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Jeff Won EH <br /> From: Jim Barton [jbarton@waterboards.ca.gov] <br /> Sent: Wednesday, April 06, 2005 9:52 AM <br /> To: jlane@groundzeroanalysis.com; Jeff Wong [EH] <br /> Subject: Re: Speedy Foods Treatment System Status <br /> John, <br /> I have a site in Manteca using these units where fine black sand is clogging one of them, <br /> so you might consider a sand filter if that's a problem. <br /> Also, please provide information on the proposed additive (an MSDS sheet would be <br /> helpful) . I need to determine whether this modification will alter the waste discharge <br /> requirements for the general permit. <br /> Thanks for the notice. <br /> Jim <br /> Please note the email change: jbarton@waterboards.ca.gov. <br /> James L.L. Barton, P.G. <br /> Engineering Geologist <br /> California Regional Water Quality Control Board <br /> Central Valley Region <br /> 11020 Sun Center Drive, Suite 200 <br /> Rancho Cordova, CA 95670 <br /> office (916) 464-4615 <br /> fax (916) 464-4797 <br /> »> "John Lane" <jlane@groundzeroanalysis.com> 04/06/05 09:29AM >>> <br /> Jim and Jeff: <br /> The groundwater treatment system has been temporarily shut down for <br /> maintenance. It appears as though scaling precipitation has greatly <br /> increased backpressure and restricted flaw through the carbon units. <br /> We previously performed an acid wash through the units which seemed to <br /> restore flow for about a week before scaling again decrease flow <br /> through the carbon units. We have been in contact with Slaby <br /> Sales/Keep Systems to develop a program to reduce hardness by metering <br /> an additive into the flow stream. I have scheduled for Monday <br /> inspection of the units (opening the upper manway and inspecting <br /> distribution piping) to determine if biofouling may also be <br /> contributing to inhibiting flow- <br /> The trenching and piping runs for the vapor extraction system has been <br /> f the TCAT s <br /> completed and we await delivery o system. The manufacturer y <br /> p <br /> (solleco) anticipates delivery within two weeks. <br /> I will keep you updated on progress. <br /> Regards, <br /> John Lane <br /> Ground Zero Analysis, Inc. <br /> 1714 Main Street <br /> Escalon, CA 95320-1927 <br /> t (209) 838-9888 Phone <br /> (209) 838-9883 Fax <br /> f <br /> 1 <br /> 4 <br />