ML20249B776

Rev 4 to Hwm 15.1-7, Spill Prevention Control & Countermeasure Plan

ML20249B776
Person / Time
Site:	Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png
Issue date:	02/19/1997
From:	CONNECTICUT YANKEE ATOMIC POWER CO.
To:
Shared Package
ML20249B768	List: CY-98-093, NPDES Noncompliance Notification:On 980202 & 0413,two Sixty Day Oil Spill Repts Submitted to Epa,Describing Sheens, Observed at Water Intake Structure.Tank Considered to Be Permanently out-of-service ML20249B776
References
HWM-15.1-7, NUDOCS 9806240187
Download: ML20249B776 (27)

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- O CONNECTICUT YANKEE ATOMIC POWER COMPANY HAZARDOUS WASTE MANAGEMENT PROCEDURE

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Spill Prevention Control and

- Countermeasure Plan .

HWM 15.1-7 Rev. 4 VERIFY MOST RsCENT REVISION

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j AGAINST MDI:

INITIALS DATE Approval: lb r- FaMam Neck Station Vice P@i PORC Mtg. No.: 87'M / Date: B"M-97 Effective Date': M Y -i7 Levelof Use Rermusible Individual:

Information Car A.Charest n .

0806240187 900611 3 DR ADOCK 050 58 of 59 ACP 1.2 6SB, Original

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• CHANGES TO HWM 16,17. Soll! Prevention and Countermeasure Plan Page 1 Of 15: add REVIEW DATE of'7/14/97*

add PERFORMED BY *P. Brindamouf Page 3 of 15: added certmosuon by Jeffery Sibby, Registered Proffessiona! Engineer Page 4 of 15: change Review by: from *Gunti G. Goncarovs* to

• Scott R. Herd' ,

Page 5 of 15: change A.to read: -

• Apr!! 25,1997 Approximately 1/2 gallon of oil spilled from a malfunctioning truck engine onto the site access road. It flowed to a nearby storm drain which led to the pond. Oil booms placed at the mouth of the drain and pads placed onto the initial spill area

. colleded the oil, which was disposed of.*

Page 10 of 15: under STEP, list:

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• Annual Review

• 1 *Page 3*

3 *Page 4*

9 *Page 5*

Page 10 of 15: under CHANGE, list:

l 'Added* -

4 *P.E. Certmcation-Changed named

• 3 **Added desenption of 4 oil spill

• Page 10 of 15: under REASON, list j

• Performed by P. Brindamour Required: 40 CFR 112' g*Different g* Chemistry Manager 4* Required: 40 CFR 112*

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FA191007 EWM 15.1-7 REV. 4 1 . . .

ANNUAL REVIEW SPILL PREVENTION CONTROL AND COUNTERMEASURE PLAN Inspections conducted per EPD 6.07," Audit of Compliance with SPCC Regulations"

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REVIEW DATE PERFORMED BY REVIEW DATE PERFORMFD BY 7/30/84 M. D. Quinn 10/23SO S. R. Matthess 11/12/84 M. D. Quinn 4/362 G. Goncarovs 7/5/85 S. R. Matthess 4/4S3 C. A. Charest

. S/27/86 S. R. Matthess . 6/164 C. A.Charest 8/1/87 S. R. Matthess 10f23SS C. A.Charest

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4/4/88 S. R. Matthess 12/1296 C. A. Charest l l'0/23/89 S. R. Matthess '1 40 1of15

FEB1 ') 397

• , . HWM 15.1-7

• REV.4 l

SPILL PREVENTION CONTROL AND COUNTERMEASURE PLAN (SPCC, May 1991, Rev. 5)

C'ONNECTICUT YANKEE ATOMIC POWER COMPANY HADDAM NECK STATION This plan describes the procedures adopted to

'- prevent the discharge of oil into the navigable waters of the United States, as required by 40 CFR Part .

112, Environmental Protection Agency, Oil Pollution Prevention, non-transportation related onshore and offshore facilities.

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. 4 HWM 15.1-7 REV. 4 r' FORTIFICATION ,

RE: Connecticut Yankee Atomic Power Company Haddam Neck Plant I hemby certify that in accordance with 40 CFR Section 112.3(d), I have examined the facility named above that I am familiar with the provisions of 40 CFR Part 112, and that this plan has been prepared in accordance with good engineering praedces.

