ML20196H561

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Forwards Amended Ust Registrations for Millstone Station. Notification Supersedes Previous Registrations & Includes Documentation of in-place Abandonment of Seven Usts at Unit 1 Tank Farm
ML20196H561
Person / Time
Site: Millstone  Dominion icon.png
Issue date: 11/30/1998
From: Jacobson P
NORTHEAST UTILITIES SERVICE CO.
To:
CONNECTICUT, STATE OF
References
D13566, FCR-98-ENV-160, NUDOCS 9812090103
Download: ML20196H561 (27)


Text

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. . . . . .. , j Nordienst Nor,heast Nuclear Emergy Company l

Ududes System nom ,,,,,N.,i,,, ,,,,,s, i. ,

, , R8Pe Ferry Reed j 4

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' Weserford.Cr 06885 0128  ;

(860) 447-1791 est 2885 i s

, November 30,1998 [

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FCR-98-ENV-160

. D13566  :

UST Program Coordinator '

Department of Environmental Protection j

, 79 Elm Street.

Hartford, CT 06106-5127 l t

References:

l i

1) Letter (D13311) from Paul M. Jacobson to UST Program Coordinator dated September 25,1998 i i
2) Letter (D13505) from Paul M. Jacobson to Scott Deschefy dated  ;

' November 2,1998  !

3) Letter (D13548) from Paul M. Jacobson to Don Burton dated November 10, _.

1998 i

' 4) Letter (D02306), E. J. Mroczka to Scott Deschefy dated November 17,1988 1

5) Letter (D06683), C. F. Sears to UST program Coordinator dated July 13,1993

. 6) Letter (D04264), E. J. Mroczka to Frank Wacht, UST Program-DEP dated 1 January 4,1991.

7) Letter (D07568), E. J. Mroczka to UST Program Coordinator dated April 26, 1994

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Dear Sir or Madam:

ogg95 V Northeast Nuclear Energy Company (NNECO) hereby submits the attached amended UST registrations for Millstone Station. This notification supersedes previous registrations and includes documentation of the in-place abandonment of 7 USTs at the -

Millstone Unit 1 Tank Farm.

'L 9812090103 981130 pDR ADOCK 05000245 e.j p PM  :

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s l Also included is an amended UST registration for the Millstone Unit 2 emergency diesel. This amendment reflects recent tank tightness data and corrects documentation of the tank life expectancy. Furthermore, the Station Services Tank A1, a 300 gallon concrete emergency spill sump, has been removed from the UST registration.

Unit 1 Tank Farm On September 25,1998, NNECO informed the Department of our inter;t to permanently abandon seven Unit 1 tank farm USTs in place (Reference 1) in accordance with RCSA  ;

22a-449(d)-102(b)(8). This work was completed on October 31,1998, and confirmed in a letter dated November 2,1998 (Reference 2). i On November 10,1998 NNECO submitted (Reference 3) to the DEP Chemical and Oil l Spill Division a report of the presence of subsurface petroleum identified during the j Millstone Unit i Tank Farm site investigation.

All 7 tanks have been emptied, cleaned and filled with flowable grout. All fill lines, pumps, pump housings and other tank appurtenances have been cut and removed.

)

l Associated below ground piping which has not been removed was emptied, cleaned, cut six inches below grade, capped and labeled. All work was conducted in accordance l

with RCSA 22a-449(d)-107(3)(b)(2) and NFPA 30.

l The site was subsequently inspected, and closure commitments confirmed, by Mr.

Mark LeDoux of your Department on November 5,1998. i Copies of the relevant documents are attached for your file. -

l Corrected UST Reaistrations As part of the closure of the Unit i tank farm, NNECO has reviewed previously l

submitted Millstone Station tank registrations. The attached UST registration corrects previous registrations submitted to the Department.

