ML18079A525

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Discusses 790525 Approval of 316(b) Plan of Study Re Environ.Plan Has Been Updated as Required.Agrees to Participate in Quarter Progress Meetings.Proposes Delay of Emergency Response Team Discussion to Jul 1979 Meeting
ML18079A525
Person / Time
Site: Salem  
Issue date: 07/01/1979
From: Shissias J
Public Service Enterprise Group
To: Lunenfeld H
ENVIRONMENTAL PROTECTION AGENCY
References
NUDOCS 7907110519
Download: ML18079A525 (22)
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... PS~G Public Service Electric and Gas Company 80 Park Place Newark, N.J. 07101 201/430-5858 James A. Shissias. General Manager Environmental Affairs July 1, 1979 Mr. Harvey Lunenfeld, Chief Energy and Thermal Wastes Section U. S. Environmental Protection Agency - Region II 26 Federal Plaza New York, New York 10007

Dear Mr. Lunenfeld:

316(b) PLAN OF STUDY NPDES PERMIT HO. NJ0005622 SALEM NUCLEAR GENERATING STATION We have received Mr. Eckardt C. Beck's letter (Attachment 1) dated May 25,. 1979, approving our Salem 316 ( b) Plan of Study (POS).

We* have reviewed this document carefully and wish to address the following points:

Modification of POS Section 6.2.3 We have updated the POS as required by your approval letter.

We have taken the liberty to update the entire document

('Attachment 2) to include* a new page* numbering and identif i-cation system to expedite future revisions~ We have in-cluded the requirement. that the larval tables and pumps be calibrated to determine their efficiency and assess the mortality of test organisms on passage.

Description of Sampling Program The ecological portion of the POS consists of two discrete segments: 1) a bay-wide sampling program designed t6 esti-mate target species standing crops within the Delaware River between River Miles (RM) 0-72; and 2) an intensive sampling program to es:t.imate the total number* of target species im-.

pinged and* their survival rates on the Salem circulating water system (CWS) intake screens as well as a sampling pro-gram to estimate the total number of target species entrained and their sur1ival rates through the* CWS.

Details of both programs are consistent with those presented in our report:

  • summary Assessment of Weakfish* Impingement: Summer 1978" ~
~~.E&G, November 1978).

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. t e*

Mr. Lunenfeld

.:..2-July 1, 1979 The tentative samplil'.lg* schedule for first quarter (June to September, 1979) studies is attached (Attachment 3). It is anticipated that bay-wide population (standing.crop). esti-mates will be obtained on the dates indicated, conditions permitting~ Sampling impingement and.entrainment at Salem is contingent on station operation.

Salem started a planned refueling outage on April 3, 1979, and is anticipated to re-turn. to service aft.er August 8, 1979.

At the time the station returns to service, sampling will. be initiated on the schedule specified in the POS.* We are currently.revising our procedures manual sectic;ms for adult.fisheries, zooplankton, ichthyoplankton, impingement and entrainment sampling.

These procedures include descriptions of sampling locations and the equipment to be used during the bay-wide population estimates.

The manual *will be available at the first quarterly meeting *.

Quarterly.Progress Meetings We agree to participating in quarterly progress meetings to assess progr~ direc.tion and progress.. It is proposed that the first meeting be held on July 17, 1979, to permit technical. representatives of NRC, EPA, PSE&G and the Delaware Department of Natural Resources: {DNR) *to attena.*

Emergency RespOnse Team*and Biweekly* Meetings As noted abover it. is anticipated. that Salem Unit 1 will not return to service* from its refueling outage* until August B, 1979.

Based on. historical data for 1977 and 1978 as presented*.in the 1978* Weakfish Report, it is anticipated that there* *will* be minimal impingement. of weakfish once it returns from refueling:. It is proposed that any discussion of the Emergency Response.Team be postpcined until the first quarterly.

meeting* scheduled for July~*

  • rf.you have.any* further technical questions, please contact Mr;. Mark London (201/430-8036) of our** Licensing and Environment Department *.

