ML19259C809
| ML19259C809 | |
| Person / Time | |
|---|---|
| Site: | Fermi  |
| Issue date: | 07/19/1979 |
| From: | Ballard R Office of Nuclear Reactor Regulation |
| To: | Turney W MICHIGAN, STATE OF |
| References | |
| NUDOCS 7908150211 | |
| Download: ML19259C809 (19) | |
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JUL 191979
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Docket File
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NRC PDR
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Local;PDR ard Docket No. 50-341 y
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Applica'nt/ Service list A, r. kl. G..Turney -
- :tP-1 Reading Deputy. Director 1
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r Michigan' Department of hatural_ Resources.
I&E(5) l Steven T. Mason Building
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, s P. O. Box 30029
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's Lansing, Michigan 45909
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Dear Mr. Turney
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- 26. 1979, staff members of the'U. S. Nuclear Regulatory Ccmission -
On March and-the Water Division, Michigan Department of Natural Resources (DNR) r l
met to discuss.the need for DNR to impose a specific requirement.on the Detroit-Edison. Company (applicant)~to conduct a pre-operational aquatic monitoring program at the Femi II Atomic Power Plant. As.a result of
- ~ this meeting, it was our understanding that the DNR agreed' to a limited program in-the vicinity-of Femi II intake system and that the.DNR would
-infom the applicant of this matter.
Furthermore, it was agreed that we would participate'in'the-review of such a program prior to the DNR reaching a final conclusion as to-its acceptability.
We h' ave reviewed your~1etter of May 3,1979 together with the sutnittal
. by Detroft Edison (letter to-DNR dated May 30, 1979) of an Entrainment.
and Impingement Stbdy for the Fermi II: facility.
We believe the proposed 6'
study is deficient in that it does not include any pre-operational
. testing,'and focuses only-on the start-up and' commercial operational phases. The niajar technical inadequacy is that it provides for sampling t
_.,hi only at or near the general service water pump house and is devoid of g
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far field ~ monitoring % In. addition, we do not believe the sampling program, as proposed, will allow;a detemination of. significance of entrainment and impingement losses.,.The applicant suggests that Phase II of the 6
study wtT1 incorporate the '76 '77 base-line data-(which was collected p,j to assess the-impacts of relocating the discharge structure) to interpret iG
- 4 impingement and entrainment results. We.do not believe that the '76 '77 f~J data are adequate ta reach a statistically valid conclusion with respect
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to entrainment and-impingement Tosses.
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Specific technical corrrnents-on the-proposed study are provided in Enclosure I.
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Enclosure II describes the enviionmental pre-operational-monitoring program -
recocurended by the NRC staff as adequate to provide information for base-line pre-operatier,al data as well as correlation with ocoratienal ca :a.
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f Mr. W. G. Turney '
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We trust' our corrents will be considered in your formulation of specific.
requirements for a technically comprehensive. pre-operational / operational aquatic monitoring program at the Fermi II plant. Our recorreendations, if: incorporated into the proposed study, would satisfy the flRC requirements. ~
presented in the Final Environmental Impact Statement related to the con-struction 'of the Fermi. II plant.. We 'look-foward to our continued joint efforts in resolving this-issue. -
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Sincerely,
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.Rona'id L. Ballard, Chief
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Environmental Projects Branch 1 Division of Site Safety 5
and Environmental _ Analysis
Enclosures:
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Conments on Proposed Fenni Monitoring Program
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2.- Pre-operational and Operational -
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Monitoring Program
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L57070
ENCLOSURE I REVIEW OF THE ENRICO FERMI MONITORING PROGRNi AS PROPOSED BY DETROIT EDISON FOR THE STATE OF MICHIGAN
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During the scope of our review, the following concerns in the impingement and dntrainment monitoring program have been identified:
1.
Monitoring will occur only at or near the general service water pump house.
The proposed monitoring for the intake appears satisfactory; however, issues that have been identified in our FES as discharge concerns and far field sampling for water quality and biological populations will not be monitored.
This renders the program incomplete and inadequate in trying to assess the possible operational effects of this facility on Lake Erie.
2.
The proposed program is to begin "within 90 days of the date on which operation of the blew-down from the ctreulating water res.eryotr ccreences in conjunction with the operation of the general service water pumps."
Thus the program is proposed to begin after some potentially impacting operations have begun.
Henca.it appears that this program will not be a true assessment of conditions Hefore plant operation.
3.
The staff is unfamiliar with the "Lar Vac 1" ichthyoplankton sampler.
Has the sampler proven itself to be reliable and provide reproducible results? The ichthyoplankton samples should be collected for a continuous 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> per;iod and not as indicated in the study "for an appropriate length of time."
4.
The fish impingement and entrainment sampling proposed at the water intake is an invortant element for monitoring possible environmental effects due to plant operation.
However, it is difficult to comprehend how impingement
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ENCLOSURE I and entrainment data will be interpreted and evaluated without knowledge of ambient fish populations near the facility.
The usual procedure is to monitor the receiving water body to determine fish population and productivity and to assess what percentage of that population or productivity is being affected by plant operation. The existing procram is devoid of any ambient population estimate monitoring.