Unit 2 Emeroency Diesel Tank The attached form (Attachment 1) has been amended to include updated tank tightness test data for the Millstone Unit 2 emergency diesel tank.

l Furthermore, NNECO's review of correspondence with the Department indicates that NNECO had submitted an amended UST notification (Reference 4) which changed the life expectancy for the Millstone Unit 2 emergency diesel tank from 25 years to 30  ;

years. This change was based on calculated useful anode life and was consistent with '

other NUSCO tank notifications. A copy of this document is attached.

j On July 13,1998, NNECO submitted an amended UST notification (Reference 5) for  ;

the Unit 2 emergency diesel to include updated tank tightness data. This notification i

~

erroneously listed the tank life as 25 years instead of 30 years. The attached amended notification corrects the life expectancy for the Millstone Unit 2 diesel tank.

Station Services Tank Millstone Station Services Tank A1 is a 300 gallon concrete tank which is not a regulated UST since it is part of the secondary containment system for a hazardous waste storage area. As such, it is regulated under the hazardous waste tank provisions and therefore does not require UST registration.

NNECO previously informed the Department (Reference 6) of its intent to remove Millstone Station Services Tank A1 from the UST registration. However, NNECO's review of correspondence with the Department indicates that NNECO had submitted an

, amended UST notification (Reference 7) which erroneously listed Tank A1 as a flammable liquid UST. The attached amended notification corrects this error and J

removes Station Services Tank A1 from the registration.

i NNECO seeks an opportunity to discuss the above amended notifications with the 4

Department at your convenience. Please call me at (860) 447-1791 ext. 2335 should j you wish to meet or if you have any questions.

l Very truly yours, I A i &M u PaulJacobson L/ -

Manager Environmental Services- Nuclear cc: NRC Resident inspectors i Town of Waterford Fire Marshal

, S. Deschefy (CT DEP) l J. Grier (CT DEP) 3 M. LeDoux (CT DEP)

D. Burton (CT DEP)

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                                                                                               .Sy.stemas,..1986          g              87.88,89.90 f..all rights.; reserved..

r-Tank test. ind isyolem version' 2.T6, icleased 09/19/90 .

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,. Tank.10 - ENERGENCY 01CSEL TANK IDW'282 ,.
           .. tTonk Location . MILLSTONE II ROPE -FERRY RD. WATEREORD, CT Pro' duct in tank - DIESEL. FUEL                                                                                  
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                    . Test. ,pondueled by - MAROLO DE R4GON PENNONI AS60CinJES. TAW 98 4 Ieet.p,i.tinessed .by - NONE                                      ,
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           .The . level data .for thi's. analysis                                  s,_ tai te rat.152 212,59c.and...etade_,a,t.15:4 0. 2.5 . ~ . .--

i.th.The ,., temper.ature , data for . this., analysi's ' star te,.at, .15 :23 311 and.. ends set. ,168.oo 57

    . .The voltage cheinge in, .,.calibr.3f.fon volume of                                                    500 mL was,0s362.,,volte.. ._.,~                    .

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     -       show,p. Ipadings taken.. at the endpoints of the                                           f selected .analysle:.perJod.m',...n ..e l'.;41hhis..A T                    gr.ose ,levpl change .of 243 mL.. in 24,',minytes and,,,26 secgnds... .

l.2 ,.: .,,:Tekinu a11 the datis. ,I.uto . consideration by.perfpr.mi-ng .a cleast.:s.quer.o_ .. Jc/AT.qsression,of level?op. time sives.an auditor pr.obe sl' ope ofi-0.311 y/, ..,.;,,.. 430.0 ' mLZhour_., ,

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l (860) 4471791.ns taas i j

                . September 25,1998                                                                                                                  l FCR-98-ENV-126 D13311
                - UST Coordinator Department of Environmental Protection                                                                                            1 79 Elm Street P.O. Box 5066                                                                                                                 .

