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Lee Higgins - 2 - 2 December 2010 <br /> Former Vernalis Pump Station <br /> r Vernalis, San Joaquin and Stanislaus Counties <br /> An ecological screening evaluation indicates that threats to sensitive ecological receptors do <br /> not appear to exist on, or within one-mile of the Site. SAIC concluded that no remedial action <br /> is necessary to protect human health or ecological receptors, and that a decision for no further <br /> action determination could be made for the Site. <br /> Based on our review, Central Valley Water Board staff has the following comments: <br /> • Consistent with other OVP/TAOC sites, a Soil and Groundwater Management Plan <br /> (SGMP) needs to be submitted. <br /> • Central Valley Water Board staff concurs with the findings of the Screening Evaluation <br /> and related supporting documentation, and that the Site is a candidate for closure. A <br /> request for a No Further Action Required (NFAR) determination may be prepared. <br /> • Documentation to support a NFAR closure determination should be completed in <br /> accordance with California Regional Water Quality Control Board, Central Valley <br /> Region's 16 April 2004 update to Appendix A of the Tri-Regional Board Staff <br /> Recommendations for Preliminary Investigation and Evaluation of Underground Tank <br /> Sites - No Further Action Requests. Section 6.5 - NFAR for Cases Exceeding Water <br /> Quality Objectives should be followed for documenting Site conditions. <br /> By 1 March 2011, please submit the SGMP and documentation to support a request for NFAR <br /> determination. <br /> If you have any questions or comments, please call Dean Hubbard at (559) 445-5179. <br /> SHELTON R. G AY C. DEAN HUBBARD <br /> Senior Engineering Geologist Engineering Geologist <br /> P.G. No. 6357 <br /> cc Harlan Knoll, San Joaquin County EHD, Stockton <br /> James Simpson, Stanislaus County DER, Modesto <br /> Rosalio Arcos, Oakdale <br /> Arnold and Doreen Bellini, Tracy <br /> Alfred Schaeffer, Vernalis <br /> Michael Hurd, SAIC, Oakland <br /> Michael Jenkins, SAIC, Sacramento <br />