BECO-91-121, Forwards 1992 Environ Monitoring,Thermal Discharge Fish Surveillance & Dissolved Nitrogen Saturation Reduction Program & Plans for Approval
| ML20086P452 | |
| Person / Time | |
|---|---|
| Site: | Pilgrim |
| Issue date: | 12/16/1991 |
| From: | Wagner E BOSTON EDISON CO. |
| To: | ENVIRONMENTAL PROTECTION AGENCY |
| References | |
| BECO-91-121, NUDOCS 9112270027 | |
| Download: ML20086P452 (11) | |
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.5 Brainttee Hdi offee Park 4~ Braintree, Massachusetts 02184 4
i December 16, 1991 E. J. Wegnet l
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United States Environmental Protection Agency Region I Permits Processing Section P.O. Box 8127-Boston, MA 02114 1992 ENVIRONMENTAL MONITORING PROGRAMS AND PLANS Gentlemen:
In accordance with NPDES Permit No. MA0003557 (Federal) and No. 359 (State),
for Pilgrim Station, the attached 1992 Environmental Monitoring. Thermal Discharge Fish Surveillance, and Dissolved Nitrogen Saturation Raduction -
Programs and Plans are submitted by Boston Edison Company for your approval.
J' This submittal is made in accordance with Part 1 Paragraph 8d, of the above-referenced permit that-provides a deadline of December.31 of each year ,
of the Permit's duration to submit annual programs and plans. These-programs :
and plans replace the 1991 environmental program and have been recommended by -
the Pilgrim Administrative-Technical Committee.- ,
If there are any questions concerning the attached' programs-and plans, please do not hesitate to call 1 r. Robert Anderson (617-849-8935) of Boston Edison J Company.
.J.
RDAlcabl6528
Attachment:
Marine Ecology Monitoring Related to Operation of Pilgrim Station f Unit-1. NPDES Permit Progrr.ms-cc: U. S. Nuclear Regulatory Commission < '
ATTN: Document Control Desk Hashington, DC~ 20555
-U. S. Nuclear Regulatory Commission '
Region I 475 Allendale Road King of-Prussia, PA 19406 .
i Senior:NRC Resident Inspector /
Pilgrim Nuclear Power Station
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dN2bf0027911216
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. O ROSTON EDISON 25 Bramtree Hdi Off(e Paik Braintree, Mas 9thusetts 07184 Decetaber 16, 1991
~
E. J. W Ec'Er*I ema Mass. Department of Environmental Protection Division of Hater Pollution Control Regulatory Branc.h - 7th Floor One Hinter Street Boston, MA 02108 1992 ENVIRONMENTAL MONITORING PROGRAMS AND ELMS 4 Gentlemen:
In accordance with NPDES Permit No. MA0003557 (Federal) and No. 359 (State),
for Pilgrim Station, the attached 1992 Environmental Monitoring. Thermal Discharge Fish Surveillance, and Dissolved Nitrogen Saturation Reduction Programs and Plans are submitted by Boston Editon Company for your approval.
This submittal is made in accordance with Part 1, Paragraph Ed of the above-referenced permit that provides a deadline of December 31 of each year ,
of the Permit's duration to submit annual programs and plans. These programs and plans replace the 1991 environmental program and have been recomended by the Pilgrim Administrative-Technical Committee.
If there are any questions concerning the attached programs and plans, please do not hesitate to call Mr. Robert Anderson (617-849-8935) of Boston Edison Company.
[
( . Ha RDA/ cab /6528
Attachment:
Marine Ecology Honitoring Reial.ed to Operation of Pilgrim Station Unit 1, NPDES Permit Programs cc: U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Hashington, DC 20555 U. S. Nuclear Regulatory Commission Region I
'475 Ailendale Road King of Prussia, PA 19406 i l
Senior NRC Resident Inspector i Pilgrim Nuclear Power Station-
I -
. 1 4
Attachment to BEco Letter No. 91- 121 HARINE ECOLOGLtDN110RIRG RELATED TO OPERATION OF PILGR11LSTATION UNIT 1 NPDES PERHIT PROGMBS In accordance with NPDES Permit requirements for Pilgrim Station Permit No.
MA0003557 (Federal) and No. 359 (State), the following modified progiams are presented for 1992. The 1978 through 1991 programs were submitted to the Regional Administrator, U.S. Environmental Protection Agency (EPA) and Director, Mass. Division of Hater Pollution Control (HDHPC), in December 1977 through December 1990, respectively.
I. ENVIRONMENTAL HONITORLEG The Environmental Monitoring Program represents a continuation of previous monitoring. Pre-operational studies for Pilgrim Unit I commenced in 1969, almost four years before initial operation in December 1972 In accordance with environmental monitoring and reporting retMrements of the Unit 1 Operating License, DPR-35, issued by the U.S. Atomic Energy Commission (now the Nuclear Regulatory Commission) Boston Edison carried out a post-operat'.ont.
