ML19305C102
| ML19305C102 | |
| Person / Time | |
|---|---|
| Site: | Fort Saint Vrain  |
| Issue date: | 02/08/1980 |
| From: | Seyfrit K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Millen C PUBLIC SERVICE CO. OF COLORADO |
| References | |
| NUDOCS 8003250602 | |
| Download: ML19305C102 (1) | |
Text
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%, * % ' y ARLINGTON, TEXAS 76012 States February 8, 1980 Docket No. 50-267 Public Ser rice Company of Colorado ATIN:
Mr. C. K. Millen Senior Vice President
?. O. Box 840 Denver, Colorado 80201 Gentlemen:
The enclosed IE Information Notice is forwarded to you for information.
No written response to this Information Notice is required.
If you have any questions related to the subject, plasse contact this office.
Sincerely, _
u p.
' ' lv K. (, Sayfric Director
Enclosures:
1.
IE Information Notice No. 80-05
(
2.
List of Recently Issued II Information Notices cc:
D. W. Warembourg, Nuclear Production Manager Fort St. Vrain Nuclear Station i
l P. O. Box 368 l
Platteville, Colorado 80651 i
l L. Bray, Manager, Quality Assurance 800325060%
r-4 SSINS No.:
6870 Accession No.:
UNITED STATES 7912190673 NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, D.C.
20555 IE Information Notice No. 80-05 Date: February 8,1980 Page 1 of I CHLORIDE CONTAMINATION OF SAFETY RELATED PIPING AND COMPONENTS A Bechtel Power Corporation Study at the Wolf Creek Project has revealed that a fire retardent coating is potentially corrosive in contact with stainless steel.
Albi "Duraspray" is a fire retardent coating which contains magnesium oxychloride, and is used for fireproofing of exposed structural steel in some Nuclear Power Plants. There appears to be no deleterious effect when it is applied over unprimed, inorganic zinc coated, or galvanized steel, however, it may be corrosive in contact with stainless steel, bare aluminum or copper.
Droppings or overspray of this material cannot be properly removed with water. Diluted Nitric acid has been proven to be a useful cleanser, however, it presents a safety hazard.
Applicants and holders of construction permits and licensees of operating power reactors are advised to protect all stainless steel, copper and aluminum material from overspray and droppage of cementitious oxychloride materials and to remove accidently applied materials immediately and completely employing strict safety precautions during the process.
Special attention should be given to weld areas in any removal procedures.
No written response to this information notice is required.
If you require additional information regarding this matter contact the Director of the appropriate NRC Regional Office.
O' IE Information Notice No. 80-05 February 8, 1980 LISTING OF RECENTLY ISSUED IE INFORMATION NOTICES Information Subject Date Issued To Notice No.
Issued 79-34 Inadequate Design of 12/27/79 All holders of of Safety-Related Heat power reactor Exchangers Operating Liceares (0Ls) and Con-struction Permits (cps) 79-35 Control of Maintenance 12/31/79 All power reactor facilities and Essential Equipment with an Operating Licenses (OLs) and Construction Permits (cps) 79-36 Computer Code Defect 12/31/79 All holders of power reactor Stress Analysis of Piping Opt: rating Licenses (0Ls)
Elbow and Construction Permits (cps) 79-37 Cracking in Low Pressure 12/28/79 All holders of power reactor Turbine Discs Operating Licenses (OLs) and Ccastruction Permits (cps) 80-01 Fuel Handling Events 1/4/80 All holders of power reactor Operating Licenses (OLs) and Construction Permits (cps) 80-02 8X8R Water Rod Lower 1/25/80 All BWR Facilities End Plug Wear holder of power reactor Operating Licenses (OLs) or Construction Permits (cps) 80-03 Main Tarbine Electro-1/31/80 All holders of power Hydraulic Control System reactor Operating Licenses (OLs) and Construction Permits (cps) 80-04 BWR Fuel Exposure in 2/4/80 All BWR's holding a Excess of Limits power reactor Operating License (OL) or Construction Permit (CP)
Enclosure 1