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F- <br /> P <br /> _==PIAMAW&�NAMAM <br /> WATERWORK <br /> y U fnvironrnental Solutions <br /> A RESNA Company <br /> E.NVIRONM�NTAI. HEALTH EngineThrougering <br /> PERM IT/SE.RVICE Engineering&Construction <br /> 1710 Main Street T <br /> Escalon, CA 95320 <br /> Phone: (209) 838-3507 <br /> Fax: (209) 838-3509 <br /> July 12, 1991 .- <br /> Eleanor <br /> 2, 1991 -Eleanor Ratliff <br /> San Joaquin County Public Health Services <br /> a P.O. Box 2009 <br /> Stockton, California 95201 <br /> RE: C. M. Weber Property - <br /> f 141 N.EI Dorado Street, Stockton, California <br /> Site Code: 2436 <br /> Dear Ms. Ratliff: <br /> On behalf on C. M. Weber Enterprises, Inc., RESNA IndustrieslWaterWork Corporation is <br /> submitting this Executive'Summary to accompany your public notice for the above referenced <br /> site. It is understood that the public comment period will extend from July 14, 1991 through <br /> August 16, 1991-and the selection of the final remedial alternative will be made upon review and <br /> consideration of the comments received during this period. <br /> Pursuant to Section 280.67, Subpart F .of 40 CFR of the Federal Register, RESNA <br /> IndustrieslWaterWork Corporation has prepared this Executive Summary to accompany the <br /> Public Health Services, Environmental Health Division (PHSIEHD) public notice. Petroleum <br /> hydrocarbons have been identified at 141 N. El Dorado Street in Stockton, California, during <br /> the removal of the underground product storage tanks. Five groundwater monitoring wells and <br /> three vapor extraction wells-have been installed at the site. Previous investigations have <br /> identified low levels of petroleum hydrocarbons in the soil and groundwater. A vapor extraction <br /> feasibility test was"conducted-and found to be a viable remediation option. Four alternatives for <br /> the control of off--gas emissions from the vapor extraction_ system were evaluated: (1) thermal <br /> oxidation, (2) catalytic oxidation, .(3) carbon adsorption, and '(4) an internal combustion (IC) <br /> engine. Based on the results of the vapor extraction feasibility test, a combination of vapor <br /> phase carbon and an IC engine are proposed. <br /> I071291.TLP <br />