Laserfiche WebLink
.-Ra'- '-rte•.�, F _ 3a ' � �'. - yam,. � s�� - i. . _ 9. _.� '�,- <br /> w. <br /> :.s <br /> [EIIW <br /> DOGROUNDWATER <br /> 'T'ECHNOLOGY, INC. 18321'ributeRoad,Suite G,5,cramm,n.calirumi;�,�,:; <br /> January 25, 1989 <br /> ATTACHMEi'7T A I`tltitSl3EdhU�t <br /> Proposal No. 202/029000-301 <br /> Mr. Kenneth Olds <br /> Superintendent <br /> Lammersville School District <br /> 16555 West Von Sosten Road <br /> Tracy, CA 95376 <br /> Mr. Olds: <br /> Groundwater Technology, Inc. (GTI) presents this proposal and <br /> cost estimate for additional site assessment work at the <br /> Lammersville School in Tracy, California. The work steps <br /> Included in this written proposal would provide the hydrogeologic <br /> and chemical data needed for preparation of a Problem Assessment <br /> Report (PAR) which is required by the California Regional Water <br /> Quality Control Board, Central Valley Region (CRWQCB--CVR) . In <br /> order to define the downgradient extent of the dissolved hydro- <br /> carbon plume, GTI recommends the following work steps: <br /> Install three additional 2-inch diameter PVC monitoring <br /> wells to a total depth of 20 feet at the approximate <br /> locations shown in Figure 1. <br /> Collect soil samples at 5-foot intervals to total depth <br /> of the wells, using a split-spoon sampler and brass <br /> sample tubes. <br /> Select one soil sample from each boring and submit the <br /> samples to an analytical laboratory nd foranalysisaof <br /> total petroleum hydrocarbons (TPH) as gasoline <br /> benzene, toluene, ethylbenzene, and xylene (BTEX) <br /> concentrations <br /> Survey the three new wells for elevation control. <br /> - Monitor groundwater levels and collect water <br /> samples from all monitoring wells. <br /> -.— --'---'=-...---..._.--------------------'--------Therwells.--would__be_..pur.ged--by---bailing-prior to sampling <br /> to insure representative formation water is-o to ne <br /> for analysis. <br /> a., <br /> offices throayhnut the US.,Canada and Overseas <br />