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Groundwater Treatment Plants <br /> DDJC-Sharpe April 1.999 RPM Meeting <br /> NPDES PERMIT COMPLIANCE -RWQCB LETTER (17 March 1999) • <br /> • Laboratory reviewed Mercury data to a limit of 0.2µg/L. One sample <br /> had a detection at 0.3 µg/L in February 1999. <br /> • Mercury is not a COC in the ROD. <br /> • Currently evaluating the practicality of modifying the method to lower <br /> the reporting limit . <br /> U.S. Army Corps <br /> of Engineers <br /> Engineering and <br /> __ Support Center,Huntsville <br />