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Meeting Notes <br /> DDJC-Tracy Remedial Project Managers Meeting for <br /> 2010 Groundwater Sampling Recommendations <br /> HDR I e'M,2365 Iron Point Road, Suite 300,Folsom,CA <br /> Meeting Date: 4 February 2010 <br /> Location: HDR I e2M,2365 Iron Point Road, Suite 300,Folsom,CA <br /> Attendees: Maurice Benson— DESJC <br /> Phillip Ramsey—USEPA <br /> Jim Brownell—RWCQB <br /> Peter MacNicholl - DTSC <br /> Charlie O'Neill—HDR I e 2 <br /> Steven Herrera HDR I eZM <br /> David Kremer—HDR I e 2 <br /> 1. 2010 Groundwater Monitoring Program <br /> • Groundwater Sampling Recommendations—On 21 December 2009, DESJC <br /> submitted the Draft 2009 Annual Monitoring Report(4Q08-3Q09)(Annual Report) <br /> to the RPMs. Using the extraction well and monitoring well decision logic,the <br /> document presents recommendations to modify the sampling frequency at 67 wells at <br /> DDJC-Tracy. The proposed modifications will affect the 1Q 10 field sampling event. <br /> DESJC requested this meeting with the RPMs to discuss these recommendations. A <br /> handout summarizing the sampling modifications was distributed to the RPMs prior <br /> to this meeting to facilitate the review process. <br /> • Meeting Summary—Modifications to the groundwater monitoring program were <br /> based on specific wells having met the criteria in either the Extraction Well or <br /> Monitoring Well Decision Logic Flowchart that determine the appropriate sampling <br /> frequency. The modifications to the 2010 groundwater monitoring program as agreed <br /> upon in the meeting of 4 February 2010 are.presented below. <br /> a. EW003,EW014A, EW022A, EW029B, EW030C, LM004AU, LM040B, <br /> LM092CC, LM095AU, and LM 167AU-Revised sample frequency to not <br /> recommended for sampling. <br /> b. EW009B—Restarted in November 2009 due to elevated rebound <br /> concentrations. Sampling frequency revised from quarterly rebound <br /> monitoring to semi-annual operating well sampling frequency. <br /> c. EW021A— Scheduled for shutdown in 1Q10. Sampling frequency revised <br /> from semi-annual operating well sampling frequency to quarterly rebound <br /> monitoring. <br /> d. LM029B and LM062AU—Revised sample frequency from yearly to twice <br /> a year. <br /> e. LM041 B—Revised from not sampled(as long as well LM040B is being <br /> sampled)to sampled twice a year for VOCs for one year since well <br />