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GROUND WATER LEVEL MEASUREMENTS B-8 <br /> BEACON STATION NO 695 <br /> 900 SOUTH CHEROKEE LANE <br /> LODI, CALIFORNIA <br /> Monitoring Top of Casing Depth to Ground Water <br /> Well Date Elevation (ft)a Water(ft)b Elevation Comments <br /> MW-25 12/14/88 5051 5761 -710 <br /> 03/13/89 5652 -601 <br /> 06/19/89 5793 -742 <br /> 12/14/89 6054 -1003 <br /> 03122/90 59 15 -864 <br /> 06/07/90 6133 -1082 <br /> 10/09/90 6738 -1687 <br /> 12/18/90 Dry <br /> 06/19/91 6601 -1550 No Sheen or Free Product <br /> 09/20/91 Dry <br /> 12/31/91 6628 -1577 No Sheen or Free Product <br /> 03/04/92 6464 -1413 No Sheen or Free Product <br /> 06/17/92 6664 -16 13 No Sheen or Free Product <br /> 09/17/92 Dry <br /> MW-27 06/19/91 53 17 6851 -1534 No Sheen or Free Product <br /> 0628/91 6904 -1587 No Sheen or Free Product <br /> 0920/91 7090 -1773 No Sheen or Free Product <br /> 12/31/91 6999 -1582 No Screen or Free Product <br /> 03/04/92 6733 -1416 No Sheen or Free Product <br /> 06/17/92 6897 -1580 No Sheen or Free Product <br /> 09/17/92 7130 -18 13 No Sheen or Free Product <br /> RW-1 06/19/91 5251 6795 -1544 No Sheen or Free Product <br /> 0628/91 6846 -1595 No Sheen or Free Product <br /> 0920/91 70 16 -1765 No Sheen or Free Product <br /> 12/31/91 6820 -1569 No Sheen or Free Product <br /> 03/04/92 6656 -1405 No Sheen or Free Product <br /> 06/17/92 6831 -1580 No Sheen or Free Product <br /> 09/17/92 6969 -17 18 No Sheen or Free Product <br /> a Top of well casings risers surveyed relative to mean sea level (MSL) from City Benchmark No 374, with an elevation <br /> of 51 70 ft above MSL (Figure 2) <br /> b Measured from surveyed reference point on top of riser to ground water surface <br /> C Ground water data corrected for free product thickness by Du Pont Environmental Remedrahon Services using a 0 8 density <br /> ratio of ground water to petroleum product <br /> Note Ground water level data prior to 6119191 not collected by Delta <br />