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I <br /> ENVIROI�VIENTAL'HEALTH**"bEPARTMENT <br /> °p4U SAN JOAQUIN COUNTY <br /> Donna K.Henan,RE.H.S. Unit Supervisors <br /> • < 304 East Weber Avenue, Third Floor Carl Bor <br /> Director groan,R.E.H.S. <br /> Al Olsen,R.E.H.S. Stockton, California 95202-2708 Mike Huggins,R.E.H.S.,R.D.I. <br /> • o- 'r• Program Manager Douglas W.Wilson,R.E.H.S. <br /> 4..FOPi+` Telephone: (209)468-3420 Mar aretLa orio,R.E.H.S. <br /> Laurie A.Coruna,R.E.H.S. 8 B <br /> Program Manager Fax: (209)464-0138 Robert McClellon,R.E.H.S. <br /> Mark Barcellos,R.E.H.S. <br /> JOHN PARKER FILE COPY <br /> 2151 COUNTRY CLUB BLVD <br /> STOCKTON CA 95204 <br /> RE: Boulevard Auto Service SITE CODE: 2424 <br /> 2151 Country Club Blvd. RO#: 00080 <br /> Stockton, CA., 95204. <br /> WORK PLAN: "Feasibility Studies and Monitoring Well Installation Work Plan" <br /> DATED: April 1. 2002. <br /> PREPARED BY: Advanced GeoEnvironmental Inc —Timothy Cuellar. <br /> STATUS: Approved. <br /> ADEQUATE AND NECESSARY ELEMENTS OF THE WORK PLAN [H&S 25299.37, <br /> subd(c)(3)]: <br /> • Install one 6-inch groundwater extraction (EW-1) well onsite and, <br /> • Install one 2-inch air sparge well (AW-1) onsite and, <br /> • Install one, dual-completed, 2-inch ozone sparge well (OW-1) onsite and, <br /> • Install three multi-level groundwater monitoring wells (MW-10, 11, and 12) <br /> onsite to —125' bgs and, <br /> • Conduct a 24-hour aquifer pumping test and, <br /> • Conduct a 48-hour insitu air sparge pilot test and, <br /> • Conduct a 4-week ozone sparge pilot test and, <br /> • Quarterly monitor and sample new groundwater monitoring wells and <br /> • Submit a report of findings to EHD. <br /> COMMENTS AND CONDITIONS: <br /> • None. <br /> REASONS FOR DISAPPROVAL OF THE WORK PLAN [H&S 25299.37, subd(c)(3)]: <br /> • None. <br /> DATED:A nn '125, 2002 BY: '�S(og <br /> 4Z"5.0_2__ <br /> // Michael . In a ., Se r REHS (209 468-3454 <br /> [X]Faxed to consultant on: 4Zf-OZi <br /> tao <br />