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File No 2070 2 30 November 1993 Page 2 ' Following completion of the well purging, the wells were allowed to recharge prior to sampling Upon adequate recharge, each well was sampled via a sterile, discrete, disposable bailer The groundwater samples were placed in sterile containers, stored on ice and transported to Western ' Environmental Science &Technology, a State.of Calilornia certified analytical laboratory(CA DOHS FLAP No 1346) Laboratory Analyses were LondULtcd for the following parameters ' • total petroleum hydrocarbons as gasoline diesel fuel and motor oil (method 8015 modified), • aromatic volatile organics (EPA method 602), ' * total lead (EPA method 7423) 4 0 Field Data and Site Determinations ' The local flow direction and gradient of the gioundwater for the third quarter 1993 was calculated based on the static groundwater elevations measured in monitoring wells MW-1, MW-3 and MW-6 The local flow direr-tion of the gioundwatLr for the. third quarter 1993 was determined to be toward ' the east/northeast with a gradient of 00016 n/it This is consistent with the cast/northeast flow directions calculated for prior sampling~ ' While obtaining the groundwater samples 11,11 titular attention was paid to whether any noticeable petroleum hydrocarbon odor, discoloration or floating product was evident in the wells The following was noted during oui sampling • The groundwater sample L,011ected from illonitorinyt, well MW-1 had a strong petroleum hydrocarbon odor The water was slightly discolored gray No floating product was noted ' . The groundwater in monitoi ing well MW-2 had a moderate petroleum hydrocarbon odor No discoloration or floatnlg ptocluct was noted There was insufficient water in monitoring well MW-2 to collect a sample ' • The groundwater in monitoring WL11 MW-3 had no noticeable odor, discoloration or floating product There was 11INUflll.iC11t water In monitoring well MW-3 to collect a ' sample • Monitoring well MW-4 was diy at the time. of our sampling ' . Monitoring well MW-5 was diy at the time of our sampling The groundwater sample collected from monitoring well MW-6 had no noticeable odor, discoloration or floating product ' • Monitoring well MW-7 Ns,as diy at the time of our sampling • The groundwater s lnlplc collected from monitoring well MW-8 had no noticeable odor, discoloration or floating product ANDERSON V CONSULTING GROUP d