terne coating, andother coatings.


SUBPART L



Maximumfor any 1

day



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



SUBPART L



Maximumfor any 1

day


secutivedays


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


(c) Fume scrubbers.

SUBPART L



Maximumfor any 1

day


Kilograms per day

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



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.

421.21 Specialized definitions.421.22 Effluent limitations guidelines rep-

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


part 420—iron and steel manu- facturing point...

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