ML20207G799

Forwards 1987 Environ Monitoring,Thermal Discharge Fish Surveillance & Dissolved Nitrogen Saturation Reduction Programs & Plans for Approval.Recommended Revs Will Be Submitted to Regulators Designated in Permit for Approval

ML20207G799
Person / Time
Site:	Pilgrim
Issue date:	12/31/1986
From:	Oxsen A BOSTON EDISON CO.
To:	MASSACHUSETTS, COMMONWEALTH OF
References
BECO-5.86-083, BECO-5.86-83, NUDOCS 8701070400
Download: ML20207G799 (12)

Text

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60 a93 aosumausw Pilgnm Nuclear Power station Rocky Hi:1 Road Plymouth, Massachusetts 02360 December 31, 1986 A.L. Oxsen Vice President BECo 5.86-083 Nuclear Operations Director Mass. Division of Water Pollution Control Permits Section - 7th Floor 1 Winter Street Boston, MA 02108 Gentlemen:

In accordance with NPDES Permit No. MA0003557 (Federal) and No. 359 (State) for Pilgrim Station, the attached 1987 Environmental Monitoring. Thermal Discharge Fish Surveillance, and Dissolved Nitrogen Saturation Reduction l

programs and plans are submitted by Boston Edison Company for your approval.

This submittal is specifically in response to Part I, Paragraph 7d of the above referenced permit, which provides a deadline of December 31st of each year of the permit's duration to submit revised programs and plans. These programs and plans have been approved and will continue to be reviewed annually by the Pilgrim Administrative-Technical Committee. Any recommended revisions will be submitted to the regulators designated in the permit for approval.

If there are any questions concerning the attached programs and plans, please do not hesitate to call Mr. Robert Anderson (849-8935) of Boston Edison Company.

Very truly yours,

/

RDA/ns

Attachment:

1987 Environmental Monitoring, Thermal Discharge Fish Surveillance and Dissolved Nitrogen Saturation Reduction Programs and Plans cc: Mr. John A. Zwolinski, Director BWR Project Directorate #1 Division of Licensing Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Dr. Thomas E. F::rley Regional Administrator

[hg Office of Inspection & Enforcement Region I 631 Park Avenue I

King of Prussia, PA 19406 G701070400 861231 E "

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Pilgrim Nuclear Power station Rocky Hill Road Plymouth, Massachusetts 02360 December 31, 1986 A.L. Oxsen BEco 5.86-082 Vice President Nuclear Operations United States Environmental Protection Agency Region I Permits Processing Unit - Room 2109 John F. Kennedy Federal Building Boston, MA 02203 Gentlemen:

In accordance with NPDES Permit No. MA0003557 (Federal) and No. 359 (State) for Pilgrim Station, the attached 1987 Environmental Monitoring, Thermal Discharge Fish Surveillance, and Dissolved Nitrogen Saturation Reduction programs and plans are submitted by Boston Edison Company for your approval.

This submittal is specifically in response to Part I, Paragraph 7d of the above referenced permit, w' ich provides a deadline of December 31st of each n

year of the permit's duration to submit revised programs and plans.

These programs and plans have been approved and will continue to be reviewed annually by the Pilgrim Administrative-Technical Committee. Any recommended revisions will be submitted to the regulators designated in the permit for I

approval.

If there are any questions concerning the attached programs and plans, please do not hesitate to call Mr. Robert Anderson (849-8935) of Boston Edison Company.

Very truly yours, s TI RDA/ns

Attachment:

1987 Environmental Monitoring, Thermal Discharge Fish Surveillance and Dissolved Nitrogen Saturation Reduction Programs and Plans cc: Mr. John A. Zwolinski, Director BWR Project Directorate #1 Division of Licensing Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Dr. Thomas E. Murley Regional Administrator Office of Inspection & Enforcement Region I 1

631 Park Avenue King of Prussia, PA 19406

MARINE ECOLOGY MONITORING RELATED TO OPERATION OF PILGRIM STATION UNIT 1 NPDES PERMIT PROGRAMS j

i In accordance with NPDES Permit requirements for Pilgrim Station Permit No.

MA0003557 (Federal) and No. 359 (State), the following modified programs are presented for 1987. The 1978 through 1986 programs were submitted to the Regional Administrator, U.S. Environmental Protection Agency and Director, Mass. Division of Water Pollution Control, in December 1977 through December 1985, respectively.

l I.

ENVIRONMENTAL MONITORING The Environmental Monitoring Program represents a continuation of previous studies.

