ML20080H033
| ML20080H033 | |
| Person / Time | |
|---|---|
| Site: | Clinton  |
| Issue date: | 02/09/1995 |
| From: | Phares R ILLINOIS POWER CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| L30-95(02-09)LP, L30-95(2-9)LP, U-602412, NUDOCS 9502140368 | |
| Download: ML20080H033 (2) | |
Text
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- 4 ilhnces Power Company r
Chnson Power Staten P.o. Box 678 I
Chnton. IL 61727 Tel 217 935-8881 U-602412 PMR WO-95( 02-09 )LP i
IA.120 February 9, 1995 Docket No. 50-461 Document Control Desk Nuclear Regidatory Commission Washington, D.C. 20555
Subject:
Illinois Power Evaluation of Potential Transportation Accidents
Dear Sir:
i Illinois Power (IP) is providing this information in accordance with the Clinton
.l Power Station (CPS) Updated Safety Analysis Report (USAR), Section 2.2.3 which contains the commitment that every three years IP will assess the shipments of hazardous -
materials transportation on the Glman Line of the Illinois Central Railroad, located 0.75 miles nonh of CPS.
I This letter updates the risks of flammable and toxic hazards associated with railroad transponation past CPS. At IP's request, the Illinois Central Railroad completed a survey of railroad traffic on the Glman Line by reviewing their shipping records for the calendar year 1994. Hazardous materials are identified on the shipping record by a i
49-series Standard Transportation Commodity Code (STCC) number. This code series i
includes flammable and toxic materials.
The Illinois Central Railroad survey indicated that the only hazardous materials I
shipped past CPS during 1994 were 88 carloads of phosphoric acid, STCC number 4930247. There were no shipments of flammable material on the Giman Line in 1994.
The total number of hazardous material shipments on the Glman Line decreased slightly since the 1991 hazardous material survey was performed.
l As part of the evaluation of phosphoric acid, a review of Regulatory Guide 1.78, i
j:
Revision 0, " Assumptions for Evaluating the Habitability of a Nuclear Power Plant Control Room During a Postulated Hazardous Chemical Release," indicated that liquids with a vapor pressure ofless than 10 torr may be eliminated from further consideration as a risk to plant operation. Based on information provided by the consignee of the l
phosphoric acid, it was determined that the 88 cars contained undiluted phosphoric acid consisting of 70% phosphorus pentoxide. This material is used to manufacture fertiftzer.
The vapor pressure of a 100% concentration of phosphoric acid is less than 10 torr at 100 1
degrees Fahrenheit. Additional evaluation of the risk to plant safety from phosphoric acid therefore is not required.
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9502140368 960?o9 PDR ADDCK 05000461 O
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U-602412 Page 2 The results of this assessment demonstrate that the risks associated with railroad transportation hazards remain acceptably low.
Ifyou have any questions or require additional information, please contact me.
i Sincerely yours, il,b.O Richard F.<
ar'es Director, Licensing JSP/csm i
cc:
NRC Clinton Licensing Project Manager NRC Resident Office, V-690 Regional Administrator, Region III, UShTC Illinois Department of Nuclear Safety b
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