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;V <br /> t <br /> page 2, 3780 Linne Road <br /> P <br /> 3. SJCIEHD does not approve the collection of groundwater samples from these <br /> borings. Their purpose is to define the extent of the soil contamination; <br /> groundwater data from this area would be redundant as the area is covered <br /> by groundwater monitoring wells. <br /> 4. After the soil contamination is defined, your consultant must submit cost <br /> comparisons for the remedial alternatives discussed in the submitted <br /> "Feasibility Study" dated June 25, 2003. Per California Code of Regulation <br /> Title 23, Chapter 16, Article 11, Section 2725(f), feasibility studies must <br /> evaluate remedial alternatives for cost effectiveness. When the cost <br /> comparisons are submitted to SJCIEHD, review of the feasibility study can be. <br /> completed: <br /> 5. Two borings should be advanced at locations requested by SJCIEHD in the <br /> March 3, 2003 correspondence, to investigate the possible NNWISSE <br /> trenching sand channel. Grab�groundwater samples should be collected from <br /> these borings at 10 and 15 feet bsg. Your consultant may forego the A <br /> requested water sample at 30 feet bsg if they prefer at this time, but vertical <br /> definition of impacted soil and groundwater on the site is required prior to <br /> closure. <br /> If you have any questions or comments please call Lori Duncan at (209) 468-0337. <br /> Donna Heran, REHS, Director <br /> Environmental Health Department <br /> Lori Duncan, Senior REHS Nuel C. Henderson, Jr., RG <br /> LOP/Site Mitigation Unit IV LOP/Site Mitigation Unit IV -� <br /> cc: James Barton, CVRWQCB <br /> Eric Price, GTI <br />