adpc&e monthly well report no. 41 for june 1997 · 0.14

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ADPC&E OLD MIDLAND PRODUCTS SITE MONTHLY WELL REPORT REPORT #41 JUNE 1997 Prepared by < -=^ OHM Remediation jfl^ Services Corp. A Sttbildluy oT 225 West Airtex Boulevard Houston, TX 77090 (Formerly Chemical waste Management, inc.) 160053

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Page 1: ADPC&E MONTHLY WELL REPORT NO. 41 FOR JUNE 1997 · 0.14

ADPC&E

OLD MIDLAND PRODUCTS SITE

MONTHLY WELL REPORT

REPORT #41

JUNE 1997

Prepared by

<-=^ OHM Remediationjfl^ Services Corp.

A Sttbildluy oT

225 West Airtex BoulevardHouston, TX 77090

(Formerly Chemical waste Management, inc.)

160053

lgonzale
003605
Page 2: ADPC&E MONTHLY WELL REPORT NO. 41 FOR JUNE 1997 · 0.14

TABLE OF CONTENTS

1 SYSTEM REPORTSRecovery Well SummaryMonthly Well Production Chart

2 LABORATORY RESULTS SUMMARY SHEET - WASTEWATERWWTP Effluent SamplesShort Term Chronic Toxicity Report - Quarterly (If AppUcable)

3 LABORATORY RESULTS SUMMARY SHEET - GROUNDWATERRecovery Well Samples (RW) - MonthlyMonitoring Well Samples (MW) - Semi-Annual (If Applicable)

4 POTENTIOMETRIC MAPS & ELEVATION TABLESShallow Potentiometric (Surface Contours)Deep Potentiometric (Surface Contours)Recovery Well Elevation TableMonitoring Well Elevation TablePiezometer Water Elevation Table

5 FIELD LOG

6 SUMMARY

lgonzale
003606
Page 3: ADPC&E MONTHLY WELL REPORT NO. 41 FOR JUNE 1997 · 0.14

CHEMICAL WASTE MANAGEMENTOLD MIDLAND PRODUCTS SITE

PROJECT NO. 290001

RECOVERY WELL SUMMARY

6/3/97 - 6/30/97

RECOVERYWELL NO.

RW-1RW-2RW-3RW-4RW-5RW-6RW-7RW-8

TOTAL

GROUNDWATERVOLUME

(gal)

1,88016.12034,7004,6101,980

2,6403,370

26,90092,200

CARBONRECOVERED

(mg)

270,422378,318210,16034,90011,992

0

25,513244,379

1,175,684

PCPRECOVERED

(mg)

23,48430,51012,0841,483

75

0

2,55124,43894,625

PNA'sRECOVERED

(mg)

181,1111,146,548

31,78710,9241,199

0

95,67320,263

RECOVEREDGROUNDWATER

TO DATE

86,960746,840830,870619,230185,440

1,080,170250,710858,700

1,487,505 II 4,658,920

PNA'S Recovered (mg) = [Total PNA's (mg/L)] x [Rec. GW Volume (gal)] x [3.7853 L/gal]Similiar calculation for PCP & TOC Recovered

lgonzale
003607
Page 4: ADPC&E MONTHLY WELL REPORT NO. 41 FOR JUNE 1997 · 0.14

OLD MIDLAND PRODUCTS SITE

Ola, Arkansas

Month Gallons Recovered

Jan-97

Feb-97Mar-97

Apr-97

May-97Jun-97Jul-97Aug-97Sep-97Oct-97Nov-97Dec-97

144,350

181,710181,480

171,130

159,95092,200

930,820 1997 Total Recovery

Monthly Recovery Well ProductionCMP Site

2"5

3

Month

lgonzale
003608
Page 5: ADPC&E MONTHLY WELL REPORT NO. 41 FOR JUNE 1997 · 0.14

CHEMICAL WASTE MANAGEMENTOLD MIDLAND PRODUCTS SITE

PROJECT NO. 290001

WASTE WATERLABORATORY RESULTS SUMMARY SHEET

REPORT NUMBER: 41

SAMPLE ID: WW-337DATE SAMPLED: 6/3/97-6/4/97TIME SAMPLED: 0800 hrs. - 0800 hrs.

