Laserfiche WebLink
s <br /> } ENUIRONtdS H <br /> r f, <br /> IENTALTECHNOLOGIES CORPORATION [ r p tp ° <br /> 40 <br /> November 8, 1996 <br /> 94367 <br /> Ms Linda Turkatte <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> P O Box 388 <br /> Stockton, CA 95201-0388 <br /> Subject Fourth Quarter 1996 Status Report, Fire Engine Company No 2, 110 West <br /> Sonora Street, Stockton, Califorma <br /> Dear Ms Turkatte <br /> This letter report summarizes the results of the environmental investigation conducted during the <br /> fourth quarter 1996 by Smith Technology Corporation at the subject site (Figure 1) The work <br /> was conducted at the request of the City of Stockton, Department of Public Works (City of <br /> iStockton) and included measuring depths to groundwater, collecting groundwater samples from <br /> the wells for subjective and laboratory analyses, and evaluating the groundwater gradient and <br /> 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 oil <br /> tank was removed The locations of the former and existing tanks are shown on Figure 2 In <br /> 1988, The City of Stockton contracted RESNA Industries Inc to conduct a subsurface <br /> investigation to assess the extent of residual hydrocarbons in soil The investigation included <br /> drilling seventeen soil borings, installing five groundwater monitoring wells, five vapor extraction <br /> wells, one piezometer, and one recovery well, collecting and analyzing soil and groundwater <br /> samples, monitoring fluid levels in the wells, performing a groundwater aquifer test, and <br /> performing a soil vapor extraction test <br /> GROUNDWATER MONITORING <br /> On October 21, 1996, a Smith Technology technician measured the water levels in wells MW-1 <br /> through MW-5, well RW-1, and piezometer PZ-1 No floating product was noted in any site <br /> well Groundwater monitoring data are summarized in Table 1 <br /> W 194367194367-1014QSR96doc 1 <br /> 1260 Graphics Drive - Modesto,CA 95351-1502 (209)579-2221 Fax(209)579-2225 <br /> Engineering Consulting - Remediation Construction <br />