ML20037B301
| ML20037B301 | |
| Person / Time | |
|---|---|
| Site: | Dresden, Quad Cities  |
| Issue date: | 07/15/1977 |
| From: | Desiree Davis Office of Nuclear Reactor Regulation |
| To: | Bolger R COMMONWEALTH EDISON CO. |
| References | |
| NUDOCS 8009100984 | |
| Download: ML20037B301 (3) | |
Text
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DISTRIBUTION Dockets (50-M237/249/254/265)
NRC PDRs T50-10/237/249/254/265)
Local PDRs (2)
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DKDaviws RMDiggs Com on with Ecison Covany 0 ELD ATT:,: i" r. P.. L. idolser 01&E.(3)
Assistant Vice Pres 1 cent RBevan vast Office Box 767 P0'Connor Lnicago, Illinois 60690 RPSnaider DEsienhut Gentl emen:
TBAbernathy JTBuchanan RE: D'.ESDEi! HUCLEAi! r0WER STATIO.i UNIT UuS.1, 2 Ai1D 3 ACRS (16) 00A0 CITIES HUCLEAf! POWER STATIO:t UuIT NOS.1 AND 2 MGrotenhuis a thou.'ii you are recuired to nonitor chlorine usece and r:;. ort nM-roatine chlorine relectes, you are generally not rguirec to sur.,it the routine chlorine conitoring cata to the fa:C.
no:vever, infornation on the routinc discharge of residual chlorine would M helpful to the NRC in the preparation of Standard Environeental icchnical Specifications, as well as in generic evaluation of changer to existing Envircnnental Technical Specifications.
It rculd Le useful in assessing whether there is any environ tent.tl i.aoact related to various octbods nf chlcrine usage and in achievinn o;r ecal of minimum regulation regarding Environmental Technicel Speciticati:ns.
We could appreciate your sending the infornation listeci in tue ercicsure to tr.is letter or. a voluntary one-tire casts only.titnin the next W days. Since this is not related to a licensinc cction, four copies of the information will suffice.
If the infernacion is already availaole in report form crepared fnr so.me other purpose, copies of such a report will be satisfactory.
This ret:uast for generic infor. nation was approvr.d by GW under a clanhet clearance nu~ber D-li,0225 (Roo72); this clearance emires A:ly 31.1977.
Sincerely, Criginal v.bncd by
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Don i'. Davis, Acting Chief Operating Reactort aranch G2 Division of Operatinn or, inc ; mer.::
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l Commonweal th Edison Company JUL 151977 cc w/ enclosure:
Mr. Charles Whitmore President and Chairman Iowa-Illinois Gas and Electric Company l
206 East Second Avenue Davenport, Iowa 52801 Mr. John W. Rowe Isham, Lincoln & Beale Counselors at Law One First National Plaza, 42nd Floor Chicago, Illinois 60603 Anthony Z. Roisman, Esquire Roisman, Kessler and Cashdan 1025 15th Street, N. W., 5th Floor Washington, D. C.
20005 Moline Public Library 504 - 17th Street Moline, Illinois 61265 Morris Public Library 604 Liberty Street Morris, Illinois 60451 i
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CHLORINE MONITORING DATA DRESDEN NUCLEAR POWER STATION UNIT.NOS. 1, 2 AND 3 QUAD CITIES NUCLEAR POWER STATION UNIT NOS. 1 AND 2 DOCKET N05. 50-10. 50-237. 50-249, 50-254 AND 50-265 1.
Frequency and duration of chlorinatfon for each system treated (i.e., main condensers, auxiliary service water, etc.). Also indicate frequency of monitoring, and location and timing of sample collection in relation to initiation of chlorination.
2.
Type of ar.alysis used (i.e., amperometric, colorimetric, continuous monitoring, etc.) by referencing ASTM on standard methods where applicable. Where more than one type of analyses has been used, indicate effective dates of each method.
3.
Sensitivity and precision of each analysis procedure.
1 4.
Comments, where applicable:
a.
Date chlorination program initiated.
i b.
Additional methods used for maintaining condenser cleanliness, l
such as mechanical methods, heat treatment and backwashing..
Include approxinate frequencies of each method.
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Problems with chlorination a' nd _ monitor 1ng programs, including c.
. equi'pment failures, sensitivity' problems, and feed rate guidelines.
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d.
Other comments.
5.
For the period 1/1/76 through 12/31/76, list all residual ch.1orine discharge concentrations recorded, species of residual chlorine (i.e., free, combined, or total-residual) measured, date-and time of sample and time of chlorination.
In those unusual cases where dilution factors are required to calculate the concentration at the station discharge, report the calculated values, indicating, this method has been used.
6.
If chlorine usage has not been initiated or has been curtailed
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during this report perico (1/1/76 through 12/31/75), report data for the time period of use in 1976 or state that no chlorine has been used at the facility (as appropriate).
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