. SIGNED: ,

}[L Y f a l} 91-Ji m ey K /E:4.ly,pg .

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Registered Professional Engineer, State of Conneedent Date: 7// y/g 'y

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- HWM 15.1-7 REV.4 GENERAL The Connecticut Yankee plant is located in the Town of Haddam on the East Bank of h %ecdat River.

The reactor is a pressurized light water moderated and cooled system.

The 616.2 MW turbine is a tandem compound hnit. It includes a double flow, high pmssure turbine and two double flow low pressure turbines.

The individual responsible for oil spill prevention and control is the Chemistry Manager.

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Review by: Gunti G. Goncarovs l Date 9

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• .MWM 45.1-7 REV.4 A. PREVIOUS OIL SPILL EVENTS IN THE PERIOD 1/11n3 211/19/96 March 28,1973

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sleft the The #2B emergency diesel generator fuel oil day tank overflowed when an vi l to the floo tank imanandad while filling, spdhng,approximately 1500 gallons of #2 fuel oi the diesel room and through floor drams mto #2 umt discharge tunnel. #2 discharge canal was not in service, consequent y, the oil did not Gow out of the tunnel but remained within the plant. (DID NOT ENIER NAVIGABE WATERS)

June 27,1973

1. 2 emergency diesel a fuel oil day tank overflowed spilling

• ximately 70 gallons of #2 diesel fuel oil to the floor of the diesel room and through floor into #2 unit

. discharge amnel. 'Ibe oil e=*inaA within the plant. (DID NOT ENTER NAVIGABE WATERS)

November 19,1996 -

A one gallon volume mixture of water and #2 diesel fuel oil was mie=buly disposed ofin an y unlabeled boiler room equipment drain. It entered the discharp tunnel, but was contained before entering the discharge canal, was rep ~M to State and hderal Agencies, and was Q1 r.',

7 cleaned up using oil absorbent booms. (DID NOT ENTERNAVIGABLEWATERS) q B. CORRECTIVE ACTION TAKEN (Prior to Certification)

% 1. Changed the diesel day tank high level alarm to sound in Control Room at any time a

/ highlevel exists. .

2. Extended the diesel day tank overflow pipe and tied into the underground tank vents so that any overflow would go back in the respective 5000 gallon storage tank.

3. Replaced the udnual switch with a push buiton which must be held in to operate the fuel oil transferpump.

4. Installed automatic suction priming for emergency diesel fuel oil transfer pumps to' ensure automatic operation of the pump without operator attendance.

5. Placed a slick bar across discharge canal.

6. Stored slick bar at discharge canal outfallin the event of an oil spill.

7. Built wall around the 42,000 gallon diesel oil storage tank transfer pumps.

8. Plugged floor drains to discharge canal amund all oil storage tanks and equipment with j large oil reservoir. .

9. 1 mhalad all Door drains in the boiler room. (h+aA all drains within the protected area to ensure that they were properly labeled to prevent unauthorized discharges.

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".4 FEB1937 MWM 15.1-7 REV. 4 ]

C. - POTENTIALFOREQUIPMENTFALURE Experience at Caa+ Yankee indicates that with the addition of the conective acdon stated above, there is romennahle assurance that equipment failure will not occur.

D. OIL SPILL CONTINGENCYPLAN

1. This plan includes the action to be taken in the event of an oil spill and lists the equipment available for use in such an emergency. (See Appendix B).

' A copy is available on site for laWon by .yrwydate authorities.

E. CONTAINMENT STRUCTURES i

1. DIKES

a. The #2 fuel oil storage tank is surrounded by an earthen dike which is lined with an :=,r+===hle barrier. -

b. The #2 fuel oil storage tank transfer pumps art surrounded on 3 sides by a concrete wall, and are mounted on a concrete slab scaled into the berm area.

c. A dike constructed of steel surrounds the turbine lube oil tank and lube oil purifier.

