ML20210T233

Requests Temporary Authorization Per Section 22a-6k of CT General Statutes to Conduct Test Treatment of Wastewaters within Condensate Polishing Facility Waste Neutralization Sumps at Plant,Unit 2

ML20210T233
Person / Time
Site:	Millstone
Issue date:	09/02/1997
From:	Scace S NORTHEAST NUCLEAR ENERGY CO.
To:	Grier J CONNECTICUT, STATE OF
References
D11404, SES-97-GN-133, NUDOCS 9709150020
Download: ML20210T233 (29)

Text

N d 1 Rape Ferry Rd. (Route 156), Titerford CT 0o385

) ggq

. . Nisclear Etiergy wistone s riear ro-er siatioa l Northeast Nuclear Energy Company i

'*

• P.O. Bos 128 Tate.rford,CT 06385 0128 September 2,1997 (860) 447 1791 Faz (860) 444 4277 The Northeast thihtia System SES 97 ON 133 Dil404 Mr. James Grier Super ising Sanitary Enginaer Water Management Bureau Department of Environmental Protection 79 Elm Street liartford, CT 06106 5127

Dear Mr. Grier:

MILLSTONE STATION NPDES PERME No. 0003263 Temnorary Authorization for Full-scele Prototyne Test of Hydra 7ine Treatment As previously discussed with you on August 1,199;'. Northeast Nuclear Energy Company (NNECO)is seeking temporary authorization pursuant to Section 22a-6k of the Connecticut General Statutes to conduct a " test treatment" of wastewaters within its Condensate Polishing Facility (CPF) Waste Neutralization Sumps at Millstone Unit 2. A written application for a temporary authorization along with the processing fee of $5N accompanies this letter.

Currently, the existing Millstone Station NPDES permit does not address the discharge of wustewater containing hydrazine at DSN 001B-6. CPF wastewaters contain hydrazine during plant start-up, plant operation, and at certain times during plant shut-dowti.

As part ofits continuing review of hydrazine treatment altematives in support of a timely )bi Unit 2 restart, NNECO is proposing a full-scale prototype test of hydrazine treatment utilizing the CPF sumps at Millstone Unit 2. As requested, we have reviewed the feasibility of conducting this test at Unit 3. However, as you are aware, Unit 3 is working toward " ready for restart' by the end of September and performance of this testing at this {

late date may impact this schedule. Since, the attached hydrazine treatraent methodology and associated Station procedures have been developed by Unit 2 personnel for application at Unit 2, it is preferred that the proposed testing take place utilizing the Unit 2 CPF.

l l

9709150020 970902 PDR P

ADOCK 05000245 blhlh!!!!!

• • • • * hh'i PDR a 1 oum4 uv. nm

'll et full scale tests (desenbed in Attachment 2) are intended to assess the feasibility of

I chemically treating CPF waste waters to remove hydrazine. The proposed pretreatment .

involves the chemical oxidation of hydrazine using hydrogen peroxide. The byproducts  ;

of this reaction are water and nitrogen. The test would be carried out at a pil greater than ,

10.3 and sodium hydroxide would be added as necessary to maintain a minimum pil of 10.3. hiagnesium sulfate would be used as a catalyst for the reaction. Wastewater pil vould be neutrali7ed to within the range of 6 9 in accordance with NNECO's current NPDES permit prior to dischange.

To proceed with the test, NNECO is requesting temporary authorization from the DEP to test treat wustewaters containing hydrazine with hydrogen peroxide using magnesium sulfate as a catal)st and discharged via DSN 00113 6. Although the current plan is to conduct this prototype test once, NNECO seeks a 30 day authorization to allow additional testing, if necessary, in the event the treatment test fails to reduce the hydrazine dmvn to de minimus levels (s 350 ppb), Unit 2 will not discharge the affected sump. The sumps contents would be trucked and disposed off site by an authorized waste disposal company.

Upon completior of the hydrazine test treatment, the results will be forwarded to the Department. Wr believe that this treatment method, if successful, offers NNECO and the Depanment a nicans of resolving the discharge of hydrazine containing wastewaters from DSN 001116 until such time as the hiillstone NPDES permit is renewed.

Should you have any questions, please call hir. Paul Jacobson, Environmental Services -

Nuclear at (860) 447-1791 Extension 2335. .

Very Truly Yours, NORTilEAST NUCLEAR ENERGY C0hiPANY

/ Ma-S .'E. SCACE Director Nuclear Engineering Programs w/ attachments c:

NRC NRC Resident inspector 2

. .. . . . . . . . . . ~ . . . . . . . . .. .

.  :: en- w e>- <es- m . m <e3- m .. = . . _ ... = ,e m i NORI11EASL.nuct r AR FNrkdV cnticANY i

1. 'iY-  ;

Check Go. Date Payment Amt ii 4l **v 0000259282 08/29/97 $500.00 LI f

• 5 .

y FIVE HUNDRED 8 00/100mmmmmmmmmmmmmmmmmmmmmmmmmuuuummuunnamma DOLLAR a

\

il O to t.o ..

~

l

$* STATE OF CONNECTICUT .

l

' I DEPARTMENT'0F ENVIR PROTECTION . -

M (. % )CpE>d(j ]*l BUR 0 TER MANAGEMENT a " -

+f {

, HARTFORD CT 06106-5124 Au forized Signature {e !

J..m i c ~, 4 v

y pie.e w. . .

2 du us -cm <n . . . . . . . . . .. ....~. "- E Ti s' 2 5 9 28 2 n*  : 0 & L 9 0 0 1.t. 5i: 2 2 G 28'

~

7 e== , w attatnao enten issuto as rutt pavutut o* recus ortow. etrass estaca stus ano o Posit carck Paowette.

~

! Vendor Id Check No. Date

' 500 06 0000259282 08/29/97

- . . Pavee Pavor

$4 El$'4*1d M p .

STA1E OF CONNECTICUT NORTHEAST NUCLEAR ENER0Y COMPANY 6

i Invoice No. Date Gross Amount Discount /Wthld Payment Amount 4 08/28/97 $500.00 40.00 4500.00 3, c,. , S .~~ .lWATERMGMTFEE COMMENTS: ATTN AUTHORIZATION COORDINATOR TOTAL $500.00 as .

1 au..s am-N m +rm.

T 9.es ee i*. .

