DCL-11-123, Security-Related Information to Support Process Protection System Replacement License Amendment Request 11-07

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Security-Related Information to Support Process Protection System Replacement License Amendment Request 11-07
ML113610541
Person / Time
Site: Diablo Canyon  Pacific Gas & Electric icon.png
Issue date: 12/20/2011
From: Becker J
Pacific Gas & Electric Co
To:
Document Control Desk, Office of Nuclear Reactor Regulation
Shared Package
ML113610535 List:
References
DCL-11-123, TAC ME2435
Download: ML113610541 (2)
v • d • e


Text

The Enclosure Contains Security-Related Information - Withhold Under 10 CFR 2.390 Pacific Gas and Electric Company James R. Becker Diablo Canyon Power Plant Site Vice President Mail Code 104/6 P. O. Box 56 December 20, 2011 Avila Beach, CA 93424 805" 545. 3462 Internal: 691.3462 PG&E Letter DCL-11-123 Fax: 805.545.6445 U.S. Nuclear Regulatory Commission 10 CFR 50.90 ATTN: Document Control Desk Washington, DC 20555 Docket No. 50-275, OL-DPR-80 Docket No. 50-323, OL-DPR-82 Diablo Canyon Units 1 and 2 Security-Related Information to Support Process Protection System Replacement License Amendment Request 11-07

References:

1. PG&E Letter DCL-11-104, "License Amendment Request 11-07, Process Protection System Replacement," dated October 26,2011 (ADAMS Accession No. ML11307A331)
2. Letter Number NRC-V1 0-11"-001, B. Haynes (lnvensys) to NRC, "Nuclear Safety-Related Qualification of the Tricon TMR Programmable Logic Controller (PLC) - Update to Qualification Summary Report Submittal and "Application for Withholding Proprietary Information from Public Disclosure (TAC No. ME2435),"

dated January 5,2011 (ADAMS Accession Number L 110140437)

3. Letter Number 6002-00301, D. Dunsavage (CS Innovations) to NRC, "CS Innovations ALS Topical Report and Supporting Documents Submittal Follow Up of Non-proprietary Document Versions" dated August 13, 2010 (ADAMS Accession Number ML102570791)

Dear Commissioners and Staff:

In Reference 1, Pacific Gas and Electric Company (PG&E) submitted a License Amendment Request to request approval to permanently replace the Diablo Canyon Power Plant Eagle 21 digital process protection system (PPS) with a new digital PPS that is based on the Invensys Operations Management Tricon Programmable Logic Controller, Version 10 (Reference 2), and the CS Innovations, LLC (a Westinghouse Electric Company), Advanced Logic System (Reference 3). In Reference 1, PG&E made regulatory commitments to provide security-related information in a separate The Enclosure Contains Security-Related Information - Withhold Under 10 CFR 2.390 Document transmitted herewith contains sensitive unclassified information .

When separated from the Enclosure, this document is decontrolled .

A member of the STARS (Strategic Teaming and Resource Sharing) Alliance Callaway

  • Comanche Peak
  • Diablo Canyon
  • Palo Verde
  • San Onofre
  • Wolf Creek

The Enclosure Contains Security-Related Information - Withhold Under 10 CFR 2.390 Docu ment Control Desk PG&E Letter DCL-11-123 December 20,2011 Page 2 letter, including a description of the security controls to be included in the proposed PPS replacement, the PPS replacement cabinets locations, and the controls for access to the PPS replacement maintenance workstation functions . This letter meets the Reference 1 regulatory commitments to provide the security-related information associated with the PPS replacement. .

The Enclosure contains security-related information. PG&E requests the Enclosure be withheld from public disclosure as security-related information under 10 CFR 2.390.

This communication contains new regulatory commitments as defined by NEI 99-04 that were not previously made in Reference 1. The commitments are contained in of the Enclosure to this letter. This letter satisfies the regulatory commitments in Reference 1 for PG&E to provide a description of the security controls to be included in the PPS replacement.

If you have further questions or requests related to your information request, please call Mr. Tom Baldwin at 805-545-4720.

I state under penalty of perjury that the foregoing is true and correct.

Executed on December 20,2011.

Site Vice President kjse/4328 50271918 Enclosure cc: Diablo Distribution cc/enc: Gary W. Butner, Branch Chief, California Dept of Public Health Elmo E. Collins, NRC Region IV Michael S. Peck, NRC Senior Resident Inspector Alan B. Wang, NRR Project Manager The Enclosure Contains Security-Related Information - Withhold Under 10 CFR 2.390 Document transmitted herewith contains sensitive unclassified information .

When separated from the Enclosure, this document is decontrolled .

A member of the STARS (Strategic Teaming and Resource Sharing) Alliance Callaway

  • Comanche Peak
  • Diablo Canyon
  • Palo Verde
  • San Onofre
  • Wolf Creek
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