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MONITORING AND REPORTING PROGRAM NO.R5-2004-0160 -2- CONTIGROUP COMPANIES,INCORPORATED FRENCH CAMP GRAIN ELEVATOR ENHANCED REMEDIATION PILOT STUDY SAN JOAQUIN COUNTY Field measured parameters shall follow the schedule below: Parameters Units Type of Sample Sampling Frequency Groundwater Elevation Feet,Mean Sea Level Grab Every time MW-3B,MW-413, Oxidation-Reduction Potential Millivolt Grab MW-9B,and MW-10B are Electrical Conductivity uhmos Grab sampled Dissolved Oxygen mwi Grab H 0.1 units Grab Field testing instruments (such as those used to test oxidation-reduction potential and dissolved oxygen) may be used provided that: 1. The operator is trained in proper use and maintenance of the instruments'-- 2. nstruments;2. The instruments are field calibrated prior to each monitoring event; 3. Instruments are serviced and/or calibrated by the manufacturer at the recommended frequency; and 4. Field calibration reports are provided with the appropriate monitoring report. REPORTING In reporting monitoring data,the Discharger shall arrange the data in tabular form so that the date, sample type, and reported analytical result for each sample are readily discernible. The data shall be summarized in such a manner to clearly illustrate compliance with waste discharge requirements and spatial or temporal trends, as applicable. The results of any monitoring done more frequently than required at the locations specified in the MRP shall also be reported to the Regional Board. 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 Registered Engineer or Geologist and signed by the registered professional. Quarterly reports shall be submitted to the Board by the 1st day of the second month following the end of each calendar quarter(i.e.,by 1 February, 1 May, 1 August, and I November). The reports shall be submitted separately from the quarterly monitoring reports required by MRP No. 5-00-858. At a minimum,the reports shall include: 1. Results of monitoring, including 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; calculation of casing volume; total volume of water purged, etc.; 2. Copies of all laboratory analytical report(s); 3. Cumulative data tables containing the water quality analytical results and depth to groundwater;