Laserfiche WebLink
I <br /> 3.0 GROUNDWATER FLOW DIRECTION <br />' Site groundwater elevations and flow direction were <br /> determined based on water level measurements taken from <br /> monitoring wells 6 , _7 , 10 , 11., 12, 13 and EW-1, October 1, <br /> 1992 (Table 10) . : Monitoring wells 1, 2 , 3 , 4 , 5 , 8 and"- 9 <br />' were dry, therefore, no measurement was obtainable. <br /> Based on these measurements, the groundwater flow direction <br />' was determined to be in a Southerly direction. A Kriging <br /> program was used to generate a groundwater gradient map, <br /> which has been included as Figure 3 . <br />' TABLE 11 <br /> GROUND WATER ELEVATION MEASUREMENTS <br /> (10-1-92 ) <br />' Reference Point Depth To Groundwater <br /> Date Well# Elevations Water Elevation <br /> 10-1-92 MW-6 52. 99' 60 .50' -7 .51 <br />' 10-1-92 MW-7 53 . 901 62 . 01" -8 . 11 <br /> 10-1-92 MW-10 53 . 21' 60 .94 ' -7 .73 <br /> 10-1-92 MW-11 52. 95' 61.41" -8 . 46 <br />' 10-1-92 MW-12 53 . 351 62. 28' -8 . 93 <br /> 10-1-92 MW-13 53. 36' 62.44 ' -9 . 08 <br /> 10-1-92 EW-1 53. 21' 61. 22' -8 . 01 <br /> 4.0 QUALITY ASSURANCE/QUALITY CONTROL <br /> All monitoring wells were purged and sampled using a new, <br /> sanitary, disposable bailer at all sampling points. . <br /> The depth to water was measured prior to sampling each <br /> monitoring well. Each well was then purged of a minimum of <br />' three well volumes, or until the temperature, conductivity <br /> and PH parameters had stabilized (Appendix B) . The wells <br /> were then allowed to recover to within 90% of their original <br /> water levels prior to sampling. <br /> IPurge water from the sampling activities is currently being <br /> stored on-site, in metal drums, for later treatment and/or <br /> disposal. <br /> The samples were carefully poured from the disposable bailer, <br /> into clean glass VOA'S provided by the laboratory. Care was <br /> taken to ensure that no air space existed in the vials, by <br /> inverting to check for bubbles . <br /> The samples were immediately placed on iced storage for <br /> delivery to Sherwood Labs Corporation, 8071 N. Lander Avenue, <br /> Hilmar, California. The samples were under no circumstances <br /> opened by anyone other than qualified laboratory personnel. <br /> The samples were analyzed within the sample life-span limits <br /> as set forth by EPA guidelines for the specific tests to be <br /> run. <br /> STE Project No. 4001 <br /> Page 7 <br />