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REVISED MONITORING AND REPORTING PROGRAM NO. 97-808 -2- WESTERN 2- WESTERN FARM SERVICE, VERNALIS SAN JOAQUIN COUNTY REPORTING When reporting data, the Discharger shall arrange the information in tabular form so that the date, the constituents, and the concentrations are readily discernible. The data shall be summarized in such a manner as to illustrate clearly the compliance with this Order. In addition, the Discharger shall notify the Board within 48 hours of any unscheduled shutdown of any groundwater extraction system. As required by the California Business and Professions Code Sections 6735, 7835, and 7835.1, all reports shall be prepared by a registered professional or their subordinate and signed by the registered professional. Quarterly reports shall be submitted to the Board by the 30th day of the month following the end of each calendar quarter (i.e., by 30 January, 30 April, 30 July, and 30 October) until such time as the Executive Officer determines that the reports are no longer necessary. Each quarterly report shall include (a) a groundwater contour map, (b) isocontour contaminant concentration maps, (c) a description of the quarterly sampling event including field notes, (d) a description of the status of any ongoing investigation or remediation, (e) an analysis of whether the contaminant plume is being captured by the extraction system, (f) cumulative tables containing the water quality analytical data and depth to groundwater and (g) a copy of the laboratory analytical data report. An annual report which evaluates the effectiveness and progress of the investigation and remediation shall be submitted to the Board by 30 January of each year. This annual report may be substituted for the fourth quarter monitoring report. The annual report shall contain the following minimum information: (a) both tabular and graphical summaries of the monitoring data obtained during the previous year, (b) groundwater contour maps and contaminant concentration maps containing all data obtained during the previous year, (c) a discussion of the long-term trends in the concentrations of the pollutants in the groundwater monitoring wells, (d) an analysis of whether the contaminant plume is being captured by the extraction system or is continuing to spread, (e) plans as needed for improving the groundwater extraction or treatment system, (f) the anticipated date for completion of cleanup activities, (g) the reasons for, and duration of, all interruptions in the operation of the extraction or treatment system, (h) a description of all remedial activities conducted during the year and an analysis of their effectiveness in removing the contaminants, (i) an identification of any data gaps and potential deficiencies/redundancies in the monitoring system or reporting program, and 0) if desired, a proposal (with rationale) of any desired revisions to the groundwater sampling plan frequency and/or list of analyzes. The results of any monitoring done more frequently than required at the locations specified in the MRP shall also be reported to the Board. Prior to the startup of a groundwater treatment system, the Discharger shall supply Board staff with a groundwater monitoring program designed to demonstrate the effectiveness of the groundwater treatment system.