Vetj truly yours,

=cr-' *,;f* ;11_. \\

l I

Mr. Lunenfeld CC:

Dirk C. Hofman, Acting Director Division of Water Resources July 1, 1979 New Jersey Department of ~nvironmen~al ~tection Dr. Robert Samworth, Section Leader~

Aquatic Resources Section -

USNRC Mr. H. Howlett, Chief Engineer Delaware.River Basin Commission Mr. Bruce Pyle, Chief NJDEP Bureau of Fisheries Mr. Paul Hamer, Principal Fisheries Biologist NJDEP Di7ision of Fish, Game and Shellfisheries Mr. Gary Zeck, Licensing Project Manager USNRC Division of Operating Reactors Mr. Roy Miller Delaware Department of Natural Resources Divison of Fish and Wildlife Dr. John Pearce

.National Marine Fisheries Service Ms. Mary o *. Henderson, Township Cle;:k Lower Alloways Creek Township DSOl/3

  • -*--*---~ -------~----- **-

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e A~iC::i!EHT l UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

'REGION Ii 26 F"EDERAL PLAZA.

NEW YORK. NEW YORK 10007.

MAY 2 s-197g

  • CERTIFIED MAIL - RETIJRN RECEIPT REQUESTED Mr. James A. Shissias General Manager - Environinentc3.LAff airs

, Public Service Electric and Gas Company 80 Park Place Newark, New Jersey 07107 Re: Section 316(b) Plan oiStudy for the

  • Salem Nuclear Generating Station Permit No. NJ0005622

Dear Mr. Shisslas:

GENERAL MA;~,...

ENVIRONMENTAL AFf Al11->

1la1cd.********** ***** *****.

Refer to:

0 Dept 0 JAS

~RAG.

r *; llBEl

= JJD t.J LRD JUNl 1979*

0 SPS 0 RFV 8

KJB RW 0 PJW D

In accordance with Condition 12(c) of the above-referenced permit, Region II of th~'*.

U.S. Environmental Protection Agency (EPA) hereby approves your company's Section* 316(b) plan of study submitted on October 16, 1978, subject to:

. incorporation'. of_ the revisiOns submitted on December 121. 1978 and. the modificatio*n specified ~ow.

The New Jersey* Department of

  • Environmental Protection. * (NJDEP) has also.

reviewed the plan of study* and subsequent revisions7 and has. i5sued its approval, a copy of which is enclosed.

As a conditian of this approval,- PSE&:G shall modify Section -6~2.3'- - Environmentat Studies,~ to include* calibration studie5 of* the pumps anr'. larval tables'. used to estimate entrainment mortality. The objective.of such stua1es is to determine the

. efficiency and mortality associated with the use of the pumps_ and larval tables at both the)n.~ake and discharge sampling locations.:.

  • . A detailed description *of the sampling* program including. propbsed sampling dates and gear.specifications: shall be submitted to EPA arid NJDEP within 30 days of
  • ~

receipt of this: letter. It is also recommended that meetings be held during the months. of June,.. September,. *December and March to assess. the, progress and direction of the studies.

... 2-lJi light of th(! high rates of impingement of juvenile weakfish which occurred at the Salem Nuclear Gci:ierating Station last summer, 1* would further suggest that we Initiate biweekly meetings and establish an emergency response team* *in preparation for handling such potential reoccurrences.

The Section 316(b) demonstration incorporating the. results of the study shat! be.

. submitted to the. Regional Administrator and the Director~ Division of Water Resource5, NJDEP by June 15, 1981.

Please contact Harvey Lunenfeld, P.E., Chief, Energy and Thermal Wastes Section

  • at (212) 264--9878 or at the above address to initiate formation of the Emergency
  • Response _ream. ** Any other questions concerning this matter may also be addressed to...Mr.-t'unenfeld..