.'~.!-

' 3 h .'$ .d , ,

p-pth".Tuf.c8

. 7 9 y, 4 4. ,

.: 1

(>

, NITACilMENT 2 SUMM ARY OF llYDRAZINE TREATMI:NT PROCFDURE

1.0 INTRODUCTION

Northeast Utilities is proposing to conduct full scale tests to remove hydrazine from the Condensate Polishing regeneration waste waters. The proposed treatment is oxidation of the hydratine using hydrogen peroxide. Magnesium suifate will be used as a catalyst for the reaction which will be carried out at a pil greater than 10.3 standard units (s.u.).

2.0 PROCl!DURilS (See Attached figure) 2.1 The tank to be tested will be isolated and placed on recirculation to mix the tank contents.

2.2 The pil of the tank contents will be monitored. If the pilis less than 10.3 s.u., sodium hydroxide will be added until the pil in the tank to be tested stabilizes at greater than 10.3.

2.3 A sample of the tank contents will be collected and analyzed ihr hydrazine, liased on the volume in the tank to be tested, and the hydrazine concentration measured, additional 35 % hydrazine will be added to the tank while it is being recirculated to achieve the desired hydrazine concentration for testing.

2.4 Once the additional hydrazine has been added and the tank has recirculated Ibr 30 minutes, a sample will be collected for hydrazine analysis. Ifit is .

within 10% of the desired concentration, the treatment test will be conducted. Otherwise, adjustments will be rnade to bring the tank to the desired hydrazine concentrations.

2.5 To begin the test,500 grams of magnesium sulfate will be added to the tank being tested.

2.6 A 30% solution of hydrogen peroxide will then be added to the tank. The volume of hydrogen peroxide to be added will be calculated based on the hydrazine concentration in the tank and the volume of wastewater to be treated.

2.7 Once the chemicals have been added, a sample of the tank contents will be collected while the tank is reciremating and 'malyzed for:

hydrazine using the iodine titration methodology (350 ppb Lt.D) hydrogen peroxide by CilEMet pil 2.8 Sampling and analysis will be repeated every hour until the acceptance criteria is met. The acceptance criteria is at or below the minimum detection limit for hydrazine (250 ug/l) based on the iodine titration method and less than i mg/l residual hydrogen peroxide.

3

2.9 If the hydrazine concentration does not meet the acceptance criteria,

'5 -

additional hydrogen. peroxide will be added to oxidize the remaining hydrazine.

2.10 Once discharge criteria are met, the tank will be taken ofTrecirculation and discharged.

4

860 424 4053 P,01/06 AL-17-8977 11:4t DEP t.ATID,P&S

.o ..

. Applicatico for an Emergency or Temporey Dischargo Authorization C Pursuant to Section 22a-6k C.G.S.

Pleue complete this form and submit for review and processing a:

Authotuadon Coordinator DEP/liuteau of Water Management . PERD 79 Elm Street Hutford, CT 06106 5127 _

Note: The processlog fees for Authorizadons are typically; $$00.00 for surface water discharge, $250.00 for sanhary sewet discharge, and $750.00 for groundwater discharge. These fees may be tuodined higher or lower upon review by DEP, The fee for municipalities thall te % of these fees, and the fee tha!! be waived for single family residences.

If an emergency calsts on site, the application will be processed prior to submittal of fees. Fees shall then be due within 10 days of 1scuance, if submined fees are deemed inadequate, add!donal fees shall also be due within 10 days of issuance.

Tte fee shall be non-tefundable and shall be paid by certiSed check or money order payable to the Department of Environmental Protection. The check shall state, ' Water Management Fee',

tn addition to the attached forms, d.e discharger shall rubmh:

1) A site diagram indicating the location of all structures, drainages, park!ng areas, momtonnt or iccovery wells, and all calsung or proposed equipment, structures and discharge locations associated with remediation efforts.

2) A copy of the USGS topographic map, or other suitable map indicating she location, adjacent toads, and all adjacent wetlands or waterbodies.

3) Plans and specification for the proposed collection and treaunent systern to be installed on site,

4) Analysis indicating pollutants in untreated water in the in waters to be discharged. Analysis to le submitted shall be from samples collected within the past 12 months, and must include a complete accoundng of known or caisting contaminants. Contact Docald Gonyca at (860) 424 3827 if questions anse. Results may be submitted on the screening form supplied.

5) A repon detalling the nature of the work being cordacted. If the discharge is to continue beyond 30 days, this report must detail the 14ature of the ' imminent threat to human health or the environment'.

6) For all discharges to a POTW, a signed approval from the appropriate sewer authority.

NOTE: If the discharge is composed solely of groundwater rernediation wastewater, and is ,

discharged to a sanitary sewer, the discharger must file for coverage under the General Permit for the Discharge of Groundwater Reinediation Wastewater to a Sanitary Sewer, issuct' August l 13, 1996.

Bweew of Water Management 1 of 8 Rev. 08/21/96

~. .

b a.

t JtA.-17-1997 11841 ICP LATER PLS 060 424 4055 P.02/06

1. Fill in the ntane of the applicant / registrant / operator.

Northeast Nue1 ear I!nereVCompanv gipjt/ Registrant /Operstor:

Mailing Address:

PO Box 128 CT Zip code: 06xRe,.nt2R City /Towa: __ Waterfor{ scatet (860) 447-1791 ggg,. h pas: v 3 ' rJ.

Business Pt.ooet Contact Peru, Mr. Paul Jacobson Tde: Mananer-rnvironmental

"~ " "

2. List facillry or site owner.

No rt h e n e.t Noctenr rnnrev rnnnnny Name:

Mailing Adotess:

Clry/ Town: State: Ilp Code: -

Business Phone: ext. Fax:

Contact Person: -

Title:

3. List site name and address.

Nue: Millstone Nuclear Power Station Malling Address: PO Box 128 City / Town: Waterford state. CT Zip Code: 06385-0128 Nini a47-1701 ext. 2335 Fax: Yd2E6 Business Phone:

Mr. Paul Jacobson Manager-lnvir nmenta1 Contact Person: TWe:

Services- Nuclear

4. List any engmeer(s) or consultant (s) ernployed or retained to assist in preparing the registration or in designing.

constructing or operating the poundwater remediataon wastewater activity.

