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* ,HtiI1 C[` & A3SOcI�AS 14�1 2220 Loma Vista Dr. <br /> egistered Geologists Sacramento, CA 95825 <br /> Petroleurm:&-tAirteral Appraisers (916) 972-7941 <br /> FAX (916) 972-1683 <br /> WORKPLAN FOR ADDITIONAL <br /> r SITE INVESTIGATION <br /> J. H. Simpson Co. <br /> 4025 Coronado Ave., Stockton, CA <br /> Site Code 1068 <br /> Prepared for the San Joaquin County Public Health Service <br /> Environmental Health Division <br /> July 17, 1998 <br /> PURPOSE OF WORK: <br /> In January, 1997, a geoprobe unit obtained soil vapors and a groundwater sample from a <br /> location midway between a rerhoved UST and the pump island. The results of that fork <br /> indicated that petroleum hydrocarbon contamination v*s present to at least 46'below <br /> ground level. Refer to WJH report titled"Site Assessment Report Covering Soil Vapor <br /> and Groundwater Sampling"dated February 17, 1997, for details. <br /> As a r1qult of that work,the San Joaquin County EHD notified the owners that additional, <br /> site investigation would be needed. As directed by the EHD, a workplan was prepared <br /> and submitted to their office for placing one(1)groundwater monitoring well iat'he <br /> approximate center of the site of the removed UST. Their staff reviewed that workplan, <br /> (dated June 2, 1998, ) and stated that they wanted the monitoring-well Moved closerao <br /> the location.of the soil-vapor test, and a soil boring be placed in the,approximate center of <br /> the site of the removed UST. The following revised workplan has been prepared to <br /> comply with those instructions. <br /> PROPERTY LOCATION & USE: <br /> Th*property is located at 4025 Coronado Ave., Stockton, CA. The company <br /> .manufactures duct work for, and installs,services and repairs heating& air-conditioning <br /> `systems. <br /> PROPERTY OWNERS: <br /> Relf&Rosato, d.b.a. J. H. Simpson Co.,Inc., P. O. Box 8640, Stockton, CA 95208 <br /> CONTACT PERSON; <br /> J <br /> T!'n sato, (209)466-1477 <br /> LEGAL DESCRIPTION: <br /> 1 <br />