Laserfiche WebLink
1 <br /> years; the removed tanks had been used for dispensing gasoline <br />' and storing waste oil . The property is presently being used as <br /> an automotive tune-up & repair facility; the dispensing pumps & <br /> associated piping were removed along with the tanks There are <br /> no records available concerning the dates that the tanks were <br />' installed <br /> SUMMARY OF PRIOR WORK & PERTINENT DATES : <br /> December, 19 - Application filed by Western Meter Service to <br /> remove two (2) 3 , 000 gallon gasoline tanks and one (1) 150 gallon <br /> waste oil tank from the property. <br /> April, 1987 - The 3 tanks were removed and soil samples taken <br /> Laboratory analysis of samples from beneath the gasoline tanks <br />' were below detection limits, but the soil sample from the waste <br /> oil site revealed the presence of ethylbenzene, toluene, xylene, <br /> TPH-G, & motor oil . <br /> June, 1987 - Site of removed waste oil tank was deepened to about <br /> 8 1/21 wa.th a backhoe. A sample was taken at that depth and <br /> analyzed for TPH; gasoline was measured at 1500 mg/kg, & motor <br /> oil at 4200 mglkg; diesel & kerosene were below detection limits <br /> AuqMst, 1987 -- Waste oil tank site reentered & deepened to 13 . 5 ' <br />' under direction of the EHD. A soil sample taken at that depth <br /> was analyzed for benzene, toluene, xylene, & TRPH. Motor oil was <br /> measured at 3100 mg/kg; all others were below detection limits . <br />' October, _1989 - Site was reentered & soil sample taken at <br /> approximately 23 , below grade . Laboratory analysis showed that <br /> oil, as motor oil, was present at 280 mg/kg. This work was not <br />' witnessed by the County EHD. <br /> September, 1993 - Workplan submitted by Wm. J. Hunter & Assoc . , <br /> (WJH, ) to place four (4) 30 foot deep soil borings . Refer to the <br />' PAR, dated January 4, 1994, prepared by WJH, for a copy of that <br /> workplan. <br />' October 27 & 28 1993 - work was performed under the direction of <br /> Wm Hunter, RG, using Spectrum Exploration auger rig & personel <br /> Refer to the above referenced SAR for a details, the locations of <br />' those soil borings are shown on PLATE I . <br /> January, 1994 - A report entitled "PROBLEM ASSESSMENT REPORT <br /> COVERING SOIL CONTAMINATION INVESTIGATION" , was prepared by WJH & <br />' submitted to the San Joaquin County EHD covering the field work <br /> conducted in October, 1993, and discussing the results Refer to <br /> that document for details of work done . <br /> 3 <br />