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 requirements of the Unit 1 Operating License, DPR-35, issued by the U.S. Atomic Energy Comission (now the Nuclear Regulatory Comission) Boston Edison had carried out a post-operational Marine Ecology Program. This program was designed to investigate the Cape Cod Bay ecosystem, with emphasis on i

the Rocky Point area, in order to determine whether the operation of

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Pilgrim Station resulted in measurable effects on the marine ecology and i

evaluate the significance of any such effects. The Marine Ecology Program for Unit 1 continued for five years from initial full power operation - that is, through December 1977 and was replaced by this NPDES Permit Program (with NRC concurrence). Amendment #67 (1983) to the PNPS Tech. Specs. deleted Appendix B non-radiological water quality requirements as the NRC felt they are covered in the NPDES Permit. The post-operational studies for Pilgrim Unit I and the collected data are incorporated and analyzed in the Marine Ecology Semi-Annual Reports

(#1-28), Marine Ecology Final Report (1978), and the 316 Demonstration Document (1975) and Supplement (1977).

The NPDES Program includes the following elements:

A.

Pilgrim Administrative - Technical Committee The Pilgrim Administrative - Technical Committee (PATC) is an advisory committee that was established to ensure that the Pilgrim marine studies have the benefit of qualified scientific and technical advice and are responsible to regulatory agency concerns.

The PATC recommends improvement to ongoing studies based on the latest results with the approva'

'f the U.S. EPA and Mass. Div. of Water Pollution Control.

It has neld 66 meetings since July 16, 1969, and will continue to be involved in the Pilgrim future marine studies.

The PATC is composed of representatives (technical and administrative) from each interested federal and state regulatory agency, Boston Edison Company and from the University of l

Massachusetts.

The present membership is as follows:

Agency National Marine Fisheries Service - (2 members)

Mass. Division of Water Pollution Control - (2 members)

U.S. Environmental Protection Agency - (2 members)

Mass. Division of Marine Fisheries - (2 members)

U.S. Fish and Wildlife Service - (1 member)

University of Massachusetts (2 members)

Boston Edison Company (1 member)

Each meeting was chaired by a representative of the Mass. Diva of Water Pollution Control in 1986.

Minutes of PATC meetings appear in the semi-annual Pilgrim Station marine ecology reports.

B.

Marine Fisheries Monitorina (Mass. Division of Marine Fisheries)

The Division of Marine Fisheries (DMF), an agency of the Commonwealth of Massachusetts, conducts a number of field studies (modified in 1981) pertinent to Pilgrim Station. Those studies listed below will be continued.

Fish The DMF has monitored the occurrence and distribution of' fish around Rocky Point and at sites in the area of discharge temperature' increase. Groundfish will continue to be sampled using a 32-foot-Shrimp trawl (1/2 inch mesh liner) bi-weekly.

Four stations will be' sampled (including replicates), at 2 reference and 2 sJr,'veillance locations which inlcude the PNPS intake embayment and discharge thermal effluent.

Figure 2 shows sampling station locations.

A finfish observational dive survey (Figure 2) will continue in 1987 for the Pilgrim Station thermal plume area. This monitoring will involve bi-weekly diving from April through October to document fish behavior and condition at selected stations.

During mid-August to mid-September, weekly diving will be done to document potential thermal plume-related mortalities.

In June-November 1987, a 150 foot and 20 foot beach seine (3/16 inch mesh bag) survey (Figure 1) will be performed weekly at four stations, including two in the Pilgrim Station intake embayment.

This monitoring will record fishes which are most susceptible to impingement mortalities that have occurred in previous years.

Lobster The DMF has collected lobster catch statistics bi-weekly through each fishing season (April to November) by sampling commercial lobstermen's pot hauls.

This effort will continue with one lobsterman as a measure of Pilgrim effect on the local lobster E

population (Figure 4).

An experimental lobster pot study initiated in 1986 will be continued, with the addition of 2 stations, for May-September in reference and surveillance areas to better define Pilgrim Station's thermal influence on lobster catch rate (Figure 3).

Gas Saturation I

In 1987, analyses will be conducted only during periods of potential discharge-related mortalities (as occurred in August 1985). A Weiss saturometer will be used in situ to measure total partial pressure of dissolved gases, and percent saturation of total gas, nitrogen, and oxygen will be determined.

n:j C.

Impingement Monitoring (Marine Research, Inc./8Eco)

The main objective of the impingement study is to calculate impingement rates of marine organisms by gathering and analyzing data on numbers and species carried onto the four travelling screens at Pilgrim Station.

In 1987 the weekly collection time will be twenty-four hours (three 8-hour periods). Supplemental fish survival data will also be recorded.

BECo will analyze data and prepare the report.

D.

Benthic Monitoring (Battelle New England Marine Research Lab)

The benthic flora and fauna are being monitored at three sampling stations at depths of approximately 10 feet (MLW) (Figure 1).

