SITE INFORMATION AND CORRESPONDENCE

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TRIPLE E PRODUCE -2- MONITORING AND REPORTING PROGRAM SAN JOAQUIN COUNTY Apricot Orchard Spray Field The apricot orchard spray field monitoring shall include effluent samples collected from the discharge side of the air stripping column and prior to being pumped to the spray field. The apricot orchard spray field monitoring shall include at least the following: Constituents Units Tvue of Sample r n Flow gpd Cumulative monthly/quarterly) pH pH Units Grab weekly/monthlyl Specific Conductivity µ.mhos/cm Grab weekly/monthlyl Total Trihalomethanes µg/1 Grab weekly/monthlyl Total Dissolved Solids mg/1 Grab weekly/monthlyl Standard Minerals2 mg/1 Grab quarterly3 I Weekly sampling to be performed the first month ground water is pumped to the Apricot orchard spray field with the first weekly sample collected within the first two days after start-up,then monthly thereafter. 2 Standard minerals shall include all major cations and anions and include a verification that the analysis is complete(i.e.,cation/anion balance). 3 The first quarterly sample shall be collected during the first week of spray field application. GROUND WATER MONITORING Prior to construction,plans and specifications for ground water monitoring wells shall be submitted to Board staff for review and approval. Ground Water Monitoring For Plume Containment The ground water monitoring for plume containment shall include at least the following: ConstituentsUnits Tvoe of Sample Frequency Water Surface Elev. ft., MSL Grab weekly/quarterly) pH pH Units Grab weekly/quarterly) Specific Conductivity pmhos/cm Grab weekly/quarterly) Total Trihalomethanes µg/1 Grab weekly/quarterly) Total Dissolved Solids mg/l Grab weekly/quarterly) Standard Minerals2 mg/l Grab quarterly3 1 Weekly sampling to be performed the first month ground water is pumped,with the first weekly sample collected prior to start-up,then quarterly thereafter- 2 Standard minerals shall include all major cations and anions and include a verification that the analysis is complete(i.e.,cation/anion balance). 3 The first quarterly sample shall be collected during the fust month of extraction wells)operation. REPORTING In reporting the monitoring data,the Discharger shall arrange the data in tabular form so that the date, the constituents, and the concentrations are readily discernible. The data shall be summarized in such a manner to illustrate clearly the compliance with waste discharge requirements. Monthly and quarterly monitoring reports shall be submitted to the Regional Board by the 20th day of the following month.