Harine Ecology Program. This program was designed to investigate the Cape Cod Bay ecosystem, with emphasis on the Rocky Point area, in order to determine whether the operation of Pilgrim Station resulted in measurable effects on the marine ecology and evaluate the .
significance of any such effects. The Marine Ecology Program for Unit I continued for five years from initial full power operation (that is, through December 1997) and was replaced by this NPDES Permit Program (with NRC concurrence). Amendment #67 (1983) to the PHPS Technical Specifications deleted Appendix B non-radiological water quality requirenients since the NRC believed they were incorporated in the NPDES Permit. The post-operational monitoring for Pilgrim Unit 1 and the collected data are incorporated and analyzed in the Harine Ecology Semi-Annual Reports (#1-38), Marine Ecology Final Report (1978), and the Section 318 Demonstration Document (1975) and Supphment (1977) pursuant to the Federal Hater Pollution Control Act Amendments of 1972.
The NPDES Program includes the following elements:
A. PJ1arim Administrative - Technical Committee The Pilgrim Administrative - Technical Committee (PATC) is an ad,visory committee that was established to ensure the Pilgrim hidrine studies have the benefit of qualified, outside scientific and technical advice and are responsive to regulatory agency concerns. The PATC recommends improvement to ongoing monitoring based on the latest results with the approval of the U.S. EPA and Hass. Div. of Hater PolleHon Control. It has held 76 regular i
V meetings since July 16, 1969, and will continuo to be involved in future Pilgrim marine monitoring. The PATC is composed of representatives (technical and administrative) from each interested federal and state regulatory agency, Boston Edison Company and the University of Hassachusetts.
The present mcabership is as fo) lows.
A2211C3 National Marine fisheries Services - (1 member) hass. Division of Hater Pollution Control - (2 members)
U. S. Environmental Protection Agency - (3 membert)
Hass. Divisiois of Marine fisheries - (3 members)
Hass. Office of Coastal Zone Hanagement - (1 member)
University of Hassachusetts - (1 r.1 ember)
Boston Edison Company - (1 member)
Each meeting in 1991 was chaired by a representative of the Mass.
Div of kater Pollution Control. Minutes of DATC meetings appear in the semi-annual Pilgrim Station marine ecology reports.
B, Marine Fishttjn_ttonitorino (Hass. Div. of Harine Fisheries) .
The Division of Marine Fisheries (DMF), an agency of the Commonwealth of Massachusetts, conducts field monitoring pertinent to Pilgrim Station. The monitoring efforts listed below will be continued in 1992. ,
f_tih The DHF monitors the occurrence and distribution of fish around Rocky Point and at sites in the trea of' discharge temperature increase. Groundfish will be collected using a 32-foot Shrimp trawl (1/2 inch mesh liner) bi-weekly from April-December and monthly from January-March. Four stations will be sampled (including replicates) at 2 reference and 2 surveillance locations that include the PHPS intake embayment and disc.harge thermal effluent. In addition, experimental diving will be conducted to determine the feasibility or this technique possibly replacing conventional trawling as a monitoring method. Figurei shows sampling station locations.
1 A finfish observational dive survey-(figure I) will continue in 1992 for the Pilgrim Station thermal plume area. This monitoring will involve bi-weekly diving from May through November to document fish behavior and condition at six stations. During
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mid-August to mid-September, weeLI) diving will be d.me to -!
document potential thermal plume-related mortalities. A cunner tagging effort will be condxted to determine this resident species relation to the thermal plume.
LohittI 2 An experimental lobster pot study, initiated in 1986, will be continued during June-September in reference and surveillance seas to better define Pilgrim Station's thermal influence on
- ster catch rate (Figure 2).
The DMF has collected lobster catch statistics bi-weekly through each fishing season (May-November) by sampling commercial lobstermen's pot hauls. This effort will continue with one lobsterman as a measure of the Pilgrim Station effect on the local lobster population (Figure 3 shows the sampling grid).
fds Saturation
-In 1992, saturated gas analyses will be condur.ted only during !
periods c* potential discharge-related mortalities. A Heiss saturometer will be used in situ to measure total partial pressure of dissolved gases and percent saturation of total gas, nitrogen, and oxygen.
C. Imoinaement Monttorina (Marine .Research, .Inc./B Co)
The main objective of the impingement study is to calculate .
impingement rates of marine organisms by gathering =and analyzing i data on numbers and species carried onto the four intake travelling water screens at Pilgrim Station, In-1992 the weekly--
collection time will be. twenty-four hours (three 8-hour periods). Supplemental initial-fish survival data will also be-recorded. BECo will analyze the data anc prepare _the reports.
