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a , <br /> 3 <br /> h <br /> ENVIRONMENTAL <br /> SAN JOAQUINCOUNTY <br /> Unit Supervisors <br /> Donna K.Reran,R,F.tl.s. 304 East Weber Avenue, Third Floor carr lr�maa,R.E.H.S, <br /> 3 { Director <br /> Mike Huggins,R.E.H.S,,R.D.I. <br /> At Olsen,R.E.H.S. Stockton, California 95202-2708 Douglas W,Wilson,R,E,H.S. <br /> ° a Pro';-am Mcoaairer Telephone: (209) 468-3420 Margaret Lagoa io,R.E.H.S. <br /> �aFoa Laurie A.Cotulia,R.E.H <br /> Fax: (209) 464-0138 Robert Meclellon,R.L.LI.s. <br /> .S. <br /> Program Manager Mark Darcellos,R.EJLS. <br /> MICHAEL D & SHARON OLIVA.REZ <br /> 436 SCOTTS ,AVENUE <br /> STOCKTON CA 95203 <br /> Re: Skips Service Station (former) Site Code: 1038 <br /> 300 S. California St. RO#:000504 <br /> Stockton CA., 95203. CUF#:8492 <br /> WORK PLAN- "Work Flan for CPT##7 for the Westerly Definition of the <br /> Gasoline Plume." <br /> DATED: July 21, 2004 <br /> PREPARED BY: Foothill Engineering—Mike Vlach, P.E. <br /> STATUS: APPROVED with conditions noted below. <br /> ADEQUATE AND NECESSARY ELEMENTS OF THE WORK PLAN iH&S 25296.10, <br /> subd(c}(3}l: <br /> Install one Cone Penetrometer Testing (CPT) bore hole to 125° bgs offsite in <br /> City of Stockton right of way to investigate the western extent of the gasoline <br /> plume, yet undefined and, <br /> Collect and analyze four(4) soil and groundwater samples for TPHg (8015m), <br /> BTEX (8021), Oxygenates (8260B) and, <br /> 0 Wait to start until SWRCB-CUF preapproved received and, <br /> ® Compile and submit a report of findings to EHD. <br /> COMMENTS AND CONDITIONS- <br /> EPA Method 8021 for BTEX and 8015m for TPHg may not be the most cost <br /> effective, especially since 8260B (FAB) can be used for TPHg, BTEX, and all <br /> j Oxygenates of concern. Verify with your laboratory if they are qualified to use <br /> this methodology and, <br /> Samples to be additionally analyzed for 1,2-DCA and EDB, by EPA Method <br /> 82608, and Lead (6010). <br /> SWRCB-CUF is no longer conducting preapprovals. This EHD approval is <br /> sufficient to start the permitting process. You are to obtain the City of <br /> Stockton encroachment permit and submit a copy along with and EHD Well <br /> Permit Application form and fee now. <br /> Report of findings should be formatted in context of a Site Conceptual Model <br /> REASONS FOR DISAPPROVAL OF THE WORK P AN [H&S 25296.10 subd c 3 : <br /> none. <br /> { <br /> DATED: August 17, 2004 BY: <br /> Mi hael Inf4ma, Senior EHS (209)468-3454 <br /> [X]Faxed to consultant on: August 17, 2004. <br />