ML17331A441
| ML17331A441 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 09/16/1980 |
| From: | Gaulke A AMERICAN ELECTRIC POWER CO., INC. |
| To: | Hickey C Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML17326A732 | List: |
| References | |
| NUDOCS 8009190422 | |
| Download: ML17331A441 (6) | |
Text
REGUL4l RY I>>FOR'ARATION DISTHIBUT IO'i o YSTEN (RIOS)
ACCESSION MHR:8009190422 DOC ~ DA TE: 80/09/16
~lOTARIZEO:
NO FACIL:50 315 Donald C ~ Cook>>uclear Po~er Planti Unit it Indiana 50 3lb Donald C.
Cook 'lucl ear Power Plants Unit 2t Indiana A 4 T l I ~ le 4 w', E AUTHOR AFF ILI A T IOH GAULKEi4~ E.
American El act ric Power Co ~ i Inc.
REC IP.'~A'lE 0lECIP? EST AFF ILI4TIO'I HICKEY P C ~ R ~
Assistant Director for Environ~ental Technoloay DOCKET 05000315 050n031b
SUBJECT:
Forwards summaries of imoinaed fish for 4or l7
~ay 1980 in resoonse to
'4HC requests Also forwards redated data 8
reots to aid in evaluation of ecoloaical significance of event.Encls availaole in Central Files only'ISTSISIJT TOM COOE:
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TITLE: Periodic Environmental
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UNITEO STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, O. C. 20565 MEMORANDUM FOR:
TERA CORPORATiON FROM:
US NRC/TIDC/DOCUI~T MANAGEseENT BRANCH SIJBJECT:
Special Document Handling Requirements Cl'x.. Please use the following special dist"ihution list for Ae attached document.
2.
The attached document requires the following special
~
I considerations:
Cl..Do not serd oversize enclosures to. the NRC PDR.
f Only one oversize enclosure was r ceived - please return for Regulatory File storage. ~~ 1F(4&~
CI Proprietary information - send only non-proprietary portions to the NRC PDR.
cc:
DMB Files TiDC/DMB Auto Signature
AMERICAN ELECTRIC POP(ER Service Corporation P. O. Box 487, Canton, Ohio 4470l (216) 452-5721
)I C 16 September'1980 Mr. Clarence Hickey Fisheries Biologist Nuclear Regulatory Commission Office P234, Washington, D.C.
20555
Dear Mr. Hickey:
In response to'our request, I am enclosing the April and May monthly summary of impinged'ish at the Donald C.
Cook Nuclear Plant (Enclosures 1
8 2).
Also enclosed to aid you in evaluating the ecological significance of this event is the foIIowirig:
- 1) table of monthly 'actual weights of impinged fish for the year 1975 through 1979'Ehclosure 3), 2) the Cook Nuclear Plant 31'6(a) and 316(b) demonstration entitled "Report on the Impact of Cooling. Water used at the Donald C.
Cook Nuclear Plant" (Enclosure 4), 3) a generic 316(b) study of Lake Michigan entitled "The Lake - Wide Effects of Impingement and Entrainment on the Lake Michigan Fish Populations" (Enclosure 5), 4) an impingement and entrainment impact assessment using the adult equivalent approach titled, "On the Calculation of Production Foregone Due to Entrainment and Impingement of Fishes at the Donald C.
Cook
'uclear Plant" (Enclosure 6), 5) a supplemental
- report, "Supplemental Report Demonstrating Compliance with Section 316(b) of the. Clean Water Act" (Enclosures 7a and 7b),
and 6) an independent analysis of the Cook Nuclear Plant intake by Argonne National Laboratory titled, "Determination of Compliance with PL 92-'500 Section 31'6(b) for the Donald C.
Cook Nuclear Power Plant of the Indiana and Michigan Power Company" (E'nclosure 8).
Enclosures 1
8 2 are the monthly impingement summaries for April and May which are in two parts.
One part is a'typewritten table with three columns:
Day, Weight, Volume of Water Pumped".
This table is daily totals of all fish impinged at the Cook Nuclear Plant.
The second part is a computer printout which shows a species-by-species total number and total weight of fish impinged on every fourth day during the month.'hese every fourth day dates are indicated by an asterisk on'he typewritten table.
The last page of the computer printout has two columns titled "Estimated Total for the Month.
Number and Weight".
These estimated total numbers and total weights by species are obtained by multiplying the average every fourth impingement rate by the total number of days in that month.
Note one correction on the April daily weight summary, asterisks should appear by the 26 and 30 April weights.
You will note that the estimated monthly impingement using every fourth day data do not always agree closely with the actual weight of impinged fish, p+
I particularly note April.
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Nr. Clarence Hickey 16 September 1980 Enclosure 3 is a summary table showing the actual weights by month of all fish impinged at the Cook Nuclear Plant from 1975 through 1979.
This table was included for comparison purposes with the April and May impingement rate.
