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�a <br /> n% <br /> 1.p INTRODUCTION <br /> - grit Ekholm to summarize the results of <br /> This report is being submitted on behalf of Mrs. Marg n County Public Health Services, <br /> the subsurface investigation requested by the San Jassessment at 1702 Jackson <br /> Environmental Health Division (SJCEHD), for soil contamination <br /> Street, Escalon, California (Figure 1). <br /> ge tanks were removed from the project site by <br /> On April 17, <br /> 1991, six underground (u/g) starap diesel tank, two 2,000 gallon <br /> RESNA Industries. The ulg <br /> tanks consisted of one 550 ganon and one 350 gallon <br /> one 10,000 gasoline tank, <br /> gasoline tanks, one 4,000 gallon gasoline tank, uidelines and analyzed <br /> cordance with SJCEHD g <br /> waste oil tank. Soil samples were collected in aclens (ITEX}, Tam <br /> benzene, <br /> toluene, ethylbenzene, xylenes <br /> for one or more of the following; HG Total petroleum Hydrocarbons as Diesel <br /> Petroleum Hydrocarbons as Gasoline. (TPHG), tical i,aboratories Ina-, <br /> Organic Lead, and Metals, by Sequoia Analytical <br /> (TpHD), Total Lead, a <br /> Figure 2 shows the former locations o e <br /> utilizing appropriate EPA and DHS methodologies. g <br /> Mks and Sampling points. The an results are summarized on Table 1. Laboratory data <br /> are included in Appendix I. The presence of elevated concentrations of hydrocarbons in <br /> sheets <br /> the soil samples collected from beneath the gasoline and diesel tanks indicated further <br /> cal extent of soil contamination at <br /> investigation was necessary to determine the lateral and verti <br /> the project site. <br /> re ortlworkplan for the investigation was submitted to the SJCEHD and Tthiie <br /> A preliminary p W CB on August, 14, 199 <br /> 1.Central Valley Regional Water Quality Control Board (R, Q ) laced into the Local UST <br /> workplan was approved with no modifications and the project was p <br /> Oversight Program by the SJCEHD on September 16, 1991. <br /> 2,0 BACKGROUND TECHhiICAL DATA <br /> 2,1 Flame and Address of Contact Person: <br /> Contact Person: Mrs. Margaret Ekholm <br /> 1211 Avenue "G" <br /> Sterling, IL 6108.1 <br /> EPR1205.TJL - <br /> _ ��strfw�4111]�li <br />