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k4 KLEINFELDER <br /> i <br /> 5 MONITORING RESULTS <br /> The depth to groundwater was measured in each monitoring well included in this event. The <br /> depth to groundwater data was converted to elevation in reference to mean sea level for the <br /> calculation of groundwater flow direction and gradient. <br /> The 12 groundwater samples were submitted under chain-of-custody procedures to Sequoia <br /> Analytical Laboratories of Sacramento, California. Table 2 is a summary of the analytical results <br /> for groundwater. For a complete report of the analytical results please refer to the chain-of- <br /> custody forms and laboratory analytical reports included in Appendix C. <br /> 5.1. WATER LEVELS <br /> On August 12, 2002, the 12 monitoring wells were sampled and sounded for depth to <br /> groundwater. The depth to groundwater ranged from 43.52 feet below the top of well casing <br /> (T.O.C.) to 52.97 feet below T.O.C. <br /> The groundwater elevations ranged from —32.67 feet msl to —33.16 feet msl at the site. The <br /> } groundwater gradient was calculated to be relatively flat at 0.0002 feet/foot, and a general <br /> direction of flow to the south. Plate 3 shows the interpreted groundwater contours. The reported <br /> groundwater flow direction has been consistent. with the historical data collected at the site. <br /> Please refer to Table 1 for the recorded groundwater elevations on August 12, 2002, and past <br /> monitoring events. <br /> i . <br /> 12280.MON/ST02R519 Page 8 of 14 <br /> 1121102,KIcinfelder,me September 19,2002 <br />