' d. The oil storage room is enclosed on four sides by concrete block and a steel barrier has been installed around the oil storage room entrance doors and

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/ ventilation vents. .

e. A dike surrounding the sparc power transformer drains to a sump, which pumps over to a 27,000 gallon holding tank.

f. The emergency shutdown risk diesel generator (EG-7) has an 800 gallon concrete containment inc.oryvided below it's structural foundation to contain a fuel oil leak. Stormwater is released manually after inspection by the Chemistry Dry-Loe.st F. CONFORMANCE WITH APPLICABLE GUIDELINES

1. FACILITY DRAINAGE

a. Drainage from diked areas

1. Drainage from the 42,000 #2 fuel oil storage tank diked area is rer.troed by locked closed drain valve. Should it be necessary to open this valve, prior- 'on will be made to ensure that no oil will be allowed to e.

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b. In-Plant Drainage

1. Drainage from the by seal oil system is to the condent=* pit and willbe pn=aad back to oil storage room sump.

2. Drainage from the oil room sump under manual control to an outdoor hose connection to a tank truck. A cap md isolation valve is located upstream of the base connection. The nose nannartion is capped off I when notin usel

3. Drainage from the 2,000 gallon used oil tank is by manual control to a tank truck. An isolation valve is located s of the hose connection. The hose connection is off when notin use. All ]

tanks are equipped with an overflow to the oilroom sump.

4. All floor drains around equipment where oil leakage is possible have been plugged, or are routed to the turbine hall floor sump collection system. -

c. Oil Storage Tanks Lead Within the Plant

1. One 10,000 gallon nubine lubricating oil reservoir with high level

. alarm and visualindicator.

2. Two 12,500 gallon lubricating oil storage tanks with visual indicators.

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3. One 2,000 gallon used oil storage tank equipped with a visual level indicator. One turbine lube oil punfier.

4. Two 500 gallon diesel oil day tanks eguiy# with level indicators add high level alarm, Two 5,000 gallon diesel oil underground storage

. tanks equipped with high level alarm and visual indicators.

5. One above ground 42,000 gallon storage tank equipped with visual indicator.

6. One 275 gallon diesel driven fire pump storage tank equipped with visualindicator.

7. One 500 gallon Maintenance Dep uoerd diesel oil tank (portable).

8. One 275 gallon Security System Diesel Oil Tank.

9. Two 500 gallon diesel oil tanks used in the Health Physics #%mktry I Storage Building. i

10. One 1000 gallon diesel tank in the EOF.

11. 6,000 gallon underground unleaded gasoline tank.

12. Drum storage in waste oil / hazardous storage area (Est. 50 drums).

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13. Drum storage in new lube oil storeroom (Est. 50 dnuns). '

14. 4,000 gallon diesel fuel oil (#2 Kerosene) beating oil tank.

d. OtherOilC-aiaiagEq6 =

l 1. Electrical Egipmaa' containmg oillocated outside is as follows:

l Main PowerTransformer319 26,830 gallons Station Service Station Transfonner '199

. 4,900 gallons Station Service Station Transformer :489 4,900 allons Station Service Station Transformer X9 2,785 ons 389 and 399'De Breaker 1,680 allons SPARE Station Service Station Transforna 2,954 allons SPARE PowerTransformer 13,333 gallons SPARE PowerTransformer OCB (three @) 73 gallons SPARE Power Step Up Transformer 510 gallons

c. Facility TransferEquipment ,

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1. The fill piping for #2 fuel oil is above ground.

The #2 fuel oil piping between the 42,000 gallon storage and plant is

. underground.

2. The fill pipe connection for the turbine lube oil storage tank is above j ground.

3. The discharge pipe connection for used oilis above ground.

All fill and pipe connections are capped when not in use and have a closed isolation valve. .

The turbine lube oil cooler drain valves, turbine lube oil tank drain valve and lube oil storage tanks dmin valves are locked closed.

The fill valves are closed when not in use.

There is no above ground oil piping that would be in the path of vehicular traffic around the site.

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MWM 15.1-7 REV. 4

f. Facility forTankTruck Unloadmg

1. The tank loadmg facility located outside the turbine building for the turbine oil storage tanks is a three inch line to the top of each tank.

2. The tank truck loadmg facility for the #2 fuel oil storage tank is inside a chkod area.

. Norinally there are one or two p-~1in anendance at all times fuel unloading is in progress.

G. OTHER SPILL PREVENTION AND CONTAINMEN" PROCEDURES .

Procedure HWM 15.1-2, " Connecticut Yankee Hazardecs Waste Contingency Plans", has been issued to establish a mechaniam by which oil and chemir=1 spills are promptly reported to the .yywydate governmental agencies. This procedure also addresses spia cleanup procedures. .

