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TEL No . May 7 .93 8:38 No .001 P .02 <br /> ACRO ENVIRONMENTAL SERVICES <br /> A JAVISLon of Condor Earth Technvlogics,Inc. <br /> April 22, 1993 <br /> California Regional Water Quality Control Board <br /> Central Valley Region <br /> 3443 Routier Road, Suite A <br /> Sacramento, CA 95H27-3098 <br /> ATTN: POLLY WWRY <br /> Associate Engineering Geologist <br /> RE: TRIPLE E PRODUCE [.'-OKPORATION, TRACY, CA <br /> As indicated in Mr. Paul Sundberg's February 24, 1993 letter <br /> to you, Roy F. Weston, Inc. (WESTON) has been investigating <br /> the various actions set forth in your ]etter of January 26, <br /> 1993. Agro Environmental Services (ACRO) is providing <br /> overall project coordination for 'Triple E Produce, and thus, <br /> has been requested to respond to the Regional Board regarding <br /> the groundwater remediation program at the Triple E Produce <br /> Facility. <br /> As you are aware, WESTON' s February 24 submittal to the <br /> Regional Board requested a time extension until March 30, <br /> 1993 in order to respond to your. January 26 letter. Triple E <br /> has been diligently working with its consultants in an effort <br /> to respond within the time provided by the extension. <br /> Unfortunately, the complexity of the issue, coupled with the <br /> principals of Triple E being located in Vlorida for winter <br /> operations, has not permitted a response to the Regional_ <br /> Board until now. <br /> In order to address the Regional Board's concerns, Triple E <br /> requested WESTON to research and prepare preliminary <br /> engineering sufficient to develop a conceptual cost estimate <br /> for installing and operating various coltiC19uratians for a <br /> groundwater remedial system for the Tracy facility. <br /> Treatment alternatives considered installation and first-year <br /> operating costs, including ongoing operational costs for an <br /> assumed treatment period of 5 years. The treatment addressed <br /> implementation of a ,full containment" program as requested <br /> by the Regional Board as well as a "source control" program <br /> originally proposed by WESTON. Both treatmeat alternatives <br /> emphasized efficacy, reliability (expressed in termu of <br /> maximum on-line service) and flexibility. `� <br /> w � <br /> Based on the WgSTON assessment, the source Control <br /> alternative is estimated to cost $458,500 . The Full <br /> Containment alternative is estimated to cost $967, 700. c>J <br /> R? `'1'"r <br /> .. <br /> ";—IT. <br /> - <br /> 5651 North Pershing Ave_■ Suite C-3 ■ Stockton,California 9S207 <br /> (209)474-1492 ■ FAX 1209!478-1716 <br />