Hartford, CT 06102-5066 I i l-

References:

1) Letter (D09298) from D.B. Miller to UST Program Coordinator dated November 14,1995 c

l

Dear Sir or Madam:

Millstone Nuclear Power Station 30-Day Notification for Underoround Storace Tank (UST) Abandonment Northeast Nuclear Energy Company (NNECO), in accor ance with RCSA 22a-449 (d)- 107(b), hereby submits a 30-day notification to permanently close seven underground

                                                                                                                                                   ~

storage tanks (UST's) at the Millstone Nuclear Power Station in Waterford, CT. l These seven UST's constitute the Millstone Unit 1 tank farm. The tanks and their L registration ID's are: 1 25,000 gallon Diesel Fuel (Tank 1.D. - A1) 25,000 gallon Heating I pel (Tank I.D. - B2) 25,000 gallon Heatirio Fuel (Tank I.D. - B3) 25,000 gallon Jet Fuel A (Tank I.D. - D6)  ! 25,000 gallon Jet Fuel A (Tank 1.D. - D7) j 25,000 gallon Heating Fuel (Tank 1.D. - C4)* ' 25,000 gallon Heating Fuel (Tank 1.D. - C5)*

                -
  • Tanks C4 & CS were previously cleaned and temporarily abandoned in place pending the removal of the remaining five tanks (Reference 1).

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1 l Due to structural limitations within the area of the tanks, including a safety related fire l suppression line, NNECO believes that removal of these UST's is a'less desirable  : short term option to meet the tank closure requirements. Accordingly, NNECO proposes to empty, clean and fill these tanks with an inert material for proper  ; cbandonment-in-place in accordance with RCSA 22a 449(d)-1(4)(k)(2) and NFPA 30. As part of the closure process, NNECO will undertake soil sampling in accordance with . RCSA 22a-449 (d)-107 (c)(1) in order to characterize any petroleum contamination  ! cround or under the UST's and will notify the Department of sample results and i remediation options in keeping with applicable UST regulations (RCSA 22a-449 (d)- 106). Should NNECO identify extensive contamination during the site characterization phase i of this project, it may be necessary to remove these tanks during the site remediation  ! process. In this event, NNECO will work with the Department to develop a timeline for I completion of the excavation and remediation work. As you know, NNECO recently made a decision to decommission Millstone Unit 1. As I o result, NNECO may decide in the long term to ultimately remove the abandoned l tanks as part of the decommissioning process. NNECO wishes therefore to retain this as a future option and will inform the Department of its proposed actions in this regard. Please direct questions and any requests for further information to Mr. Paul M. Jacobson, Manager - Environmental Services, Nuclear at (860) 447-1791, ext 2335. Very Truly Yours, NORTHEAST NUCLEAR ENERGY COMPANY -

                                  /?/.

Paul M. Jacobson L/ Manager, Environmental Services - Nuclear cc- Mr. David Garside, Jr. Fire Marshall Waterford Town Hall 15 Rope Ferry Road Waterford, CT 06385 I l i

    .\                                                                    :-
                                                       ; Reference 2 i

Northeas( Northeast Nuclear Energy company Utilities System um.m.e N.cie.,em,si.co. Rape Ferry Road l PoBm128 mat,ero6sas.otas (860) 447-1791 ert2s3s l November 2,1998 FCR-98-ENV-145 NMil Mr. Scott Deschefy  ; Department of Environmental Protection 79 Elm Street P.O. Box Hartford, CT 06102-5066 , l

References:

1) Letter (D13311) from Paul M. Jacobson to UST Program Coordinator dated September 25,1998 i

Dear Mr. Deschefy:

Northeast Nuclear Energy Company (NNECO) hereby submits confirmation of the retirement-in-place of seven Underground Storage Tanks (UST's) in the Unit 1 Tank Farm at the Millstone Nuclear Power Statian in Waterford, CT. These seven USTs constitute the Millstone Unit 1 Tank Farm. A schematic of the tank farm is shown in Figure 1. Their registration ID's are: - 25,000 gallon Diesel Fuel (A1) 25,000 gallon Heating Fuel (82) 25,000 gallon Heating Fuel (B3) 25,000 gallon Jet Fuel (D6) 25,000 gallon Jet Fuel (D7) 25,000 gallon Heating Fuel (C4)* 25,000 gallon Heating Fuel (C5)*

  • Tanks C4 & C5 were previously cleaned and temporarily abandoned in place pending the. closure of the remaining five tanks.

