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rt r. <br /> GROUNDWATER <br /> OLOGY, INC.OIL RECOVERY SYSTEMSTECHN <br /> Tribute Road,Suite G.5aeremenW,California 958S51918?921-18011 <br /> November 12 , 1987 <br /> Project Number 202/799-8221 <br /> Mr, Ken Olds <br /> Lammersville School District <br /> 16555 West Von Sosten Road <br /> Tracy, CA 95375 <br /> RE: CHANGE ORDER FOR ADDITIONAL <br /> GROUND WATER SAMPLING <br /> Dear Mr, Olds: <br /> This letter is to request a change order for additional ground <br /> water monitoring and sampling. This proposed additional work is <br /> to satisfy a request by David Brent of the California Regional <br /> Water Quality Control Board (CRNQCB) and Ms. Laurie Cotulla of <br /> San Jaquin <br /> change <br /> orderoLocalDistrict S <br /> Is for the additionalwo k stepslisted below andito cover <br /> the cost of these steps. <br /> SCOPE OF WORK AND ASSOCIATED COST <br /> 1 . Monitor depth to water and sample the five 500.00 <br /> existing monitoring wells . . . . . . • . • • • • • • • • <br /> -� 2. Laboratory analysis of water samples <br /> from <br /> ing wells. <br /> each of the five existing <br /> Analysis will be a Modified EPA Method 602 500.00 <br /> (PID/FID) at $100,00 per sample . . . . . . . • . • • • • • <br /> 3• A brief report containing the laboratory <br /> results to be mailed to David Brent, <br /> - CRWQCB, Ms. Laurie Cotulla, S.J,L.I[,D. , and 500.00 <br /> Mr. Ken Olds, Lanmersville School District <br /> TOTAL COST $1,500.00 <br /> GTI would provide the above described services on a time and <br /> materials basis , not to be exceeded without prior authorization <br /> ate the Lbasis ,ville School District. Services would be billed <br /> from---- --- in--accor_danc_e_ w-1_th the enclosed Professional Rate Schedule, with <br /> r terns and conditions stated thereon.- <br /> offices throughout the U.S.,Canada and Overseas <br /> w; Wertern officer in:Tempe,AZ;Concord, CA;Sacramento, CA;San Diego,CA; <br /> Torrance,CA; Ventura, CA;Engftu+ood,CO;Renton, WA <br /> i <br />