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Univarsity oaf Cal .yarmja Sojis publication , shows the soil types in the area. The Tracy Gas fielu is about 2 males to south; it produces dry gas from sands of Upper Cretaceous age at depths of 4,000 to 15,000 zeet. ' DEPTH TO GROUNDWATER: Water was not encountered at a depth of 8 feet during removal of the GUST, and is reported to be at about 10' bgl in the area. A review of semi-annual water table maps ' preparea by the County Flood Control Distract indicate that the water table nas been as harsh as the surface an past years - the spring of 195- ir, particular; Plate V as a portion of the San Joaquin County Flooc, Control District neap shcaraang lines of' equal elevation. There are no water wells in the immediate area, and therefore good central is lack-Ing. As mentioned earlier, crops are wa-cered by open aitch, and aomGstac "ester is piped an. Plate ' VI show,: the locations o= control wells used for constructing the water level maps. ' WATER; DUAe_IT1 - GrounJvrater i , chis area as unsuited for domestic use or watering lxtiestccl. uue to the high concentrations of chlorzde,, lrli Lratas ire 5rng/l , but boron is high , :2 mg/l . Sal t-tat er-ant Cr ❑ps sz.ch as al-r al r a, ^tomatoes and Means can be grower , ho"agar . DETAILS OF PETOR WOPf': On A_,gust 7, 1991 , dim Thorpe Oil removed a 350 gallon UST "hick had contained leaded gasoline. The tank was ecnpt�, at the Lance of re,noval . There are no records concerning wnen the tank, .bas installed, or years at was in ' service, out at had not baen used at least since November, 198B, when the H tr,r. wool; possesafon o4 the property. The re eioved tans, tial in very poor condition, and there was vasable contamination noted; refer to E•.hxbit B. A soil sample was tat-en from beneath the site of the tank at a depth of B' by a Jam Thorpe Cal employee under the supervision of EHD personel , and transported unser proper chain of custody, (see Exhibit C, ) to Westoe- Ar M l .tical for anal ys_s. The sample was tested for BTEk , TFH=G, ED£-, and tctwi Iead. The results of those tests are shown in Table i , T1,ere w,7,z no water or dampness observed in the ' bottom of the excawatior at 8 feet. The hole "as failed in with tyre remo✓eo spoil to avoid possible ' injury to humor is or animals. A 'va s a t to the site on September 11 revealeo no evidence of surface contamination or odors. Because gr rundNate=r 3n 'n-s zrc=a is a:ppro<imately 10 feet below 2