INSPECTOR/SAMPLER: M HOUGHTONSAMPLE LOCATION: WWTP EFF. S.P.

FAX RESULTS RECEIVED: 6/9/97

PARAMETERSCHLORIDE

NH3

BOD

PHTOC

TSS

OIL & GREASE

RESULTS (mg/L)2400.21<2

7.2< 1

7.2

<5

(WEEKLY PARAMETERS)

lgonzale
003609
Page 6: ADPC&E MONTHLY WELL REPORT NO. 41 FOR JUNE 1997 · 0.14

CHEMICAL WASTE MANAGEMENTOLD MIDLAND PRODUCTS SITE

PROJECT NO. 290001

WASTE WATERLABORATORY RESULTS SUMMARY SHEET

REPORT NUMBER : 41

SAMPLE ID: WW-338DATE SAMPLED: 6/10/97-6/11/97TIME SAMPLED: 0800 hrs. - 0800 hrs.

INSPECTOR/SAMPLER:SAMPLE LOCATION:'

FAX RESULTS RECEIVED:'

M HOUGHTONWWTP EFF. S.P.

6/17/97

PARAMETERS || RESULTS (mg/L)

CHLORIDESPCP

NH3

BODpH

TOC

TSSOIL & GREASE

TOTAL PHENOLS

250< 0.0074

0.14

<26.7<1

6.822

< 0.005exceeds daily limit of 15

(BI-WEEKLY PARAMETERS)

lgonzale
003610
Page 7: ADPC&E MONTHLY WELL REPORT NO. 41 FOR JUNE 1997 · 0.14

CHEMICAL WASTE MANAGEMENT

OLD MIDLAND PRODUCTS SITE

PROJECT NO. 290001

WASTE WATER

LABORATORY RESULTS SUMMARY SHEET

REPORT NUMBER : 41

SAMPLE ID:DATE SAMPLED:'TIME SAMPLED:'

WW-3396/16/97-6/17/97

0800 hrs. - 0800 hrs.

INSPECTOR/SAMPLER:SAMPLE LOCATION:

FAX RESULTS RECEIVED:

M HOUGHTONWWTP EFF. S.P.

6/23/97

PARAMETERS || RESULTS (mg/L)

CHLORIDENH3BOD

pHTOC

TSS

OIL & GREASE

2900.18<2

7.01.27.2

<5

(WEEKLY PARAMETERS)

lgonzale
003611
Page 8: ADPC&E MONTHLY WELL REPORT NO. 41 FOR JUNE 1997 · 0.14

CHEMICAL WASTE MANAGEMENTOLD MIDLAND PRODUCTS SITE

PROJECT NO. 290001

WASTE WATERLABORATORY RESULTS SUMMARY SHEET

REPORT NUMBER : 41

SAMPLE ID: WW-340DATE SAMPLED: 6/24/97 - 6/25/97TIME SAMPLED: 0800 hrs. - 0800 hrs.

INSPECTOR/SAMPLER:SAMPLE LOCATION:

FAX RESULTS RECEIVED:

M HOUGHTONWWTP EFF. S.P.