=
Enclosure 4 is the initial 31'6 submittal to the Michigan Water Resources Comnission.
It is a combined 316(a) and 316(b) demonstration.
When this report was prepared only about two years of impingement data were available and the data were for Unit 1 'only.
Unit 2 did not begin operation until January 1978.
Most entrainment data at this time were raw data.
Estimated daily entrainment rates were available for phytoplankton, zooplankton,
- benthos, fish: eggs, and fish larvae as numbers of individuals per unit volume.
The entrainment impact assessment in this report was made by estimating the lost production of piscivorous fish (salmonids).
The assump-tions in this conceptual model were that the biomass conversion efficiencies from one trophic level to another were the same as those cited in E. P.
Odum's "Fundamentals of Ecology" (1971'),and the impact of 2-unit operation was assumed to be that of 1-unit operation times the ratio of 2-unit vs. 1-unit cooling water flow, ie, Unit 1 flow X 2.37'.
The estimated annual entrainment losses plus the actual annual impingement losses were compared to the sport catch of salmonids from Lake Michigan.
The actual and estimated impacts combined comprised 15 of the sport catch.
Our consultant concluded, therefore, that the plant impact was not'cologically significant.
Enclosure 5, will help you obtain a perspective of lake-wide fish impingement impacts on the'otal fish biomass.
Since alewives comprise 97K of the fish impinged during April and Nay 1978, I will use this species as an example of the impact assessment from'this enclosure.
From this report, during 1975, 17 power plants on Lake-Michigan entrained and impinged an alwife biomass equivalent to about 0.064Ã of the total alewife biomass in Lake Michigan or about 5X of the total commercial catch of'alewives for 1974.
The Cook Plant's increased impingement rate during April and May 1980 does not significantly change either of these percentages.
Enclosure 6 was submitted to the Michigan, DNR because the state personnel did not agree with the Company 's initial entrainment impact assessment method.
The production foregone calculations were made on alewives, rainbow smelt, spottail shiners, and yellow perch.
The estimate of production foregone in the original 31'6 demonstration was very similar to the estimate in this report.
The authors also'presented a critical review of the adult equivalent approach to entrainment impact assessment.
.In their opinion the adult equivalent method has a number of very serious flaws.-
Enclosure 7 discusses alternate intake technologies for the Cook NucIear Plant.
Two technologies, namely wedge-wive screened intakes and fine mesh traveling screens, were considered.
Additionally, neither of these technologies have been proven to be viable alternatives in this particular application.
The largest wedge-wire screened intake presently existing in the United States is on a water intake system which is only a very small fraction of the cooling water flow for the Cook Nuclear Plant.
The fine mesh traveling screens appeared to be an attractive alternative based upon cost.
- However, a system designed
Mr. Clarence Hickey w3 16 September 1980 to safely return fish eggs and larvae to the lake has never been designed or built.
The engineering, construction, installation, and operation cost of both of these alternate technologies were too great to warrant their installation at the Cook Nuclear Plant.
Enclosure 8 is a report written by Dr.
R.
Sharma and Mr. R. Freeman, III, of Argonne National Laboratory, titled "Determination of Compliance with PL 92-500 Section 316{b) for the Donald C.
Cook Nuclear Power Plant of the Indiana and Michigan Power Company".
This report was funded by the U.S.
Fish and Wildlife Service, Region III.
The authors of this report concluded that the Cook Nuclear Plant alone probably does not threaten the coho fishery but that all impingement and entrainment combined on the lake may be significant, that fine mesh traveling screens and wedge-wire screened intakes are not proven or demonstrated technologies, and that lake-wide impacts be evaluated and that studies of fine mesh screening technologies be undertaken.
Our consultants at the University of Michigan are in the proces s of evaluating the ecological significance of impingement and entrainment at the Cook Nuclear Plant.
They are giving special consideration to the April and May 1980 impingement event.
As I have indicated to you on the phone, they presently hypothesize several conditions existed which caused this unusual event.
These conditions are that onshore migrating adult alewives were concentrated shoreward of'the thermal bar which was located at approximately the 30 foot depth contour during mid to late April and there appears to be a rather dramatic increase in alewife population density over the previous
- years, an increase which as yet is unsubstantiated.
Also, dead alewives have washed up onto beaches on the*northei n basin of'Lake Michigan this year, an event that has not occured in approximately 8 to 10 years.
Other power plants have experienced unusual large alewife impingement rates during 1980.
Their evaluation will be completed with the wrap up of the environmental impact studies required by the Environmental Technical Specification that are shortly coming to a close.
The final reports are expected within the next one to two years.
If there a're any other questions you have or data which you need to complete your assignment, I will be glad.to assist you.
My phone number is 452-5721 ext.
6363'.
Sincerely,
)
~
AEG/cb Enclosures Alan E. Gaulke Aquatic Biologist Environmental Engineering Division