ML18086B043

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Forwards Neomysis Americana Target Species Specific Rept Per Discussion at Technical Advisory Group 811012 Meeting
ML18086B043
Person / Time
Site: Salem  PSEG icon.png
Issue date: 11/13/1981
From: Shissias J
Public Service Enterprise Group
To: Vaughn R
ENVIRONMENTAL PROTECTION AGENCY
Shared Package
ML18086B045 List:
References
NUDOCS 8111230417
Download: ML18086B043 (6)
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Text

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-1 PJblic Service Electric and Gas Company 80 Park Place Newark, N.J. 07101 201 /430-5858 Mailing Address: P.O. Box 570, Newark, N.J. 07101 James A. Shissias General Manager Environmental Affairs November 13, 1981 Mr. Robert Vaughn, Chief Water Resources Section

-U.S. Environmental Protection Agency - Region II 26 Federal Plaza New York, New York 10278

Dear Mr. Vaughn:

NEOMYSIS AMERICANA REPORT APPENDIX II - 316(b) DEMONSTRATION SALEM NUCLEAR GENERATING STATION Enclosed is the Neomysis americana target species specific report as discussed at the last Technical Advisory Group (TAG) meeting*on October 12, 1981. Please transmit your comments to us by December 21, 1981. This will aid us in preparing our responses prior to the next TAG meeting scheduled for January 20, 1982.

The American shad report scheduled for December 1, 1981 sub-mittal will be transm~tted to you and TAG prior to the next TAG meeting. The shad report was delayed during the comple-tion of the N. americana report, and by recent availability of a computer-program to convert LORAN C coordinates to dis-tance traveled. This conversion is now in progress.

Very truly yours, Encl.

HD8 1

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The Energy People 95-5000 (1.5M) 1

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Mr. Robert Vaughn 11/13/81 CC: F. Locicero - EPA E. Santoro - EPA T. Fikslin - EPA S. Gorski - NMFS D. Beach - NMFS H. Howlett - DRBC R. Kausch - DRBC R. Albert - DRBC T. Burr - FWS J. Miller - FWS M. Masnik - NRC

.R. Miller - DEDNR

s. Lubow - NJDEP F. Takacs - NJDEP J. Makai - NJDEP M. Henderson - LACT /

Director NRR - NRC.;.../"

Office of I&E - NRC Salem Free Public Library HD8 2 I

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P~blic Service Electri~ and Gas Company 80 Park Place Newark, N.J. 07101 201/430-5858 James A. Shissias General Manager En\(ironmental Affairs

Dear Mr. Vaughn:

CONDITIONAL MORTALITY RATE MODEL PARAMETERS SALEM NUCLEAR GENERATING STATION 316(b) DEMONSTRATION NPDES PERMIT NO. NJ0005622 At the Octo~er 21, 1981 Technical Advisory Group (TAG) meet-

~* .Ing, the Company agreed to submit a list of conditional mor-tality rate (CMR) model parame~ers that could be varied.

The results will be presented during the bay anchovy model-ing workshop to be held prior to June 1982. -We stress, as we did in our August 6, 1981 letter to R. Caspe, that the

~orkshqp presentation will be preliminary in nature because of the anticipa~ed ongoing collection of bay anchovy data during the summer of 1982, and should not be construed as the final demonstration for the station's effects on the species. The parameters discussed below can be varied to produce CMR's regarding some of the available mitigation op-tions. Biological and population parameters listed can be us-ed.to determine the "range" of these estimates.

EMPIRICAL IMPINGEMENT MODEL (EIM)

The EIM is a simple, empirical model based on full species recruitment t0 the collec~ion gear and requires only esti-mates of the lnJtial number of impingable organisms avail-able, the number impinged, and the rate of total mortality during the period of vulnerability.

o Mitigation Parameters The impingement rate, corrected fo~ impingement mortality and several other factors is related to the volume of water withdrawn from the river by the plant. This con~

sumption can be varied by changing the number of pumps in The Energy People 95-500011.5Ml 11-7S

I/

Mr. Robert Vaughn

  • e.

. 11/16/81 service (P )*, the duration of impact (T), and the timing of impact gased on station operation. Pp may be varied from 0 to 100% capacity. The effect of auration and timing on the impact may be observed by changing scheduled refueling outages and duration. Refueling occurs once per year per unit and typically lasts about two months.

o Biological Parameters A standard dataset i~ being developed. Parameters in this dataset will include:

1. Initial population size,

~. Instantaneous total mortality rate, and

3. Organism density in intake water.

EMPIRICAL TRANSPORT MODEL (ETM)

The ETM is a empirical .model based on partial species re-cruitment to the intake and requires information on organism movement and distribution characteristics, station opera-tion, induced mortality data, and period of vulnerability to the intake by life stage.

o Mitigation Parameters Station withdrawal rates or volumes (P) may be varied with

1) constant delta T, or 2) with corresponding changes in delta T whicW will effect the initial mortality rate

( M1) a11d_ the latent mortality rate (ML) associated with passage of the organism through the circulating water system. Pump capacity (P) may be varied from 0 to 100%.

Delta T may he held constant at a.sco or varied based on station operatton from O to 15.0C 0

  • The effect of dura-

"tion and timing of impact. may be observed by changing sch.eduled refueling outages and their durations as in the EIM.

o Biological Parameters A standard dataset is also being generated. Parameters in this dataset will include:

1. Entrainment duration,
2. Oldest entrainable age,
3. W-factors (intake versus river concentrations),
4. D-factors (regional distributLon factors),
5. Duration of reproduction period, and
6. Spawning fraction over time.

Mr. Robert Vaughn 11/16/81 "MITIGATION FEATURES At the present time, the Company is examining the technical feasibility and cost of various alternate intake and cooling system technologies for installation at Salem. Each of these alternatives has at least one impact mitigation fea-ture associated with it. These features include: 1) . flow reduction, 2) velocity reduction, 3) entrainment reduction by exchanging entrainm~nt losses for impingement losses, and

4) changing the location of the intake structure. Quantita-tive assessment of these features (except 1 and possibly 3)

. cannot be modeled employing the ETM or EIM models *. This is because the appropriate parameters are not. available within the.models or the appropriate data are not available from the literature or onsite data.

Reliability and confidence in the CMR estimates generated by the ETM and EIM will be a topic of discussion at the June 1'982 bay anchovy workshop.

If you have any questions on the parameters presented above,

. please call Mr. M. D. London (201/430-8074) of the Licensing and Environment Department.

Very truly youTs, HS1 1/3

M~. Robert Vaughn

  • 11/16/81 CC: F. Locicero - EPA E. Santoro - EPA T. Fikslin - EPA S. Gorski - NMFS D. Beach - NMFS H. Howlett - DRBC R. Kausch - DRBC R. Albert - DRBC T. Burr - FWS J. Miller - FWS M. Masnik - NRC
  • R. Miller - DEDNR S. Lubow - NJDEP F. Takacs - NJDEP J. Makai - NJDEP M. Henderson - LAC~

Director NRR - NRC Off ice of I&E - NRC Salem Free Public Library HS1 4

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