Laserfiche WebLink
�u Quik Stop Station No 039 March 26, 2002 <br /> Stockton. alifornia Quartcrly Groundwater.Monitoring Report <br /> (ETBE), tert-amyl methyl (TAME), tert-butanol, methanol and ethanol, and the lead <br /> scavengers 1,2-dichloroethane and 1,2-dibromoethane by Environmental Protection Agency <br /> (EPA) Method 8260B <br /> Results <br /> Depth-to-groundwater measurements were subtracted from the surveyed TOC elevations to <br /> calculate static groundwater elevations Groundwater elevation data was used to construct a <br /> groundwater contour map (Figure 2) <br /> Groundwater analytical results are summarized in Table I Groundwater analytical reports <br /> and the COC document are contained in Attachment C On 20 February 2002, Horizon <br /> transported the monitoring well purge water to InStrat, Inc in Rio Vista, California for <br /> disposal A payment receipt for acceptance of the purge water is contained in Attachment D <br /> Recommendations <br /> Historical groundwater analytical results indicated no reportable benzene or MTBE <br /> concentrations in the three site wells for the past six quarters In preparation for closure <br /> requirements, Horizon shall analyze all groundwater samples for full list of analytes for one <br /> additional quarter <br /> Report Distribution <br /> We recommend a copy of this report be forwarded to <br /> Mr Michael J Infurna <br /> Environmental Health Division <br /> San Joaquin County Public Health Services <br /> P O Box 2009 <br /> Stockton, California 95201 <br /> Mr Gordon Boggs <br /> California Regional Water Quality Control Board <br /> Central Valley Region <br /> 3443 Routier Road, Suite A <br /> Sacramento, California 95827-3098 <br /> 7039gmr02Q1 doc <br /> 703943 2 HORIZON ENVIRONMENTAL INC. <br />