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MONITORING AND REPORTING PROGRAM NO. R5-2014-0815 - 5 - NESTLE USA, INC. - RIPON SAN JOAQUIN COUNTY 3. Table 2 of this MRP specifies the required water sampling and analyses for the treatment systems installed on private drinking water supply wells by the Discharger. The table includes the required sampling frequencies and constituents to be quantified by a chemical analysis laboratory certified by the State of California. Discharger shall collect samples of the influent, the effluent, and the midpoint from each treatment system. Samples from all three points shall be collected at the frequencies specified in Table 2 and at approximately the same time. The Discharger shall maintain the treatment systems so that VOCs are removed before discharge. With proper operation and maintenance of the treatment systems, all VOCs shall be removed from extracted groundwater prior to discharge. For private drinking water supply well treatment systems, VOCs shall not be detected in effluent samples at concentrations equal to or greater than 0.1 pg/L. Any detection of VOCs in effluent samples shall be reported to the Regional Water Board within 24 hours. In the event effluent sample results indicate VOCs at or above a MCL in either midpoint or effluent samples, the Discharger shall make arrangements to replace or refresh the GAC within 5 days of receipt of the laboratory results. Discharger shall also replace or refresh GAC within 5 days of receipt of laboratory results showing trichloroethene or vinyl chloride equal to or greater than 0.1 pg/L in effluent samples. After the GAC has been replaced or refreshed, the Discharger shall immediately collect influent, effluent, and midpoint samples for expedited analysis (48 hours or less) to confirm the treatment system is effectively removing all VOCs. 4. The groundwater monitoring program for monitoring wells shall follow the sampling and analytical program presented in Table 3, titled: "Required Well Sampling Frequencies", and Table 4, titled: 'Required Well Analytical Program". Any new monitoring wells added to this MRP shall be sampled on a quarterly basis for VOCs. Any threatened private drinking water supply wells that are discovered after the date this MRP is issued and are not listed on Table 3 shall be sampled quarterly at a minimum. In addition, the Discharger shall comply with the sampling plan outlined in the latest version of the Water Replacement Contingency Plan. Sample collection and analysis shall follow standard EPA protocol. REPORTING 6. When reporting data, the Discharger shall arrange the information in tabular form so that the date, constituents, sample types (e.g., influent, effluent, midpoint, well type, etc.), and concentrations are readily discernible. The data shall be summarized in such a manner as to clearly illustrate compliance with this Order. 7. 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.