Thank you for your cooperation in this matter.

  • Enclosure cc:* Dirk C;. Hofman~- P.E., Acting Director Division,of Water Resources.

New Jer~ey Department of Environmental Protecti~n Dr:. Robert Samworth,, Seqion Leader Aquatic Resources Section

, U.S. Nuclear Regulatory Commission

~;.

~!a.1.r nf NrID Jfrrsry

  • OE*PARTMENT OF ENVIRONMENTAL PROTECTION DIVISION OF WATER RE:SOURCES

... o. llOX Vfljf.2 'cN"-029.

TRENTON. Nrw.IERSCY 0862~

Mr. Harvey Lunenfeld, P.E.

Chief, Energy & Thermal Wastes Section US EPA,. Region lI 26 Federal Plaza

. New York, New York. 10007

Dear. Mr~ lunenfeld:

APR'2 0 1979

(.~

The New Jersey nepartment of Environmental Protection (NJDEP) has completed.its review of Public Service Electric and Gas Company's (PSE&G) proposed Section 316(b) plan of study for the Salem Nuclear Generating. Station.. The proposed plan of. study, as contained in th~ company's October 16, 1978 and December 12, 1978 submissions, incorporates work items that deal with the concerns raised by "NJDEP during review.of the plan of study and. is acceptable*.*

. We recorrrnend approving the plan of study proposed by PSE&G so that. the study program can* start as soon as possible..

DCH:SPL:njf..

. ~

cc: Director *Conrad Simon, EPA.

Assfstant. Commissioner Arbesman, DEP

  • Bruce Pyle,.* DEP Herbert Bennett, DEP

ATTACHMENT 2 SALEM NUCLEAR GENERATING STATION 316 (b) DEMONSTRATION PLJ..N OF STUDY OUTLINE 1.0 EXECUTIVE

SUMMARY

2.0 PLANT DESCRIPTION AND PERFORMANCE CHARACTERISTICS (TWO-UNIT) 3.0 WATER BODY DESCRIPTION (HYDRAULIC, PHYSICAL, CHEMICAL, THERMAL) 3.1 Primary Study Area (GM-20)*

3. 2 Secondary Study Area (GM-21) 3.3 Zone of Potential Involvement (GM-22) 3.4 Estuary Currents 3.5 Estuary Quality 4.0 ENGINEERING DESCRIPTION (CIRCULATING AND SERVICE WATER INTAKES AND SYSTEMS) 4.1 Site Location and Layout (GM-2~)

4.1.1 50 Mile Radius Map 4.1.2 Site Plan and Features 4.1.3 Bathyrnetric* Surveys 4~2 Meteorology ~GM-27) 4.3 Additional Stresses (GM-:-27; e.g. Hope Creek)

~.4 Existing Cooling Wate~ Intake Stru~tures 4.4.1 Structures (GM-27) 4.4.1 Intake*Velocities (Le.g. Endeco studies) 4 *. 4. 3 Pumps (GM-28)

  • GM refers to EPA 316(b) Guidance Manual, May 1, 1977.

MDL M P79 32 01/1 Page 1 of 14

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SALEM NUCLEAR GENERATING STATION 316 (b) DEMONSTRATION PLAN OF STUDY OUTLINE 4.4.4 Biocides (GM-28) 4.4.5 Pressure -

Time Relationship (GM-28) 4.4.6 Time -

Temperature Relationship 4.4.7 Other Relevant Engineering Data, (GM-28) 5.0 AQUATIC ECOLOGY 5.1 Community Description.

5.1.1 Structure of Components 5.1.2 Population Estimates

    • 5. 1. 2. 1 Temporal 5.1.2.2 Spatial 5.2 Balanced Indigenous Population Concept - Valid for Demonstrations?