H. INSPECTION AND RECORDS An SPCC review shall be made annually, signed, dated by the person performing the inspection, approved by the Chemistry Manager and countersigned by a Director. Inspection records will be retained with the station copy of the SPCC.

SPCC plant inspections shall be conducted weekly by Chemiwy for the waste oil room and l stores for the warehouse. Nuclear Systems Operators obtain readings each shift in the yard for j

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level and general equipment status, also they mspect the fuel oil tanks and pumps.

SECURITY The plant complex is enclosed by a continuous security fence and gates are kept closed and locked. Entrance is through a vehicular gate and guardhouse which is man ~A continuously.

The plant is attended 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> per day, every day of the year.

1. The main flow drain valves, and other valves that would mrmit direct outward flow of the tanks contents are closed and either locked or blankec with flanges or plugs.

2. The unloading connections of the oil pipelines are valves such that the valves can be closed and capped by blank flanges or plugs.

3. Except in an extreme case or emergency, unloadmg of fuel takes place during daylight hours.

J. PERSONNEL 1 RAINING AND SPILL PREVENTION PROCEDURES

. 1 are instructed in spill yMon and containment procedures as Station part of theiroperating normal W. p-=dhg requirements. Agendices B and C are the special proc utilized for this purpose. Annual General Emp oyee training will review salient points of the SPCC with stauon personnel.

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SUMMARY

OF CHANGES STEP CdANGE REASON Annual Revww Added. Performed by C. Charest.

General Changed named. Difftent hm Manager.

Page 4. Section A Added. Had a spill on 11/19/96.

Page 4, Secuon B Added. rwin f aw >

Page 5, Section E Added E.1.f. Chemist f=e=k Appendix A Added. Chemist f*Ahek l

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. HWM 15.1 7 REV. 4 APPENDICES A. Preventive Measures

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B". Containing'and Cleanup of Oil Spills C. Site Plan D. TankInspection Record l

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. HWM 15.1-7 REV. 4 K.-

SUMMARY

OF CHANGES STEP CHANGE REASON Annual Review Added. Performed by C. Charest.

General Changednamed. Different m: =_7 Manager.

Page 4.Secuon A Added. Had a spill on 11/19/96.

Page 4, Secuon B Added. Chemist fWbek Page 5. Secuon E Added E.1.f. Cnemist f=@et Appendix A Added. l Chemist feeek l

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?EB19 SS7 H W M i5.1-7 REV.4 APPENDICES A. Preventive Measures

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B'. Contaimng'and Cleanup of Oil . Spills C. Site Plan D. TankInspection Record l

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EE619397 HWM 15.1-7 REV. 4

- . APPENDIX A J 1

PREVENTIVE MEASURES l

5anges carried out in order to reduce the possibility of oil spill events.

1. Erected a barrier around unbine' lube oil tank, lobe oil purifier and seal offlube oil ,

- storage room. This enclosed barrier will be sufficient to contain the total volume of the l turbine lube oil tank, the two nubine oil storage tanks and the used oil storage tank. l

2. The rhmi~y Manager will ma'mta'm viable SPCC program and will ensure familiMty of the program with the station staff through annual retraining and written procedures.

3. Admmistrative pro"cedures ADM 1.1-76. " Reporting Oil and Chemical Spills", and i' ADM 1.1-86, " Chemical Spills", have been approved by the Station Vice President.

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4. The udbine hall floor sump collection system has been m~M*A such that all fluids are diverted to a 15,000 gallon bolding tank.

5. A transformer oil collection tank has been installed on the West bank of the discharge canal. Purpose is to collect rain water and runoff from the spare transformer area prior -

to sampling and discharge to the canal, preventing transformer oil discharge.

6. Hazardous Waste Management Procedure HWM 15.1-2," Connecticut Yankee IIazardous Waste Contingency Plan" has been written to supersede ADM 1.1-76 and

• ) ADM 1.1-86 as noted above in Step 3.

The 42000 gallon fuel oil storage tank bermed area has been enlarged to hold 110% of 7.

the tank capacity. An impermeable barrier has been installed in the term. The transfer pumps are mounted on a concrete cap which is sealed into the berm liner. Four momtoring wells ring the tank and are sampled on a monthly bases.

