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groundwater resources inc. <br />January 9, 1990 <br />Mr. William Snavely <br />San Joaquin County <br />Environmental Health Division <br />P.O. Box 2009 <br />1601 East Hazelton Avenue <br />Stockton, California 95201 <br />Dear Mr. Snavely, <br />.11 <br />5400 ALDRIN CT. <br />BAKERSFIELD, CALIFORNIA 93313 <br />General Engineering Contractor <br />Class A/Haz License No. 520768 <br />RE: CONTEL <br />17855 S. Comconex Road <br />Manteca, California <br />On December 12, 1989, Groundwater Resources, Inc. (GRI) removed one <br />10,000 gallon and one 5,000 gallon underground gasoline fuel tank <br />from the Contel facility located at 17855 S. Comconex Road in <br />Manteca, California. <br />The tanks were decontaminated on site using a high pressure steam <br />cleaner and inerted with dry ice. Rinsate was disposed of at <br />Gibson Oil and Refining in Bakersfield under hazardous waste <br />manifest 88433638. The tanks were removed to Nunes Heavy Equipment <br />Service at 20405 Austin Road in Manteca. <br />Soil was sampled under San Joaquin County Health Department <br />direction at both ends of each tank, at a depth of two feet beneath <br />the base. The samples were analyzed at B.C. Laboratories in <br />Bakersfield for BTXE, TPH (gasoline), tetraethyl lead and <br />ethylenedi bromide. Only minute qualities of ethylenedi bromide were <br />detected (.32 - .66 ug/kg). <br />Enclosed are copies of the lab <br />disposition tracking record and <br />if there are further questions. <br />Sincerely, <br />Claus L. Engelhardt <br />Project Geologist <br />CLE:tab:070.rep <br />Enclosure. <br />cc: George Hedrick, CONTEL <br />results, chain of custody, tank <br />the manifest. Please contact me <br />Rex J. Young <br />State Registered Geologist <br />MAILING ADDRESS: P.O. BOX 9383, BAKERSFIELD, CA 93389 )805) 835-7700 <br />LOS ANGELES )213) 724-3147 <br />