Name:

Mailleg Addre.ss:

City / Town: State: Zip Code:

Business Phone: cxt. Fax:

Contact Person:

Title:

Service Prmidad Bureau et Water Management 2 et s e... onts i tes 4.* 4

~ . _ _ - - _ _ . . _ _ _ _ _ _ _ _ _ . . _ . ._. _ _._ _ ____ _ _ __ _._._ _ ____ _ _

At.-17-1997 11:41 TEP (#1TfD Pt.5 000 424 4053 P.03/06 I to the project site located la a town widdn a contal area as defined in section 220 94(a) COS7

' /Yes O No (if w.known, contact Donald Goeyca at (860) 424 3827)

2. la the project site located within an eedangered, threatened or special concern species area as kicatified on Llw

' State and Federal 1.isted Speens and Natural Cornrnunities Map'? See aciunent H (map available at DEP 79 Ehn St.. store level) (Yes O No Date of M*a. ,

l j 17 UNKNOWN CHECK Q lias a fictd survey been conducted to identify any presence or absence of endangered, threatened or special concern species? (Yes O No if yu. provide:

ggingi,g.s Nm Northeast Utilities Environmental Lab l Northeast Utilities Service Company Correasy Narrw!

and submit a copy of the field survey with your applicadon, 4

4. Is the site located within 1/4 mile of a well used for potable supply? O Yes (IfNo ,

1 Flaximum flow per batch '

,. 1. Maximum Daily Flow of the withdrawal and discharge ?F.000 M br:

Three batches p r day Number of hours per day of the wahdrawal and discharge I Maximuta instantaneous Flow

2. Esumated duradon of the withdrawal and discharge activity. Provide an estimated beginning and ending date.

1 Test (s) to be conducted within 30 days of DEP authorization GA

3. Otoundwater classification of the alte

4. Name of Receiving Water. POTW or Watershed for groundwater discharge 1.ong Island Sound-Niantic Itav J

3 of 6 Nv. 08/21/96 breau of Wetw Menegement a

9 4

9

. . + ~ ..,,-,.&e-.-.---,-,-r- ,,,-.--------,n%,---,,,-.-...;..-.-...m. -

n-..--.,,w,--,,,,rn---..

. ,m.---c --w-r--...-~.,, -. ,-3 + -

• JU 1 WI 11842 ICP tX4TE3 pts C60 424 4053 P.05/06 -

~

Em:rg:ncy cr Tcmp:rary Authorizati:n .

Screening form

. Site Narrie:

ffilistone Nuclear Power Station _

Addresst PO Box 128 -

(informsuon supphed by 0EP)

Waterford CT. OMRbO17A AM.setion No.

• l certify that I have personally examined and am f amiliar with the

• lD*

Information submitted in this document, and I certify that based on t reasonable investigation, including my inquiry of those indiylduels -

responsible for obtaining the Information, the information is true, accurate and complete to the best of my knowledge and belief. I understand that a f also statement made in this Information may be punishable as a criminal offense,in accordance with Section 22a 6 of the General Statutes, purst. ant to Section 63r 157 of the General Statutes, and in er.cordance with any other applicable statute,'

a tr Ith*t r6t? bf WillE bMT lhiOD$ $ 7 ?? -

' Date Signature

• Inle Monitoring results shall be recorded below and on the following pages as required in Sections 4 and 6 of this general permit. Parameters not required shall be marked *NA*.

Date Sampled:

o ac enu Discharge of 150MfN%TEGE%%PaE MEE51f.WrG Eif$55551 E f 9 % In d O N N 5 NE N E n sositD 2 E Daily f* low VOCs es detected by (PA Metnnd rini Tr>tal VOCs ((PA Method 601 A 602) 011 & neesse . Hydrocorbon f raction MTBE 1

Total t cod Arsenic Berium Roryllium

!!oren Cadmium Cheomium (tetal)

Chromium themavale,nti 4 Cobatt ,

Cooper Mennesium Mercury Nickel Selenium Silver Thattlum -

Tim 8vreed or Water Mesasement 6 or e Rev. 08/21/96 e - , e , ,-r -- n . . . . . - - - , , , ,,v-, ~ - - ., n-,

9 Attachment 0: Discharge Information (continued)

Part B: Discharge Analysis All applicants must complete Part 8, Tables 1 through 4 for each discharge. De sure to review the instructions: specifically,

• Testing Requirements for All Discharge Categories", Schedule A in ths instructions under Attachment O before completing this part, in addition, please note that for existing discharges previously licensed.by DEP, identify the substances that were monitored in the existing permit by placing *PP" in the

• Daily Composite or Grab Sample Results* column by the substance. For such substances, you need not repeat the analytical results in Tables 1 through 4, as long as such results are provided in Attachment E of the application.

Please indicate whether the discharge analysis was based on (check one):

O Projection la Actual wastewater O Wastewater from other similar discharge All applicants must provide analysis results in column 1 for all the substances listed in Table 1 and other information needed to complete columns 2 and 3, for ecch discharge except the following: For discharges of non contact cooling water, heat pump wastewaters and blowdown from heating and cooling equipment, provide analysis results for substances numbered in Table 1 am 3,5, G, and 11 through 16 only.

Table 1 Date Sarnpled _dLifu97 Dischyge Serial fJumber _ 001 Bfi 1 2 3 Daily Composite Number EPA

GENERAL or Grab Sample' of Method Hesults Analyses Biochemical Oxygen Domand (5 Day) 3.0 mg/L 1 405.1

1. (

Chemical Oxygen Demand 17.5 mg/L 1 410.2 2.

< 0.5 mg/L 2 413.1

3. Oil and Grease. Total'

4. Oil and Grease. Hydrocarbon Fraction' Total Suspended Solids < 0.5 mg/L 1 160.2 5.

Ammonia (as Nitrogen) 0.57 mg/L 1 350.1 6.

7. Phosphorus (Total) 0.07 mg/L 1 365.4 0.03 mg/L 1 352.1

8. Nitrate Nitrite < 0.01 mg/L 1 353.2 9.

10. Total Kjeldahl Nitrogen 1.05 mg/L 1 351.2

11. Total Residual Chlorinn' < 0.02 mg/L 1

12. Temperature (Winter and Summer)' 63.5 'F 1

13. pH (minimum and maximum)* 6.5 1

14. Copper, Total < 20 pg/L 1 200.7

< 5.0 pg/t _ 1 200.7

15. Lead. Total 96 ug/L 200.7

16. Zine. Total 1

• Check the instnctions undet tNs part for the required method of sample collection.

For surf ace water discharges only, check the instructions under tNs part lot requhed EPA methods of analyses.

Oureau of Water Management 6 of 2t Rev. 03/08/95 DEP PERD. APP.107

9 Part B: Discliarge Analysis (continued)

AU appli cants must complete Table 2 for each discharge by placing an 'X" in either column 1,2, or 3. If column 1 or 2 is marked for any substance, you must provide analysis results in column 4 for that substance and other information needed to cornplete columns 5 and 6 for that substance.

