DCL-05-045, Transmittal of the 2004 Annual Non-Radiological Environmental Operating Report
| ML051260220 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 04/29/2005 |
| From: | Becker J Pacific Gas & Electric Co |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| DCL-05-045 | |
| Download: ML051260220 (7) | |
Text
Pacific Gas and Electric Company' James R. Becker Diablo Canyon Power Plant Vice President P. 0. Box 56 Diablo Canyon Operations and Avila Beach, CA 93424 Station Director 805.545.3462 Fax: 805.545.4234 April 29, 2005 PG&E Letter DCL-05-045 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Docket No. 50-275, OL-DPR-80 Docket No. 50-323, OL-DPR-82 Diablo Canyon Power Plant, Units 1 and 2 2004 Annual Nonradioloqical Environmental Operating Report
Dear Commissioners and Staff:
Enclosed is the 2004 Annual Nonradiological Environmental Operating Report for Diablo Canyon Power Plant, Units 1 and 2, submitted in accordance with Subsection 5.4.1 of the Environmental Protection Plan, Appendix B, of the Facility Operating Licenses DPR-80 and DPR-82.
Sincerely, James R>Becker ddm/jlk/3007/R0258808 Enclosure cc/enc:
Roger W. Briggs Bruce S. Mallett David L. Proulx Girija S. Shukla Diablo Distribution
_:6I2JS A member of the STARS (Strategic Teaming and Resource Sharing) Alliance Caltaway
- Comanche Peak
- Diablo Canyon
- Palo Verde
- South Texas Project
- Wolf Creek
!pi Document Control Desk IR&
April 29, 2005 Page 2 PG&E Letter DCL 05-045 bcc:
A. Glenn Caruso Bryan Cunningham Kathy Jones Richard F. Locke Arlene Versaw A member of the STARS (Strategic Teaming and Resource Sharing) Alliance Callaway
- Comanche Peak
- Diablo Canyon
- Palo Verde
- South Texas Project
- Wolf Creek
Enclosure PG&E Letter DCL 05-045 2004 ANNUAL NONRADIOLOGICAL ENVIRONMENTAL OPERATING REPORT DIABLO CANYON POWER PLANT, UNITS I AND 2 Pacific Gas And Electric Company April 2005
Enclosure PG&E Letter DCL 04-045
- 1. Introduction PG&E has prepared the 2004 Annual Nonradiological Environmental Operating Report in accordance with the Environmental Protection Plan (EPP), Appendix B, of Facility Operating Licenses DPR-80 and DPR-82 for Diablo Canyon Power Plant (DCPP), Units 1 and 2. The report describes implementation of the EPP per the routine reporting requirements of EPP Subsection 5.4.1. PG&E remains committed to minimizing the environmental impact of operating DCPP.
- 2. Environmental Monitoring 2.1. Aquatic Issues Aquatic issues are addressed by the effluent limitations and receiving water monitoring/reporting requirements contained in the DCPP National Pollutant Discharge Elimination System (NPDES) permit. The NPDES permit includes applicable requirements of the State Water Resources Control Board's Ocean Plan and Thermal Plan.
2.1.1.
Routine Influent and Effluent Monitoring During 2004, DCPP submitted quarterly NPDES reports containing routine influent and effluent monitoring data and permit compliance summaries to the Central Coast Regional Water Quality Control Board (CCRWQCB) during the month following the end of each quarter.
DCPP also submitted an annual NPDES report to the CCRWQCB in February 2005. The annual report contained monitoring data summaries in tabular and graphical form, and a summary of permit compliance and corrective actions for 2004. Copies of the quarterly and annual reports were submitted concurrently to the Nuclear Regulatory Commission (NRC).
2.1.2. Receiving Water Monitoring Program The NPDES Receiving Water Monitoring Program, required by the CCRWQCB, included the ecological monitoring, temperature measurements, and State Mussel Watch activities.
