ML20104B669

NPDES Noncompliance Notification:Provides Addl Info Re Discharges of Chilled & Closed Cooling Water Containing Nitrites Per 841127 Telcon.Discharge Ph Level within Limits After Mixing W/Receiving Water

ML20104B669
Person / Time
Site:	Susquehanna
Issue date:	01/23/1985
From:	Fields J PENNSYLVANIA POWER & LIGHT CO.
To:	PENNSYLVANIA, COMMONWEALTH OF
References
PLE-6628, NUDOCS 8502040173
Download: ML20104B669 (2)

Text

. .- . - . .

, [fd P nnsylvania Pow:r & Light Company Two North Ninth Street

• Allentown, PA 18101 + 215/ 7706151 4

January 23, 1985 '

Mr. Paul J. Koval Bureau of Water Quality Management .

PA Department of Enrironmental Resources j P.O.' Box 659-

, 90 East Union Street, Second Floor Wilkas-Barre, PA 18701-3296 i.

SUSQUEHANNA STEAM ELECTRIC STATION DISCHARGES OF CHILLED AND CLOSED COOLING WATER CCN 741326 FILE 012 PLE-6628' I*

Dear Mr. Koval:

i To update our telephone conversation o'f November 27, 1984 concerning the dis-charge'of demineralized chilled and closed cooling water containing nitrites from the Susquehanna SES, we vould like to provide the PA Department of Envi-l' ' ronmental Resources (PA DER) with informat. ion characterizing this discharge, the volumes'and also the frequency of discharges. At the station, sodium i

nitrite or borated nitrite are added to these systems for corrosion prevention. The nitrite forms a metallic oxygen film protecting piping and heat exchangers. The level of nitrite in the cooling water is approximately 4

1,000 ppm. Other parameters such as iron, chloride, oil and grease and isotopic analysis are all within National Pollutant Discharge Elimination System (NPDES) limits and U.S. Nuclear Regulatory Commission Radiological Technical Specifications. The pH level, however, may exceed NPDES limits but upon mixing with the receiving bodies of water, would meet the NPDES limit.

The following is a list of chilled and closed systems and their volumes: a SYSTEM NO. OF TANKS VOLUME / TANK (gal) 1 Units 1 & 2 Reactor Bldg. -

2 4,300 Closed Cooling Water

• Units 1 &'2 Turbine Bldg. Closed 2 1,150 l

. Cooling Water

• Units 1 & 2 Gaseous.Radwasta 2 3,100, Recombiner Closed )

Cooling Water l Units 1 & 2 Reactor' Bldg. 2' 4,750 Chilled Water 8502040173 850123 -

3 gDRADOCK 0500038 gf3

J:nuary 23, 1985 2 FLE- 6628

'o CCN 741326 ' Fila 012 e -

SYSTEM NO. dF TANKS VOLUME / TANK (gal)

Units 1 & 2 . Turbine Bldg. 2 . 6,400 Chilled Water Coristrol Structure . 1 650 Chilled Water Radwaste Bldg. 1- 420 Chilled Water I

A,B,C,D Diesel Generator

• 4 600 Jacket Water Borated nitrite is us'ed in this system. The other systems use sodium l nitrite, l Planned maintenance of these systems would occur annually. .

l The location of the particular system will determine where the water will be I discharged. The following is a list of possible receiving locations:

, o Cooling Tower Basin o Cooling Tower Blowdown Line*

o S-2 Pond o Storm Drains

• Through radwaste system.

As we indicated previously in letter PLE-6114, October 29, 1984, samples of the water would be sampled prior to discharge.

I lf you have any questions or comments', please contact me at (215) 770-7889. .

Respectfully yours, ', , *

?w,d _

rose S. Fields -

Sr. Environmental Scientist-Nuclear

.JSF:dak jsfit10023361 cc:%EISidiissisE). 'NBC]!

___ . _ _ _ _ _ _ _ . _ _ _ _ . _ _ _ _ . _ _ _ _ _ . _ . _ _ . _ . _ . .