" Table 2 Date Sampled __.AL16/47 Discharge Serial Number __ 001An _

1 2 3 4 5 0 Analysis Known or Delieved Deily Number EPA

Required Suspected Absent Composite of Method TOXIC METALS,  !

by Schedule Present or Grab Analyses CYANIDES, PHENOLS A .see Sample Instructions Results*

< 5.0 pg/L 1 200.7

1. Antimony. Total X

< 5.0 pg/L 1 200.7

2. Arsenic, Totaf X

< 5.0 ug/L 1 200.7

3. Deryllium, Total X X < 3.0 yg/L 1 200.7 4 Cadmium. Total

< 5.0 o/L 1 200.7

5. Chromium. Total X

6. Chromium, X < 25 pg/L 2 218.6 Hexavaient' 1

< 0.5 vg/L 1 200.7

7. Mercury, Total X X 5.0 vg/L 1 200.7

8. Nicket. Total

- X < 5.0 vg/L 1 200.7 ,

9. Selenium. Total X < 5.0 vg/L 1 200.7

10. Silver. Total X < 5.0 vg/L 1 200.7 4 11. Thallium. Total

< 20 g/L 1 335.3

12. Cyanide. Total' X

13. Cyanide, 335.1 X < 20 gg/L 1 Amendable '

X < 30 ug/L 1 420.2

14. Phenols. Total

• _

1

• Check the instructions under this part for the requited method of sample collection.

• For surf ace water discharges onty, check the Instructions under this part fcr required EPA methods of analyses.

Bureau of Water Management Rev. 03/08/95 DEP-PERO APP 107 7 of 21

i i

Part 5: Discharge Analysis (continued)

Table 2 (continued) h '

Date Sempted - 111 Rie7 Discharge Serial Number 001.Ils j i 2 3 4 5 6 Analysis Known or Believed Daily Number EPA '

Required Suspected Absent Composite of Method VOLATILES' by Schedule Present orGrab Analyses A .see Sample

> Instructions Results* i Acrolein X <25 yg/L 2 624 1.

1 Acrylonitrile X < 10 vo/L 2 624 2.

3. Benrene X <2.0 vg/L 2 624-

4. X <2.0 pg/L 2 624 Bromoform ,

X < 2.0 pg/L 2 624

5. Carbon Tetrachloride Chlorobenrene X < 2.0 g/L 2 624 6.

X < 2.0 pg/L 2 624

' 7. Chlorodibromomethane X <6.0 vg/L 2 624

8. Chloroethane 9, 2.Chloroethylvinyl Ether X < 10 vg/L 2 624

^

X <2.0 voIL 2 624

10. Chlorof orm

11. Dichlorobromomethane X < 2.0 pg/L 2 624

12. 1,1.Dic hloroethane X < 2.0 pg/L 2 624 -

13. 1, 2 Dichloroethane X <2.0 yg/L 2 624 14, 1,1.Dichloroethylene X <2.0 pg/L 2 624

15. 1, 2 Dichloropropane X <2.0 g/L 2 624

16. 1. 3.Dichloropropylene X <2.0 g/L 2 624

17. Ethylbenzene X <2.0 vg/L 2 624

18. Methylbromide X <5.0 pg/L 2 624

19. Methylchloride X < 5.0 vg/L 2 624

20. Methylene Chlorlde X < 2.0 pg/L 2 624 .

- 21, 1,1. 2, 2,. Tetrachloroethane X <2.0 vg/L 2 624

22. Tettachloroethylene X <2.0 pg/L 2 624

23. Toluene X <2.0 sg/L 2 624 24, 1. 2.Trans Dichloroethylene X

< 2.0 pg/L 2 624

)

• Check the 6nstrucuens under tNs part for the required method of semple cohortiors.

• Fot surf ace water discherpes only, check the instructions under this part for requitect EPA methods of anafyses.

sureav of Water Management ,

8 of Pa Rev. 03/08/95 DLP-PEAD APP.107 ' - 1

~ 4..--,- , - , - - .a..n. ,-.,,v-w.-,-.--,-a, , , - , , , - - - , , + - - - - - - - - - - , - - , - , - - , - . ,-n,, .--r...--e,-.,..,---,,,-,.----.,,,a-,-n. --n , , , -

i

Part B: Discharge Analysis (continued)

' ' Table 2 (continued) .

Discharge Serial Number OO1 Fl6 Date Sampled _ A11 A/97 _

1 2 3 4 5 6

" Analysis Known or Believed Dally Number EPA

i Required Suspected Absent Composite of Method by Schedule Present or Grab Analyses VOLATILES' A .see Sample instrueff,ons Results* l l

< 2.0 vg/L 2 624 l 25, 1,1,1.Trichloroethane X

< 2.0 g/L 2 624 26,1,1,2 Trichloroethane X X < 2.0 vg/L 2 624

27. Trichloroethylene X < 5.0 pg/L 2 624

28. Vinyl Chloride 7

GC/MS FRACTION ACIO COMPOUNOG X <10 g/L 1 625

1. 2 Chlorophenot X < 10 vg/L 1 625 1 2. 2,4 Oichlorophenol X < 10 pg/L 1 625 9

3. 2,4 Oimethylphenol

• 4 X <50 g/L 1 625 4 4. 4,6 Oinitro O Cresol t

X < 50 vg/L 1 625 i

5. 2,4 Oinitrophenol X < 10 vg/L 1 625

6. 2 Nitrophenot X < 50 vg/L 1 625

7. 4 Nitrophenol X < 20 gg/L 1 625 -

8. P Cnloro M Cresol 4

X < 50 ug/L 1 625

. 9. Pentachlorophenot X < 10 ug/L 1 625

10. Phenot

< 10 ug/L 1 625

11. 2. 4, 6 Trichlorophenol X BASE NEUTRAL COMPOUNDS Acenaphthene X 1.

Acenaphthylene X 2.

2 Anthracene X 3.

X 4 Benridine r

5.' Bento(a) anthracene X 4

6. Benrotainyrene X X

_7. 3,4 Benro fluotanthene l

s, .

s

• Check the instructions under tNS part for the required method of sample collection.

For turf ace water discharges ordy, check the instructions under tNs part for /eevired EPA rnethods of analyses.

Bureau of Water Management Rev. 03/08/95 DEP-PERO. APP 107 9 of 2i i

> ",~<r - - - .. . , , , , , , , , , , _ , , _

< .~

. ,e Part B: Discharge Analysis (continued)

.a

-

• Table 2 (continued)

Date Sampled d118/97 Discharge Serial Number _ 001 B6 i.