5.3 Study Area Impact Potential -

High/Low Assessment 5.4 Target 5.4.1 Organisms (GM-1\\

Definition - relationship organism" 5.4.2 Selection Criteria 5.4.3 Designation (GM-17) to "critical 6.0 ECOLOGICAL IMPACT ASSESSMENT STUDY PLAN 6.1

  • Purpose To determine the extent and effect of impingement and entrainment by Salem 1 and 2 on Target Organisms by relating* impingement and entrainment (I/E) levels to population levels.

Additional

  • studies may be undertaken as the need arises.

M P79 32 01/2 Page 2 of 14

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SALEM NUCLEAR GENERATING STATION 316 (b) DEMONSTRATION PLAN OF STUDY OUTLINE 6.2 Detailed Plans 6.2.l Impingement M P79 32. 01/3

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Combination of two analyses will yield the appropriate data on impingement impact (1) estimation of population involvement, and (2) effects of impingement on. individuals (i.e., survival).

6.2.1.l Abundance Estimate Method - Collection of a minimum of one-minute samples of traveling screen wash water in one of the two available fish counting pools.

Parameters recorded during sample collection will include:

Tidal elevation Tidal stage Water temperature Salinity Air temperature Number of pumps operating Number of screens operating Screen speed Detritus weight Abundance by species Frequency -

Samples will be collected six days per week, as conditions permit.

There will be no sampling during periods of plant outage.

Attempts will be made to collect 10 samples per 24-hour period~ as conditions permit.

6.2.1.2 Population Estimate Method -

Trawl surveys based on simple random design will be conducted to provide population estimates on selected Target Page 3 of 14

SALEM NUCLEAR GENERATING STATION 316 (b) DEMONSTRATION PLAN OF STUDY OUTLINE Species Organisms.

(Specific sampling regions (river miles) and gear employed are listed below

("Herrings" are defined as:

American shad, alewife and blueback herring):

Region (River Milel)

Gear Tvpe2 white perch striped bass bay anchovy weakfish spot 40-73 40-73 0-60 0-73 0-73 0-60 bottom trawl bottom trawl mid-water trawl bottom trawl bottom trawl bottom trawl mid-water trawl Atlantic croaker herrings 40-60 Species white perch striped bass bay anchovy

  • weak£ ish spot Atlantic croaker herrings 1 Statute Frequencv -

The population estimates are proposed at frequencies that permit sampling during periods of occurrence.

Species to be sampled, frequency and sampling period are described below:*

Months Samplea3 November-March November-March April-August June-August May-August October-Janu*ary

  • oc tober-November Frequency of Samplirig3 biweekly to monthly biweekly to monthly biweekly to monthly biweekly biweekly biweekly to monthly weekly to biweekly

. 6.2.l.3 Survival Estimate Method -

Specimens for survival will be collected by diverting a minimum of one minute of traveling screen 2 Or other gear as appropriate 3 Conditions permitting M P79 32 01/4 Page 4 of 14

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SALEM NUCLEAR GENERATING STATION 316.(b) DEMONSTRATION PLAN OF STUDY OUTLINE wash water to either of the two fish counting pools.

Individuals will be designated live, dead or damaged based on specific criteria.

Latent survival studies from 1 to 96 hours0.00111 days <br />0.0267 hours <br />1.587302e-4 weeks <br />3.6528e-5 months <br /> will be performed to verify initial survival rates.

Survival samples will include condition by species, weight and length-frequency data and other parameters included in the abundance samples.

Frequency -

Considerably less variation has been observed in historical survival rates and length frequencies, therefore fewer survival samples will be taken then abundance samples.

Under normal conditions, a minimum duration, one-minute sample will be collected at approximately 6-hour intervals, 3-days per week, conditions permitting.

If impingement rates for target species exceeds 30 specimens per minute for two samples during one day, survival samplihg will be increased to four samples per day, six days per week within two days.

When the impingement rate of the target species decreases to 30 specimens per minute or less, for six consecutive sampling day~, the normal sampling frequency will be

  • resumed.