The seven USTs have been abandoned-in-place in accordance with RCSA 22a-449(d)- 1(4)(k)(2), NFPA 30 and Reference 1. Specifically, these tanks were emptied, had contents and sludge removed, and were cleaned and filled with flowable grout prior to October 31, 1998. Representatives of the Waterford Fire Marshall's Office inspected two of these tanks on October 19 & 20,1998 and approved the cleaning of the remaining five UST's and filling all 7 with flowable grout. Additionally, all tank fixtures were cut off and removed along with all above ground piping. Below ground piping has'been emptied, cleaned, cut 6 inches below grade, capped and labeled. Prior to filling these tanks with grout, holes were cut in three tank bottoms and soil samples were taken. Results from the first sample (from tank C4) indicated a Total Petroleum

l.  ?.

1 l Hydrocarbon (TPH) concentration in sunounding soils of 490 ppm. NNECO is awaiting the results from the additional samples from below the other two UST's. It should be noted that the corings from each tank showed that the tank steel was in excellent condition with no

l. corrosion evident and the corings from tanks 82 and D7 contained a bituminous coating on the

! exteriorof the tanks. Accordingly, and in keeping with our discussions of September 28,1998, NNECO will follow up l by November 30,1998 with the results of additional soli samping presently being conducted in l the vicinity of the USTs and win propose a remodsation plan if required, at that time. In that regard, M. Ledoux of your office wiu be visiting Millstone on Thursday, November 5,1998 for the purpose of observing the closure activities completed to date. Please don't hesitate to call me with any questions or requests for further information at (860) 447-1791, ext 2335. Very Truly Yours, l NORTHEAST NUCLEAR ENERGY COMPANY Paul M. Jacobson (/ ' Manager Environmental Services - Nuclear cc: Mr David Garside, Jr. - Waterford Fire Marshall NRC Residents. t I t l l l i i 4 l l .

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      @                                                                                                                                            MILLSTONE NUCtI.AR POvvER STATION                                                                                            WLCOUf PWDer Dic.

n gmy WATERFORD, CONNECTICUT j

rIRNIE

SUMMARY

SITE PLAN N ure 1

                                                                                       .x      . .             .
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     ,                                                                    Reference 3 Northeast                                -

Nor6ew Nudeer Energy coenpaar UtilHies System unene.e Nedeer Powersenden Rape Ferry Reed Pos.atsa v.iedord,er ossasessa (s60) 4471791 eatssss i November 10,1998 ' l i l FCR-98-ENV-150 D13548 Mr. Don Burton Chemicaland Oil Spill Division Department of Environmental Protection 79 Elm Street Hartford, CT 06102 '

References:

1) Letter (013311) from Paul M. Jacobson to UST Program Coordinator dated September 25,1998 l 2) Letter (D13505) from Paul M. Jacobson to Mr. Scott Deschefy dated j November 2,1998

Dear Mr. Burton:

l Millstone Nuclear Power Station _ ! 3-Day Follow-up Notification of the Presence of Subsurface Petroleum identified durina UST Closure Investication +

                     - Northeast Nuclear Energy Company (NNECO), in accordance with RCSA 22a-449(d)-105, hereby submits a report of the presence of subsurface petroleum which was identified during l

the performance of an environmental site investigation to support the Millstone Unit 1 Tank Farm closure der,cribed in Reference 1. l . During the course of conducting the site investigation described in Reference 2,l visible oil was detected. A telephone notification was made to the Chemical and Oil Spills Department on

         ,            11/9/98 (Case #98-07659). The results of chemical analysis on samples taken during the test borings are not yet available, but will be faxed to your office as requested, as soon as NNECO receives them.

i Sample results are available from cores taken through the bottoms of three tanks prior to filling them with flowable grout. In addition, some miscellaneous sample results are also available from trenching and grading operatxms in the vicinity of the Tank Farm. These results are included in a schematic of the Tank Farm in Figure 1. All but two of these samples contain 4 Total Petroleum Hydrocarbons (TPH) in concentrations less than 500 parts per million (ppm). ! The exceptions are suspected to be sampling errors due to contamination from asphalt in one { sample and from the bituminous coating on the exterior of the tank in the other sample.