1 2 3 4 5 6 Analysis Known or Believed Dally Number EPA" BASE NEUTRAt. COM[OUNDS Required Suspected Absent Composite of Method

! or Grab Analyses by Schedule Present A .see Sample Inttructions Result s' Benzo (ghilperylene X 8.

4 X

9. Bento(k)fluoranthene

10. Bis (2.Chloroethoxy) Methane X l

11. Bis (2 Chloroethyl) Ether X X

12. Bis (2 Chlorolsooreovl) Ether

13. Bis (2 Ethylhexyll Phthalate X .

].

14. 4 Bromophenylphenyt E'her X

15. Butvibenzyl Phthalate X X

1 16. 2 Chloronachthalene

17. 4-Choloroohenylphenvl Ether X

18. Chrysene X e X

19. Dibenro(a, H) anthracene .

X 20.1. 2 Dichlorobenzene

' X

21. - 1. 3 Dichlorobenzene X

22.1. 4 Dichlorobenzene 4

23. 3, 3 Dichlorobenzidino X

24. Diethyl phthalate X 25.- Dimethyl phthalate X

26. Di n butyl ohthalate X X

, 27. 2. 4-Dinitrotoluene 28, 2. 6 Dinitrotoluene X

29. Di n octvi phthalate X 30.- 1,2 Diphenythydrazine -

X fas Azer.snrene)

31. Flooranthene X Al':

C,

• Check the instructions under this part for the reevired method of sample coDection.

For surf ace water discharges ordy, check the instructions under this part for reNpured EPA methods of ansfyses.

Sureau of Water Menegement Rev. 03/08/95 DEP PERO APP.107 10 of 21

. . . . - , - , . . . _ . - . , . . _ - . , _ . - _ . . - . - . . . - .  : : :.. :~ .

. r I

Part Bt Discharge Analysis (continued) 4 ' Table 2 (continued)

Date Sampled _ 4/18197 Discharge Serial Number 00183 1 2 .3 4 5 6 BASE NEUTRAL COMPOUNDS Analysis Known or Believed Daily Number EPA' l

Required Suspected Absent Composlte of Method by Schedule Present or Grab Analyses A .see Sampfe Instructions Results'

32. Fluorene X

33. Hexachlorobentene X

34. Hexachlorobutadiene X

35. Hexachlorocyclopentadiene X

! 36. Hexachloroethane X

37. Indenoll.2,3 ed) Pyrene X 38, isophorone X

39. Naphthalene X

40. Nitrobenzene X

41. N nitroso dimethylamine X t

<t2, N Nitrosodi n-Propylamine X

43. N Nitrosodiphenylamine X ,

X I

44. Phenanthre;m

45. Pyrene X

46. 1. 24.Trichlorobenzene X f PESTICIDES

1. Aldrin

• X

2. Aloha BHC X

3. Beta . BHC X _

4. Gamma.BHC X

5. Delta BHC X 6.' Chlordana X

7. 4,4 DDT X

'8. 4. 4 DDE X

(

• Check the instructions under this part for the required method of sample collection.

For surf ace water discharges only, check the instructoris under tNs part for reevired EPA methods of analyses.

Bureau of Water Management ,

t1 of 21 Rev. 03/08/95 DEP PERO APP 107

-_ . , - i. _ . . . _ , , , _ _ _ , . ,___;,,,, , , . , _ __

l t

Part B: Discharge Analysis (continued)  ;

i Table 2 (continued) h Discharge Serial Number 001.a<l -/

Date Sampled al1 RIB 7 1 2 3 4 5 6  :

PESTICIDES Analysis Known or Believed Dolly Nurnber EPA

Required Suspected Absent Composit of Method  ;

j i by Schedule Present e or Grab Analyses  !

Sample i A .see instructions Results

• i

9. 4,4 DDD X ,

10. Dieldrin X ,

11. Alpha.Endosulf an X

12. Beta Endosultan X

13. Endosulfan Sulf ate X

14. Endrin X l

15. Endrin Aldehyde X

16. Heptschlor X 7

17. Heptachlor Epoxide X 4

18. PCB.1242 X

19. PCB 1254 X

20. PCB 1221 X

21. PCB 1232 X

22. PCB 1248 X

! 23. PCB.1260 X

24. PCB.1016 X

25. Toxaphene X e

• - Check the instructions under this part for the tequired method of sample collection.

• For surf oce water discharges only, check the instructions undet this part for reevired EPA methods of enalyses.

Bureau of Watet Management

• 12 of 21 Rev. 03/08/95 DEP PERD APP 107 . .

-n . . - ,~,,- - - , , , . , . , , - - , , . - - - . , , - - - , . ,r,--,,,-- .,..,,,..,.,e, --

, .---..,.v. .,v. ~ -. , - - n ,,,mnv.-~,,....~,,--.ns

t* .

Part 8: Discharge Analysis (continued)  ;

ai L All applicants must comp'ete Table 3 for each discharge by placing an *X' in either column 1 or 2. If column 1 ls marked for any substance, you must provide analysis results for triat substance in column 3 and other information needed to complete colemr.: 4 and 5 for that substance.

Table 3 Discharge Serial Number 001.B8 Date Sampled _ A f1 Alo7 1 2 3 4 5 Believed Daily Number EPA **

Known or Suspected Absent Composite of Method OTHER SUBSTANCES Analyses Present or Grab ,

Sample Results *

< 1.0 mg/L 1 320.1

1. Dromide X

< 5.0 1 110.2

2. Color X Tecal Colif orm' X

3. ,

-X O.40 mg/L 1 340.2

4. Fluoride

5. Nitrogen, Total 351.2 X 1.48 mg/L 1 Organic

6. Radioactivity X l'

i

a. Alpha. Total X 0.00 pCi/L 1

b. Deta, Totai

• X 0.00 pCl/L 1 X 0.16 pCl/L 1

c. Radium. Total X 0.00 pCi/L 1

d. Radium. 226 Total X 6.43 mg/L 1 375.2 i

7. Sulfate X 0.04 mg/L 2 376.2

8. Sulfide '

< 2.0 mg/L 2 377.1

9. Sulhte __ _X X 0.14 mg/L 1 425.1

10. Surf actants X < 100 g/L 1 200.7

11. Aluminum. Total X 38 vo/L 1 200.7

12. Barium. Total

13. Boron, Total X < 100 yg/L 1 200.7 X < 10 vg/L 1 200.7

14. Cobalt. Total X 352 vg/L 1 200.7

15. Iron. Total 468 vg/L 1 200.7

16. Magnesium. Total X

-g-

• Check the instructions under this part for the required rnethod of sample collecteon. "

Foe surf ace water discharges only check the instructions under this part for teovied EPA methods of analyses.

