ML20211B334

NPDES Noncompliance Notification:On 870202,total Residual Chlorine Titration Exceeded Daily Max of 0.22 Ppm.Cause Unknown.Possible Causes Listed.Corrective Actions:Injection Stopped When Limit Reached & Valve Lineup Verified

ML20211B334
Person / Time
Site:	Quad Cities
Issue date:	02/06/1987
From:	Robey R COMMONWEALTH EDISON CO.
To:	ENVIRONMENTAL PROTECTION AGENCY, ILLINOIS, STATE OF
References
RAR-87-8, NUDOCS 8702190385
Download: ML20211B334 (2)

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Ddf ouad Cities Nuclear Power Station O Commonwealth Edison 2271G 206 Avenue North Cordova. Illinois 61242 Telephone 309/654-2241 February 6, 1987 RAR-87-8 FRicarry Evr

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Illinois Environmental Protection Agency Division of Water Pollution Control Compi1ance Management Unit ph, p g$Ch d_gg'---

d 2200 Churchill Road E i PP Springfield, Illinois 62706 FILE A ~

U.S. Environmental Protection Agency Region V, Enforcement Division Attention: Chief, Compliance Unit 230 South Dearborn Street Chicago, Illinois 60604

Subject:

NPDES Non-Compilances for Quad-Cities Generating Station IL-0005037

Dear Sirs:

In accordance with Standard Condition 12 we wish to submit the following notice of non-compliances:

DISCHARGE: 006 and 007 Open Cycle Diffusers PARAMETER AND PERMIT LIMIT: Total Residual Chlorine Daily Max 0.2 ppm NON-COMPLIANCE AND DATE: Total Residual Chlorine Titratin Exceeded Daily Max 0.22 ppm or Tebruary 2, 1987 CAUSE: Root cause is unknowr..

Possible causes:

1) The non-compilance occurred when injecting chemicals into Unit Two cooling water. The station is currently investigating possible problems with Unit Two cooling water system. No TRO was detected while injecting into Unit One.

2) The injection rate was 2 gpm Sodium Bromide and 3 GPM Sodium Hypochlorite instead of I gpm and 3 gpm respectively. / 7

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O G702190383 070206 PDR ADOCK 05000254 0210R/0314Z G enn FEB 121987

_ w Page 2 CORRECTIVE ACTION:

1) Injection of the chemicals was stopped when the limit was exceeded.

2) The valve lineup was checked and found to be correct. (The valve lineup is also checked prior to injecting chemicals.)

3) The analyses were reviewed. The Quality Control samples analyzed prior to checking the discharge samples were:

Sample Type Concentration Result Check 0.2 ppm 0.19 ppm Check 0.3 ppm 0.28 ppm Unknown 1.16 ppm 1.22 ppm

4) The next three days the following injection rates were used for Unit Two cooling water and no TRO was detected on Tuesday and Wednesday.

Thursday a maximum of 0.11 ppm was detected.

Tuesday 0.5 gpm NaBr 1.5 gpm Hypo Wednesday 0.8 gpm NaBr 2.4 gpm Hypo Thursday I gpm NaBr 3 gpm Hypo

5) The injection rates used in the future will be 0.8 gpm NaBr and 2.4 1

gpm Hypo until the problem with Unit Two cooling water system is resolved.

If there are any questions, please call Ray Moore of my staff at 309-654-2241, Extension 2731.

Sincerely.

.L 2]

Richard A. Robey t

Services Superintendent Quad-Clties cc: B. Davis 0210R/0314Z

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