8. Labeled Boiler room floor drains, warning personnel not to dispose of anything in them.

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. MWM 15.1-7 REV. 4 APPDTDIX B CONTAINING AND CLEANUP OF OIL SPILLS l 1.0 PURPOSE of this procedure is to provide instructions for containing and cleanup of APPLICABILITY 2.0 2.1 This p A applies to personnel called to respond to an oil spi 1L

3.0 REFERENCES

a 3.1 HWM 15.1-2," Connecticut Yankee Hazardous y Contingency Plan".

K43fn 4.0 PREREQUISITES ,

4.1 None 5.0 PRECAUTIONS 5.1 When dealing with an oil spill, all efforts should be made to protect the

. environment.

6.0 PROCEDURE .

S 6.1 Refer to HWM 15.1-2 to implemerit this procedure. ,

6.2 Notify Duty Offiera and refer to HWM 15.1-2.

6.3 For small spills surround area with absorbent such as ' dry and wipe up spillwith rags, or other absorbent ==WmL A spill inetislocated opposite the ' area.

6.4 For large oil spills that threaten to contaminate the surrounding water, place the slick bar stored in box on West bank of Discharge Canal across the discharge canalto prevent oil from spreadmg.

6.5 CMia immediate search for source of spill and secure to limit amount of spillage.

6.6 Use Spill Control Equipment stored in the Stomoom for larger spills, i

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FEB'1 '".007 HWM 15.1-7 REV. 4 APPENDIX D TANKINSPECTION RECORD (see Tank Inventory Control Coordinator in the Enviranmaat*1 Programs D j=m) 9 l

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ATTACKMENT C ANALYTICAL RESULTS

4 Northeast Utilit>es Semce Company Northeast n===en=i. ne.ith a sarcty semees Utilities System 36 3_,m,,,y Millstone Nuclear Power Station  !

' I Rope Feny Road Waterford.CT 06385-0128 (860) 444-423B April 23,1998 i

Dear Paul,

On April 14,1998, I was asked by CY staff to inspect and evaluate foaming observt d in the discharge canal above the booms across the welr. I arrived at the discharge site at approximately 12:30 p.m. and observed a small area of patchy foam (<1 cm thick) sulmunded by a light surface film. This accumulated material was primarily restricted to the waters between the sheet pile bulkhead that extend about 10-15 m directly in front of the dischaitje.

The foam was light belge in color and resembled that commonly observed in moving freshwater such as streams and wave-swept lake shores. There was no observable irridescent sheen usually associated with a petroleum product spill. I collected a sample of the foam and t6ok it to Northeast Utilities Environmental Laboratory (NUEL) for more detailed evaluation. At NUEL, this sample was examined under a compound microscope, which revealed a number of live microorganisms including rotifers, ciliates and diatoms, along with fragments of organic material from plant detritus. No observable source of the foam was noted in the sample, which is not surprising given that dissolved organic material from natural sources is typically responsible for such surface foaming in natural waters. It is my professional judgement that these natural biologeal sources are likely the cause of the foam in the CY discharge. Should you have any further questions, please let me know.

Sincerely, i W p snw John T. Swenarton Scientist Northeast Utilities Environmental Laboratory PO Box 128 - Millstone Station Waterford, CT 06385 t

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ENVIRONMENTAL SCIENCE CORPORATION Great River Center,362 Industrial Park Road Middletown, CT 06457, (860) 632-0600 FAX (860) 632 7143 Web Site: www.ese-lab com April 21,1998 Ms. Pat Zabrocki CT Yankee Atomic Power Company 362 Injun Hellow Road East Hampton, CT 06424 i RE: ESC # 9804000169 CY INTAKE

Dear Ms. Zabrocki:

Enclosed please find the results of analysis for 2 samples received at Environmental Science Corporation on April 14,1998. The analyses associated with these samples include:

1 8015B Diesel Range Organics by GC/FID Should you have any questions regarding the enclosed material, or require additional information, please contact Client Services at (860) 632-0600.

Sincerely, 1

Kyle F. Gross Laboratory Director I

cc: Ed Keith l

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Project Narrative ESC # 9804000169 The following samples have been review'ed for accuracy and completeness.

Any comments associated with your sample results are outlined below.

