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MW427A11.47 <br />EWNA93.66 <br />MW402A9.89 <br />MW403A9.59 <br />MW409A10.48 <br />MW413A2.19 <br />MW420A2.95 <br />MW422A9.15 <br />MW428A12.58 <br />MW430A10.83 <br />MW432A4.26 <br />MW438A2.65 <br />MW439A7.12 <br />MW441A11.76 <br />MW444A9.91MW445A7.08 <br />MW446A7.72MW453A7.82 <br />MW454A7.70 MW456A5.36 <br />MW457A8.76 <br />MW458A8.05 <br />MW459A7.70 <br />MW473A9.02 <br />MW475A6.16 <br />MW510A5.52 <br />EWNA5-0.99 <br />MW514A11.04 MW517A3.76 MW521A3.38 <br />EWA210.06 <br />EWA38.35 <br />EWA68.94 <br />EWA89.53 <br />EWA911.06 <br />DW0019.66DW00210.07 <br />DW003 2 <br />-0.72 <br />MW401A12.91 <br />MW416A5.28 <br />MW419A11.72 <br />MW421A5.74 <br />MW437A6.91 <br />MW460AB7.34 <br />MW462A8.68 <br />MW507A7.21 <br />MW512A6.5 <br />EWA1010.49 <br />EWA5-2.54 <br />DW00411.06 <br />MW477A5.84 <br />MW478A10.98 <br />IOW1A9.37 <br />MW443A9.18 <br />MW429A12.12 <br />MW440A7.97 <br />MW452A11.30 <br />MW455A8.74 <br />MW511A7.96 <br />EWA18.96 <br />MW479A6.32 <br />MW482A4.87 <br />MW484A5.58 <br />EWA79.74 <br />MW505A1.86 <br />MW508A6.29 <br />MW522A1.88 <br />MW417A6.86 MW423A6.84 <br />MW407A6.55 <br />MW431A9.64 <br />MW410A11.08 <br />MW425A10.84 <br />EWNA105.9 <br />EWNA44.55 <br />MW463A8.00 <br />MW442A7.89 <br />MW476A8.99 <br />EWCA14.59 <br />MW418AR8.41 <br />MW412A1.82 <br />MW415A7.33 <br />EWCAB21 <br />6.78 <br />MW481A4.15 <br />EWNA23.76 <br />EWNA34.35 <br />EWNA61.97 <br />MW531A5.81 <br />MW532A6.39 <br />MW488A2.63 <br />P5A8.15 <br />MW530A6.43 <br />MW470AR9.53 <br />MW495A7.68 <br />MW325A7.32 <br />MW326A7.23 <br />P21A12.40 <br />P22A12.04 <br />P23A12.06 <br />MW328A11.78 <br />MW329A11.37 <br />MW330A12.21 <br />MW540A6.99 MW541A6.65 <br />MW542A6.34 <br />P15A15.34 <br />P16A15.41P17A11.04 <br />P18A9.81 P19A11.80 P20A15.82 <br />P25A12.48 <br />P26A12.67 <br />P27A12.57 <br />EWA11 1 <br />8.64 <br />EWCA21 <br />7.73 <br />MW331A7.22 MW332A7.70 <br />MW309A8.44 <br />Central AreaPercolation PondCentral AreaPercolation Pond <br />Waste WaterTreatmentPlant Pond <br />Building240 Pond <br />Building240 Pond <br />Building404 Pond12 <br />10 <br />872 <br />10 <br />8 <br />65 111054312 <br />6 <br />1413 <br />6 <br />2 <br />2 <br />126 <br />0 1,000 <br />Scale in Feet <br />Potentiometric Surface Contours, Estimated Capture Zones, and COC Plumes, A Zone, 3Q19 <br />Groundwater Well Installation Work Plan Sharpe Army Depot, Lathrop, California Figure <br />11 <br />Legend <br />½Extraction Well <br />³Monitoring Well <br />!A Injection Observation Well <br />ç Piezometer <br />Approximate Groundwater Flow Direction <br />1 Groundwater Level Contour (feet msl) <br />CCl4 >0.5 µg/L <br />PCE >0.5 µg/L <br />TCE >5 µg/L <br />Sharpe BoundaryHorizontal Gradient Well Pair (3Q19) <br />Estimated Capture Zone <br />Notes:Water levels were measured on July 15 to 17, 2019.Extraction wells operating during water levelmeasurements are in bold type. <br />1Extraction wells EWA11, EWCA2, and EWCAB2 weretemporarily offline during water level measurements.The capture zones shown are based on 1Q19 water level data.Dashed plume line indicates uncertain extent or interpretation based only on hydropunch data.