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TAR 1 <br /> LIQUID LEVEL DATA <br /> 1399 EAST YOSEMITE.MANTECA.CAUFORNIA <br /> {Af measurements In feet) <br /> I <br /> Reference Product Depth to Depth to Groundwater Well <br /> Well No Date Elevation Thickness Groundwater' Product' Elevation Depth <br /> (top of casing)' <br /> MW-1B 04/09/92 40 04** <0 01++ 24.32 — 15.72 <br /> 07/27/92 <0 01++ 2481 — 1523 --- <br /> 10/21/92 <0.01++ 2381 — 1623 — <br /> 01/19/93 <0 01++ 2271 — 1733 --- <br /> 04/30/93 — 21.22 — 18 92 — <br /> 07/07/93 40 14*** -- 2247 -- 1757 31.85 <br /> MW-2 04/09/92 — 2507 — 15.67 33.81 <br /> 07/27/92 40 74** --- 2556 -- 1518 3390 <br /> 10/21/92 --- 2461 --- 16.13 3389 <br /> 01/19/93 --- 2345 -- 1729 3388 <br /> 04/30/93 — 21 67 — 1907 — <br /> 07/07/93 — 2308 — 17.66 33.9 <br /> NOTES ;' = Top of PVC casing(feet above mean sea level)as surveyed by Aegis <br /> ++ = Sheen of free product observed in well <br /> 1 Measurement and reference elevation taken from marls on top north side of well casing <br /> 2 = Elevation referenced to mean sea level <br /> = Not measured/not observed <br /> Well Depth = Measurement from top of casing to bottom of well <br /> Top of repaired casing(feet above mean sea level) as surveyed by Aegis <br /> Aegis Environmental,Inc <br /> 90-09eIAugust11 1993 <br />