ML20086G629

Forwards Pritchard-Carpenter Oct 1972 Rept on Newbold Island & Rept on Thermal Discharge,Per J Cho 840109 Request

ML20086G629
Person / Time
Site:	Hope Creek
Issue date:	01/10/1984
From:	Rader R CONNER & WETTERHAHN, Public Service Enterprise Group
To:	Gotchy R, Moore T, Rosenthal A NRC ATOMIC SAFETY & LICENSING APPEAL PANEL (ASLAP)
References
ISSUANCES-OL, NUDOCS 8401120317
Download: ML20086G629 (17)

Text

,

Law orricEs 00CKETED CONNER & WETTERHAHN. P.G. "

174 7 PENN S YLVANI A AVEN L*E. N. W.

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J1 N O M f D M . O Ld v N A RCb M OOR E.'J R *  ?* '

• HORENT H. PURL

' *1*I'.OII.. . < January 10, 1984 ' " "T CABLE aponggM: ATOMt.AW Alan S. Rosenthal, Esq. Dr. Reginald L. Gotchy Chairman Atomic Safety and Atomic Safety and Licensing Appeal Board Licensing Appeal Board U.S. Nuclear Regulatory U.S. Nuclear Regulatory Commission Commission Washington, D.C. 20555 Washington, D.C. 20555 Thomas S. Moore, Esq.

Atomic Safety and Licensing Appeal Board U.S. Nuclear Regulatory t Commission Washington, D.C. 20555 In the Matter of Public Service Electric and Gas Company (Hope Creek Generating Station)

Docket No. 50-354-OL Gentlemen:

At the request of Mr. John Cho in his telephone conver-

'sation with me on January 9, 1984, I am enclosing additional copies of (1) the October 1972 report on Newbold Island prep *ared for Public Service Electric and Gas Company by Pritchard-Carpenter, Consultants and (2) the Report on Thermal Discharge - Hope Creek Generating Station, prepared by Dr. Carpenter and incorporated in the Hope Creek Supple-mental Environmental Report as Appendix A (Amendment 7).

In order to provide the Board with the clearest possi-ble copies, the copy of the October 1972 report which I have enclosed is the original photostatic copy of the microfiche obtained from the Company's files. This copy is being hand delivered with this letter to Chairman Rosenthal. Although we attempted to copy this report for service upon the other members of the Appeal Board, the Licensing Board and parties, the photostatic copies we produced were no more 8401120317 840110 PDR ADOCK 05000354 ,g G PDR < (j )

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' Legible than the copies already furnished. We are, however, serving copies of the latter report appanded to the Hope ,

Creek Supplemental Environmental Report. t Sincerely, Yo Robert M. Rader Counsel for the Applicants Enclosure

.cc: Service List w/enclosu::e e

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d t Appendix A y Report on Thermal Discharge - Hope Creek Generating Station By Dr. James H. Carpenter i

e,

! 1.

h[= The characteristics of the Delaware estuary adjacent to the Hope j Creek and Salem sites h&ve been reviewed in previous reports and b

N the environmental impact statement. The most important character-istic is the vigorous tidal motion that produces current speeds of up to 4 feet /second in the channel and a flow of ca. 400.000 cfs averaged over a held tidal cycle.

The motions are almost entirely insensitive to the low flow rates of runoff at Trenton and varia-tions of 1500 to 3000 cfs in runoff would not be expected to produce observable variations in the velocity field at the Sales site. The i

fresh water input is important in considering the distribution of -

persistent contaminants, but the residual waste heat will be nearly completely transferred to the atmosphere (half-life during summer conditions of ca. 6 days) befcre it could be moved very far down-stream.

9 2.

f The estimated effluent temperatures above ambient water temperatures '

( have been studied by Public Service engineers and were found to vary

.d a with time during the year. The variations range from 14F in February h

<+

to 4.3F in late August.