Environmental monitoring programs have recorded biological changes in the discharge area since plant start-up. These programs monitor intertidal and subtidal communities of invertebrates, algae, and fish in the discharge cove and at stations north and south of DCPP. During 2004, environmental monitoring continued under the revised Receiving Water Monitoring Program (RWMP). The revised RWMP continued historical monitoring tasks, including temperature monitoring, State Mussel Watch activities, and intertidal and subtidal surveys (with additional stations and increased sampling frequencies).
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Enclosure PG&E Letter DCL 04-045 The NPDES permit remains under administrative extension. In 2000, DCPP reached a tentative agreement with CCRWQCB staff, which addresses current and future impacts on receiving waters from power plant effluent discharge. This agreement, and the revised NPDES permit renewal application, did not receive the expected approvals from the CCRWQCB in July 2003, and discussions are continuing with CCRWQCB staff and their consultants. Based on the tentative agreement, future receiving water monitoring requirements will be significantly reduced or eliminated upon approval of the revised NPDES permit. Effluent monitoring will continue under the revised NPDES Permit.
DCPP submitted the uReceiving Water Monitoring Program - 2003 Annual Report" (PG&E No. DCL-2004-539) to the CCRWQCB and the NRC on April 30, 2004.
2.1.3. Thermal Effects Study DCPP submitted the final thermal effects comprehensive assessment report to the CCRWQCB and the NRC in 1998.
2.1.4. 316(b) Studies DCPP submitted the final 316(b) report, entitled "316(b) Demonstration Report" (PG&E No. DCL-2000-514) to the CCRWQCB and the NRC on March 1, 2000.
2.2. Terrestrial Issues 2.2.1. Herbicide Application and Erosion Control PG&E continues to implement erosion control activities at the plant site and in the transmission line corridors as part of an overall land management program. These erosion control activities consist of routine maintenance and prevention efforts performed periodically on an as-needed basis, including seasonal storm damage repair and wildfire damage repair.
Herbicides are used as one component of an overall land management program that includes transmission line corridors and rights-of-way. The company continues to use only EPA and/or state-approved herbicides and applies them in accordance with all applicable regulations.
2.
Enclosure PG&E Letter DCL 04-045 2.2.2. Preservation of Archaeological Resources A. CA-SLO-2 Site Management All work performed within the boundaries of CA-SLO-2 is tracked and approved per plant procedure EVI.1D2.
In October 2004, the PG&E archaeologist reviewed the 23 CA-SLO-2 photo-monitoring stations. The photo monitoring was conducted in accordance with the Building and Land Service Department's "Cultural Resources Management Procedures for Archaeological Site CA-SLO-2," which implements policies of the Archaeological Resource Management Plan. No new areas of erosion or impacts to CA-SLO-2 were noted.
The DCPP staff contacted the PG&E archaeologist regarding the replacement of security barriers through CA-SLO-2. The original security barriers were placed along the existing roads within the CA-SLO-2 site boundaries in 2003. The new larger barriers were placed in the same location as the old barriers. A tailboard concerning the sensitivity of CA-SLO-2 and the importance of staying on the existing road preceded the startup of work. The work was monitored on several occasions by the PG&E archaeologist.
No impacts to CA-SLO-2 occurred during this project.
B. Chumash Indian Correspondence There was no communication between PG&E and the Northern Chumash Indians during 2004 concerning CA-SLO-2.
- 3. Unusual or Important Environmental Events No unusual or important events that would indicate, or could result in, a significant environmental impact causally related to station operations occurred in 2004.
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Enclosure PG&E Letter DCL 04-045
- 4. Plant Reporting Requirements 4.1. EPP Noncompliance There were no EPP noncompliances during 2004.
4.2. Changes In Station Design There were no changes in plant design or operation, tests, or experiments that involved an unreviewed environmental question or a change to the EPP.
4.3. Nonroutine Reports There were no nonroutine events during 2004 per the EPP and, therefore, no nonroutine reports were submitted to the NRC.
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