6.2.2 Entrainment M P79 32 01/5 The combination of two analyses will yield the appropriate data on entrainment impact:

(1) estimation of population involvement and (2) effects of entrainment on individuals (i.e., survival).

Page 5 of 14

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SALEM NUCLEAR GENERATING STATION 316 (b) DEMONSTRATION PLAN OF STUDY OUTLINE*

6.2.2 Entrainment (Cont'd)

M P79 32 01/6 6.2.2.1 Abundance Estimate Method -

To estimate the number of macroinvertebrates and ichthyoplankters entrained, abundance samples will be collected over 24-hour periods at approximately 4-hour intervals with a high capacity pump sampler from an area behind the traveling screens.

These samples will provide density data which can be used with CWS intake volume data to estimate the number of individuals of a target organisms entrained during that 24-hour period.

Samples will, conditions permitting, be taken during plant operation.

Operation is defined for this section of the plan-of-study as either (1) the simultaneous rejection of heat to circulating water system (CWS) condenser 12 and simultaneous operation of CWS pump 12B, or (2) the CWS condenser 11 and simultaneous operation of CWS pump llA.

These are the only available sampling locations.

Frequency -

Sampling shall be done according to the following schedule:

Page 6 of 14

Month Jan.

Feb.

. Mar.

April

. (3rd week) early May

  • mid May late May June July
  • Aug.

Sept.

SALEM NUCLEAR GENEFATIN:; STATICN 316 (b) DEMCNSTPATION PIAN OF STUDY Abundance Estimates per Month none none one one one one2 one f our3 f our3 Target Species Garrunarus spp

  • Garmnarus spp., river herrings,
  • whi ~e perch
  • Garmnarus spp., white perch, river herrings Garmnarus spp., white perch, river herrings bay anchovy weakfish bay anchovy, weakfish bay anchovy, weakfish NeornySis americana,
  • Gammarus spp *.

bay anchovy, weakfish Neanysis americana, Garrmarus spp.

  • bay anchovy; -weakfish
  • Neomysis americana,

.. Garrmarus spp.

one-two4 * *

    • Neomysis americana,

.*Ganrnarus

  • spp~**

Range (River Milesl) of Standing Crop Estimate 50-73 50-73 50-73 0-50 a-so a-so o-so.

. 0-50 M P79 32 01/7 Page 7 of 14

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SALEM NUCLEAR GENERATIN3 STATICN 316 (b) DEMCNSTRATICN PI.AN OF STUDY OUI'LINE Month Abundance Estirrates per Month Target Species Range (River Milesl)of Standing Crop Estimate Cct.

one N:Jv.

one Cec.

none*

1 Statute Atlantic croaker, Ne?rnysis arnericana, Garmnarus spp.

Atlantic croak.er, Neornysis arnericana, Garmnarus spp.

.2 Only abundance samples will. be *taken, no standing crop estimate will be performed *.

3 'Ihree sarrples will have attendant river standing crop estimates.

The additional sample will be used to better estimate entrain-ment abundance.

4 Effort dependent on NeaT¥sis americana population levels.

M P79 32 01/8 Page 8 of 14 0-50 0-50

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SALEM NUCLEAR GENERATING STATION 316 (b) DEMONSTRATION PLAN OF STUDY OUTLINE M P79 32 01/9 6.2.2.2 Population Estimate Method -

Standing crops of target organisms (ichthyoplankton, macroinvertebrates only), will be estimated using oblique tows of 1/2-rneter conical plankton nets in the areas specified above.

Frequency -

Standing crop estimates will be made on the same schedule as the abundance estimates for the same target organisms, conditions permitting, except for the following:

(1) the mid-May sample will not have an asspciated standing crop estimate, and (2) only three periods in June and three periods in July will have attendant standing crop estimates as noted previously~

6.2.2.l Survival Estimate To quantify the survival of entrained organisms, samples will be collected at the intake and discharge monthly during March through May, and September through November, and twice monthly during Jun& through August, conditions permitting.