. Suteau of Water Management Rev. 03/o8/95 DEP, PERO. APP 107 t3 of 2t

_ ~ - - - . . , _ . _ _ . . - ~ . _ - ,. 1 _. _ . .- _ - . _ . . . _ , . . _ ,. . . - _ _ , _ . _ _ _ . ,

Part B: Discharge Analysis (continued)

Table 3 (continued)

Cate Campled _4L1ElS7 _

Discharge Serial NumberJQ1;pf 2 3 4 5 1

Known or Believed Dally Number EPA

Suspected Absent Composite of Method OTHER SUBSTANCES Analyses Present or Grab '

Sample Hasults' i

< 25 vg/t. 1 200.7  !

17. Molybdenum. Total X 13 vg/L 1 200.7

18. Manganese, Total X

<10 g/L 1 200.7

19. Tin, Total X

< 10 vg/L 1 200.7

20. Titanium, Total X OTHER TOXIC AND HAZARDOUS SUBSTANCES X

- .1 . Asbestos Acetaldehyde X 2.

Allyl alcohof X 3.

Ally! chloride X 4.

Amyl acetate X 5.

Aniline X

6. .

Bentonitrile X 7.

Benryl chloride X 8.

Butyl acetate X 9.

10. Butylamine X

11. Cantan X

12. Catbaryl X

13. Carbofuran X

14. Carbon disulfide X

15. Chlorpyrifos X

16. Coumaphos X

17. Cresol X

18. Crotonaldehyde X

19. Cvelohexane X i'N..

• Check the bstructions under tNs part for the t'.austed method of semple conectiott

• Fof surf ace water discherges oNy. check the Mstructens undet tNs part for requeed EPA methods of analyses.

Bu' eau of Watet Management Rev. 03/08/95 DEP PERD APP.107 14 of 21

-~ . - . . ~ _ _ .

Part B: DischarDe Analysis (continued)

.r-Table 3 icontinuedi Date Sampled dL1 Bin 7 Discharge Serial Number __,001;DA _

2 3 4 5 1

"Known or Believed Daily Number EPA

OTHEllTDXIC AND Suspected Absent Composite of Matt od HAZARDOUS Present or Grab Analyses SUBSTANCES Gample Results' _

20. 2,4 Dichlorophenoxy (acetic acid) Y. ,

21. Diarinon X

22. Dicemba X

23. Dichlobenil X

24. 0;chiona X

25. 2,2.Dichloro.

propionic acid X

26. Dichlorvos X

27. Diethyl amine X X

,28. Dimethyl amine

29. Dinitrobenrene X

30. Diouat X

31. Disulfoton X

32. Diuron X

< 100 ug/L 2 624

33. Epichlorohydrin X

34. Ethanolamine X 65 pg/L 1

35. Ethlon X

36. Ethylenn diamine X

37. Ethylene dibromide X

38. Formaldehyde X

' 39. Furfural X

40. Guthion X

41. Isoorene X

(

' Check the inst.uctons under this part for the required method of sample collection.

• For surf ace water discharges only, check the instructions under this part for required EPA rnethods of analyses.

Bureau of Water Management Fev. 03/08/95 DEP-PERD APP.107 15 of 21

_ . _ - _ _ _ -- - .- .__L__. . . -

. . . . . . . - . -. .- . -. - . - - - - . . - - - -- - -- - - . ~

i Part 5: Discharge An: lysis (continued)

• Table 3 (continuedi Dischstge Serial Number 00188 {",

Date Sampled A11 A/07 l

1 2 3 4 5 l Known or Believed Dolly Number EPA ** l OTHER TOXIC AND ,, '

Suspected Absent Composite of Method HAZARDOUS SUBSTANCES Present of Grab Analyses Sample Results' l

]- 42. Isopropanolamine X

43. Keithane X i

44. Kepone X i

. 45. Malathlon X

46. - Mercaptodimethur X

47. Methoxychlor,, X

48. Methyl mercaptan X i 49. Methyl methacrylate X i

50. Methyl parathlon X

51. Mevinphos X -

X k,

52. Menacarbate

53. Monoethyl amine , ,

X

54. Monomethyl amine X

55. Naled X

56. Naothenic acid X

57. Nitrotoluene X

58. Parathlon X

59. Phenolsulfanate X

60. Phosgene X i

61. Preparoite X i 4

62. Propylene oxide X

63. Pyrethrins X

64. Quinoline X

65. Resorcinol X I

i

' Check the instructions under thk part for the required method of sample conection. *

" For surf ace wstor discherpes 'rdy, check the instructions under this part for reguired EPA methods of analyses.

[

Bureau of Wate' Management -

16 of 21 fiev. 03M8/95 DEP PERO APP.107 >

u

• ,? 34 *

• 4N 9

- 4

"*-=t" *e+ e-- e- -r Ic r <y,s . , , _ ,_ , ,,,y.

' I l

lr . .

7 1 -

l Part 5: Discharge Analysis (continued)  !

l i

4

• ~

Table 3 (continued)

Date Sampled _ A/1 A/GT D]Scharge Serial Number __00186 l 1 2 3 4 5 I OTHER TOXIC AND Mnown or Believed Daily Number EPA ** .

, HAZARDOUS Suspected Absent Composite of Method  ;

SUBSTANCES Present or Grob Analyses ,

Sample  !

kesults' l

66, Strontium X a

i

! 07. Strychnine X i 68. Styrene X 4 09. 2. 4, 5 T (2, 4, 5-3 Trichlorophenomy X a acetic acid)

70. TDE (Tetrachloro.

diphenylethane)

X

71. 2, 4, 5 TP!2-(2, 4,5 Yrichlorophenoxy) X

- pr0panoic acid)

72. Trichiomfan X H

73. Triethylamine X I

74. Trimethylamine

• X -

76. Uranium X 6

76. Vanadium X

77. Vinyl acetate X i

18. Xylene X

79. Xylenot X

80. Zirconium X 4 ,

t r

4+

-lk u o Check the instructions under this part for the required rnethod of sempIt collection.

