ML18088A947

Proposed Revisions to Environmental Technical Specifications

ML18088A947
Person / Time
Site:	Millstone
Issue date:	04/19/1976
From:	Switzer D Northeast Nuclear Energy Co (NNECO)
To:	Lear G Office of Nuclear Reactor Regulation
References
Download: ML18088A947 (11)

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. BOX 270 TFORO, CONNECTICUT 06101 NORTHEAST NUCLEAR ENERGY COMPANY 66-6911 A NORTHEAST UTILITIES COMPANY gP Q,2~

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'4 y Oly Director of Nuclear Reactor Regulation Docket'No. 5 .2 0 Attn: Mr. G. Lear, Chief Operating Reactors 'Branch II3 Qo~

U. S. Nuclear Regulatory Commission Washington, D. C. 20555 II AQUAjP6.@@

Dear Sir:

'4 a,", Pg, Millstone Nuclear Power Station, Units No. 1 and 2 Pro osed Revisions to Environmental Technical S ecificatio Pursuant to Section 5.6.3 of the Millstone Unit No. 1 (License No. DPR-21) and Unit No., 2 (License No. DPR-65) Environmental Technical Specifications (ETS),

Northeast Nuclear Energy Company hereby proposes to incorporate the following proposed changes to the ETS.

Specifically, NNECo proposes to delete sections 4.3, Lobster Habitat Sampling; and 4.5, Intake Velocity Profile Me'asurements, as these programs have been completed and their respective reports have been submitted.

In addition, NNECo proposes to modify sections 3.1.2.1.5, Benthic Survey; and 3.1.2.1.7, Trawling; as indicated on the attached sheets. These proposals concern improvements in sampling frequencies and locations based upon analyses of existing data.

Finally, NNECo proposes to delete section 3.1.2.1.8, Ichthyoplankton and Zooplankton Survey; as this program was to terminate after December, 1975.

The Millstone Environmental Review Board has reviewed and approved these proposed revisions.

Your favorable action on thi's request will be appreciated.

Very truly yours, NORTHEAST NUCLEAR ENERGY COMPANY pc R9~

President Attachments

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STATE OF CONNECTICUT )

) ss. Berlin April 19, 1976 COUNTY OF HARTFORD )

Then personally appeared before me D. C. Switzer, who being duly sworn, did state that he is President of Northeast Nuclear Energy Company, a licensee herein, that he is authorized to execute and file the foregoing information in the name and on behalf of the licensees herein and that the statements contained in said information are true and correct to the best of his knowledge and belief.

Notary Public My cammission Expires Qjg...;,j' l~j/a.

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PROPOSED CHANGES 3.1.2.1.5 Benthic Sur've Pa e 3.1-9 Benthic survey intertidal sand sample replicates to be decreased from ten (10) to five (5).

Analysis of existing data show that comparable data are obtained with only 5 subsamples in the intertidal zone. Similar numbers of species are obtained with 5 subsamples as are obtained with 10.

3.1.2.1.7 Trawlin a e 3.1-12 Trawl stations 1, 4 and 10 to be relocated to stations 2, 5, and 14 respectively as shown in ETS Figure 3.1-2. Stations 7 and 9 are to be deleted while an additional trawl will be taken at station 11.

Trawls taken over the last year of stations 2, 5, and 14 show that these stations are more easily sampled (because of bottom configurations) and therefore provide more consistent and uniform catches. Stations 7 and 9 have also been difficult to sample due to uneven bottom contours and obstructions, thereby providin'g little comparable data.

3.1.2.1.8 Ichth o lankton Surve a e 3.1-13 Delete this section. As shown on page 3.1-14, the ichthyoplankton program was to terminate after December, 1975.

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~Ob ective The obgective is to examine in detail the populations of benthic organisms in order to describe any plant effects.

S ecification During the months of March, June, September and December benthic samples shall be taken at the stations shown in Figure 3.1-1. For the subtidal rocky-substrate samples, divers descend to the station mooring block and record the general appearance of the plot and the number of species of fish. Five sampling, quadrats are then established as follows: a 10-foot line marked at 2-foot intervals is attached to the center of the block; the first sample is taken 2 feet from the block; the line is then swung 72 degrees (1/5 of 360 degrees) clockwise and a second sample is taken 4 feet from the block; the process is repeated so that the five samples taken 2, 4, 6, 8, and 10 feet from the block are 72 degrees apart.

Each of the five quadrats, delineated by a frame with inside measurements of 25 by 25 centimeters, is scraped clean with a knife or diving tool. As the sample is scraped it is sucked through a tube, and delivered to a bag of fine mesh net material at the upper end of the tube. Air is provided by a standard SCUBA tank. When a quadrat has been scraped clean, the bag is removed and corked and a new bag is fitted into place for the next quadrat.

The same methods are used for the intertidal rock substrate samples with the, exception of SCUBA.

Upon return to the laboratory, all samples taken on rocky substrates are frozen until processed. Processing includes sorting, identifying, counting where possible, drying and weighing to the nearest tenth of a gram. Due to the time involved in processing, the invertebrates, once sorted from the algae, are preserved in 70 percent ethanol. The algae are placed in sea-water and refrigerated until identified and readied for drying. Identifications are made to the lowest taxon possible.'n subtidal sand stations ten core samples each 10 cm in diameter and 5 cm deep are taken within a 10-foot diameter quadrat established by the same methods described above for rocky substrates. Five samples are taken on intertidal sand stations.

V All sand samples, upon return to the laboratory, are frozen until ready for processing. Samples are sieved through a 1-millimeter-mesh screen and the organisms retained on the screen are then placed in 70 percent ethanol.

Processing includes identification to the lowest practical taxon, counting, and recording the size range to the nearest millimeter for each species.

Re ortin Re uirement A non-routine report shall be submitted to NRC in accordance with Section 5.6.2.a.(2) when gross changes in population species composition or abundance 3.1-9

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~Ob ective The objectives of this study are to provide information on the occurrence and distribution of the larger ground fish in the area; to give data on food preferences, reproductive activity, and condition factors; and to provide recaptures for the fish tagging study.

S ecification A 30-foot otter trawl with 1/4-inch cod-end liner shall be used to trawl six locations'round Millstone Point every other week. (Stations 2, 5, 6, 8, 11, 14 Fig. 3.1-2). All fish and invertebrates collected shall be identified and measured in the field. Efforts will be made to release uninjured individuals alive.

Re ortin Re uirement Reports shall be issued on a routine basis as described in Section 5.6.1.

Marked or gross changes, beyond seasonal variations, in species abundance, composition or feeding habits, will be cause for the submittal of a non-routine report in accordance with Section 5.6.2.a.(2). Disappearance of a previously common or abundant species (e.g., flounder) shall also be the cause for submitting a non-routine report.

Bases The basis for this program element is that data on changes in overall species compositions and abundances in the area are necessary for continuous mon-itoring of the plant's operation and surveillance of its effects, if any, on the regional biota.

301-12

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