ML20215H383

Forwards Rev 1 to Procedure R-0775, Facility Change Safety Analysis. Design Bases of Current Mod to Secondary Waste Water Sys Not Intended to Be Equivalent to Evaporation Ponds Described in Submittal

ML20215H383
Person / Time
Site:	Rancho Seco
Issue date:	04/15/1987
From:	Julie Ward SACRAMENTO MUNICIPAL UTILITY DISTRICT
To:	Miraglia F Office of Nuclear Reactor Regulation
Shared Package
ML20215H387	List: ML20215H383 ML20215H397
References
JEW-87-586, TAC-64735, NUDOCS 8704200297
Download: ML20215H383 (2)

Text

e asuun SACRAMENTO MUNICIPAL UTILITY DISTRICT " 6201 S Street. P.O. Box 15830, Sacramento CA 95852-1830.(916)452-3211 AN ELECTRIC SYSTEM SERVING THE HEART OF CALIFORNIA APR 151987 JEW 87-586 Director of Nuclear Reactor Regulation Attn:

Frank J. Miraglia, Jr.

Division of PWR Licensing-B U. S. Nuclear Regulatory Commission Washington, D. C.

20555

Dear Mr. Miraglia:

The attachment to this letter provides ECN 0775, Revision 1 (Secondary Waste Water Systems Modification) as committed by the District during a meeting held in Bethesda, Maryland on March 3, 1987.

This submittal supplements Special Report 84-07 which provided short-term and long-term corrective actions in response to exceeding the limits of 10CFR20.405(c) and 40CFR190 in 1984.

In Special Report 84-07, the District proposed constructing two eight-acre evaporation ponds for the disposal of regenerant waste water as a means of preventing offsite release of radioactive liquid effluents.

The Evaporation Pond Proposal was subsequently withdrawn when the District decided to release offsite within the guidelines of 10CFR50 Appendix 1.

The District wishes to emphasize that the design bases of the current modification to the Secondary Waste Water System that is described in this submittal is not intended to be equivalent to that of the evaporation ponds.

The only relationship between ECN 0775 and the Evaporation Pond Proposal is that the segregation plans for clean and potentially contaminated waste waters that were originally included in the Evaporation Pond Proposal were also used as the initial design starting point for ECN 0775.

d' fnf/

Ih (NO 8704200297 B70415 PDR ADOCK 05000312 P

PDR

(..\\ g i

,\\,

RANCHO SECO NUCLEAR GENERATING STATION D 14440 Twin Cities Road, Herald, CA 95638-9799;(209) 333-2935

F.J. Mireglia i JEW 87-586 The design bases and safety analysis for ECN 0775, Revision 1 are included for review.

If there are any questions concerning this information, please contact Mr. Ron W. Colombo at (209) 333-2935, extension 4236.

Sincere y, s

?

Joh

. Ward ueputy General Manager, Nuclear Attachments cc:

G. Kalman, NRC, Bethesda A. D'Angelo, NRC, Rancho Seco t

I

..