The summer temperatures of the discharge will

e be 7.5F or less and consideration of the waste heat field from the jp t

g discharge of 134 cfs at 7.SF above ambient would be a conservative case for analysis.

I have used literatures values for the rates of y',

dilution for several possible arrangements. Consideration of the several design criteria that include minintring the cixing zone as (ofined by the DTC, recirculation, econocics and attraction of fishes i

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to the intake area lead to a recammendation that the disch q= made through a submerged pipe that has a diameter of 4.5 fe

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wai 79: that runs 200 feet offshore of the mid-tide shoreline. The proposi wg " -

layout is shown schematically in Figure 1. The particular locatioi along the shore of Artificial Island is not critical and the la could be moved several hundred feet either north 1

changing the predicted waste heat field.

The results of sqy analysis for the extreme rate of heat dis during the suneer are shown in Figure 1. If the " mixing zone" is defined as the area with toeperatures increased by more tha the proposed layout would have a summertime mixing zone wit sions of approximately 1100 ft. x 100 ft. and the zone wou'1d be :

i aligned upstream during flood tide and downstream during abb: .

3.

A similar analysis has been made for the maximum waste hea which is expected in February. Figure 2 shows the results. If the t

" mixing zone" during this season is defir.ad as the area with, tures increased by 4F or more, the mixing zone has dimensions of k 300 ft. x 50 ft.

'em .-

I 4.

The proposed arrangement would increase the temperatures that . . .

organisms in the environment experience above as6 tent with a time-temperature history as shown in Figure 3. It may be noted that the exposure is quite brief and the temperature elevations are not large

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for such brief exposure.

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S. The offshore submerged discharge would not produce direct recircula-tion. The general waming of the local waters from the waste heat i input would be approximately 0.07F during summer and 0.14 in February.

This general increase is so small that it probably will be without effect as a recirculation parameter or fish attraction consideration.

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l'

6. Since the offshore discharge makes consideration of recirculation unimportant, the service water intake should be located using other criteria, such as piping length, minimizing siltation, etc.

7. The withdrawal of 192 cfs is so small compared to the tidal flow that the streamlines of the flow as produced by the discharge from ,

Salem Units 1 and 2 will not be significantly modified. The combi-nation of the Salem Units 1 and 2 and the Hope Creek Units 1 and 2 k discharges are shown in the attached figures in the appendix. The appendix figures show the obvices fact that the Hope Creek discharge is a very small fraction of the Salam discharge. As may be seen, j l

j the new plume will be located in an area that is warned approximately )

l 2F from the Salem Units 1 and 2. In considering biological effects l of the proposed discharge for the Hope Creek Units, the buoyant f i

i pluae will not wam benthic organisms and the transients shown in Figure 3 will be experienced by organisms drifting in waters warned f

2F plus the transient shown in Figure 3.

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l SutND JET DISOMARGE N I" = 300 2 HOPE CREEK

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ISLAND 1

SHORELINE SOTHERMS OF WASTE HEAT IN THE 5 FOOT SURFACE LAYER I.5 F SUMMER CONDITIONS (JUNE OR NOVEMBER )

MAXIMUM HEAT RELEASE-134 cfs AT AT 7.5 F (0.225 X 10' BTU /HR)

! TE PATTERN SHOWN WOULD BE PRESENT FROM O.5 HOUR AFTER SLACK TO END OF EBB CURRENTS.

A SIMILAR PATTERN WOULD BE PRESENT BUT ORIENTED UPSTREAM - ,

DURING FLOOO TIDE. i .

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A HEAT RELEASE-134 cfs AT AT 7.5 F (0.42 X IO' BTU /HR) ys-re?

TERN SHOWN WOULD BE PRESENT FROM O.5 HOUR AFTER D END OF EBB CURRENTS. 7.?:

ILAR PATTERN MOJLD BE PRESENT BUT ORIENTED UPSTREAM I FLOOO TIDE. , ;_

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