Laserfiche WebLink
Using a flight auger drill ng, five additional monitoring wells were installed in the <br /> 1 Spring of 2002 Water levels and quality have been monitored and reported for the six on <br /> site monitoring wells quarterly from May 2002 through the most recent June 2004 <br /> sampling <br /> ' SES reviewed findings to date in August 2003 and projected TPH diesel isoconcentration <br /> contours <br /> Additional effort to define the extent of the hydrocarbon plume has been carried <br /> ' out using a heavier rig for Cone Penetration and Hydro Punch sampling in December <br /> 2003 and May 2004 Sample results are summarized in Table I SUMMARY OF <br /> LABORATORY REPORTS, November 2000 through .tune 2004 <br /> The work to date has included Phase I and Phase li investigations identifying <br /> 1 petroleum hydrocarbon contamination on the production site and beyond the northern <br /> and eastern boundaries Production and distribution continue on a limited basis at the <br /> plant site, without incorporating diesel The underground storage tanks, thought to be the <br /> primary source of contamination have been removed The loading rack near the eastern <br /> ' boundary remains in service but no longer handles diesel containing products Diesel fuel <br /> and asphalt/diesel cutback product are no longer stored at the site <br /> The goal has been to complete the Phase II characterization of the loading rack <br /> tand mentioned UST area This has been expected to lead to removal or in situ <br /> remediation of hydrocarbon contaminated sod and closure by the Central Valley Regional <br /> ' Water Quality Control Board (CVRWQCB) The work plan is confined to the plant site <br /> and immediate adjacent contiguous property <br /> Characterization and sod remediation is scheduled to be completed by December <br /> 31, 2004 <br /> 1-3 <br />