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- i ����� <br /> RVICE Working To Restore Nature <br /> 1710 Main Street 1: 16 <br /> Fscalon, CA 95320 _ <br /> Phone (209) 838-3507 <br /> FAX (209) 838-3509 <br /> November 9, 1994 ' , f� , <br /> LJ <br /> 38009.10 <br /> Mr. James Escobar <br /> Department of Public Works ✓ f J <br /> City Hall <br /> Stockton, Cahforma 95202-1997 <br /> Subject. Third Quarter 1994 Status Report, Fire Engine Company No. 2, 110 West <br /> Sonora Street, Stockton, California <br /> Mr Escobar: <br /> This letter report summarizes the results of the environmental investigation conducted during <br /> the third quarter 1994 by RESNA Industries Inc. (RESNA) at the subject site (Plate 1) The <br /> work was conducted at the request of the City of Stockton, Department of Pubhc Works (City <br /> of Stockton) and included measuring depths to groundwater, collecting groundwater samples <br /> from the wells for subjective and laboratory analyses, and evaluating the groundwater gradient <br /> and direction of groundwater flow beneath the site <br /> BACKGROUND <br /> In April 1987, a 1,000-gallon unleaded gasoline tank was removed and residual hydrocarbons <br /> were detected in the soil remaining under the former tank In April 1992, a 250-gallon waste- <br /> oil tank was removed. The locations of the former and existing tanks are shown on Plate 2. <br /> In 1988, The City of Stockton contracted RESNA to conduct a subsurface investigation to <br /> assess the extent of residual hydrocarbons in soil. The investigation performed between 1958 <br /> and 1993 included drilling seventeen soil borings, installing five groundwater monitoring <br /> wells, five vapor extraction wells, one piezometer, and one recovery well, collecting and <br /> analyzing soil and groundwater samples for hydrocarbons, and performing a groundwater <br /> aquifer test and a soil vapor extraction test. <br /> 38009-1013QSR94 doc 1 <br />