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August 2001 Quarterly Ground Water Monitoring <br /> 1645 Cherokee Lane,Stockton,CA <br />' Hydro-Environmental Technologies,Inc <br />' Table 1: Ground Water Table Measurements <br /> Central California Traction Company,Stockton CA <br />' Monitoring Top of Monitoring Depth to GW Table Temp. pH Conductivity <br /> Well No Casing Date GW Elevation (°F) (units) (Aslcm) <br /> Elevation 00 (ft AMSL) <br />' (ft AMSL) <br /> MW-1 1794 9/1/2000 4620 -2826 691 528 1865 <br /> 5/1/2001 4361 -2567 676 5 15 1195 <br /> 7/23/2001 4872 -3078 733 611 1308 <br /> ' MW-2 1835 9/1/2000 4660 -2825 687 52 181 <br /> 5/1/2001 4400 -2565 686 615 1166 <br /> 7/23/2001 4898 -3063 NA NA NA <br /> ' MW-3 1865 9/1/2000 4681 -28 16 698 501 202 <br /> 5/1/2001 4429 -2564 669 501 1140 <br /> 7/23/2001 4892 -3027 NA NA NA <br /> Notes <br /> NA Not available since the wells were dry <br /> Rinsate water and purged ground water were placed to 55-gallon drums north of the north building, in a <br /> ' secured area <br /> ' 2.2 l Ground Water Table Measurements <br /> Based on the current monitoring well installation investigation, ground water in the unconfined to semi- <br /> confined zone ranged from approximately —30 78 feet above mean sea level (AMSL) to —30 27 feet <br /> AMSL Groundwater was calculated with flow to the northwest at a gradient of 0 0182 feet per foot <br /> ' Table 2: Ground Water Table Gradient and Direction <br /> Central California Traction Company,Stockton CA <br /> ' Monitoring Date Ground Water Gradient Ground Water Flow Direction <br /> 9/1/2000 0 011 feet/foot Northwest <br /> ' 5/1/2001 0 0005 feet/foot Northeast <br /> 7/23/2001 0 0182 feet/foot Northwest <br /> 4 <br />