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1 <br /> a'''NiT, tl LIIEd�E_ Il <br /> ARTESIAN ENV1 RONMFNTAL CdCK'. ULC ��4141 S <br /> os, F EL-,' -- I Fid 2 2.3 <br /> j <br /> Date December 15, 1993 <br />' Quarterly Groundwater Monitoring <br /> Sampled November 23, 1993 <br /> 1045 W Charter Way <br /> Stockton, California <br />' Project No 040-001-11 <br /> Prepared for <br />' Mr Dante John Nomelhni <br /> Nomellim Construction Company <br /> P O Box 1528 <br /> Stockton, California 95201 <br />' This report presents the results of the quarterly groundwater monitoring well <br /> sampling, performed on November 23, 1993 by Artesian Environmental Consultants <br /> (Artesian) at the subject site (Figures 1 and 2) The site history is summarized in <br /> 1 Appendix A <br /> SITE DESCRIPTION <br /> The site is located at 1045 West Charter Way, in Stockton, California A site location <br /> map is presented in Figure I A map showing the site structure and boring locations <br />' is presented in Figure 2 The property is located in an industrial area <br />' GROUNDWATER SAMPLING <br /> On November 23, 1993, Artesian staff measured depth to water for six groundwater <br /> monitoring wells designated MW-1 through MW-6 Monitor wells MW-4, MW-5 <br />' and MW-6 were purged and sampled according to a schedule approved by Ms Linda <br /> Turkatte of the San Joaquin County Department of Environmental Health All <br /> groundwater samples were collected according to the Artesian standard operating <br />' procedures (SOP) for groundwater sampling included in Appendix B Free product <br /> measurements were made with an oil-water interface probe <br /> All purged water was temporarily stored in DOT 17-H, 55-gallon containers pending <br /> analytical results The groundwater samples were shipped under chain-of-custody to <br /> Chromalab, Inc of San Ramon, California Chromalab is certified by the state of <br /> California to perform the required analyses <br /> GROUNDWATER FLOW <br /> Figure 3 shows the potentiometric surface of shallow groundwater based on depth-to- <br /> water measurements taken on November 23, 1993 The estimated groundwater <br /> gradient and flow direction was 0 009 vertical feet per horizontal foot to the east - <br /> northeast for the November 23, 1993 sampling event Groundwater-elevation data <br /> are presented in Table I <br /> 67 <br /> L `� <br />