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== FILE COPY <br /> From Science to Solutions <br /> HPP-BTR OVP MP#215.5 <br /> Alden Park <br /> Reports <br /> Accession#06102.20110720.001 <br /> August 1, 2011 <br /> Michael Oliphant <br /> En <br /> Environmental Project Manager <br /> Chevron Environmental Management Company <br /> P.O. Box 6012 O�� 2 <br /> San Ramon, California 94583 <br /> Subject: Well Vault Replacement Work Plan <br /> Alden Park <br /> Tracy, California <br /> Dear Mr. Oliphant: <br /> SAIC Energy, Environment& Infrastructure, LLC (SAIC),prepared this work plan for <br /> the Alden Park(Site) at the request of Chevron Environmental Management Company <br /> (CEMC). The Site is a former Bunker C fuel-oil reservoir that was associated with the <br /> former Old Valley Pipeline (OVP) system. The reservoir was emptied, cleaned, and <br /> decommissioned after OVP operations ceased in 1957. The Site is currently used as a <br /> public park, and is surrounded by a residential neighborhood. <br /> PROPOSED SCOPE OF WORK <br /> Monitoring wells at the Site were installed during the 1987 site investigations activities, <br /> and were completed with non-standard well vaults that are not water tight and are less <br /> secure than standard monitoring well vaults (see Attachment A, Photographs 1 and 2). <br /> SAIC proposes to perform maintenance on two wells and replace 14 well vaults with <br /> standard Emco-Wheaton monitoring well vaults (see Attachment B). SAIC will also <br /> repair damage to the MW-6 well casing. All work will be conducted in accordance with <br /> San Joaquin County well standards.' All the well locations at the Site are shown on <br /> Figure 1, with the well vault replacement locations indicated. <br /> In order to execute the scope of work, SAIC proposes to conduct the following activities: <br /> • Mark well vault replacement locations for Underground Service Alert(USA), and <br /> notify USA at least 48 hours in advance, as required by law. <br /> • Subcontract Cruz Brothers Locators, a private utility locator, to clear the site for <br /> any potential overhead and underground hazards and/or other potential obstacles. <br /> I. San Joaquin County,2005. San Joaquin County Well Standards(San Joaquin County Ordinance Code Section 9- <br /> 1115.6). February. <br /> SAIC Energy,Environment B Infrastructure,LLC <br /> 3800 Walt Avenue I Suite#210 1 Sacramento,CA 95821 lel:(916)974-8800 1 fax:(916)979-3735 0if imlfandiC O P Y <br /> a <br /> 1 <br />