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City of Ripon Well#12 <br /> Nitrate Study Report May 31,2000 <br /> 4.0 DEVELOPMENT OF WELL SAMPLING RECOMMENDATIONS <br /> After completion of the two research tasks, recommendations for sampling wells near Well 12 were <br /> developed. The locations of these wells are included as Figures 3 and 4. <br /> 4.1 Criteria for Selection <br /> Wells were selected for sampling based on proximity of the wells to Well 12 and the RFS site, and well <br /> conditions. The primary well conditions considered were screened interval, gravel pack interval, and <br /> depth of well seal. <br /> 4.2 Final Sampling Recommendations <br /> After discussion with the City of Ripon, SGI finalized the list of wells to be sampled. A total of five wells <br /> were recommended for sampling: two wells at the Jimco Truck Stop, the RFS water supply well, and two <br /> additional wells near Well 12 (Posadas well and Kamps well). Table 2 lists the wells recommended for <br /> sampling. <br /> 4.3 RFS Site Monitoring Well Sampling Recommendations <br /> Upon receipt of analytical data from the RFS quarterly sampling (section 3.3), SGI proposed to sample <br /> RFS wells MW-5, MW-103, and MW-104. This sampling was proposed as a result of the inconsistencies <br /> between the two sets of lab data from McCampbell and CTEL. Additionally, SGI wanted to compare the <br /> RFS well sampling data with previous Well 12 and current private well sampling data. <br /> Ri�W�1,a.P�. 4-1 The S®urce Group,Inc. <br />