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Page 10 <br /> Report: Groundwater-quality Monitoring June 23-28,2005, 7500 West Eleventh Street, Tracy, CA. � � <br /> of diesel and asoline in the sample of <br /> in the same ratio as the coat well <br /> on Maz h 9, 2005 They were, respectively, 18,000 <br /> groundwater recovered from that well on <br /> -r � <br /> µg1 15 L. See Table 2.) <br /> Land ,000 µg1 <br /> -7 is'. <br /> Thus, the estimated specific gravity of the floating product in well MW <br /> PF =0.79 <br /> he due to the presence of floating product <br /> elevation of the water table <br /> <= The depression in t <br /> is given by: <br /> W=T (Qv IPW) (Equation 1) <br /> Where: <br /> = the depression of the water table <br /> W <br /> ` =} T = the thickness of floating product in the monitoring well <br /> = the specific gravity of the groundwater <br /> ; { <br /> _ <br /> roduct <br /> Pp <br /> the specific gravity of the floating p <br /> �= <' <br /> d in well MW-7 on June 20, 2005: <br /> Thus,in the case of the floating product measure <br /> F-.- <br /> W=0.02(0.7911-0)= 0.02 ft. <br /> 2the elevation of the <br /> Accordingly, when drawing the contours shown on Figure , depth to <br /> group <br /> dwater in well MW-7 was adjusted <br /> fl. by 0.02 ft. based on an assumed <br /> her than that actually measured. <br /> groundwater 0.02 higher <br /> to date on which the depths to groundwater in the <br /> In the period from February 24, 2005, groundwater the table in to <br /> monitoring wells were last measured, to e near07 o e' aquiferbeneath the site rose <br /> majority of wells that are screened m thaquifers and well screen <br /> See Figur es 4 through 9 for <br /> between 0.08 $. and 0.64 on previous occasions, the rise in the groundwater table <br /> intervals.) As has been observedp was somewhat <br /> n the wells in the approximate southern half offt e well monitored area. In the <br /> observed i <br /> Beater than the rise observed in the northern ha o <br /> Morin wells that are screened in the first aquifer 12A isthepiezometric head the <br /> ro rose, on <br /> mom g Monitoring <br /> surface aquifer (i.e., Monitoring Wells MW-3A and ' the <br /> =' e b 0.53 ft. In the deepest aquifer that is monitored <br /> which nddicates acre recovery <br /> from the <br /> average, y 2.27 ft., <br /> = Well MW-3B), the p <br /> iezometnc head rose by <br /> usual fall of 3.0 ft. that occurred between December 2004 and February 2005 <br /> .:, un <br /> general depths to groundwater in the groundwater-quality <br /> I The observed changes in the g and June 2005 reflect to fact <br /> monitoring wells that were observed between February <br /> sic <br /> r <br />