ML20077J689

Clarifies Re Schedule for Implementation of NUREG-0737,Item II.F.1(1), Noble Gas Effluent Monitor & II.F.1(2), Sampling & Analysis of Plant Effluents. Third high-range Monitor Installed.Implementation Completed

ML20077J689
Person / Time
Site:	Hatch
Issue date:	08/15/1983
From:	Gucwa L GEORGIA POWER CO.
To:	Stolz J Office of Nuclear Reactor Regulation
References
RTR-NUREG-0737, RTR-NUREG-737, TASK-2.F.1, TASK-TM NED-83-417, TAC-47604, TAC-47605, TAC-47746, TAC-47747, NUDOCS 8308180163
Download: ML20077J689 (2)

Text

Georg:a Power Company 333 P edmont Avenue Atlanta. Georg:a 30308 Telephone 404 526 6526 Mamnq Address Post Omce Box 4545 Atlanta Georg a 30302 b

Georgia Power L T. Gucwa r e san >wn eMuc sywm Ch.ef Nuclea' Engineer Power Generation Department NED-83-417 August 15, 1983 Director of Nuclear Reactor Regulation Attention: Mr. John F. Stolz, Chief Operating Reactors Branch No. 4 Division of Licensing U. S. Nuclear Regulatory Commission Washington, D. C.

20555 NRC DOCKETS 50-321, 50-366 OPERATING LICENSES DPR-57, NPF-5 EDWIN I. HATCH NUCLEAR PLANT UNITS 1, 2 NUREG-0737 ITEM II.F.l(2), SAMPLING AND ANALYSIS OF PLANT EFFLUENTS Gentlemen:

Our letter of February 11, 1983 addressed the schedule for implementation of NUREG-0737 Items II.F.l(l), Noble Gas Effluent Monitor, and II.F.l(2),

Samplir.g and Analysis of Plant Effluents, at Plant Hatch Unit 1.

Recent discussions with Mr.

George Rivenbark have indicated the need for clarification of a portion of that letter.

In that letter it was stated that implementation of Items II.F.1(1) and II.F.l(2) involved the installation of high-range gaseous effluent monitors at the Main Stack and Reactor Building Vent Plenum.

It was further stated that each high-range monitor utilized five Geiger-Muller (GM) detectors, two for noble gas monitoring and three for the monitoring of iodine and particulate collectors. The latter statement could be construed to mean that GM detectors are used to determine particulate and iodine releases, but such is not the case.

The quantification of releases is done by sampling with separate laboratory analysis. The purpose of the GM detectors is as follows:

When the high-range monitor automatically starts, the sample flow is directed through one of three parallel filter /adsorbers.

A GM detector monitors the buildup of radioactive iodine and particulates and, when a predetermined radiation level is detected, causes the flow to be diverted to another filter /adsorber and actuates an alarm to alert plant personnel.

The first filter /adsorber can then be removed and transported to the laboratory for analysis and a " clean" one installed in its place.

All three filter /adsorbers function in a similar manner.

0 9308180163 830815 PDR ADOCK 05000321 P

pon

'd.

a GeorgiaPower b 4

Director of Nuclear Reactor Regulation Attention: Mr. John F. Stolz, Chief Operating Reactors Branch No. 4 August 15, 1983 Page Two Georgia Power Company considers this arrangement to be in compliance with the criteria of NUREG-0737 Item II.F.l(2).

We also note that a third high-range monitor has been installed at the Unit 2 Reactor Building Vent Plenum, thus completing the implementation of Items II.F.l(l) and II.F.l(2) at i

both Hatch units.

Please contact this office if there are any further questions.

Very truly yours, b

L. T. Gucwa JH/mb xc:

J. T. Beckham, Jr.

H. C. Nix, Jr.

J. P. O'Reilly (PflC-Region II)

Senior Resident Inspector i

i e

i 4

700715

., - -.., -, -.,-..-,,