Samples will be collected over 24-hr. periods at approximately 4-hr. intervals with a high capacity pump sampler.

CWS intake samples will be collected from just behind the traveling screens and will be integrated with depth -i,f current experiments prove successful.

Discharge samples will be collected from a port located in the CWS discharge pipe.

Physicochemical parameters to be measured during sample collections shall include water temperature, dissolved oxygen, and salinity.

Page 9 of 14

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  • SALEM NUCLEAR GENERATING STATION 316 (b) DEMONSTRATION PLAN OF STUDY OUTLINE 6.2.2.3 Survival Estimate (Cont'd)

Specimens collected at the intake and discharge will be examined initially and categorized as live, stunned, or dead.

Specimens determined to be live stunned shall be held for 12 to 24 hr. at ambient river temperature to determine latent mortality.

Samples will be collected, conditions permitting, during plant operation.

Operation is defined for this section of the pian of study as simultaneous rejection of heat to CWS condenser 12 and operation of CWS pump 12B.

This is the only available location for survival estimates.

Additional. survival samples will be collected, when possible and conditions permit, during periods when ambient water is circulated through CWS's components, without the addition of heat.

Mortality due solely to mechanical damage and pressure may be assessed.

6.2~3 Experimental Studies M P79 32 01/10 The following experimental studies will be conducted:

6.2.3~1 Simulated Entrainment Stbdy The simulated entrainment studies which have been conducted according to Environment Technical Specifications will be used to evaluate primary entrainment.

These and other thermal studies (behavioral and tolerance) will be modified to reevaluate an proposed changes in the discharge temperature.

The frequency of these studies is based on availability of test specimens.

Page 10 of 14

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SALEM NUCLEAR GENERATING STATION 316 (b) DEMONSTRATION PLAN OF STUDY OUTLINE 6.2.3.2 Latent Impingement Survival Study Latent survival studies will be conducted.

Survival rates over 96 hrs. will be compared for impinged and non-impinged samples under controlled conditions.

The frequency of these studies will be based on availability of test specimens.

6.2~3.3 Impingement Recirculation Study This study will be conducted to determine the percent of organisms recirculated at the CWS intake.

By marking impinged organisms, returning them to the river via the fish bypass and noting their return on the traveling screens, an estimate of recirculation will be obtained.

This study will be performed as time and conditions permit.

6. 2. 3.. 4 Impingement Collection Efficiency Study Collection efficiency will be determined by marking a known sample of fish and releasing them immediately in front of the CWS intake screens.

This study will be performed as time and conditions permit.

6.2.3.5 Larval Table and Pump Calibration*

Study.

The purpose of this study is to determine the efficiency and mortality associated with the use of the larval pumps and tables at both the intake and discharge sampling locations using available test organisms.

This study will be performed as time and conditions permit.

6.2.4 Commercial and Sport Fisheries Data 6.2.S State and Federal Data

SALEM NUCLEAR GENERATING STATION 316 (b) DEMONSTRATION PLAN OF STUDY OUTLINE 6.3 Results Anticipated 6.3.1 Impingement 6.3.1.1 Estimates Number of organisms impinged by period (day, week, month, year).

Survival by period, intake operating mode, tidal stage.

Plant and study area population estimates by period.

6.3al.2 Narratives Population distributions and movement (temporal and spatial) 6.3.2 Entrainment 6.l.2.1 Estimates Number of Organisms Entrained by Period.

Survival by Period 6.3.2.2 Narratives Spatial and Temporal Population Distributions and Movements.

