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ENVIRONMENTAL HEALTH DEPARTMENT <br /> a�,N SAN JOAQUIN COUNTY <br /> Q•.,. _ a Donna K.Heran,R.E.H.S. Unit Supervisors <br /> Director 304 East Weber Avenue, Third Floor Carl Borgman,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 /> oq....__....N P Program Manager Telephone: (209)468-3420 Douglas W.Wilson,R.E.H.S. ' <br /> <<FO R Laurie A.Cotulla,R.E.H.S. Margaret Lagorio,R.E.H.S. <br /> Program Manager Fax: (209) 464-0138 Robert McClellon,R.E.H.S. i <br /> Mark Barcellos,R.E.H.S. <br /> KEN HILLIARD <br /> 7-ELEVEN INC E <br /> PO BOX <br /> 11 <br /> DALLAS 7TX 75221-0711 AUG 2 2 2003 <br /> F <br /> RE: 7-Eleven Store#32262 Site Code: #1505 <br /> 2360 West Grantline Road <br /> Tracy CA 95376 <br /> WORK PLAN: Soil and Groundwater Assessment Work Plan <br /> DATED: August 12,2003 <br /> PREPARED BY: SECOR International Incorporated j, <br /> APR VED: <br /> I APPROVED: <br /> ADDENDUM NEEDED: x Su mit : September 22,2003 k <br /> a _ I <br /> ADEQUATE AND NECESSARY ELE ,• NTS OF THE WORK FT AN (H&S 25299.37,subd(c)(3)1: <br /> E <br /> 1. Installation of five shallow groundwater monitoring wells,MW-1 thru MW-5,for investigation of the lateral extent P <br /> of the shallow contaminant plume. The wells will be built to total depth of 17 feet below surface grade(bsg). <br /> 2. The borings for the monitoring wells will be continuously cored from 5 to 17 feet bsg. <br /> 3. Soil samples collected at 5-,10-,and 15 feet bsg will be submitted for laboratory analysis of listed constituents. <br /> 4. A sensitive receptor/well survey will be conducted to identify all municipal,industrial,domestic,agricultural or <br /> other wells located within a 2000-foot radius of the site. <br /> I <br /> COMMENTS AND CONDITIONS: F <br /> 1. SJC/EHD directed the submittal of a work plan to investigate both the vertical and lateral extent of the <br /> contamination at this site. The submitted work plan did not propose a vertical investigation. Please submit an <br /> addendum to the work plan to address the issue of vertical definition of the contamination. <br /> 2. In addition to the laboratory analyses listed in the work plan,all samples must be analyzed for 1,2-dichloroethane " <br /> and ethylene dibromide. <br /> Lori Duncan,Senior REHS Nuel C.Henderson,Jr.,R.G. <br /> LOP/Site Mitigation Unit IV LOP/Site Mitigation Unit IV <br /> arrl�� <br /> cc: ames Barton,J CVRWQCB <br /> JaffAuchterlonie,SECOR <br /> ------------------ <br /> . t <br />