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San Joaquin County DIRECTOR <br /> PQ u N Donna Heran, REHS <br /> O K i• C` Environmental Health Department ASSISTANT DIRECTOR <br /> z 600 East Main Street Laurie Cotulla,REHS <br /> a' <br /> N' { Stockton, California 95202-3029 PROGRAM COORDINATORS <br /> r <br /> .. Mike Huggins,REHS,RDI <br /> !' Margaret Lagorio, REHS <br /> �'q NSP Website: www.sjgov.org/ehd Robert McClellon, REHS <br /> FOR <br /> Phone: (209)468-3420 Jeff Carruesco,REHS,RDI <br /> Fax: (209)464-0138 Kasey Foley,REHS <br /> June 5, 2009 <br /> John and Margaret Marci <br /> 20 Mobile Lane <br /> Crescent City, California 95531-8409 <br /> Subject: John and Margaret Marci Property <br /> 2969 Loomis Road <br /> Stockton, California 95205 <br /> By letter dated May 29, 2009, the San Joaquin County Environmental Health Department (EHD) <br /> received a request from your consulting firm, Geological Technics Inc.,to reduce the frequency of <br />{ sampling monitoring wells MW-1, MW-4, MW-5, MW-6, and MW-7 from quarterly to semi- <br /> annually to comply with the State Water Resources Control Board Resolution No. 2009-0042. <br /> The EHD approves the semi-annual monitoring and sampling of MW-4, MW-5, and MW-7 during <br /> the second and fourth quarters. Move MW-1 and MW-6 from the quarterly to the annual <br /> groundwater-monitoring program that the EHD initially approved by letter dated September 18, <br /> 2008, for sampling MW-2, MW-3, MW-8, .MW-104, MW-105, and MW-106 during the fourth <br /> quarter. <br /> The EHD also approves analyzing all groundwater samples for total petroleum hydrocarbons <br /> quantified as diesel (TPH-d) only. This means removing TPH quantified as gasoline (TPH-g) and <br /> benzene, toluene,ethyl benzene, and total xylenes(BTEX) from the constituents for analysis. <br /> Please contact Vicki McCartney at (209) 468-9852 or by e-mail at vmccartnev(iz;,-sjceh.d.com if you <br /> have any questions. <br /> Sincerely, <br /> Victoria L. McCartney,REHS Nuel C. Henderson,Jr.,PG <br /> Senior Registered Environmental Health Spe ist Engineering Geologist <br /> c: Mr. Reza Namdar Ghanbari, Geological Technics Inc., 1172 Kansas Avenue, Modesto, <br /> California 95351-1526 <br /> Mr. James L.L. Barton; PG;-Cali€ortlia-Regional--W-a-ter Quality Control-Boar-d-C-entral-Vailey <br /> Region, 11020 Sun Center Drive, Suite 200,Rancho Cordova, California 95670 <br /> I <br />