The dominant flora and fauna in each plot are recorded, and quantitative

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samples are collected from rock surfaces. Sampling will continue two times a year to determine power plant related changes, if any.

In addition, transect studies to map extent of stunted'and denuded areas immediately off the discharge canal will be continued 4 times a year in 1987.

E.

Entrainment Monitorinc (Marine Research, Inc./8ECo)

Entrainment monitoring studies in 1986 emphasized consideration of ichthyoplankton, as will those in 1987.

The 1987 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 twice monthly during the periods January-February and October-December.

Samples will be collected in triplicate.

If unusually high egg or larvae concentrations are found in the discharge when compared with

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s previous years, steps will be taken to implement speciali ichthyoplankton contingency sampling plans to assess the reason for, '-

the high concentrations. The first plan will consist of single tows

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• 1 the discharge canal.

If these numbers are stil1 unusually high, the second plan will consist of single tows at each of 13 bay stations off the plant, and samples will be analyzed immediately (Figure 5).

MRf W'dl) analyze data and prepare the reports, in addition to a special report assessing PNPS entrainment impact since commercial operation with reconsnendations for the direction of future entrainment monitoring.

t-F.

Reportino of Environmental Monitoring A semi-annual and an annual report covering each of the above (Items A-E), will be submitted to the EPA and MDWPC on October 31, 1987, i

and April 30,f0988, covering the periods January-June and January-December, respectively'.

4 II.

THERMAL DISCHARGE FISH SURVEILLANCE i

The Thermal Dischargh Fish Survetilance Program for Pilgrim Station has

- the following prinary, parts:

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A.

Overflights Periodic aerial overflights of Cape Cod Bay and the Pilgrim vicinity to alert Boston Edison to the presence of large schools of fish in the area. These overflights will be conducted weekly from March-November 1987 and results summarized in each annual report.

B.

ObservationoftheDis[hargeCanal Boston Edison personnel will make ffequent visual observations of the Pilgrim discha,rge canal during periods of fish'mi ration.

l C.

Dive Surveys Dive inspections of the discharge canal and fish b'ar.rief net determine fish presence and condition, and barrier net performance.

BECo will report dive survey findings in each annual report. Also, l

fish sampling and diver observation in the plume area will be l

N conducted bi-weekly from April through October by Massachusetts Division of Marine Fisheries personnel as part of the Environniental Monitoring Program.

g The dive survey anil canal observation elements of the Surveillance Program will provide a continuing check on the adequacy'of the barrier net in preventing the passage.of fish into ti:e casial.

l Stated dif f erently, these elements will monitor compliance with the barrier net condition of the permit.

If these elements indicate that the barrier net is not f unctioning adequately and'the p'ermit's 115% surface nitrogen limitation is triggered by the RA, the l

overflights, as well as the canal observations and dive surveys, will j

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indicate when fish susceptible to gas bubble disease mortality are suf ficiently near. Pilgrim Station to warrant action to reduce

. surface nitrogen saturation level to 115%.

Boston Edison will notify the EPA Regional Administrator and Massachusetts DWPC

- Director of the presence of large schools of fish within 1/2 mile of the discharge canal concurrent with water quality conditions L

potentially harmful to the fish.

III. DISSOLVED NITROGEN SATURATION REDUCTION The plan for reducing dissolved nitrogen surface saturation levels to i

less than 115% in the discharge canal will involve a power reduction or

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outage, should a school 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:

1.

Responsible regulatory / agency personnel familiar with fishery statistics (e.g., Mass. Division of Marine Fisheries) estimate the magnitude of the fish school and, based on measured water quality i

and other pertinent environmental data, make an initial judgement as to the likelihood and effect of gas bubble disease mortality. They also determine the potential necessity for a nitrogen saturation reduction, and notify Boston Edison of this initial judgement.

1 1

2.

Boston Edison notifies Rhode Island, Eastern Massachusetts, and Vermont Energy Control (REMVEC) of the possibility of a power reduction and obtains projections through at least the upcoming weekend.

Boston Edison transmits this information and load information to the agencies / persons taking action identified in No.

1 above.

i 3.

On the basis of this informatYon, agency personnel formulate a specific recommendation to the EPA Regional Administrator and/or the MDWPC Director on the timing and duration of the power reduction

- that is, in their judgement, appropriate and in the overall public interest.

l' 4.

Responsible regulatory personnel request power reductions through a telephone call to the Boston Edison, Pilgrim Nuclear Power Station l

Manager.

5.

Boston Edison personnel record the results of periodic surveillance h

of the condition and location of the fish prior to and subsequent to any plant changes.

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