SITE INFORMATION AND CORRESPONDENCE

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MONITORING AND REPORTING PROGRAM NO. 94- 2 WOOLSEY OIL COMPANY, LODI, SAN JOAQUIN COUNTY REPORTING Quarterly reports shall be submitted to the Board by the 30th day of the month following the end of each calendar quarter until such time that the Executive Officer determines tha �e reports are no longer necessary. The reports shall include ground water contour maps for each quarter, the status of any ongoing investigation or remediation, and the following in tabular form: water quality analytical data, depth to ground water, free product thickness, and ground water elevations. prior to ground water treatment system modifications, the. Discharger shall supply Roard staff with a ground water monitoring program that will demonstrate the effectiveness of the ground water treatment system. An annual report evaluating the effectiveness and progress of investigation and remediation shall be submitted to the Board by 30 January of each year and may be substituted for the fourth quarterly report. The report shall contain at a minimum the following information: both tabular and graphical summaries of the monitoring data obtained during the previous year; trends in the concentrations of the pollutants in ground water monitoring wells; whether the contaminant plume is being captured by an extraction system or is continuing to spread; plans as needed for improving the ground water extraction or treatment system; and the anticipated date for completion of cleanup activities. The annual report also shall include the reasons for and durations of all interruptions in the operation of treatment systems. Based on the data from the previous year, the Discharger shall, in the annual report, identify data gaps and potential deficiencies/redundancies in the monitoring system or reporting program and propose any necessary revised ground water sampling plan frequency and analyses with the rationale for the proposed revisions. The results of any monitoring done more frequently than required at the locations specified in the Monitoring and Reporting Program shall be reported to the Board. The Discharger shall implement the above monitoring program as of the date of this Order. WILLIAM H. CROOKS, Executive Officer (Date)