6/30/97

PARAMETERS || RESULTS (mg/L)CHLORIDE

PCP

ACENAPHTHENE

FLUORANTHENENAPHTHALENE

NH3

BODpH

TOC

TSS

OIL & GREASETOTAL PHENOLS

270< 0.0074

<0.01

<0.01<0.010.23

<26.7

1.5

8.2

<5

< 0.005

(QUARTERLY PARAMETERS)

lgonzale
003612
Page 9: ADPC&E MONTHLY WELL REPORT NO. 41 FOR JUNE 1997 · 0.14

CHEMICAL WASTE MANAGEMENTOLD MIDLAND PRODUCTS SITE

PROJECT NO. 290001

GROUNDWATERLABORATORY RESULTS SUMMARY SHEET

REPORT NUMBER: 41

SAMPLE ID:DATE SAMPLED:'TIME SAMPLED:'

GW-6046/17/97

0900

INSPECTOR/SAMPLER:SAMPLE LOCATION:

FAX RESULTS RECEIVED:

M HOUGHTONRW-1

6/23/97

PARAMETERS J| RESULTS (mg/L)

PCPACENAPHTHENEACENAPHTHYLENE

ANTHRACENEBENZO (a) ANTHRACENE

BENZO (a) PYRENEBENZO (b) FLUORANTHENE

BENZO (k) FLUORANTHENECARBAZOLECHRYSENEDIBENZ (a,h) ANTHRACENEFLUORANTHENE

FLUORENE

INDENO (1,2,3-cd) PYRENE

NAPHTHALENE

PHENANTHRENE

PYRENE

TOTAL ORGANIC CARBON

3.33.0

< 0.5

1.1< 0.5< 0.5

< 0.5

< 0.50.55

< 0.5<0.5

2.82.2

<0.5

4.9

5.0

1.9

38

Total PNA's 25.45

lgonzale
003613
Page 10: ADPC&E MONTHLY WELL REPORT NO. 41 FOR JUNE 1997 · 0.14

CHEMICAL WASTE MANAGEMENTOLD MIDLAND PRODUCTS SITE

PROJECT NO. 290001

GROUNDWATERLABORATORY RESULTS SUMMARY SHEET

REPORT NUMBER: 41

SAMPLE ID:DATE SAMPLED:'TIME SAMPLED:'

GW-6056/17/97

0900

NSPECTOR/SAMPLER:SAMPLE LOCATION:

FAX RESULTS RECEIVED:

M HOUGHTONRW-2

6/23/97

PARAMETERS || RESULTS (mg/L)

PCPACENAPHTHENE

ACENAPHTHYLENE

ANTHRACENEBENZO (a) ANTHRACENEBENZO (a) PYRENE

BENZO (b) FLUORANTHENE

BENZO (k) FLUORANTHENECARBAZOLECHRYSENEDIBENZ (a,h) ANTHRACENEFLUORANTHENEFLUORENE

INDENO (1,2,3-cd) PYRENE

NAPHTHALENE

PHENANTHRENE

PYRENE

TOTAL ORGANIC CARBON

< 0.52

< 0.5

0.79< 0.5< 0.5

< 0.5

< 0.5< 0.5< 0.5< 0.5

2.01.7

< 0.5

2.0

3.9

1.5

6.2

Total PNA's 18.79

lgonzale
003614
Page 11: ADPC&E MONTHLY WELL REPORT NO. 41 FOR JUNE 1997 · 0.14

CHEMICAL WASTE MANAGEMENTOLD MIDLAND PRODUCTS SITE

PROJECT NO. 290001

GROUNDWATERLABORATORY RESULTS SUMMARY SHEET

REPORT NUMBER : 41

SAMPLE ID:DATE SAMPLED:'

TIME SAMPLED:

GW-6066/17/97

0900

NSPECTOR/SAMPLER:SAMPLE LOCATION:

FAX RESULTS RECEIVED:

M HOUGHTONRW-3

6/23/97

PARAMETERS || RESULTS (mg/L) |

PCPACENAPHTHENEACENAPHTHYLENE

ANTHRACENEBENZO (a) ANTHRACENEBENZO (a) PYRENEBENZO (b) FLUORANTHENE

BENZO (k) FLUORANTHENECARBAZOLECHRYSENEDIBENZ (a,h) ANTHRACENEFLUORANTHENEFLUORENE

INDENO (1,2,3-cd) PYRENE

NAPHTHALENE

PHENANTHRENE

PYRENE

TOTAL ORGANIC CARBON

0.0920.055

< 0.01

< 0.01< 0.01< 0.01

< 0.01

< 0.010.011

<0.01< 0.01

0.0120.025

< 0.01

0.021

0.018

< 0.01

1.6

Total PNA's 0.24

lgonzale
003615
Page 12: ADPC&E MONTHLY WELL REPORT NO. 41 FOR JUNE 1997 · 0.14

CHEMICAL WASTE MANAGEMENTOLD MIDLAND PRODUCTS SITE

PROJECT NO. 290001

GROUNDWATERLABORATORY RESULTS SUMMARY SHEET

REPORT NUMBER : 41

SAMPLE ID:DATE SAMPLED:'

TIME SAMPLED:'

GW-6076/17/97

0900

NSPECTOR/SAMPLER:SAMPLE LOCATION:

FAX RESULTS RECEIVED:

M HOUGHTONRW-4

6/23/97

PARAMETERS || RESULTS (mg/L)

PCPACENAPHTHENE

ACENAPHTHYLENE

ANTHRACENEBENZO (a) ANTHRACENEBENZO (a) PYRENE

BENZO (b) FLUORANTHENE

BENZO (k) FLUORANTHENECARBAZOLECHRYSENEDIBENZ (a,h) ANTHRACENEFLUORANTHENEFLUORENE

INDENO (1,2,3-cd) PYRENE

NAPHTHALENE

PHENANTHRENE

PYRENE

TOTAL ORGANIC CARBON

0.0850.20

< 0.01

0.027< 0.01< 0.01

< 0.01

<0.01< 0.01<0.01< 0.01

0.0330.11

<0.01

0.025

0.12

0.021

2.0

Total PNA's 0.63

lgonzale
003616
Page 13: ADPC&E MONTHLY WELL REPORT NO. 41 FOR JUNE 1997 · 0.14

CHEMICAL WASTE MANAGEMENTOLD MIDLAND PRODUCTS SITE

PROJECT NO. 290001

GROUNDWATERLABORATORY RESULTS SUMMARY SHEET

REPORT NUMBER : 41

SAMPLE ID:

DATE SAMPLED:

TIME SAMPLED:

GW-608

6/17/970900

INSPECTOR/SAMPLER:

SAMPLE LOCATION:

FAX RESULTS RECEIVED:

M HOUGHTON

RW-5

6/23/97

PARAMETERS RESULTS (mg/L)

PCPACENAPHTHENEACENAPHTHYLENE

ANTHRACENEBENZO (a) ANTHRACENEBENZO (a) PYRENEBENZO (b) FLUORANTHENEBENZO (k) FLUORANTHENECARBAZOLECHRYSENE

DIBENZ (a,h) ANTHRACENEFLUORANTHENEFLUORENEINDENO (1,2,3-cd) PYRENENAPHTHALENEPHENANTHRENEPYRENETOTAL ORGANIC CARBON

< 0.01< 0.01< 0.01

< 0.01<0.01< 0.01< 0.01< 0.01

< 0.01< 0.01

< 0.01< 0.01< 0.01<0.01< 0.01< 0.01< 0.01

1.6

Total PNA's 0.16

lgonzale
003617
Page 14: ADPC&E MONTHLY WELL REPORT NO. 41 FOR JUNE 1997 · 0.14

CHEMICAL WASTE MANAGEMENTOLD MIDLAND PRODUCTS SITE

PROJECT NO. 290001

GROUNDWATERLABORATORY RESULTS SUMMARY SHEET

REPORT NUMBER : 41

WELL SAMPLE WAS NOT COLLECTED AT RW-6 THIS MONTH

SAMPLE ID:

DATE SAMPLED:

TIME SAMPLED:

GW-

6/17/970900

NSPECTOR/SAMPLER: M HOUGHTON

SAMPLE LOCATION: RW-6

FAX RESULTS RECEIVED: 6/23/97

PARAMETERS

PCPACENAPHTHENEACENAPHTHYLENEANTHRACENEBENZO (a) ANTHRACENEBENZO (a) PYRENEBENZO (b) FLUORANTHENEBENZO (k) FLUORANTHENECARBAZOLECHRYSENEDIBENZ (a,h) ANTHRACENEFLUORANTHENEFLUORENEINDENO (1,2,3-cd) PYRENENAPHTHALENEPHENANTHRENEPYRENETOTAL ORGANIC CARBON

RESULTS (mg/L)

Total PNA's 0.00

lgonzale
003618
Page 15: ADPC&E MONTHLY WELL REPORT NO. 41 FOR JUNE 1997 · 0.14

CHEMICAL WASTE MANAGEMENTOLD MIDLAND PRODUCTS SITE

PROJECT NO. 290001

GROUNDWATERLABORATORY RESULTS SUMMARY SHEET

REPORT NUMBER: 41

SAMPLE ID:

DATE SAMPLED:

TIME SAMPLED:

GW-6096/17/970900

NSPECTOR/SAMPLER:

SAMPLE LOCATION:

FAX RESULTS RECEIVED:

M HOUGHTON

RW-7

6/23/97

PARAMETERS

PCPACENAPHTHENEACENAPHTHYLENEANTHRACENEBENZO (a) ANTHRACENEBENZO (a) PYRENEBENZO (b) FLUORANTHENEBENZO (k) FLUORANTHENECARBAZOLECHRYSENEDIBENZ (a,h) ANTHRACENEFLUORANTHENEFLUORENEINDENO (1,2,3-cd) PYRENENAPHTHALENEPHENANTHRENEPYRENETOTAL ORGANIC CARBON

RESULTS (mg/L)

< 0.20.93

< 0.20.39

< 0.2< 0.2<0.2< 0.2< 0.2< 0.2< 0.20.900.77

< 0.20.361.70.652.0

Total PNA's 7.50

lgonzale
003619
Page 16: ADPC&E MONTHLY WELL REPORT NO. 41 FOR JUNE 1997 · 0.14

CHEMICAL WASTE MANAGEMENTOLD MIDLAND PRODUCTS SITE

PROJECT NO. 290001

GROUNDWATERLABORATORY RESULTS SUMMARY SHEET

REPORT NUMBER: 41

SAMPLE ID:

DATE SAMPLED:

TIME SAMPLED:

GW-610

6/17/970900

NSPECTOR/SAMPLER:

SAMPLE LOCATION:

FAX RESULTS RECEIVED:

M HOUGHTON

RW-8

6/23/97

1 PARAMETERS

PCPACENAPHTHENEACENAPHTHYLENE

ANTHRACENEBENZO (a) ANTHRACENEBENZO (a) PYRENEBENZO (b) FLUORANTHENEBENZO (k) FLUORANTHENE

CARBAZOLECHRYSENE

DIBENZ (a,h) ANTHRACENEFLUORANTHENE

FLUORENEINDENO (1,2,3-cd) PYRENENAPHTHALENEPHENANTHRENEPYRENETOTAL ORGANIC CARBON

RESULTS (mg/L)

0.240.049

< 0.01

< 0.01<0.01< 0.01< 0.01< 0.01

< 0.01< 0.01

<0.01< 0.01

< 0.01<0.01< 0.01< 0.01< 0.01

2.4

Total PNA's 0.20

lgonzale
003620
Page 17: ADPC&E MONTHLY WELL REPORT NO. 41 FOR JUNE 1997 · 0.14

P4S I P4D

oX

(/I

Q;