\. isince the contamination appears to be historical in nature NNECO is unable to estim l amount of product lost. The location of visible oil corresponds to where the fill piping and l pumps were located. l Upon receipt of the sample results from the test borings, NNECO will prepare a more detailed site characterization plan and submit mports required under the UST release reporting regulations to youroffice. Please don't 447-1791, hesitate ext 2335. to call me with any questions or requests for further information at (860 l Very truly yours, NDRTHEAST NUCLEAR ENERGY COMPANY 0 A 5 Paul M. Jacobson V Manager Environmental Services - Nuclear cc: Mr. Mark Ledoux- CT DEP UST Group Mr. Scott Deschefy- CT DEP UST Group i

                                                                                                                   .~

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FIGURE 1 - UNIT 1 TANK FARM SCHEMATIC WITH PRELIMINARY SOIL TESTING RESULTS. (All values = Total Petroleum Hydrocarbons (TPH) in Parts Per Million (ppm) , e . l 4 UNIT 1 CAS TURBINE BUIt.0!NG 225 ppm

                  .6 4 '

D lc75 ppm '

                                                                                                                              *~~

'8 4' 1

  • f
                                   *4s754 ppm                 317 ppm                            270 ppm                         242 ppm 8 2'                     6 2'                                                                       '

9 2' 02 A - 490 ppm az'-3P \ 9 12'

                                                                                                      \
  • 1,1909 ppm Groundwater 9 12' Monitoring Well
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                                                    'WVY                                                                         '
                                                                                                                           .;s                        Monitoring Well 406 ppm H.H.

MS-38A M8-38S H.H. D.C. C.T. M8-19 MS-3SA MS-3 C.T. M8 BC M8 80

                                                                                                                                             \# N 9 12' N                                                                    '

No i Area of Visible l Contamination Contamination tween 6 - 12 '

                           -----------                 Biispected Sampling Error                                       -----------------
       .. >                                                                                                                                                                                   t
                 .                                                                                                                                                                            j r

i s - Attachment 4 -

 -                                                                                                                                                                                            i Report of Petroleum or Chemical Pmduct Discharge, Spillage, Seepage, Filtration or Sewage Discharge to Environment 1

vurt (Sheet 1 of1) i Millstone Unit 1 ammunrma NNECO pg nATE mz aarourraarAassgy DErt 11/6/98 1530 j Gary W. Johnson PHONE a _.weie m Environmental Services (860) 44,7-1791 x0757 i Dennis Latz- surtarsaw.esrat - Paul M. Jacobson i t erstimomen a. sonaresurf,sanssunazasAcziner t aratquarrrrrme nsmasu. tagT I [g g gagggg i nt nle nnun i h 4 e i-nw= 4 p g g g usT tsvenaast m [ r Igos.tTvreiDiaael Nn d. if = rn5 kne

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                                                                                                                                                                                    ..         l ilinvuuuMT                                                                                            t samasa.uAsscusas seio t1Tasas                          t Ismscrwas                           t icssosmAsseon:Tonupaam
                   !IsAans                       t Ianeamt                        t 3means                                                                                                    !

