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California Tank Lines, Inc. Page 2 <br /> 3105 South El Dorado Street June 12, 2009 <br /> Stockton, California 95206 <br /> Taber Consultants has submitted $404 for the permit application and inspection fee for the off- <br /> s site boring. Since the EHD has approved the relocation of this boring onsite, the EHD will <br /> refund the $404 in the form of a credit card reversal. The EHD has received a boring permit <br /> application and inspection fee for the onsite borings and understands that the fieldwork is <br /> scheduled to take place on Monday, June 15, 2009. <br /> Contaminants of concern have been detected at high concentrations in groundwater samples <br /> collected from monitoring wells MW-2 and MW-4 but not in samples collected from MW- 1 and <br /> MW-3 ; therefore, the EHD approves the following reduction in sample collection: <br /> • Semi-annually collect groundwater from MW-2 and MW-4. Analyze the samples from <br /> MW-2 for total petroleum hydrocarbons (TPH) quantified as gasoline (TPH-g); TPH <br /> quantified as diesel (TPH-d); TPH quantified as motor oil (TPH-mo); benzene, toluene, <br /> ethyl benzene, and total xylenes, (BTEX); methyl tertiary-butyl ether (MTBE), tertiary- <br /> amyl methyl ether (TAME), di -isopropyl ether (RIPE), tertiary butyl alcohol (TBA), and <br /> 1 ,2-diebloroethane (1 ,2-DCA) . Analyze the samples from MW-4 for TPH-g, BTEX, <br /> 1 ,2-DCA, DIPE, and TBA. <br /> • Annually collect groundwater from MW- 1 and MW-3 and analyze the samples for <br /> TPH-d, TPH-g, and BTEX. <br /> Should you have any questions or concerns regarding this letter, please contact Vicki McCartney <br /> at (209) 468-9852, or by email at vmccartney@sjcehd.com. <br /> Sincerely, <br /> Victoria L. McCartney, REH I Nuel C . Henderson, Jr., PG <br /> Senior Registered Environmental Health Specialist Engineering Geologist <br /> c : Mr. Thomas Ballard, PG, Western Resource Management, Post Office Box 8938, Citrus <br /> Heights, California 95621 <br /> Mr. Guy Roy, Environeering, Inc, Post Office Box 2498, Danville, California 94526 <br /> Mr. James L.L. Barton, PG, California Regional Water Quality Control Board Central <br /> Valley Region, 11020 Sun Center Drive, Suite 200, Rancho Cordova, California 95670 <br />