Laserfiche WebLink
Ms Marla Guensler <br /> February 6, 1992 <br /> Page 2 <br /> TABLE 1 <br /> Ground Water Level Measurements <br /> Monitoring Depth to Ground Reference' Ground Water <br /> Well RALO� Water 00 Elevation (ft) Elevation (ft) <br /> MW-1 08/23/91 1639 195 -1444 <br /> 08/29/91 16.49 -1454 <br /> 12/13/91 1666 -1471 <br /> MW-2 08/23/91 1659 209 -1450 <br /> 08/29/91 1669 -14.60 <br /> 12/13/91 1681 -1472 <br /> MW-3 08/23/91 1515 052 -1463 <br /> 08/29/91 1526 -1474 <br /> 12/13/31 1540 -1488 <br /> a Reference points at the top of the well risers were surveyed relative to California Department of <br /> Transportation bench mark No 1618L, elevation = 0 728-feet above mean sea level <br /> Ground water monitoring wells MW-1 through MW-3 were sampled on December 13, 1991 Each <br /> well was purged prior to sampling by removing approximately three well volumes of water After <br /> purging and after the water levels were allowed to stabilize, a water sample was collected from each <br /> monitoring well using a clean plastic disposable bailer Ground water sampling procedures are <br /> described in Enclosure A <br /> Ground water samples collected from monitoring wells MW-1, MW-2, and MW-3 on <br /> December 13, 1991, were submitted to a state-certified laboratory for analysis of benzene, toluene, <br /> ethylbenzene, and xylenes (BTEX) and total petroleum hydrocarbons (TPH) as gasoline by <br /> U. S Environmental Protection Agency and California Department of Health Services approved <br /> methods Analytical results for ground water samples collected since August 23, 1991, are compiled <br /> in Table 2 Copies of the certified laboratory reports for the December 13, 1991, sampling event <br /> are included in Enclosure B <br />