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ay el <br /> CLEARWATER <br /> G R O U P <br /> Envrronmrntaf Srrvrcrs <br /> GROUNDWATER MONITORING AND SAMPLING RESULTS <br /> Depth to groundwater 12 08 (MW-8) to 10 65 (MW-2) feet below top of casing <br /> FIow direction and gradient Southeast at 0 0025 ft/ft <br /> TPHg concentration range < 50 gg/L (MW-2,MW-4) to 12,000 4g/L (MW-1) <br /> Benzene concentration range <0 50 gg/L (MW-2, MW-3,MW-4) to 640 Ag/L (MW-55) <br /> MTBE concentration range Below detectable limits for all monitoring wells <br /> PROJECT STATUS & RECOMMENDATIONS <br /> The contaminant plume is currently delineated and being monitored on a quarterly basis <br /> The Workplan for Remedial Feasibility Testing dated August 17, 2001 was approved by the San Joaquin <br /> County Public Health Services in a letter dated September 12, 2001 Since then, Clearwater prepared <br /> and subrrutted costs for pre-approval for remedial feasibility testing and quarterly groundwater <br /> monitoring through the 2nd quarter 2002 Drilling and installation of a dual-phase test well and a i r <br /> isparge point at the site is tentatively scheduled for the week of December 17, 2001 <br /> ZB178C-4QT01 4 November 1, 2001 <br />