Laserfiche WebLink
• <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 /> SUNII_Y OF PRIOR WORK & PERTINENT DATES : <br /> December, 1986 - 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 1/2 ' with 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 mg/kg, diesel & kerosene were below detection limits <br /> August, 1987 - Waste oil tank site reentered & deepened to 13 51 <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 /> Se tember 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 /> Janua x994 - 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 />