This report covers the activities of the Diablo Canyon Independent Safety Committee (DCISC) for the period July 1, 2010 through June 30, 2011. This is the twenty-first annual report of the DCISC. The report is presented in two volumes.
Volume Iincludes a report summary and Conclusions and Recommendations (Executive Summary), a brief introduction and history regarding the DCISC, Committee activities, and documents received by the DCISC during the reporting period (Section 1.0), DCISC public meetings (Section 2.0), a review and evaluation of Nuclear Regulatory Commission (NRC) assessments and issues (Section 3.0), Committee Member and Consultant investigation topical summaries (Section 4.0), DCPP performance indicators monitored by the DCISC (Section 5.0), open items being followed by the Committee (Section 6.0), follow-up of Pacific Gas and Electric (PG&E) actions on previous DCISC recommendations (Section 7.0), input to the Committee by members of the public (Section 8.0), and PG&E’s response (Section 9.0) to recommendations in this report. The conclusions and recommendations also appear in boldface type throughout the main body of the report with a discussion of the subject involved.
Volume II contains a list of documents received by the DCISC (Exhibit A), public meeting notices and agendas and minutes (Exhibit B), a DCPP operations summary for the reporting period and organization charts (Exhibit C), full investigation reports by Committee Members and Consultants (Exhibit D), a record of plant tours by the DCISC (Exhibit E), the DCISC Open Items List (Exhibit F), communications and correspondence with members of the public (Exhibit G), DCISC recommendations and PG&E responses for the previous period (Exhibit H), the DCISC informational brochure (Exhibit I), and a glossary of terms (Exhibit J).