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Table 1 - Groundwater Monitoring Well Construction Details <br /> Newark Group, Inc. Dopaco Area Case#3 <br /> 800 West Church Street, Stockton, California <br /> Total Boring Total Well Depth of Screened Sand Pack Bentonite <br /> Well Depth Depth Interval Interval Seal Depth to GW <br /> Identification (ft bgs) (ft bgs) (ft bgs) (ft bgs) (ft bgs) TOC Elevation (ft TOC) <br /> DMW-1 40 40 30-40 28-40 26-28 9.92 MSL 12.44 <br /> DMW-3 40 40 30-40 28-40 26-28 5.81 MSL 11.63 <br /> DMW-4 40 40 30-40 28-40 26-28 10.17 MSL 12.64 <br /> DMW-5A 45 43 33-43 31-45 29-31 11.05 NAVD88 14.27 <br /> DMW-5B 80 67 57-67 55 72.5 53-55 6.75 NAVD88 10.36 <br /> DMW-6A 42.5 42 32-42 30-42.5 26-30 6.75 NAVD88 11.68 <br /> DMW-6B 71 65.5 65.5-65.5 53-71 49-53 8.53 NAVD88 11.98 <br /> DMW-6WT 30 24 9-24 7-30 5-7 8.62 NAVD88 11.80 <br /> Notes: <br /> All wells are Schedule 40, 2-inch-diameter, polyvinyl chloride (PVC) casing with 0.020-inch slot screen (except wells <br /> DMW-6A, DMW-6B, DMW-6WT which have 0.010-inch screen) <br /> The sand pack consisted of#3 Cemex sand. <br /> bgs = below ground surface <br /> ft= feet <br /> GW= Groundwater, as measured in March 2022 (AECOM 2022) <br /> MSL= feet above mean sea level (United States Geological Survey Datum) <br /> TOC = below top of PVC well casing (i.e., measuring point) <br /> NAVD88 = feet relative to North American Vertical Datum of 1988 <br /> 1/1 <br />