For surf ace water discharges only. check the instructens under tNs part for required EPA methods of enelyses.

d

- Sureau of Water Management -

DEP, PERO-APP 107- - 17 of 21 Rev. 03/08/95

[

- + l Part 8: Discharge Analysis (continusd)

All applicants must complete Table 4 for each discharge, by placing an "X" in either column 1 or 2 for the

, substances numbered 16, if column 1 is marked for any substance, you mus' provide analysis results for that substance and any other information needed to complete columns 3 through 5 for that substance,

[l' i

i l  !

l ,,, Table 4 Date Sampled -. dits/97 Discharge Serial Number 001 86 l 3-1 2 3 4 5 Known or Believed Daily Composite Daily Number EPA' {

SUBSTANCES Suspected Absent or Grab Sample of Method

• Present Results' Analyste l 4 1, 2,4,5 trichlorophenomy acetic acid 12, 4, 6, T) X i

2, 2-(2,4,6 trichlorophenoxy) propanoic acid (Silvex,2,4, X ,

' 6, TP) 3 3, 2-(2,4.5 trichlorophenoxy) ethyl, 2, 2- X

_ dichloroproolonate (Erbon) i

4. O, 0 dimethyl O-(2, 4, 5-trichlorophenyll X 7 phosohorothloats (Ronnel)

! 5, 2,4,6 trichlorophenol e l (TCP) X ('

4

6. hexachloroohene (HCP) X i

In addaion, lh y

i il your facility uses or manufactures one of the substances listed above as items 16 or knows or has reason to believe or can reasonably ascertain that one of those substances may he present in the ,

discharge; or l

2) your facility has a discharge resulting from a process regulated under 40 CFR Part 430 Pulp, Paper, and Paperboard Point Source Category; or 31 you know or have reason to believe or can reasonably ascertain that 2,3,7,8 - Tetrachlorodibento p. l dioxM (TCDD) may be present in the discharge; ,

you must also provide the analysis results for the dioxin and furan substances numbered 7 through 27, on the following page, using ' EPA Method 1613: Tetra through Octa. Chlorinated Dioxins and Furans by isotope Dilution HRGC/HRMS".

e

' . Check the instructions under this part for the required rnethod of temple conection.

For surf ace water discharges only, check the instructions under this part for reevired EPA rnetnods of analyses.

Sureau of Water Management 1s of 21 Rev 03/08/95 DEP PERO APP 107

, -N ec re5 -r Ta- -e ep wo- . -- w,et- sgE-- , e-I e --ee - - -

--w,-----,- ----*w~----w.y,y- ,r --u-< .m-= -try w p--y "r v- T

i

. i Part B: Discharge Analysis (continued)

. Table 4 (continued)

Date Sarnpled ._.AL18!97__ Discharge Serial Number _ . _pQ1g8 _

1 2 3

< Daily Composite Sample Number EPA' SUBSTANCES Flesults' of fAethod Analyses

7. 2,3,7,8.TCDD (Tetrachlorodibenro o dioxin)

8. Total . TCDD

9. 2,3,7,0.TCDF (Tetrachlorodibentofuran)

10. Total . TCDF 11.1,2,3,7,8 PeCDD (Pentachlorodibenro p.

dioxini

12. Total . PeCDD 13.1,2,3,7,8 PeCDF (Pentachlorodibenrofuran)

14. 2,3,4.7,8.PeCDF

15. Total PeCDF

16. 1,2,3,4,7,8.HxCDD (Hexachlorodibenro p.

dioxin)

17. 1.2.3.6,7,8.H w CDD 18, 1,2,3,7,8,9.H r C D D .

19. Total . HxCDD 20.1,2,3.6.7.8 HxCDF (Hexachlorodibenrofuran)

21. 1. 2,3,7,8.9.H x C D F

12. Total . HxCDF

23. 1,2,3,4,6,7,8 HpCDF (Heotechlorodibenzofuran)

24. 1,2,3,4,7.8.9 HoCDF

25. Total . HpCDF

26. OCDD (Optachlorodibento p dioxin)

27. OCDF (Hexachlorodibenrofuran) k'

• Check the instructens under this cart for the reavired method of sample collection.

• For surf ace water d<scharges ordy, check the instructions undet this part for requurd EPA methods of analyses.

Bureau of Water Management DEP PERO APP.107 19 of 21 Rev. 03/08/95

- _ ~_ _ _.-.-_.- - _ _

Part 5: Discharge Analysis (continued)

If you know or have reason to believe that any biological test for acute or chronic toxicity has been made on

. 'any of *your discharges or on any water receiving the discharge within the last three years, or for dischar previously licensed by DEP, since the issuance of such license, coroplete Table 5. Reproduce and complete Table 5 for each permit that you are applying for. (see Instructions)

Table 5: Blological Tomicity Testing Data E Isting Permit Number _CT.0003263_

Discharge Date ' Test Species Results Comparison Spoeles Results Comparlson Serial # Method 1 to Limit 2 to Limit

,1 Doreau of Water Management -

20 ol 2t Rev. 03/08/95

~ 0tP-PfMD APP 107

t Part 5: Discharge Analysis (continued)

' Table 6 Discharge Tomicity Evaluation All Discharges

1. Except as provided below, all applicants for permits to discharge to a surface waterbody (i.e., for new and existing discharges) must perform a Discharge Toxicity Evaluation (DTE) in accordance with Section 22a 430 4(c)(21)(B) RCSA and submit the results of the DTE as Attachment O, Table 6.

2. Exceptions: A DTE need not be performed or submitted with this application /4

4. this application for a permit is to discharge sewage from a POTW; or

b. a DTE covering all discharges to surf ace waters at the site has been previously approved by DEP; or c, the applicant has been specifically exempted from submission of a DTE for the discharge (s),in writing by DEP, in accordance with Section 22a 430 4(c)(21)(C), prior to submittel of this application. (see instructions)

3. For discharges to a POTW, a DTE may be required depending on the, nature of the discharge, in this case, you will be notified by DEP af ter submitting your application.

if any of the analyses reported in Tables 1 through 6 of this application were performed by a contract laboratory or consulting firm. list the name, address and telephone number of the laboratory or firm and the type of analyses performed.

Table 7: Contract Laboratory identification All_ Discharges Address Telephone Substances Aralyzed Name f Area Code & No.) (List) all substances reported in NU's West Springfield Lab West Springfield. MA (413) 730-4752 Tables 1 through 4.

Bureau of Watet Management Rey, o3/o8/95 DEP PEMD APP to? 21 of 21

. . . __________~-___.___m_f..e_m._em ._

.# a Attachment H Field Survey Information A search of the Connecticut Depanment of Environmental Protection's (CTDEP) Natural Diversity Data Base maps and files has tevealed no " endangered" or " threatened" species within the Millstone Nuclear Power Station (MNPS) project boundary. However, two local species were classified as being of"special concem": setbeach sandwon (Honkenya peploIdes) and .

osprey (Pandion hallaetus).

