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TPHg,benzene,toluene,ethylbenzene,and xylenes concentrations in well MW-3 decreased significantly,and TPHg, <br /> benzene,ethylbenzene,xylenes,and MtBE concentrations in wells MW-4 and MW-5 increased Groundwater <br /> • elevations decreased by an average of 2 74 feet Groundwater flow was to the east at an approximate gradient of <br /> 0 022 ft/ft <br /> This report presents our understanding of existing conditions at the subject site The conclusions contained herein <br /> are based on the analytical results, and professional judgment in accordance with current standards of professional <br /> practice,no other warranty is expressed or implied SECOR assumes no responsibility for exploratory borings or <br /> data reported by other consultants or contractors <br /> ATTACHMENTS: <br /> • Table 1 -Groundwater Elevation and Analytical Data <br /> • Table 2-Fuel Oxygenates Analytical Data <br /> • Table 3 -Volatile Organic Compounds Analytical Data <br /> • Table 4-Groundwater Gradient Data <br /> • Figure 1 -Groundwater Elevation Contour Map <br /> • Figure 2-Groundwater Concentration Map <br /> • Attachment A-Field and Laboratory Procedures <br /> • Attachment B -Certified Laboratory Analytical Reports, Cham-of-Custody Documentation,and Field <br /> Data Sheets <br /> cc Mr Marty Hartzell,Regional Water Quality Control Board-Central Valley Region(RWQCB-CVR) <br /> Ms Lan Duncan,SJCEHD <br /> . Ms Kitty Walker,City of Stockton <br /> Ms Megan Cambridge,Department of Toxic Substance Control(DTSC) <br />