7.0 ENUMERATION AND ASSESSMENT OF INTAKE-RELATED IMPACTS OF STATION OPERATION.

7.1 Source Water Involvement - Narrative 7.2 Population Pressure Caused by I/E

  • 7.2.l Summary of Impingement and Entrainment
7. 2. 2 Summary of Population Data 7.2.3 Summary of Survival Data M P79 32 01 12 Page 12 of 14

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SALEM NUCLEAR GENERATING STATION 316 (b) DEMONSTRATION PLAN OF STUDY OUTLINE 7.3 Unusual Occurrences - Narrative/Perspective 7.3.l Observed During Monitoring Period (e.g.

weak'f ish experience) 7.3.2 Historical Occurrences 7~4 Probability of I/E 7.4.1 Distribution (Map) 7.A. 2 Survival 7.4.* 3 Impact (positive/Negative) of Loss 7.5 Community Impact Assessments (GM-45.et seq) 8*. 0 ENGINEERING ALTERNATIVES (FEASIBILITY AND COST EFFECTIVENESS) 8.1 Modify Screens (Impingement Tests* Involved) 8.2 *Discharge at Alternate Ends of Structure

  • (Impingement Tests* Involved) 8.3* Run. Screens at Various Speeds (Impingement Tests Involved)
  • 8. 4 Use a Different.Biocide or no Biocide *(System**

Tests Involved)

  • *. 8 ~ 5
  • Intermittent Plant Operation..

. 8. 6. Modify 1'umps

8. 7
  • Enla.rge In take 8.8 R~loca:te Intake a.* 9 Install Cooling Towers M P79 '32 01 13 Page 13 of.14

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SALEM NUCLEAR GENERATING STATION 316 (b) DEMONSTRATION PLAN OF STUDY OUTLINE 9.0 ECOLOGICAL ASSESSMENT OF ENGINEERING ALTERNATIVES 10.0 COMPANY'S PLANNED MODE OF OPERATION (TO MINIMIZE ADVERSE ENVIRONMENTAL IMPACT) 10.1 Critical Periods of the Year 10.2 Feedback to Plant Operators 10.3 Planned Responses to Environmental Events 10.4 Continued Monitoring

11. 0 APPENDICES 11.1 Data 11.2 Methods
11. 3 Sample Calculations, etc.

11.4 Bibliography M P79 32 01/14 Page 14 of 14

e ATTACHMENT 3 e

TENTATIVE 316 ( b)

SA..~PLING SCHEDULE FROM JUNE 1 THROUGH SEPTEMBER 30, 1979 Sampling Week June 4 - June 8 June 11 - June 15 June 18 - June 22 June 25 - June 29 July 2 - July 6 July 9 - July 13 July 16 - July 20 July 23 - July 27 July 30 - August 3 August 6 - August 10 August 13 - August 17 August 20 - August 24 August 27 - August 31 September 3 - September 7 September 10 - September-14 September 17 - September 21 September 24 - September 28 MP792321 Pop. Est.

Surf ace trawls Plankton study Bottan trawls Plankton study Sampling not scheduled Bottan trawls Plankton study Surface trawls Plankton study Bottan trawls Plankton study Sampling not scheduled Bottom trawls Plankton study Sampling not scheduled Surface trawls Plankton study Botton trawls Bottom trawls Plankton study Sampling not scheduled -

Plankton study

.Sampling not scheduled Sampling not scheduled Sampling not scheduled On Site Studies Ent.

Imp.

6 24-hr.

periods per wk. abundance Abundance 3 24-hr.

periods per wek~ survival Abundance Abundance Abundance Abundance Abundance Abundance

& Survival Abundance

& Survival.

Abundance

& Survival Abundance

& Survival

.-. *-*- ----~ ---*---*--*--------*----------*---* -*-.-~-----~*-----. --

~-------------

Notes:

TENTATIVE 316(b) SAMPLING SCHEDULE (Continued)

1.

Bottom trawls - target species

2.

Surface trawls - target species

3.
  • Plankton study-- target species
c. regalis*

L. xanthurus A. mitchilii A. mitchilli C. regalis Neomysis americana Gammarus ssp

4.

All field samplin; conducted between River mile 0 to River mile 73.

5.

Entrainment survival sampling gear evaluation tests scheduled as test organism availability permits.

MP792321/2

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