ML19263C989
| ML19263C989 | |
| Person / Time | |
|---|---|
| Site: | Hatch  |
| Issue date: | 03/13/1979 |
| From: | Whitmer C GEORGIA POWER CO. |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 7903200400 | |
| Download: ML19263C989 (3) | |
Text
- Georq s Poher Ctnovy 230 Pe ectMe Y* o!
Por,t Of' ce Bos 'S15 Attarit# Gemq.a :50303 Te!eptone 404 5/2 4000 m
Georgia Power Chas. F. Whitmer Ng.n$e',7 March 13, 1979 tr. s, >,.it >, ri, r ;. < tr e w.. n
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i U. S. Nuclear Regulatory Commission Office of Nuclear Reactor Regulation ATTN: Director of Regulation Washington, D. C.
20555 NRC DOCKETS 50-322 AND 50-366 OPERATING LICENSES DPR-57 AND NPF-5 EDWIN I. HATCH NUCLEAR PLANT - UNITS 1 AND 2
. CHANGE TO ENVIRONMENTAL PROGRAM DESCRIPTION DOCUMENT Centlemen:
In accordance with paragraph 5.6.4d of the Environmental Technical Specifications, Appe.41x B of Operating Licenses DPR-57 and NPF-5, this letter is notification ti.at the sampling frequency in the Environmental Program Description Document (EPDD) for Entrainment Monitoring andThis Impingement Monitoring has been changed from weekly to monthly.
change was effective on March 1,1979.
Copies of the applicable sections of the EPDD indicating the changes are attached.
The reasoning for the change is based upon the recent decision of the Atomic Safety and Licensing Appeal Board (ASLAB) with regard to the Tennessee Valley Authority's (TVA) questioning of the authority of the e
Nuclear Regulatory Commission in imposing requirements more stringent The final decision, than those of the Environmental Protection Agency.
27,1978, (ALAB-515) was in favor of TVA. Accordingly, made December the sampling f requency of the above mentioned EPDD's has been changed to agree with our National Pollutant Discharge Elimination System (NPDES)
Permit No. CA-004120 for the Edwin I. Hatch Nuclear Plant.
There is no environmental impact associated with this change since only a change in frequency of sampling is involved.
Yours very truly, N
g
- 77,i Chas, b im s
WEB /JHM/mb Attachment xc: Ruble A Thomas George F. Trowbridge, Esquire 7903200'ico
Entrainment Monitoring Samplint 1.ocation, Frequency and Technique Diel. sampics of ichthyoplankton (fish eggs and larvac) will be collected monthly using paired stationary plankton nets in front of the cooling water intake structure. The mesh size of the plankton nets will be comp-arable to the mesh size usca during the !! nit I entrainment monitoring program.
Samples will be collected in accordance with procedures estab-lished by GPC and NPDES Permit No. CA-0004120. A flow meter will be used to measure the volume of cooling water that is filtered.
Sampling duration will be of suf ficient length so as to filter sample volumes comparabic to those filtered during the Unit I entrainment monitoring program (450-500 cubic meters).
Sample Processing After collection, cach sampic.will be preserved in formali. m.d trans-ported to the CPC Environmental Aff a-irs Center laboratory for procassing, which will be conducted in accordance with procedures established by GPC.
In the laboratory, ichthyoplankton sampics will be sorted and identified by trained biologists and technicians using standard keys and recent literature.
Data Recording and Storage o
Concentration of ichthyoplankton (number per 1000 cubic meters) in the cooling water.will be determined frca the number collected and the volume of water filtered.
Estimates of the total number of fish eggs and larvac entrained are calculated as the product of ichthyoplankton concentration and cooling vater intake capacity.
Field and laboratory data sheets are retained at the GPC Environmental Af fairs Center to verify accurate data collection and analysis.
A summary and discussion of campling results will be included in the Annual Environmental Surveillance Report.
,e e
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Impingment Monitoring Sampic Collection, Frequency and Technique Impingement of fish will be taonitored by collecting n.onthly scmpics at the HNP intake structure in accordance with procedures established by CPC and NPDES Permit No. CA-0004120.
On.cc cach month, all debris accumulated on the intake screens during a 24-hour period will be collected by plant personnel and preserved in formalin solution. Mesh size of collection devices will approximate that of the traveling screens. The gauge height will be taken from a gauge on the intake structure. Water temperature will be taken and reemded at the time of sample collections.
Sample Processing After collection, the preserved sampic will be transported to the CPC Environ-mental Affairs Center.
There, a qualified fisheries biologist will identir.y (to species if possible), weir'h, and measure the collected fish using standard references and latest literature.
All fish from a 0.5 cubic meter random sub-sample, or from the entire sample if less than 0.5 cubic meter, will be analyzed.
Data Recording and Storage The total number and weight of the fish collected in the sampic (or sub-sample) will be recorded for each month.
If sub-sampling is conducted, an estimate of the total collected will also be recorded.
Field and laboratory dar, -heets and computer output will be retained to verify accurate data coli ction and analysis.
A sur.sary and discussion of sampling results will be incit.ded in the Annual Environmental Surveillance Report.
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