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f. ArrnmENTsratCAUsE t syistEVENT  ;
9. WsATMun livnaazAcapent t lvarmar au g lTANaomrirosamurruns gloAsum m rrosonzAn tIstomusvawT t ima== Ijanovuomouun t jovaarat tima I jacuer.rAn&RE ijaAme 1lNUMANEmaca Ig8EIDWanoUDO t irtBE t jsNows2ET IloTHum t lauanom ma==(HOE 2 ijonga [jHe WDS w run. no neoamATNN8 oBTABED raou OEAASTRY DEaumED,T AND BrF es00 AfrAQOmrT s.*aErostrABLE QUANTFTY (mo) or y a vaannUs sUms '

mEromTABLKQUANTTTY(aQ)mELEAsED 1] Yes t j peo , F,VES. ALSo r%oUT Sple44I% ATTAGEMENT s AND ATTAct To THIs romu asscamanorsesu.svswr I 6 Oil stained soil was identified during site environmental investication to support UST closure. i in the N & NW portion of Visible the site.oil was present between 6 - 12 feet i

                                         ^"**                      '

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                                                     ""m"'"erENAMF                              M f ME AER                             DME                           IDE
                     -DEP         Chemical & Oil Soills Division                                                                  11/0/4R              .           1996 NRC Case # 98-07659
  • Radiopager ECHO Notification 11/9/98 1640 IRF# 98-076 I  !

Level of use d EPIP 4400

                                                                             )JIlf ,]

Continuous

                                                                                                                ,                           [" Jr54                                  '
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  • e Reference 4
        .   .-                                                                                                                                                               t c.n.r.i Ome." s ma su..t. s.ma. c-cuevt                            U NWttHEAST UTit.tTIES 4
                                          .a  a'a                                                                          R FOR CONNECTICUT 061410270 L     tTJ "*"% ".%".T,,C                                                                        tros)se m I

November 17, 1988 D02306 Mr. G. Scott Deshefy, Coordinator PCB/Toxics Program Department of Environmental Protection , 165 Capitol Avenue Hartford, Connecticut 06106

Reference:

Letter, E. J. Mroczka to G. S. Deshefy, dated October 31, 1988.

Dear Mr. Deshefy:

NO System Facilities Amended Underaround Storace Tank Notifications Northeast Utilities Service Company (NUSCO), as agent for The Connecticut Light and Power Company CL&P) and Northeast Nuclear Energy Company (NNECO), hereby submits five amend d Underground Storage Tank Hotifications. Forms are being submitted for the following sites: 111g Owner /Ocerator , CMNEX - Southington CL&P  ; CL&P Madison Area Work Center CL&P i Meriden Area Work Center CL&P Mystic Area Work Center NNECO Millstone Nuclear Power Station - Unit 2

                                                                                                                                  ~
   -                         The forms have been amended to change the life expectancy of several tanks
   .                          from 50 years to 30 years, as discussed in Item 1.of the above referenced . .)

letter. Th'e from"25"yiar;1ife';exp*ectanegfor the tank'at Millstone

                                                                                                                                                 ~

Unit 2 is bein s' t6 30 yeaVs.. ' This change',' based ~en calculated useful anode life, keeps consistency with the other notifications. Calculations for useful anode life and certifications for the installation of ' cathodic protection are enclosed with the forms. There is not a certification for the installation of cathodic protection for the tank at Millstone Unit 2. The protection was installed during the tank installation in 1972. A sixth site, CL&P's Danbury Area Work Center, also no records exist because CL&P is planning to cease operations at this site, and remove the tanks. Once this war ( is completed .an amended fona will be submitted.

