DCL-08-038, Annual Nonradiological Environmental Operating Report
| ML081270205 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 04/25/2008 |
| From: | Becker J Pacific Gas & Electric Co |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| DCL-08-038 | |
| Download: ML081270205 (6) | |
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Pacific Gas and Electric Companyo April 25, 2008 James R. Becker Site Vice President and Station Director Diablo Canyon Power Plant Mail Code 104/5/502 P. 0. Box 56 Avila Beach, CA 93424 805.545.3462 Internal: 691.3462 Fax: 805.545.4234 PG&E Letter DCL-08-038 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 2007 Annual Nonradiological Environmental Operating Report
Dear Commissioners and Staff:
Enclosed is the 2007 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.
Pacific Gas and Electric Company makes no new regulatory commitments in this letter.
If you have any questions regarding this submittal, please contact James L. Kelly at (805) 545-3194.
Sincerely, James R. Becker dd m/3008/R0300343 Enclosure cc/enc:
Roaer W. Brioas. Executive Officer. CRWQCB Elmo E. Collins, Regional Administrator, NRC Region IV Michael S. Peck, NRC Senior Resident Alan B. Wang, NRC Project Manager, Office of Nuclear Reactor Regulation Diablo Distribution A member of the STARS (Strategic Teaming and Resource Sharing) Alliance Callaway
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Enclosure PG&E Letter DCL-08-038 2007 ANNUAL NONRADIOLOGICAL ENVIRONMENTAL OPERATING REPORT DIABLO CANYON POWER PLANT, UNITS I AND 2 Pacific Gas And Electric Company April 2008
Enclosure PG&E Letter DCL-08-038
- 1. Introduction Pacific Gas And Electric Company (PG&E) has prepared the 2007 Annual Nonradiological Environmental Operating Report (AEOR) 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 AEOR 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 2007, 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 2008. The annual report contained monitoring data summaries in tabular and graphical form, and a summary of permit compliance and corrective actions for 2007.
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 (RWMP),
required by the CCRWQCB, included 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 2007, environmental monitoring continued under the revised RWMP. The revised RWMP continued historical monitoring tasks, including temperature monitoring, State Mussel Watch 1
Enclosure PG&E Letter DCL-08-038 activities, and intertidal and subtidal surveys (with additional stations and increased sampling frequencies).
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 "Receiving Water Monitoring Program - 2006 Annual Report," via PG&E Letter No. DCL-2007-519, dated April 26, 2007. DCPP is submitting the "Receiving Water Monitoring - 2007 Annual Report," via PG&E Letter No.
DCL-2008-518, dated April 25, 2008, to the CCRWQCB and the NRC.
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," via PG&E Letter No. DCL-2000-514, dated March 1, 2000, to the CCRWQCB and the NRC.
2.2. Terrestrial Issues 2.2.1.
Herbicide Application and Erosion Control 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 Environmental Protection Agency and/or state-approved herbicides and applies them in accordance with all applicable regulations.
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 2
Enclosure PG&E Letter DCL-08-038 on an as-needed basis, including seasonal storm damage repair and wildfire damage repair. In addition, storm water control ditches and culverts have been installed around the Independent Spent Fuel Storage Installation east of the power plant.
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 DCPP Procedure EVI.ID2, "CA-SLO-2 Site Management."
In December 2007, PG&E's cultural resources specialist reviewed the 23 SLO-2 photo-monitoring stations. The photo monitoring was conducted in accordance with the Building and Land Service Department's (now Corporate Real Estate), "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 SLO-2 were noted.
B. Chumash Indian Correspondence In 2007, PG&E contacted the Chumash Indians regarding the North Ranch Access Project. This project is not associated with CA-SLO-2. In the course of consultation with Puilulaw Khus and Lie Lynn Odom, both inquired about the current condition of CA-SLO-2, and were informed that there has been no change in condition. There was no other communication between PG&E and the Chumash Indians, nor were any access request received from the Chumash Indians during 2007 concerning CA-SLO-2.
- 3. Unusual or Important Environmental Events There were no unusual or important environmental events during 2007.
4.2. Changes In Station Design There were no changes in plant design, operation, tests, or experiments that involved an unreviewed environmental question or a change to the EPP.
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Enclosure PG&E Letter DCL-08-038 4.3. Nonroutine Reports There were no nonroutine events during 2007 per the EPP, and therefore no nonroutine reports were submitted to the NRC.
On July 23, 2007, a Green Sea Turtle was found at the intake structure. As authorized in DCPP's incidental take statement issued September 18, 2006, plant staff removed the turtle and released it offshore unharmed. Although these turtles are protected by the Endangered Species Act, there was no significant environmental impact caused by the plant from this event. A written report, submitted by DCPP to the National Marine Fisheries Service (PG&E Letter No. DCL-2007-535, dated August 9, 2007) regarding the removal and release of the turtle, included a copy to the NRC.
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