LEGEND

MW-5S

P-5S-c-I

RW-1

350

DEEP MONITORING WELL

DEEP PIEZOMETER

2" CARRIER HOPE AIRLINE

2" CARRIER HOPE PIPELINE6" CONTAINMENT HOPE PIPELINE

RECOVERY WELL

GROUND-WATER CONTOUR

>UOC CMK UTT

DEEP POTENTIOMETRICSURFACE CONTOURS

(JUNE 1997)

REPORT # 41

CHCCXCD: 5P

07/28/9707/28/9707/28/97

OHM RemediationServices Corp.HougUin. TeziiA SubfidlBr? of OHW CorporaUon

PROJECT NUMBER 31001 PLOT 0*TI: 07/28/97

lgonzale
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Page 18: ADPC&E MONTHLY WELL REPORT NO. 41 FOR JUNE 1997 · 0.14

P4D

<5XoICO

Q:

P6S'i P6D

P-5

MW

3349.83

W-ID

351.34

^349.67

349.55

MW

w-r350.20

529.8C

332.85

RW-8325.97

W-9S330.58

MW-IOD

20S14 M

6S

VEL ROAD

341.12

V-8Di iMW-£S

336.27

W>

TRSTE WATER

EATMENT PL

MW-5S

334.77

NT

LEGEND

MW-5S

-f

P-5S ,

RW-1

350

SHALLOW MONITORING WELL

SHALLOW PIEZOMETER

2" CARRIER HDPE AIRLINE

2" CARRIER HDPE PIPELINE6" CONTAINMENT HDPE PIPELINE

RECOVERY WELL

GROUND-WATER CONTOUR

SHALLOW POTENTIOMETRICSURFACE CONTOURS

(JUNE 1997)

REPORT # 41

CHCCKCO: SP

07/28/97

07/28/97

07/28/97

OHM RemediationServices Corp.Houiton. T<»iA Subiidlary of OHM CorporcUon

PROjeCT NUU8ER 31001 PtOT DATE: 07/28/97

SHEET NUMBER

lgonzale
003622
Page 19: ADPC&E MONTHLY WELL REPORT NO. 41 FOR JUNE 1997 · 0.14

CHEMICAL WASTE MANAGEMENTOLD MIDLAND PRODUCTS SITE

PROJECT NO. 290001

RECOVERY WELL WATER ELEVATION CHECK

MONTH OF: June '97

Recovery Well No.

RW-1RW-2RW-3RW-4RW-5RW-6RW-7RW-8

TOP OFCASING

ELEVATION

347.50346.98346.44345.99345.46

347.26347.24347.17

DEPTH TOWATER

(FT.)

23.425.522.121.531.0

20.9

23.021.2

GROUNDWATERELEVATION

324.10321.48324.34324.49314.46326.36

324.24325.97

TOBOTTOM

(FT.)

29.028.728.928.533.4

28.9

26.628.8

BOTTOMCONDITION

SOFTSOFTSOFTSOFTSOFT

SOFT

SOFTSOFT

Groundwater level measurements taken on June 30, 1997.

lgonzale
003623
Page 20: ADPC&E MONTHLY WELL REPORT NO. 41 FOR JUNE 1997 · 0.14

CHEMICAL WASTE MANAGEMENTOLD MIDLAND PRODUCTS SITE

PROJECT NO. 290001

MONITORING WELL WATER ELEVATION CHECK

MONTH OF: June '97 "

WELL NO.

MW-1SMW-1DMW-3SMW-3DMW-5SMW-8SMW-8DMW-9SMW-9D

MW-10SMW-10DMW-12S

MW-16SMW-17SMW-18S

MW-18D

MW-19SMW-19DMW-20SMW-20D

TOP OFCASING

ELEVATION

358.5358.9350.3350.2

341.97347.17346.17348.68349.27

343.07343.61351.05

353.78351.33349.96350.37

350.82351.13352.34352.52

DEPTH TO WATER(FT.)