                                                                      .--       --....,             . ., m. ar2_m.m m. n m. r;>.<II sis cu nu

Mr. G. Scott Deshefy, Coordinator D02306/Page2 November 17, 1988 NUSCO requests your written concurrence with the 30-year 1tfe expectancy and with NUSCO's right in the 30th year to re examine the tank and re-petition the DEP for a further extension of itfe expectancy. If you have any questions, please call Ms. Cynthia L. Karlic, NUSCO Generation factittles Licensing, at 665-3740. Very truly yours, NORTHEAST UTILITIES SERVICE COMPANY As Agent for The Connecticut Light and Power Company and Northeast Nuclear Energy Company E.yMrocika / W SeniorVicePr[esident  ; Erclosures cc: w/ Enclosures and Copy 1, as appropriate Mr. Arthur Toth, fire Marshal town of Southington , 310 North Main Street Southington, CT 06489 Mr. Arthur W. Cunningham Madison Town Hall 8 Meeting House Lane Madison, CT 06443 Mr. Kroll, Fire Marshal City of Meriden , 61 Pratt Street . Meriden, CT 06450 Mr. Richard Perkins, Fire Marshal Town of Mystic P. O. Box 352 Stonington, CT 06378 Mr. Douglas Peabody, fire Marshal Town of Waterford 200 Boston Post Road Waterford, CT 06385 P 390d LuE 999 093 S31H131 A1333S'NG-fr4:0100:11 t6. EFII 619 *c14 7113

                  ' FitE tb. 519 11 4 3 '98 11*04 ID:tJJ-ON.SffETY & ETHICS                                                             860 665 3777                         PfE 16 1        -                                                     O l
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CALCULATION OF ANODE LIFE EXPECTANCY ~(TAMK(s) A/

                                                                                                                                                                             .)

ANODES - DURICHLOR 51, TYPE *SD* f 44

                                                $ ANODES 9 SB LDS EACH                                       = 35P LBS                                                                                  .

0.23 LBS. CONSUMPTION RATE Amp. Year r l ANODE CURRENT = 36 AMPS l ! ANODE LIFE - 352 LaS. AMP YEAR ,.  ! l I l 0.23 Lbs. 7f Amp i i

                                                                                                                                            .                                                                     i Bo4                                YEARS F

l i I i i l  ! t si TK1 LuE S99 098 S31H13 '8 A13WS'NG-fN:01 PO:IT 86. f1/11619 *ct4 3'11:1

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  • 1 Reference 5 NORTHEAST UTILITIES ,,,,,,,,,,,,,,,,3,,,,,,,,,,,,c,,,,,,,,,,
  • 1 E .me -m asse=c - P.O. BOX 270
                       ** *s *** =a                                               T OR CONNECTICUT 06141-0270 i

July 13,1993 D06683 i I UST Program Coordinator Department of Environmental Protection 165 Capitol Avenue Hartford, CT 06106 i

Reference:

Letter (D02306), E. J. Mroczka to DEP UST Program Coordinator, l dated November 17, 1988. ..

Dear Sir or Madam:

Millstone Unit No. 2 Amended UST Notification Northeast Utilities Service Company (NUSCO), as agent for Northeast Nuclear . Energy Company (NNECO), submits an amended underground storage tank l notification for NNECO's Millstone Unit No. 2. This notification supersedes l the notification made on November 17, 1988.

                                                                                                                   ]

The following change has been made: l

  • Update of tightness test data for tank A1. 9 _

If you have any questions, please call Mr. John Di Stefano Jr., NUSCO Generation and Environmental Licensing, at 665-3743. Very truly yours, Northeast Utilities Service Company i As Agent for Northeast Nuclear Energy i Company l i (LLD C. F. Sears Vice President Enclosure cc: w/ copy 2 Mr. Douglas Peabody, Fire Marshal l Town of Waterford i Town Hall 15 Rope Ferry Road Waterford, CT 06385 OS3422 REV. 448

                                          -            =  -             -   - -   -
     .*     s l

Tcnk Auditor ( tm) Copyright Leak Detection Systems. 1986.87.88.89.90s all rights reserved.  : Tank testing system versi,on 2.16. released 09/19/90 l t run #1

o & time - 05/14/93 10:11:56
  .pany name - MILLSTONE NUCLEAR PLANT ( UNIT #2 >
 'k ID - TANK # 1
ik. Location - ROPE FERRY RD. WATERFORD .CT '
duct in tank - #2 DIESEL FUEL
 . tom;r contact - BILL MACKAY                                                      ;

