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FROM : GETTLER-RYAN INC. PHONE NO. : 916 631 1317 Apr. 06 2000 09:47AM P3 <br />Proposed Revised Remedial Activity .Implementation Schedule - Former Chevron #9-5775, Lodi, CA <br />April 4, 2000 <br />at the same time under the same CalTrans permit. We do not know the date that the City will <br />perform this work, but development of the property is tentatively scheduled to begin in .lune 2000. <br />A vapor extraction pilot test will be initiated on April 5, 2000. GR received a permit to conduct the <br />pilot test from the San Joaquin Valley Unified Air Pollution Control District (SJVUAPCD) .on <br />March 31, 2000. The pilot test will consist of a VR Systems internal combustion engine that will <br />both extract and abate soil vapors. The pilot test will consist of approximately 8 to 10 hours of <br />vapor extraction tentatively scheduled for April 6,12,19, 26, and May 3, 2000. This is the maximum <br />amount of time allowed for a pilot test under SJVUAPCD regulations. This information will be <br />utilized in design of the permanent vapor extraction system. <br />GR is currently working with Westates/US Filter to finalize the design of the groundwater treatment <br />system. Final system configuration has not been determined. Without the final system design it is <br />not possible to submit applications for planning and building permit approval, request for power <br />service, etc. We anticipate that the final design for the treatment system will be. completed by April <br />15, and permit applications submitted by May 1, 2000_ It is our understanding that it will take at <br />least 30 days after permits are submitted to obtain building permits from the City of Lodi. <br />Given the information above, it does not appear feasible to meet the April 24, 2000, deadline in your <br />letter to have a pump and treat system installed and operational at the site. Given the constraints <br />imposed by the permitting process, hookup to the industrial waste line, getting electrical hookup, and <br />obtaining the required permits, we do not anticipate that a pump and treat system can be installed and <br />operational before July 1, 2000. <br />Please call us at 93.6.631.1300 if you have questions. <br />Sincerely, <br />Mettler«Ryan Inc. <br />Stephen J_ Cart r, R.G. <br />Senior Geologist <br />cc: Mr. Bob Cochran Chevron Products Company, P.O. Box 6004, San Ramon, CA 94583 <br />Mr. Marty Hartzell, Regional Water Quality Control Board, Central Valley Region, 3443 <br />Routier Road, Suite A, Sacramento, CA 95827-3003 <br />Ivern and Roger Baffoni, 1175 Orangewood Drive, Lodi, CA 95240 <br />346408.07 2 <br />