8.37.6

20.521.37.2

10.912.418.1

17.6

7.17.8

1.5

16.416.118.0

19.2

17.720.116.216.1

GROUNDWATERELEVATION

350.20351.30329.80328.90334.77336.27333.77330.58331.67

335.97335.81349.55

337.38335.23331.96331.17

333.12331.03336.14336.42

DEPTH TOBOTTOM (FT.)

19.244.024.138.620.622.344.420.5

42.9

20.437.321.7

31.125.526.7

39.9

26.940.331.442.0

BOTTOMCONDITION

hardhard

oily/hardoily/hard

hardhardsofthardhard

hardsoftsoft

softhardsoft

soft

oily/softoily/softoily/softoily/soft

Groundwater level measurements taken on June 30, 1997.

lgonzale
003624
Page 21: ADPC&E MONTHLY WELL REPORT NO. 41 FOR JUNE 1997 · 0.14

CHEMICAL WASTE MANAGEMENTOLD MIDLAND PRODUCTS SITE

PROJECT NO. 290001

PIEZOMETER WATER ELEVATION CHECK

MONTH OF: June '97 "

WELL NO.

P-2SP-2DP-3SP-3DP-4SP-4DP-5SP-5DP-6S

P-6DP-7SP-8S

TOP OFCASING

ELEVATION

360.54360.18349.92350.09345.37

345.12352.93352.41

349.26

349.36352.15352.07

DEPTH TOWATER

(FT.)

9.29.08.811.29.69.4

3.12.816.4

18.82.32.4

GROUNDWATERELEVATION

351.34351.18341.12338.89335.77

335.72349.83349.61332.86

330.56349.85349.67

DEPTH TOBOTTOM

(FT.)

22.936.220.842.320.140.221.340.820.4

39.921.421.4

BOTTOMCONDITION

HARDSOFTHARDHARDSOFTHARDHARDSOFTHARD

SOFTHARDSOFT

' Groundwater level measurements taken on June 30,1997.

lgonzale
003625
Page 22: ADPC&E MONTHLY WELL REPORT NO. 41 FOR JUNE 1997 · 0.14

CHEMICAL WASTE MANAGEMENTOLD MIDLAND PRODUCTS SITE

PROJECT NO. 290001

REPORT NUMBER: 41

JUNE 1997

SUMMARY

Daily and Monthly WWTP discharge limits were met for all parameters with oneexception. Oil/Grease for the bi-weekly (6/10-6/11/97) water treatment effluentsample was 22 measured against a discharge limit of 15. The monthly averageoil/grease value was well within limits.

A summary of the chloride results of the WWTP effluent stream indicates aconsistently elevated chloride level during the middle of the month. The monthlyaverage chloride discharge exceeded the 250 mg/L limit.

Parameter (mg/L)

Chloride

Monthly Average

Effluent Sampling Date

June 3

240

NA

June 10

250

NA

June 16

290

NA

June 24

270

262.5

The total recovered groundwater for this month is 92,200 gallons. The totalgroundwater recovered to date is 4,658,920 gallons. The highest volume wasrecovered from RW-3 (34,700 gal.) and the lowest recovery was from RW-1 (1,880gal.). One WWTP shutdown occurred over the June 8-9 weekend due to adiaphragm pump shutdown. The resulting high water (influent) level in theoil/water separator forced a shutdown of the recovery wells. The pump and WWTPwere back on-line on June 10th.

On June 10th, the pump at well RW-6 was removed and the controller was returnedfor repair after the pump was observed to be running continuously and not cyclingproperly with the pump controller. During the RW-6 downtime, the RW-3 pumpwas lowered one foot and the pump cycle was increased to every 10 seconds. Thiswas an attempt to maintain groundwater recovery volumes while RW-6 was out ofservice. Well RW-6 was returned to service on June 25th. The flowmeter at RW-5was replaced during the week of June 23rd.

lgonzale
003626