SITE INFORMATION AND CORRESPONDENCE CASE 2

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MONITORING AND REPORTING PROGRAM NO.R5-2003-0141 4_ CALIFORNIA NATURAL PRODUCTS WASTEWATER TREATMENT FACILITY SAN JOAQUIN COUNTY more frequently than required by the Monitoring and Reporting Program, including wastewater data collected for industrial wastewater discharge permits, shall be reported in the next scheduled monitoring report. All analytical data collected that is required by this MRP shall be analyzed by a California licensed laboratory. As required by the California Business and Professions Code Sections 6735, 7835, and 7835.1, all groundwater monitoring reports shall be prepared under the direct supervision of a California Registered Engineer or Geologist and signed by the registered professional. A. Monthly Monitoring Reports Monthly reports shall be submitted to the Regional Board on the 1"day of the second month following sampling (i.e. the January Report is due by 1 March). At a minimum, the reports shall include: 1. Results of effluent and land application monitoring. 2. Land application area notations and calculations. 3. A comparison of monitoring data to the effluent limitations and an explanation of any violation of those requirements. Data shall be presented in tabular format. 4. If requested by staff, copies of laboratory analytical reports. 5. Industrial discharge permit monitoring. B. Quarterly Monitoring Reports The Discharger shall establish a quarterly sampling schedule for groundwater monitoring such that samples are obtained approximately every three months. Quarterly reports shall be submitted to the Regional Board on the I"day of the second month after the quarter (i.e. the January— March quarterly report is due by 1 May). Quarterly reports shall be submitted by 1 February, 1 May, 1 August, and 1 November. At a minimum, the Quarterly Report shall include: 1. Results of groundwater monitoring. The results of regular monthly monitoring reports for March,June, September, and December may be incorporated into their corresponding quarterly monitoring report. 2. A narrative description of all preparatory,monitoring, sampling, and analytical testing activities for the groundwater monitoring. The narrative shall be sufficiently detailed to verify compliance with the WDR, this MRP, and the Standard Provisions and Reporting Requirements. The narrative shall be supported by field logs for each well documenting depth to groundwater; parameters measured before, during, and after purging; method of purging; calculation of casing volume; and total volume of water purged. 3. Calculation of groundwater elevations, an assessment of groundwater flow direction and gradient on the date of measurement, a groundwater elevation contour map, comparison of previous flow direction and gradient data, and discussion of seasonal trends if any.