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ENVIRONMENTAL HEALTH DEPARTMENT <br /> SAN JOAQUIN COUNTY <br /> Unit Supervisors <br /> Donna K.Heran,R.E.'H.S. Carl Bor man,R.E.H.S. <br /> 304 East Weber Avenue, Third Floor Borg <br /> man, <br /> Mike Huggins,R.E.H.S.,R.D.I. <br /> Al Olsen,R.E.H.S. Stockton, California 95202-2708 <br /> Douglas W.Wilson,R.E.H.S. <br /> •.C4 /FO•R \P• Program Manager Telephone: (209) 468-3420 Margaret Lagorio,R.E.H.S. <br /> Laurie A.Cotulla,R.E.H.S. Fax: (209) 464-01.38 .,___ Robert McClellon,R.E.H.S. <br /> Program Manager Mark Barcellos,R.E.H.S. <br /> EDWARD CARDOZA <br /> P O BOX 1022 <br /> MANTECA CA 95336 <br /> RE: Cardoza Enterprises SITE CODE: 0001530 <br /> 1151 West Louise <br /> Manteca, CA 95336 <br /> WORKPLAN: Soil and Groundwater Investi ag tion <br /> DATED: 12/02/03 <br /> PREPARED BY: Geological Technics Inc. <br /> APPROVED X - <br /> ADDENDUM 0 Submit by: <br /> ADEQUATE AND NECESSARY ELEMENTS OF THE WORKPLAN [Health&Safety Code <br /> (H&S) Section 25299.37(c)(3)]: . <br /> 1. Advancement of three GeoProbe borings to a depth of approximately thirty-five feet below <br /> surface grade(bsg); (One of these boreholes should be advanced as near as possible to the <br /> location where soil sample D-3 was collected.) <br /> 2. Collect soil samples at five-foot intervals beginning at five feet bsg; <br /> 3. Collect grab water samples at each boring; <br /> 4. Analyze at least one groundwater and soil sample collected in the capillary fringe of each <br /> borehole for:TPH-gasoline(TPH-g)by United States Environmental Protection Agency <br /> (EPA)SW-846 methods 5030/801513;benzene,toluene,ethyl benzene,and total xylenes <br /> (BTEX)by EPA methods 5030/8021/8260B;and di-isopropyl ether(DIPE),ethyl tert-butyl <br /> ether(ETBE),methyl tert-butyl ether(MTBE),tert-amyl methyl ether(TAME),tert-butanol <br /> (TBA),ethylene dibromide(EDB),and 1,2-dichloroethane(1,2-DCA)by EPA method <br /> 5030/826013;(Report 1,2-DCA and EDB at 0.5 µg/L for groundwater samples.). <br /> COMMENTS AND CONDITIONS: <br /> 1. Notify San Joaquin County Environmental Health Department(EHD)seventy-two hours prior <br /> to initiation of work at the site. <br /> 2. Obtain a boring permit from EHD. <br /> 3. Commence the fieldwork immediately without pre-approval from the State Clean up Fund,as <br /> the Fund is currently not issuing pre-approvals. <br /> DATED 02/24/04 BY <br /> Cc: CVRWQCB—James L.L.Barton <br /> Geological Technics Inc.—Raynold I.Kablanow II,Ph.D. <br />