The utili';/ should present their basis for the sample prograr, design indicating how data will be interpreted and how hypotheses will be tested to establish significance of impacts.
5.
Phases I and II of this study are essentially operational monitoring p rograms.
However, the Phase II study has not been defined.
- Instead, the utility indicates that the scope, schedule, and duration of Phase II will be dependent on the outcome of Phase I.
Phase II in essence appears to be a continuation of the Phase I operational monitoring program. Rbile the details of Phase II may be subject to change, it would be helpful in evaluating Phase I if the general types of decision criteria to be used in formulating Phase II could be specified at this' time.
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PRE-OPERATIONAL MONITORING PROGRAM FOR ENRICO FERMI UNIT 2 INTRODUCTION A pre-operational aquatic monitoring program will be initiated approximately 1 year prior to fuel load.
The program is sperifically designed for the closed cycle cooling system at the Fermi 2 site located on the Western Basin of Lake Erie.
This study is to permit statistical correlations to be drawn between pre-operational and operational phases so as to ascertain the degree of impact from Femi 2 operation.
SAMPLING LOCATION Figure 1 presents the configuration of the sampling locations. Transects A, B, and C are perpendicular to the Lake Erie shoreline, extending 3500 to 4000 feet into Lake Erie.
Stations 1 through 6 are located on the three transects, two per transect:
the old numbers (1,3,5) are inshore, the even numbers (2,4,5) are offshore.
Stations No. 2 and 6 will be located out of the zone of influence of the plant themal plume.
Station 7 is in the intake canal imediately in front of the Femi 2 intake. Station 7A is located downstream of the wash racks where the intake water enters the general service water pumphouse.
SAMPLING SCHEDULE The preoperational sampling at Stations 1 through 7 will consist of a 1-year program of twice/ week, weekly, b1 weekly, and monthly intervals from January through Deceinber, weather, lake conditions, and ice cover pemitting. The parameters measured during this period and sampling schedule are shown in Table 1 PARAMETERS WATER CHEMISTRY Discrete water samples will be collected at each sampling station coincident with adult Lake fish sacpling and analyzed for the following:
pH Suspended Solids Dissolved Oxygen Dissolved Solids Temperature Conductivity Transparency Total Hardness Total Alkalinity Determination of the direction of water currents will also be performed as part of the water chemistry monitoring program.
b57078
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' FISHERIES POPULATION STUDIES Every 30 days, weather and lake conditions permitting, fish populations will be sampled.
Fish will be collected with gill nets, otter trawls, and beach seines, at all stations where possible. Six-panel experimental gill nets (mesh sizes 13 to 89 mm) will be used at Stations 2, 4, 6, and 7.
Nets will be set on the bottom, perpendicular to the shoreline with the largest mesh located offshore, for 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. A 4.8 m otter trawl (1/4 inch mesh) will be towed parallel to shore for 5 minutes at Stations 1, 3, 5, and 7.
Seining will be accomplished at transects A, B, and C with a 12.1 m bag seine (3/16 inch
' mesh).
Station No. 7A (at the intake screens) should be sampled during the pre-operational and operational phases when the plant is pumping water.
If the plant is not pumping during tha.t 30 day period, sa@les should be taken in the intake canal Station No. 7.
Captured fish will be identified and measured to the nearest millimeter. 'All viable fish will be released with the exception of those which could not be readily identifled in the field or those retained for voucher collection.
Fish not positively identified in the field will be sent to the laboratory for identi fi cation.
This study will emphasize the correlation of the important species of fish (mainly forage fish) near the Enrico Fermi site.
ICHTHYOPLANKTON Ichthyoplankton samples will be taken once a week at Stations 5, 6, and 7 during the anticipated spawning season, April through September.
During the remaining months 30 day samples, weather permitting, will be collected, Table 1 Net samples will be collected using 0.5 m diameter conical plankton nete of 505 micron mesh.
Two 3-minute tows will be made at each station, where possible.
Demersel and adhesive eggs will be collected at Stations 5, 6, and 7 usin3 a 1.46 m3/ minute (385 gpml pug attached to a 0.073 m2 stationary bottom sampler.
At Station 7A between the trash racks and the pumphouse, 2 continuous 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> ichthyoplankton sample wil be collected per week during the anticipated spawnino season, April thro], ugh September, and one sample per week during the non-spawning period, Table 1.
Duplicate diurnal 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> samples will be taken, three per day and three per night, using a conical plankton net and/or a submersible pump, whichever can best be handled at the pumphouse.
The ichthyoplankton samples will be sorted and the eggs and larvae will be identified to the lowest possible taxon.
Eggs will be evaluated as to condition; larvae will be separated into various developmental stages.
6fi7079
. FISH IMPINGEMENT An impingement study will be conducted to investigate the number and species of fish that are impinged on the traveling screens, Station 7A.
Impinged fish will be collected over a continuous 24-hour period twice a week during the spawning season (April through September) and one continuous 24 sample / week during the remainder of the year (Table 1).
The species composition and total weight will be determined. One of the weekly samples each month will be used for length / weight determinations.
All viable fish will be returned to the lake.
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