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Lisa Medina [EH] <br /> From: Michael Chendorain <mchendorain@Langan.com> <br /> Sent: Thursday, March 15, 2012 12:39 PM <br /> To: Lisa Medina [EH] <br /> Cc: Philip Smith;Joel S. Levy Qlevy@hsmlaw.com) <br /> Subject: Request to ammend work plans for 434 and 420 N. Madision Street site in Stockton, <br /> California <br /> Lisa, <br /> Per our discussion on 12 March 2012, the following is in response to letters from the San Joaquin County Environmental <br /> Health Department(SJCEHD) dated 1 February 2012 for the properties located at 423 N. Madison Street, Stockton, CA <br /> (Site Codes: 1163457 and 1564) and 420 N. Madison Street, Stockton, CA(Site Code: 1513). <br /> Our client, the Stockton Arena Hotel and Conference Center, LLC would like to request the following: <br /> • In response to the SJCEHD's request for a third cluster of two monitoring wells for the 423 N. Madison Street, <br /> Stockton, CA site, it is our opinion that the additional wells are not necessary. We base this on the proximity of <br /> the site to the adjacent 420 Madison Street Site, also owned by the the Stockton Arena Hotel. At the 420 <br /> Madison Street Site, a work plan has already been approved for the installation of three shallow groundwater <br /> monitoring wells. These wells will allow groundwater gradient and direction estimations to be made in connection <br /> with the 423 Madison Street Site. Further, historical reports for the 423 N. Madison Street Site indicate <br /> concentrations of contaminants of concern, principally total petroleum hydrocarbons (TPH), were decreasing in <br /> groundwater in both the shallow and deep aquifers. It is anticipated that the installation and monitoring of the <br /> currently proposed 2-well clusters will confirm the historical trend. <br /> • Our client would also like to request a phased implementation of the submitted work plans for these 2 <br /> Sites. During 2012, we would like to implement the work plan for one site, followed by the second work plan <br /> during 2013. This phased approach will better allow our client to manage costs related to well installation <br /> activities (the most costly component of both work plans). <br /> If these requests are agreeable to the SJCEHD, we will provide a letter detailing the scope of work to the SJCEHD <br /> for your approval. <br /> Please contact me if you have any comments or questions. <br /> Thanks, <br /> Mlke <br /> Michael D. Chendorain, P.E. <br /> Senior Project Engineer <br /> Treadwell & Rollo I A Langan Company <br /> Direct: 415.955.5251 <br /> Langan Engineering & Environmental Services <br /> Phone: 415.955.5200 Fax: 415.955.5201 <br /> 555 Montgomery Street, Suite 1300 <br /> San Francisco, California 94111 <br /> www.lanaan.com <br /> NEW JERSEY PENNSYLVANIA NEW YORK CONNECTICUT FLORIDA VIRGINIA CALIFORNIA <br /> ABU DHABI DUBAI ATHENS DOHA ISTANBUL <br /> Please consider the environment before printing this e-mail <br /> This electronic transmission may contain confidential, proprietary or privileged information. No confidentiality <br /> or privilege is intended to be waived or lost by erroneous transmission of this message. If you receive this <br /> message in error, please notify the sender immediately by return email and delete this message from your <br /> system. Disclosure, use, distribution or copying of this message, any attachments thereto or their contents is <br /> strictly prohibited. <br /> i <br />