ML20086G104

Environ RO 76-36:on 760915,pH for Sewage Plant Effluent Exceeded ETS Limit.Caused by Cleaning Solution Containing 30% Hydrochloric Acid Flushed Into Sewage Plant.Sewage Plant Neutralized & Instructions Issued

ML20086G104
Person / Time
Site:	Peach Bottom
Issue date:	09/24/1976
From:	Cooney M PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	Stello V Office of Nuclear Reactor Regulation
References
RO-76-36, NUDOCS 8401100055
Download: ML20086G104 (2)

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• PHILADELPHIA ELECTRIC COMPANY 2301 MARKET STREET PHILADELPHIA. PA.19101 12151 e41-4000 September 24, 1976 sh v

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r Sy - p vg Mr.' Victor Stello, Jr.

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h (,r { 'g Director 1-Division ot Operating Reactors O SEP301976' il Office of Nuclear Reactor Regulations u.s. m n us uca ue n -

U.S. Nuclear Regulatory Commission g CL"j'!",5" Washington, D.C. 20555

Dear Mr. Stello:

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Subject:

Environmental Deviation The following deviation was reported .to Mr. ; Walt Baunack, Office of Inspection and Enforcement, Region 1, United States ' i Nuclear Regulatory Commission on September 15, 1976

Reference:

License Number DPR-44/56

' ' Environmental Technf cal Specification: 2.2.2 L Report No.: 50 277/278-76-36 Report Date: September 24, 1976 Deviation Date: September 15, 1976 Facility: Peach Bottom Atomic Power Station Units 2 & 3, R.D. 1, Delta, Pa. 19314 Identification of Deviation:

i The pH for the sewage plant effluent exceeded the Environ-mental Technical Specification limit.

,, Conditions Prior to Deviation:

i Sewage plant operating normally. 1-I Descriptien of Deviation:

A grab sample from the sewage plant effluent measured'a pH of 5.8. Two verification samples also measured 5.8. The Technical Specification limit is that pH shall be within the range of 6.0 to 9.0 8401100055 760924 / 1 PDR ADOCK 05000277 -

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Mr. Victor Stallo, Jr.

9 o 50-277/278-76-36 September 24, 1976 Page 2

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Designation of Apparent Cause of Deviation: ,

l A commercial cleaning solution containing about 307. hydro-  !'

chloric acid was used in the wash room to remove stains. This i

cleaning solution was flushed to the sewage plant and reduced the pH of the whole system.

Analysis of Deviation:

The duration of this deviation was less than 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />. Because the sewage plant effluent is diluted by a factor of about 100,000 with circulation water flow, the effect on the circulating water and the environment was minimal.

Corrective Action:

The sewage plant was neutralized and instructions were issued not to use the cleaning solution containing the hydrochloric acid without prior approval of the plant chemist.

Failure Data:

None.

Very truly yours,

! J-l} G M. J y ooney s Supe'rintendent Generation Division - Nuclear I

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!UC: tab l cc: Mr. J. P. O'Reilly NRC, Reg. Off.1

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