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Y <br /> ENVIRONMtN AL EALTH DEPARTMENT <br /> SAN JOAQUIN COUNTY <br /> Unit Supervisors <br /> Donna K.Heran,R.E.H.S. Carl Bergman,R.E.H.S. <br /> Director <br /> 304 East Weber Avenue, Third Floor <br /> Mike Huggins,R.E.H.S.,R.D.I. <br /> 1�sc1 <br /> Al Olsen,R.E.H.S. Stockton, California 95202-2708 Douglas W.Wilson,R.E.H.S. <br /> �.., p. Program Manager Telephone: (209) 468-3420 Margaret Lagorio,R.E.H.S. <br /> 9Gico R�` <br /> Laurie A.Co R.E.H.S. Fax: (209) 464_0138 Robert McClellon,R.E.H.S. <br /> Program Manager Mark Barcellos,R.E.H.S.. <br /> JAMES M & B LANGSTON <br /> PO BOX 97 <br /> LATHROP CA 95330 <br /> RE: former Langston's Arco Site Code: 1503 <br /> 15615 S. Seventh St. RO#: 00316 <br /> Lathrop, CA., 95330 <br /> WORK PLAN: "Additional Site Assessment Work Plan" <br /> DATED: November 6, 2003 <br /> PREPARED BY: Advanced GeoEnvironmental — Paul Dotson <br /> STATUS: APPROVED with conditions noted below. <br /> ADEQUATE AND NECESSARY ELEMENTS OF THE WORK PLAN fH&S <br /> 25299.37 subd(c)(3)l: <br /> Install two Geoprobes for lateral groundwater plume delineation and, <br /> Analyze soil and grab groundwater samples for TPI-Ig (8015m) and <br /> BTEX plus five Oxygenates and 1,2-DCA and EDB (8260) and, <br /> Submit report of findings to EHD. <br /> COMMENTS AND CONDITIONS: <br /> • Submit copy City of Lathrop encroachment permit along with EHD <br /> well permit application and fee and, <br /> • Analyze groundwater sample for methanol and ethanol (8015m) and, <br /> • Report of findings to be in format of Site Conceptual Model. Vertical <br /> delineation required before No Further Action evaluation can be <br /> conducted. <br /> REASONS FOR DISAPPROVAL OF THE WORK PLAN [H&S 25299.37, <br /> subd(c)(3)1: <br /> none <br /> DATED: November 14, 2003 BY: <br /> Michael Infurna EHS 9 468-3454 <br /> �� <br /> [X] - Faxed to consultant on: <br /> r <br />