Phone number - 203-447-1791 EXT 4080 'oct/ building address - ROPE FERRY RD ity. Ctate, zip, etc - WATERFORD ,CT  !

tom;r P.O W - VERBAL sk c p; city (gallons) - 24760 sk dicteter (inches) - 126 l 1 dicmeter (inches) - 120
 .1 to tank top (inches) - S1

.crv:d API - 48.72 ';Orv0d temperature (F) - 59.00 ~

 *rCctcd API - 48.69                                                                i sf of cxpansion (F) or 0 - 0.0004780 e tanka inter-connected - NO i valv s closed - YES vont restricted - NO

,cl or fiberglass tank - STEEL

sroxiCOte age - N/A
>cr- rccovery system - N/A
  .cr tcble (if known) - 0
hca of water in tank - 0
tion. Turbine or No pump -TURBINE INDUSTRIAL PUMPS (2) ALSO DAY TK '

'th r and temperature - SUNNY 68 i st conducted by - HERIBERTO ORTIZ ENVIROTEL TA/#98 - 'it witnessed by - SKIP DERAGON AND JOHN SZYMANSKI

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p... . _ . _ . Reference 6 NORTHEAST UTILETIES c. ,.i Ome . s.wn sir t. 8.mn. Cono.cr,c. O 9 'Y Ee vs w .ac ***" P.O. BOX 270 k '

                     ."*,',$*j'7,*7L J sem.osv.uas.                                               HARTFORD. CONNECTICUT 061410270
                                 .ca                                           (203) 665-5000 January 4, 1991 D04264 Mr. Frank Wacht
     ' UST Program Department of Environmental Protection 18-20 Trinity Stre et
  • Hartford, CT 06106

Reference:

Letter (D03753), E. J. Mroczka to' G. S. Deshefy, dated May 30, 1990.

Dear Mr. Wacht:

Millstone Nuclear Power Station Amended UST Notification Northeast Utilities Service Company (NUSCO), as agent for Northeast Nuclear Energy Company (NNECO), submits an amended ur.de ground storage tank (UST) facility notification for NNEC04 Millstone Nue' ear Power Station, station service. The form submitted on May 30, 1990 reflect the removal of Tank C3, a 4000-ga11on( gasoline UST.re'erenced), Also, Tank A1, a has been am 300-gallon concrete emergency spill UST, has been removed from the registra-tion. This UST is regulated under the hazardous waste tank provisions and - therefore does not require registration. If you have any questions, please call Hs. Cynthia L. Karlic, NUSCO Generation Facilities Licensing, at 665-3740. Very truly yours, NORTHEAST UTILITIES SERVICE CO'MPANY As Agent for Northeast Nuclear Energy Company

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E.'JfKr6c1ka (/ l Senfor Vice President Enclosure cc/ Copy No. 2: Mr. Douglas Peabody, Fire Marshal Waterford Town Hall - - 15 Rope Ferry Road I Waterford, CT 06385 l I OS3421 REV. 448 l

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D07568 UST Program Coordinator Department of Environmental Protection 79 Elm Street Hartford, CT 06106-5127

Reference:

Letter (D04264), E. J. Hroczka to UST Program Coordinator, dated January 1, 1991. Dear Sir or Madam ' Millstone Nuclear Power Station Amended UST Notification Northeast Nuclear Energy Company (NNECO) submits an amended underground storage tank (UST) facility notification for NNECO's Millstone Nuclear Power Station, station service. This notification supersedes the notification made on January 4,1991 (referenced). - The following change has been made: .

  • Update of tightness test data for tank B2.

If you have any questions, please call Mr. John Szymanski, Northeast Utilities Service Company Generation and Environmental Licensing, at 665-4743. Very truly yours, NORTHEAST NUCLEAR ENERGY COMPANY C. F. Sears Vice President Enclosure cc/ Copy No. 2: Mr. Douglas Peabody, Fire Marshal Waterford Town Hall 15 Rope Ferry Road . Waterford, CT 06385 asu n ux.,es

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