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San Joaquin County DIRECTOR <br /> v N Donna Heran, REHS <br /> OP• " " " c Environmental Health Department ASSISTANT DIRECTOR <br /> a` 600 East Main Street Laurie Cotulla, REHS <br /> (}m11e < Stockton , California 95202-3029 PROGRAM COORDINATORS <br /> Carl Borgman, REHS <br /> Cq . , -; . �P • Website: WWW.S /ehd Mike Huggins, REHS, RDI <br /> � � FOR� j9 OV. OI 9 Margaret Lagorio, REHS <br /> Phone: (209) 468-3420 Robert McClellon, REHS <br /> Fax: (209) 464-0138 Jeff Carruesco, REHS, RDI <br /> FEB 1 9 2008 Kasey Foley, REHS <br /> Foppiano Investments <br /> Ernest Foppiano <br /> 5313 Knox Drive <br /> Linden CA 95236 <br /> Subject: Stockton City Taxi Service Site Code : 1117 <br /> 2085 Fremont Street <br /> Stockton CA 95205 <br /> The San Joaquin County Environmental Health Department ( EHD) has reviewed Fourth <br /> Quarter 2007 Monitoring Report (Report), dated February 7, 2008, submitted on your <br /> behalf by ATC Associates Inc. (ATC) and has the following comments. <br /> The Report documents a routine quarterly groundwater monitoring and sampling event <br /> conducted at the above subject contaminated underground storage tank site during the <br /> fourth quarter of 2007. In the Report ATC recommends modifying the sampling frequency <br /> of monitoring wells MW-7 , MW- 10 , MWA 1R, MW-14 and MW-15 from quarterly to annual <br /> or semi-annual . This recommendation is based on groundwater data for these wells being <br /> non-detect for at least six quarters (with the exception of one anomalous detection of total <br /> petroleum hydrocarbons as gasoline in MW- 10). <br /> The EHD agrees with the recommendation, and further recommends that well MW- 13 be <br /> included in the switch from quarterly to annual sampling . The wells will continue to be <br /> monitored for depth to groundwater during each quarterly monitoring event. <br /> If you have any questions please call Lori Duncan at (209) 468-0337. <br /> Sincerely, <br /> Lori Duncan , REHS Nuel C. Henderson, Jr. , PG <br /> Senior Registered Environmental Health Specialist Engineering Geologist <br /> c: James Barton , CVRWQCB, 11020 Sun Center Drive #200 , Rancho Cordova, CA 95670 <br /> Todd Hafner, ATC, 1117 Lone Palm Avenue Suite B, Modesto CA 95351 <br />