05000387/LER-1983-016, Forwards LER 83-016/03L-0.Detailed Event Analysis Encl

Forwards LER 83-016/03L-0.Detailed Event Analysis Encl

ML20072B818
Person / Time
Site:	Susquehanna
Issue date:	02/24/1983
From:	Keiser H PENNSYLVANIA POWER & LIGHT CO.
To:	Haynes R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20072B823	List: 05000387/LER-1983-016, Forwards LER 83-016/03L-0.Detailed Event Analysis Encl
References
PLA-1544, NUDOCS 8303080002
Download: ML20072B818 (2)

LER-2083-016, Forwards LER 83-016/03L-0.Detailed Event Analysis Encl

Event date:
Report date:
3872083016R00 - NRC Website

text

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. 2 lPP&L Pennsylvania Power & Light Company Two North Ninth Street

• Allentown, PA 18101

• 215 / 770'5151 February 24, 1983 Mr. R.C. Haynes Director, Region I U.S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, PA 19406 SUSQUEHANNA STEAM ELECTRIC STATION LICENSEE EVENT REPORT 83-016/03L-0 ER 100450 FILE 841-23 Docket No. 50-387 PLA- 1544 ..

License No. NPF-14

Dear Mr. Haynes:

Attached please find a copy of Licensee Event Report No. 83-016/03L-0.

This event was determined to be reportable per Technical Specification 6.9.1.9.b, in that reactor coolant system conductivity exceeded the Technical Specification 3.4.4.a.3 limit of 10 umho/cm at 25'C. The limit was exceeded for less than one hour.

1

'/ 59p Mr

. . Kel Superint dent of Plant-Susquehanna LAK/cg cc: Director of Nuclear Reactor Regulation Attention: Mr. A. Schwencer, Chief Licensing Branch No. 2 Division of Licensing U.S. Nuclear Regulatory Commission Washington, DC 20555 G. Rhoads Resident Inspector U.S. Nuclear Regulatory Commission P.O. Box 52 Shickshinny, PA 18655 Attachment n gb 8303000002 830224 gDRADOCK 05000387 PDR

( .- . _ _ _

.~_ >

Attachment Licensee Event Report 83-016/03L-0 Susquehanna Unit 1 was at 85% power in a steady state condition, when Reactor conductivity started to increase rapidly. Within minutes, Technical Speci-fication limits of 10.0 umho/cm had been exceeded (table 3.4.4-1) and conduc-tivity was steadily rising. All normal plant operations were stopped (e.g.

all releases and transfer of water) and power was reduced to 83%. Within an hour, conductivity dropped back within operating limits. When normal plant operations were continued, reactor conductivity began to rapidly in-crease again. Power was reduced to 70% and plant operations were again halted. This time, however, conductivity exceeded Technical Specification limit of 10.0 umho/cm, peaking at 12.9 umho/cm. PH had also dropped to 4.7.

Within one hour, conductivity dropped below 10.0 umho/cm and continuously dropped thereafter to operating lLuits later that day. PH also returned to within its operating. limit.

An organic cleaning solution previously approved for use, apparently entered the Radioactive Waste drains and was not removed during processing through the Radwaste System. The water was then transferred to the Condensate System.

When the water was subjected to high temperatures, high conductivity and low pH was observed.

The actions taken to prevent this occurrence are:

1. Temporary improved administrative controls were established,

2. Increased sampling requirements were implemented, .

3. The procurement of a total organic carbon analyzer (TOCA) was com-pleted, and

4. Tanks with TOC greater than 1 ppm will not be sent to the CST.

Final administrative procedures are being developed. These procedures are scheduled for implementation prior to 6/1/83.

DJT/LAK/cg