ML20155E268: Difference between revisions

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{{#Wiki_filter:s. , e Wisconsin Electnc POWER COMPANY 231 W Meh.ocn PO. Box 2046. NWoukee wi 53201                                          (.1W) 2212345 June 3, 1988                                                      VPNPD-88-316 Wisconsin Department of Natural Resources WPDES Permit Section P. O. Box 7921 Madison, WI 53707 Gentlemen:
WPDES PERMIT N0. WI-D000957-3 POINT BEACH NUCLEAR PLANT On May 25, 1988, the company notified the Department that the daily maximum total residual chlorine (TRC) limitation was exceeded at the Point Beach Nuclear Plant. The TRC concentration in the Unit I discharge (sample point 001) was 0.37 mg/l on May 25, 1988. The following summarizes the results of our investigation.                                                                            -
The exceedance was due to the failure of the temporary dechlorinating system to provide an adequate volume of sodium bisulfite to dechlorinate the Unit I discharge. The sodium bisulfite is drawn by vacuum suction from the sodium bisulfite tank to Unit              1.      A temporary blockage in the sodium bisulfite discharge line allowed chlorinated water to be discharged without dechlorina-tion. This discharge occurred for approximately 24 minutes. Although the company had orderad a flowmeter for that line, it was on backorder and had not been received at the time of the incident. A temporary flow indicator has been installed in the sodium bisulfite line and the permanent flowmeter, which is still on backorder, will be installed as soon as it arrives.                    In the future, operating personnel will check the flow sensor to verify that the sodium bisulfite feed system is cperating prior to beginning the chlorination.
Very truly yours, e
: d. Y f            /
C.  . Fay Vi e President Nuclear Power RGR/dmp cc: DNR-Lake Michigan District U.S. Nuclear Regulatory Commission, Wash., DC U,S. Nuclear Regulatory Commission, Region III 8806160044 880603 PDR      ADOCK 05000266 s                          ncn                                                                    I A sultsfary of MIMWuill Ok*ty CWJWatiVI}}

Latest revision as of 17:46, 17 December 2020

NPDES Noncompliance Notification:On 880525,daily Max Total Residual Chlorine Limitation Exceeded.Caused by Failure of Temporary Dechlorinating Sys to Provide Adequate Vol of Sodium Bisulfate.Permanent Flowmeter Will Be Installed
ML20155E268
Person / Time
Site: Point Beach  NextEra Energy icon.png
Issue date: 06/03/1988
From: Fay C
WISCONSIN ELECTRIC POWER CO.
To:
WISCONSIN, STATE OF
References
VPNPD-88-316, NUDOCS 8806160044
Download: ML20155E268 (1)
v • d • e


Text

s. , e Wisconsin Electnc POWER COMPANY 231 W Meh.ocn PO. Box 2046. NWoukee wi 53201 (.1W) 2212345 June 3, 1988 VPNPD-88-316 Wisconsin Department of Natural Resources WPDES Permit Section P. O. Box 7921 Madison, WI 53707 Gentlemen:

WPDES PERMIT N0. WI-D000957-3 POINT BEACH NUCLEAR PLANT On May 25, 1988, the company notified the Department that the daily maximum total residual chlorine (TRC) limitation was exceeded at the Point Beach Nuclear Plant. The TRC concentration in the Unit I discharge (sample point 001) was 0.37 mg/l on May 25, 1988. The following summarizes the results of our investigation. -

The exceedance was due to the failure of the temporary dechlorinating system to provide an adequate volume of sodium bisulfite to dechlorinate the Unit I discharge. The sodium bisulfite is drawn by vacuum suction from the sodium bisulfite tank to Unit 1. A temporary blockage in the sodium bisulfite discharge line allowed chlorinated water to be discharged without dechlorina-tion. This discharge occurred for approximately 24 minutes. Although the company had orderad a flowmeter for that line, it was on backorder and had not been received at the time of the incident. A temporary flow indicator has been installed in the sodium bisulfite line and the permanent flowmeter, which is still on backorder, will be installed as soon as it arrives. In the future, operating personnel will check the flow sensor to verify that the sodium bisulfite feed system is cperating prior to beginning the chlorination.

Very truly yours, e

d. Y f /

C. . Fay Vi e President Nuclear Power RGR/dmp cc: DNR-Lake Michigan District U.S. Nuclear Regulatory Commission, Wash., DC U,S. Nuclear Regulatory Commission, Region III 8806160044 880603 PDR ADOCK 05000266 s ncn I A sultsfary of MIMWuill Ok*ty CWJWatiVI

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