CY intake 201 CY Discharge 201 l

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l. ENVIRONMENTAL SCIENCE CORPORATION l

Great River Cer.er. 362 Industrial Park Road Middletown, CT 06457. (860) 632-0600 -

FAX (860)632 7743 Web Site: www.ese-lab.com Lab Report Number: 9804000169 Client: CT Yankee Atomic Power Company Ms. Pat Zabrocki Purchase Order #: 017800 Project Name: CYINTAKE Date Received: 04/14/98 Project Number:N/A Contract Number: N/A S mple Prep information Client ESC Date Datemme Pr:p Sample ID Sample ID Sampled Matrix Prepped Analyst Hold be

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dd/iIIE8 Aq'U$obS"d'rab dd/iI/E5"iS[bO '85" 1'd'b y d'd'dYi'"""" CY'lrSta'k"e"201 5'1"EE'8 04/13/98 Aqueous Grab 04/17/98 13:00 JS 14 DAY CY Discharge 201 51269 1

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04/21/98 Me ' A _

Date Reported Laboratory Director

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,4 ENVIRONMENTAL SCENCE CORPORATION Great River Center,362 Industrial Park Road Middletown,CT06457 (860)632-0600 FAX (860) 632 7743 Web Site: www. esc-Ir.b.com Lab Repon Number: 9804000169 Client: CT Yankee Atomic Power Company Ms. Pat Zabrocki Purchase Order #: 017800 Project Name: CY INTAKE Date Received: 04/14/98 Project Number:N/A Contract Number: N/A Client Sample ID: CY Intake 201 CY Discharge 201 ESC Sample ID: 51268 51269 '

Iacation:

Matrix: ueous Grab ueous Grab Date Sampled: Aq/13/98 04 Aq/13/98 04

• • TEST ** Uniu: mg/L mg/L Date Anal ed: 04/20/98 04/20/98 Time Ana 2ed: 20:24 21:17 A yst: AP AP 8015B Diesel Ranae Oraanics by GC/FID

1. 1. Dilution Factor ## 1.0000 1.0000 Di:sel Related Organics < 100 < 100

<- Below Practical Quantitation Limit Soils analyzed on dry weight basis.

N/A Not Applicable " Surro ate

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04/21/98 Date Reported Laboratory Director

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l Run file  : c :\ st a r\mc dule16\ 80420:106,run

, Method file : C:\ STAR \ MODULE 18\DRO MTH Ocmple ID  : $1209 Injoetion 'Date r' 20-APF,-96 9:17 PM Caiculat 2on Date: 20-APR-98 9:59 FM Op0:ator a KL/AP D+ +..r cto r Type : ADCE (10 Volts)

M rkstat:cn Eus Address  : IS InOtrument : B3 3700 mod 1B Sample Rate  : 2.50 H Chennel  : A=A Run Time  : 42.007 min

• • • • • • • • • • • St a r Chromatoc raphy Wor ker st s en * * * * * *

• Ve r:1on 4. 51 * * * * * * * * * * * * *

• I j **h a r t Spe+d = 0.49 cm/ man Attenuation = 1 Zero Offset = 211 r

Stort T2me = 0.000 min End 7:n.o - 42.007 min Min / Tick = 1.00 0 4a -01 C2 C1 CC C' C_g i mwst

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Run file  : c \ st.sr\ module 18\ 60420005.run

• Method File : C:\ STAR \ MODULE 18\DRO.MTH Sample ID.  : 51268 Injoetion Date: 20-APE-98 B:24 PM Calculation Date: 20-APR-98 9:06 PM l

Cparctor  : KE/AP Detector Type: ADCE (10 volts)

Workstation: Bus Address : 16 InOtrument : 83 3700 mod 18 Sample Rate : 2.50 Hz Ch:nnel  : A=A Run Time  : 42.007 min

• • • • • • • • • • • Ster Chromatography Workstation ******a Vers:lon 4.51 **************

Chart Speed = 0.49 cm/ min Attenuation = 1 2ero offset = 20%

Str.rt Tine = 0.000 min End Time - 42.007 min Min / Tick = 1.00

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• " Environmental Science Corporation "*

• " METHOD DRO ***

DATE: 04/20/08

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l COMPOUND l MATRIX UNITS RESULT l#2 fuel l SOIL , mg/kg < 100

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