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Mike Infurna [EH] <br /> From: Ron Chinn [rchinn@closuresolutions.com] <br /> Sent: Tuesday, April 22, 2008 7:29 AM <br /> To: Jim Barton <br /> Cc: Marta Garcia; Mike Infurna [EH] <br /> Subject: Re: Flag City New West- MW-11B Repair <br /> Hi Jim, <br /> I suspect that the surveyor can use the existing monitoring wells as benchmarks for <br /> elevation, and since Xy is already established, I think this is actually a very small <br /> scope of work. Frankly, 75% of the work would be driving back and forth from the site, <br /> 20% recordkeeping, and maybe 58 equipment setup. The shooting of the elevation should <br /> take between 60 and 120 seconds. This is why I'm hoping to incorporate this survey into <br /> the next major surveying scope of work, which would be the installation of the extraction <br /> wells. <br /> I don't expect that the extraction wells will be installed for several more months - we've <br /> still got an FRP and system design to do before we start plunking wells into the ground. <br /> This would mean that 2Q08 and potentially <br /> 3Q08 sampling events would not give you meaningful GW elevation data for MW-11B. . .but <br /> given the number of wells out there already (including the MW-6 and MW-10 series) , the GW <br /> elevation data for MW-11B is a bit redundant. <br /> Will you allow us to not survey the elevation of MW-11B until the extraction wells are <br /> placed? <br /> Thanks, <br /> --Ron <br /> On 4/22/08 6:29 AM, "Jim Barton" <jbarton@waterboards.ca.gov> wrote: <br /> > Hi Ron, <br /> > Thanks for the update and for your rapid response. I agree that it looks <br /> > suspicious. By waiting for a more substantial scope of work to <br /> > contract the surveyors, do you mean the new extraction wells <br /> > installation and if so, when is that task scheduled? I think we need <br /> > to have the surveyor set temporary benchmarks on the sidewalk near the <br /> > wells in the street, so that we can shoot a temporary level to the top <br /> > of casing if this happens again. What do you think? <br /> > Hi Mike I. , <br /> > Thanks for the heads up. Did you place the broken pvc casing in the well? <br /> > The metal street cover also appears to be missing. Seems like a lot <br /> > of work for a few pounds of scrap metal. I wonder if the workers at <br /> > Starbucks saw anything. <br /> > Jim <br /> > James L.L. Barton, P.G. <br /> > Engineering Geologist <br /> > California Regional Water Quality Control Board Central Valley Region, <br /> > 11020 Sun Center Drive, Suite 200, Rancho Cordova, CA 95670 office <br /> > (916) 464-4615 <br /> > fax (916) 464-4704 <br /> >>>> Ron Chinn <rchinn@closuresolutions.Com> 4/21/2008 11:39 PM >>> <br /> > Hi Jim, <br /> > Our guys managed to take a look at the damaged well at the Flag City <br /> > New West. It turns out that MW-11B (not MW-10B) is the damaged well. <br /> 1 <br />