Seabeach sandwort is a low, fleshy. leafed herb occasionally found above the strandline, or high.

water berm above sandy beaches. As the major MNPS discharges are near rocky shores, impact associated with station operation on this plant is, and is expected to remain, minimal.

The osprey is a large. migratory, fish eating hawk like raptor that " summers" in southern New England, including the MNPS area. The osprey population throughout its range suffered enormously in the 1950s and 1960s because of the heavy use of pesticides, including DDT and dieldrin. The accumulation of pesticides caused thinning of the birds' eggshells and reproductive failure. Millstone Point has historically been a nesting site for osprey, and during the e construction of Millstone Unit 1 in 1967, a platform was erected to support osprey nesting. In 1971, a pair of osprey established their nest on this platform and successfully produced three young. Since that time, Nonheast Utilities has worked cooperatively with staff from CTDEP and U.S. Fish and Wildlife to establish over 20 osprey platforms in southeastem Connecticut. The seven platforms located at the Millstone site have produced approximately 8% of Connecticut's fledglings since the program was instituted. Since the ban on use of DDT in 1972 and the efforts ,

to restore the population, ospreys have made a dramatic comeback and are expected to be removed from Connecticut's list of species of"special concern"later this year. Under the conditions of the NPDES permit for MNPS, no impacts on osprey are expected.

Another important natural community identified in the waters near MNPS includes subtidal saltwater aquatic vegetation. Since 1985, celgrass (Zostcra marina) beds in the vicinity of Millstone Point have been monitored extensively as pan of a much larger ecological monitoring program designed to assess the impacts of MNPS operations on the local marine environment.

The objectives of the eclgrass monitoring program are to identify temporal pattems of celgrass distribution, abundance and reproduction, and to determine the extent to which changes in these patterns are the result of natural variability or MNPS operation. Results of this long term monitoring indicate that sampling sites nearest to MNPS (Jordan Cove and White Point) have supponed stable populations since 1985.

After funher consultation with staff from the Natural Diversity Data Base and resiew of the processes in the renewed NPDES permit for Millstone Station, no impacts to any of these species or conununities are expected.

Also, as part of this submittal, attached hereto is the 1996 Annual Report: Monitoring the Marine Emironment of Long Island Sound at Millstone Nuclear Power Station, Waterford, Connecticut as prepared by the staff of Northeast Utilities Seivice Company, Environmental, Health & Safety Services and the NU Environmental Laboratory.

STATE OF CONNECTICUT y DEPARTMENT OF ENVIRONMENTAL PROTECTION l . FRANKLIN WILDLIFE MANAGEMENT AREA

~~

391 ROUTE 32

<. NORTil FRANKLIN, CT 06254 TELEP110NE:(860) 642 7239 January 24, 1997 Mr. Paul Jacobson Northeast Utilities Service Company P.O. Dox 270 Hartford, CT 06141-0270 Re: Renewal of Existing Permit for Millotone Nuclear Power Station (Watorford, CT)

Dear Mr. Jacobson:

Your requent for information has been forwarded to mo by Dawn McKay of the Department of Environmental Protection's (DEP)

Natural Diversity Data Dase. According to our records, Ospreys (Pandion balisetus) a stato species of opecial concern, have been known to nest on the Millstone property.

The Wildlife Division has not made an on-site inspection of the project area nor seen details of the work to be dono.

\ Consultation with the Wildlife Diviolon should not be substituted for on-sito surveys required for environmental assessments.

If you have any questions or need additional information please contact me. Thank you for the opportunity to comment.

Sincerely,

\

q m ~

Julie Victoria Wild 11fo Diologist ec: D. McKay - 7999 An Equal Opportuntry Employer

~* GO't "

pge h% STATE OF CONNECTICUT '

q$

6.

h del %RTMENT OF ENVIRONMENTAL PROTECTION NATURAL RESOURCES CENTER 79 Elm Street, Store Level Hartford,CT 06106 Natural Diversity Data Base January 6,1997 PaulJacobson Northeast Utilltles Servlee Company P.O. Box 270 Hartford, CT gyg. e t ;o re: Renewal of Existing Permit for Millstone Nuclear Power Station (Waterford, CT)

Dear Mr.Jacobson:

I have reviewed Natural Diversity Data Base maps and files regarding the area delineated on the map you provided for the Millstone Nuclear Power Station in Waterford, Connecticut. I have attached a list of species and natural communitiestwith their state and federal status)that fall within your shaded boundaries. For more information rega, ding the wildlife species you should contact Julie Victoria (DEP Wildlife; 860 642 7239). For information on the fish you should contact Peter Aarrestad (DEP Marine Fisheries; 860 434 6043). For more information on plants or communities, please contact Nancy Murray(DEP Natural Resece es Center; 860-424 3589).

Natural Diversity Data Base information includes all information regatding critical blological resources available to us at the time of the request. This information is a compilation of data collected over the years by the Natural Resources Center's Geological and Natural History Survey and cooperating units of DEP, private conservation groups -

and the scientific community. This information is not necessarily the result of comprehensive or site specific field investigations. Consultations with the Data Base should not be substitutes for on site surveys required for environmental assessments. Current research projects and new contributors continue to identify additional populations of species and locations of habitats of concem, as wc!! as, enhance existing data. Such new information is incorporated into the Data Base as it becomes available.

Please contact me if you have further questions at 424 3592. Thank you for consulting the Natural Diversity Data Base. Also be advised that this is a preliminary revlew and not a final determination. A more detailed teview may be conducted as part of any subsequent environmental permit applications submitted to DEP for the proposed site.

Sincerely, fr-QW\C.h -

Dawn M. McKay Biologist / Environmental Analyst CC: Peter Aarrestad Julie Victoria Sancy klurray (Fristed on Recycled Paper) 79 Elm $tteet

• Hartford, CT 06106 $127 An tpal OpporteMty Emplope

e i

• S k AM t 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ CCHW AHt s . . . . . . . . . . . . . . . . . . . . . . . . . . t Alf 081. . . S t a t e

,

• Status kC*CtthTA PEPL0lDil SEA *BEACM SahDWO41 1987 02*11 SC M*tttNTA PtPL0l0ES SEA *llACW SAkDWott 1969*01 12 SC PANDIDW HAllALTUS 0$ Pity 1993 sc Sutfl0AL $AL1WAtti AQUAflC BID 1989 4 Records Processed EC is State Spectet Concern k

i o

4

^ - -- - - - _ _ . _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ . _ . . _ _ _ _ . _ _ _ . . .