Laserfiche WebLink
i <br /> +. <br /> W?St With 8t <br /> time was reported by WCC to be toward the rith at of <br /> O,p�1B foot per foot. Alton Geascierce s interpretation <br /> water <br /> WCC's ground water elevation data shows the 9 <br /> gradient to have been towards the north. 1840, from <br /> were <br /> Ground water samples obtained on May 4 and lit <br /> wG <br /> Monitoring Wells MW-5 through MW_ were analyzed for TPHand MW-9 <br /> and BTEX. Samples obtained from MW-7, MW--B, <br /> contained detectable concentrations of TP8-G and/or BTEX <br /> constituents. Caltrans to <br /> in Alton Geoscience was re <br /> conduct preliminary 9 tainedand sampling to <br /> March 19round water monitoring Wells onsite. <br /> co <br /> determine the status Of the existing monitoring <br /> 4.0 FIELD PROCEDURES led ground <br /> MW-5 and MW_': through <br /> On May 6, 1991, Alton Geoscience monitored an sampled <br /> Wells MW-2 throughcould not <br /> waterMW_q. Monitoring Caltrans did not <br /> MW-9. MW--1 was not sampledrr�ovided bye casing ca <br /> be removed. The site plan �. <br /> Well Mw-n, located in the driveway of the <br /> was <br /> include Monitoring additional monitincluding all <br /> shop facility. Therefore,on July 5, 1991, <br /> performed at the facility <br /> monitoring wells. <br /> and same were Performed in <br /> Ground water monitoringu'9Lr tsland I.roaedures of the round' <br /> the depth to 9 <br /> accordance with the req each well, 01 foot from a <br /> Prior to purging and sampling Of <br /> water was measured within of each casing using an ' <br /> reference mark at the <br /> Prior to sampling, 'ground water fromOr <br /> electronic soundereCted far the presence of free produur ed '. <br /> each well was insp <br /> sheen using a clear hand bail11 er• volumesland was <br /> purged <br /> of a minimum of threewe temperatureg and conductivity was <br /> stabilization of p <br /> achieved, a clean bailer. <br /> Samples were collected using <br /> around water samPQam les were transferred to the appropriate <br /> The ground water P laced into an iced G=oolerund wfor <br /> ater <br /> clean sample containers, and p ed round <br /> delivery to a California-certified lab ?urged �! <br /> samples were analyaed for TDOT-PH-G pproved5,'S5_gallon drums <br /> water wasedi asite.in DOT-approved, <br /> pending proper <br /> o� ! <br /> 3 <br />