ML20086F381

Environ RO 76-45:on 761217,chemical Usage for First 6 Months of 1976 Exceeded Twice Estimated Yearly Usage.Caused by High Demineralizer Water Consumption Due to High Makeup to Auxiliary Boilers & Increased Makeup to Main Units

ML20086F381
Person / Time
Site:	Peach Bottom
Issue date:	12/27/1976
From:	Cooney M PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	Stello V Office of Nuclear Reactor Regulation
References
RO-76-45, NUDOCS 8312220205
Download: ML20086F381 (2)

Text

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o PHILADELPHIA ELECTRIC COMPANY sl[e / e 2301 MARKET STREET PHILADELPHIA. PA.19101 1215)8414000 December 27, 1976 Mr. Victor Stello, Jr., Director 2 '/

Division of Operating Reactors p4 h Office of Nuclear Reactor Regulations i _

h/g U.S. Nuclear Regulatory Commission

• h, Washington, D. C. 20555 gg

Dear Mr. Stello:

S'JBJECT: ENVIRONMENTAL DEVIATION The following deviation was reported to Mr. Walt Baunack, Office of Inspection and Enforcement, Region 1, United States Nuclear Regulatory Commission on December 17, 1976.

Reference:

License Number DPR-44/56 Environmental Technical Specifications: 2.2.4 & 3.2.4 Report No.:

Report Date:

50-277/278-76-45 December 27,1976 30M4)

Deviation Date: December 17, 1976 _

Facility: Peach Bottoin Atomic Power Station Units 2 & 3 R.D. 1, Delta, Pa. 17314 Identification of Deviation: -

Excessive chemical usage.

Conditions Prior to Deviation:

Units 2 and 3 both in commercial operation in 1976.

Description of Deviation:

The following chemical usage for the first 6 months in 1976 exceeded 2 times the estimated yearly usage which is an Environmental Deviation.

8312220205 761227 00P1SEM R$0Rs PDR ADOCK 05000277 I S PDR

__ _ __ __ _ j

o a Mr. Victor Stello, Jr. 50-277/278-76-45 December 27,1W6 Page 2 Tech Spec Limit Chemical Semi-Annual Usace (2 x est. usace) prior to 7/27/76 after 7/27/76 Amendment Amendment Alum 56,500 lbs. 40,000 lbs. 160,000 lbs.

Desicnation of Apparent Cause of Deviation:

The large alum usage was due to high demineralizer water consumption mainly attributable to high makeup to the auxiliary boilers and increased makeup to the main units due to a temporary reduction in reclaimable liquid Rad-vaste. The reduction in reclaimable Rad-vaste was caused by oil contamination resulting from equipment failures.

Analysis of Deviation:

No safety implications. No adverse effects to the Conowingo Pond have been observed due to this excessive usage.

Corrective Action:

The Rad-waste equipment failures have been corrected and the amount of main unit makeup has been reduced. Modifications have been made, and further system improvements are planned to the auxiliary

. boiler condensate return system to reduce auxiliary boiler makeup and improve ease of system maintenance.

On July 27, 1976, the NRC issued Amendments to the Peach Bottom Units 2 and 3 Operating Ideenses (Amendment 20 to DPR-l.4 and Amendment 20 to DPR-56) changing Environmental Technical Specification 2.2.4 by increasing the amount of chemical usage permitted. Future Alum usage similar to that experienced during the first half of 1W6 will be well within the Technical Specification limits of the July 27, 1976 Amendment.

Failure Data:

Environmental Deviation Reports 50-277/278-76-8, 50-277/278-75-4.

Very truly yours, t

M. J. Cooney

, ixus' Superintendent

- Generation Division-Nuclear ec: J. P. O'Reilly NBC, Rega Office i

r L A. a