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,ry <br /> I f <br /> 'k II <br /> LEARWATI, <br /> I <br /> j} G R O U P, I NIC . <br /> Environmental Services <br /> Ms. Brooke Birkie March 26, 1997 <br /> P.O. Box 4752 <br /> Stockton California 95204 <br /> Re: Quarterly Groundwater Monitoring Report <br /> CP <br /> Frederic Clarke Estate, 729 South Commerce Street <br /> Stockton, California <br /> Dear Ms. Birkie: <br /> Enclosed is the Quarterly Groundwater Monitoring Report for the first <br /> quarter, 1997 submitted by Clearwater Group Itc. (Clearwater) on behalf of <br /> Mrs. Mary Clarke and the Frederic Clarke Estate!'h Copies of this report will be <br /> sent to Mrs. Clarke and Ms. Margaret-Lagorio of the.San Joaquin County <br /> Public Health Services, Environmental Health Division (EHD). <br /> Results of groundwater sampling on -February 28, 1997 indicate that <br /> hydrocarbons have impacted groundwater at the site, although', the lateral <br /> 1. <br /> extent of dissolved hydrocarbons in groundwater appears to be limited. <br /> Groundwater levels were,-approximately four feet higher than during <br /> November, 1996. The direction of groundwater flow, which is typically <br /> toward the east, was toward the southwest during February 1997 and had a <br /> somewhat steeper gradient. This data suggests that groundwater in the ! <br /> vicinity of the site may be undergoing recharge from the direction of the <br /> Mormon Slough. <br /> Please feel free to call me at 510-893-5160 (extension 15) if youl',have questions t <br /> or comments regarding this document. It is all pleasure to be of continued <br /> service to you and Mrs. Clarke. <br /> Sincerely, <br /> CLEARWATER GROUP, INC. <br /> E <br /> anna S. Hudson <br /> Senior Geologist <br /> Attachment <br /> i <br /> cc: Mrs. Mary Clarke, Frederic Clarke Estate E <br /> Ms. Margaret �Lagorio, San Joaquin County PHS I <br /> t <br /> 520 Third Street,Suite 104 « Oakland,California 94607 . Telephone 510-893-5160 ®', Fax 510-893-5947 <br />