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Tracy Marine -4 - October 31, 2011 <br /> UPDATED, October 2011, source area monitoring well MW-7 has historically had elevated <br /> concentrations of residual hydrocarbons in groundwater. However, after 11 years of monitoring, <br /> the groundwater plume is shrinking in size and concentration. Analytical data indicate that <br /> WQOs have been achieved in down gradient wells and groundwater within the source area has <br /> nearly achieved water quality objectives. The Fund recommends that the San Joaquin County <br /> LOP review this site for closure. -- <br /> to/3i/mai ` �2�✓� ' �D�3/ l/ <br /> Kirk tarson, P.G. Date Robert Trommer, C.H.G. Date <br /> Engineering Geologist Senior Engineering Geologist <br /> Technical Review Unit Chief, Technical Review Unit 'r <br /> (916) 341-5663 (916) 341-5684 ; <br />