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TABLE 1 <br /> MONITORING WELL ELEVATION$ AND LIQUID LEVEL DATA <br /> 1399 EAST Y05EMAfTE,MANTECA,CALff;0MIA <br /> (All nvmmurenvints in feet) <br /> ' Reference Depth to Groundwater Well <br /> Well No Date Elevation Groundwater' Elevation Depth <br /> (top of casing)' <br /> ' MW-1 05/23/89+ 40 38* 2593 1445 <br /> 06/16/89+ 2645 1393 <br /> MW-1A 06/28/90+ 40 13* 2593 1420 <br /> 08/27/90+ 2420 1593 <br /> 02/01/91 2559 1454 <br /> ' 02/27/91 2541 1472 <br /> 04/01/91 2447 1566 <br /> 04/23/91 2583 1430 <br /> 05/28/91 2650 1363 <br /> ' MW-1 B*** 06/26/91 40 04** 2615 1389 <br /> 07/22/91 2589 1415 <br /> ' 08/30/91 2498 1506 <br /> 09/24/91 2468 1536 <br /> 10/21/91 2438 1566 <br /> 11/21/91 2335 1669 <br /> 12/19/91 2334 1670 <br /> 01/17/92 2331 1673 3189 <br /> MW-2 05/23/89+ 40 99* 2545 1554 <br /> 06/16/89+ 2704 1395 <br /> 06/28/90+ 2678 1421 <br /> ' 08/27/90+ 2504 1595 <br /> 02/01/91 2644 1455 <br /> 02/27/91 2628 1471 <br /> 04/01/91 2534 1565 <br /> 04/23/91 2669 1430 <br /> 05/28/91 2739 1360 <br /> 06/26/91 40 74** 2688 1386 <br /> ' 07/22/91 2661 1413 <br /> 08/30/91 2569 1505 <br /> 09/24/91 2541 1533 <br /> 10/21/91 2509 1565 <br /> 11/21/91 2407 1667 <br /> 12/39/91 2408 1666 <br /> 01/17/92 2403 1671 3390 <br /> NOTES 1 = Measurement and reference elevation taken from notch/mark on top north <br /> side of well casing <br /> 2 - Elevation referenced to USC&GC bench mark C-958 <br /> ' Well Depth Measurement from top of casing to bottom of well <br /> * Top of PVC casing (feet above mean sea level)as surveyed by previous <br /> consultants <br /> ** = Top of PVC (feet above mean sea level)Tom Morrow, Inc Survey,6/91 <br /> t = Water level data observed by previous consultants <br /> *R* = MW-18 Constructed in June 1991 by over-coring MW-1A <br /> ' Aegis Environmental Inc <br /> March 16 1992 <br />