Laserfiche WebLink
CCeoldgicat Technics Inc. <br /> 1101 7'h Street . <br /> Modesto,Califomia 95354 <br /> (209)522-4119/Fax#522-4227 <br /> November 17, 2005 <br /> Project No.: 425.2 <br /> Project Name: George's Station <br /> George and Mei Teranishi <br /> 1600 Durham Ferry Road <br /> Tracy, CA 95304-8799 <br /> Re: Work Plan Addendum—In Situ Remediation Pilot Test <br /> George's Station, 1600 Durham Ferry Road,Tracy, CA <br /> Dear Mr. &Mrs. Teranh hi: <br /> On November 17, 2005 Mr. Nuel Henderson and Geological Technics Inc. (GTI) discussed <br /> amendments to the scope of work to be performed at.George's Station. GTI,requests the <br /> following changes to the March 21, 2005 Interim Remedial Action Plan and June 14, 2005 <br /> Feasibility Work Plan—.In-Situ Remediation Pilot Test: <br /> • Install an additional observation well for a total of two observation wells <br /> 0 The new observation well will be sampled in lieu of sampling.MW-2 <br /> • Change the locations of the sparging and observation wells as shown on the attached map <br /> • Collect up to two soil samples from each of the observation wells and analyze them for <br /> TPHg,BTEX and fuel oxygenates by EPA method 8015/8260 <br /> • Reduce the sampling interval for petroleum hydrocarbons during the pilot test from daily <br /> to every-other-day <br /> o Groundwater samples would be collected at the same interval as the Cr/Cr-1 sampling <br /> events reducing technician costs as well as analytical costs <br /> If you have any questions or need additional information,please contact me. <br /> Respectfully submitted, <br /> 7--" <br /> Ra nold 1�. Kablanow II Ph.D. <br /> Y , <br /> Vice President <br /> cc: Nuel Henderson--EHD - SJC <br /> Jim Barton - CRWQCB-CVR <br /> USTCFP <br />