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' TABLE 1 (CONTINUED) <br /> MONITORING WELL ELEVATIONS AND LIQUID LEVEL DATA <br /> 1399 EAST YOSFMn"F,MANTECA,CALIFORNIA <br /> (Ail messurernents m feet) <br /> Reference Depth to Groundwater Well <br /> ' <br /> Well No Date Elevation Groundwater' Elevation Depth <br /> (top of casing)' <br /> MW-3 05/23/89+ 41 27* 2681 1446 <br /> 06/16/89+ 2734 1393 <br /> 06/28/90+ 2711 1416 <br /> 08/27/90+ 2538 1589 <br /> ' <br /> 02/01/91 2678 1449 <br /> 02/27/91 2659 1468 <br /> 04/01/91 2563 1564 <br /> ' 04/23/91 2699 1428 <br /> 05/28/91 27 68 1359 <br /> 06/26/91 41 03** 2719 1384 <br /> 07/22/91 2694 1409 <br /> ' 08/30/91 2599 1504 <br /> 09/24/91 2570 1533 <br /> 10/21/91 2540 1563 <br /> ' 11/21/91 2440 1663 <br /> 12/19/91 2439 1664 <br /> 01/17/92 2436 1667 3534 <br /> ' MW-4 06/26/91 40 44** 2664 1380 <br /> 07/22/91 2641 1403 <br /> 08/30/91 2553 1491 <br /> 09/24/91 2526 1518 <br /> 10/21/91 2494 1550 <br /> 11/21/91 2389 1655 <br /> ' 12/19/91 2387 1657 <br /> 01/17/92 23 85 1659 3470 <br /> MW-5 06/26/91 40 62** 2673 1389 <br /> 07/22/91 2647 1415 <br /> 08/30/91 2556 1506 <br /> 09/24/91 2531 1531 <br /> ' 10/21/91 2499 1563 <br /> 11/21/91 2395 1667 <br /> 12/19/91 2394 1668 <br /> 01/17/92 1 1 2391 1671 3419 <br /> NOTES = 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 /> + Water level data observed by previous consultants <br /> *** MW-1 B Constructed In June 1991 by over-coring MW-1A <br /> Aegis Environmental Inc <br /> March 16 1992 <br /> 1 <br />