D. Benthic Monitor b A panel of experts will be convened in 1992 to review a y
retrospective analysis of the present benthic monitoring program '
and experimental field data collected in the Fall of 1991. They will attempt to recommend the most applicable direction for benthic impact monitoring at Pilgrim Station in.+he future as--
well as any prelimin3ry field work to' be perforned.- 1 t In addition, transect monitoring to mar the extent of stunted and
, denuded areas immediately off the disc 1arge canal will be continued 4 times a year-(March, June, September and December) in }o
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. i E. EntraiqMat jiqaitoring (Hartne Research, Inc.)
As in 1991, entrainment monitoring in 1992 will emphasize consideration of ichthyoplankton.
The 1992 entrainment studies will consist of routine monitoring of the Pilgrim discharge. This monitoring will be on a weekly basis during the period March-September and bi-weekly during the periods January-February and Octobtr-December. Samples will be collected in triplicate. If exceptionally high egg or larvae
concentrations are found in the discharge when compared with previous years, steps will be taken to implement contingency ichthyoplankton sampling plans to assess the reason for the high concentrations. The first plan will consist of additional tows and sample analysis from the discharge canal. If ichthyoplankton numbers retain exceptionally high, the second plan consisting of single tows at each of 13 Bay stations off the plant will be initiated, and the samples analyzed immediately to determine the cause for the high densities (Figure 4). HRI will analyze the '
data and prepare the reports.
F. Reportina of Environmental Honitorina Semi-annual and annual reports with results of the above (Items A-E) will be submitted to the EPA and HDHPC on October 31, 1992 and April 30, 1993 covering the periods January-J'Jne and i January-December 1992, respectively.
II. THERHAL DISCHARGE FISH SURVElt,MECf .
The lhermal Discharge Fish Survelliance Program for Pilgrim Station has the following primary parts:
A. Overfliahti Periodic aerial overflights of western Cape Cod Bay and the j~
Pilgrim vicinity will be conducted to alert Boston Edison to the !
presence of large schools of fish in the area. These overflights L will be conducted weekly from March-November 1992 and results :
summarized by BEco in each annual monitoring report. [
B. Discharae Inspections yl n
Frequent visual inspections of the discharge canal and fish I barrier net during periods of fish migration will determine fish ;,
presence and condition, and barrier net performance. Also, fish -
sampling and diver observation in the plume area will be :
conducted bi-weekly from May through' November by Massachusetts h Division of Harine Fisheries personnel as part of the Environmental Monitoring Program.
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- l The observation and inspection elements of the Surveillance f
. Program monitor compliance with the NPDES Permit barrier net !
condition by providing a check on the adequacy of the net in I i preventing fish passage into the discharge canal. If these '
! elements indicate the barrier net is not functioning adequately, l overflights, as well as the canal inspections and dive l observations, will indicate when fish susceptible to gas bubble l disease mortality are sufficiently near Pilgrim Station to warratt action .0 reduce surface nitrogen saturation level to less than 115%. In addition, Boston Edison will notify the EPA I Regional Administrator and Massachusetts DNPC Director of the- i presence of large schools of fish within 1/2 mile of the discharge canal.
! III. DISSOLVED NITROGEN SATURATION REDUCTION The plan for redum s dissolved nitrogen surface saturation levels to less than 115% 10 %e discharge canal will involve a power reduction or outage should a anool of fish _ susceptible to gas bubble disease mortality be in the immediate vicinity of Pilgrim Station. The procedure for determining the need, feasibility and request for a power reduction or outage is as follows:
A. Responsible regulatory / agency. personnel familiar with fishery statistics (e.g. Mass. Division of Marine fisheries) will estimate the magnitude of the fish school and, based on measured water quality and other pertinent environmental data, make a determination as to the likelihood and effect.of a gas bubble disease mortality. They will also determine the potehtial .
necessity for a nitrogen saturation reduction and notify Boston Edisonofthisinitialjudgment.
B. Boston Edison will notify the Rhode Island, Eastern Massachusetts, and Vermont Energy Control (MEMVLC) of the possibilityofapowerreductionandobtainprojectionsthrough at least the upcoming weekend. Boston Edison will transmit load information to the agencies / persons taking.the actiors identified in action A above.
C. On the basis of this information, agency personnel will formulate specific recommendations to the EPA Regional Administrator and/or the MDMPC Director on the timing and duration of a power reduction that is, in their judgment, sopropriate and_ in _the overall-public interest.
D. Responsible regulatory personnel will.recuest a power reduction through a telephone call' to the Boston Ecison, Pilgrim Nuclear Power Station Director.
E. Boston Edison personnel will record results of )eriodic surveillance of the condition and location of tle fish prior to.
and subsequeat to any Station operational' changes.
RDA/6528 6 e
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Fi gure 81 Location of Entrainment Contingency Plan Sampling Stations, C.