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Pagel of 3 <br /> t �• <br /> Vicki McCartney [EH] <br /> From: Javad Masoudi Umasoudi@emscorp.us] <br /> Sent: Tuesday, May 20, 2014 9:48 AM <br /> To: Vicki McCartney [EH] <br /> Subject: RE: Groundwater Monitoring at 425 Larch Road in Tracy <br /> Expires: Thursday, August 28, 2014 12:00 AM <br /> Dear Vicki, <br /> There are 28 groundwater monitoring wells and 11 dual-phase extraction wells at this site. It is planned <br /> to abandon 14 un-necessary wells. EMS has scheduled monitoring and sampling the remaining 25 wells <br /> in order to update the groundwater data and conditions. These wells are MW-1, MW-2, MW-4, MW-5, <br /> MW-8, MW-9, MW-13, and MW-17 through MW-28, DPEI, DPE2, DPE3, DPE6, DPE8, and DPE11. <br /> EMS proposes to purge and sample the wells following Low-Flow/Micro-Purge Method. A pneumatic <br /> pump will be used for purging and sampling the wells. The pump intake for the shallow wells will be set <br /> at about 13 feet +/- bgs. The pump intake for the deep wells (MW-13 and MW-18) will be set at 35 feet <br /> bgs. In addition, three MTBE-impacted wells (DPE3, MW-17, and MW-19)will be purged and sampled <br /> following 3- to 5-well-water-volume method. One equipment blank per each sampling day and one <br /> duplicate sample per every 10 samples will be collected for QA/QC purposes. <br /> The water samples will be analyzed for TPH-g and VOCs including fuel oxygenates. The laboratory <br /> analysis of water samples will be performed by a laboratory licensed by the State of California <br /> Department of Health Services. <br /> Should you have any questions about this plan, please call me. <br /> Sincerely, <br /> S. Javad Masoudi, P.E. <br /> EnviroMonitoring Services, Inc. <br /> 23011 Moulton Parkway, Suite B-14 <br /> Laguna Hills, CA 92653 <br /> Ph: (949) 768-6210 <br /> Fax: (949) 770-8128 <br /> From: Vicki McCartney [EH] [mailto:vmccartney@sjcehd.com] <br /> Sent: Monday, May 19, 2014 4:28 PM <br /> To: Javad Masoudi <br /> Subject: RE: Groundwater Monitoring at 425 Larch Road in Tracy <br /> Javad, <br /> Thank you for the notification of the sampling event. Will you please provide a list of the wells that you plan to <br /> sample? <br /> Vicki McCartney, Senior REHS <br /> San Joaquin County <br /> Environmental Health Department <br /> 1868 East Hazelton Avenue <br /> 5/20/2014 <br />