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MONITORING AND REPORTING PRARAM NO.R5-2002-0829 -2- KEARNEY-NATIONAL,INC.AND ALPINE BUILDERS,INC. FORMER KEARNEY-KPF FACILITY SAN JOAQUIN COUNTY The groundwater monitoring program for the 45 wells and any wells installed subsequent to the issuance of this MRP, shall follow the schedule in Table 1, unless the well is being used as an extraction or injection well, in which case sampling shall be in accordance with the extraction or injection well monitoring in MRP No. 5-01-269, Revision 1. The maximum detection limits for the constituents of concern are listed in Table 2. Once a well has been approved for abandonment, the monitoring requirements listed are no longer applicable. The volume of extracted groundwater shall be provided in semi-annual monitoring reports. Sample collection and analysis shall follow standard EPA protocol and the approved Water Quality Sampling and Analysis Plan. Prior to sampling, the groundwater elevations shall be measured in all wells. The Discharger shall obtain quantitative, stabilized field parameter measurements and purge a minimum of three casing volumes each time a well is sampled. Field parameters shall include pH, temperature, electrical conductivity, and turbidity. 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 and in chronological order. The data shall be summarized in such a manner as to illustrate clearly the compliance with this MRP. 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. Semi-annual reports shall be submitted to the Board by 1 February and 1 August of each year until such time as the Executive Officer determines that the reports are no longer necessary. Each semi- annual report shall include the following minimum information: 1. A description and discussion of the groundwater sampling event and results, including trends in the concentrations of pollutants and groundwater elevations in the wells, how and when samples were collected, and whether the pollutant plume(s) is delineated; 2. A description of the groundwater sampling event, including field logs. At a minimum, field logs shall contain water quality parameters measured before and during purging and prior to sample collection, method of purging, depth of water, volume of water purged, etc.; 3. Copies of all laboratory analytical report(s)that includes laboratory quality assurance/quality control sampling data; 4. A calibration log verifying calibration of any field monitoring instruments (e.g., DO,pH, EC, turbidity meters) used to obtain data; 5. Groundwater elevation contour maps for all groundwater zones for each quarter; 6. Isocontour pollutant concentration maps for all groundwater zones;