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IVAN VEGVARY, P.E., L.S. <br /> ENGINEERING - SURVEYING - SUBDIVISIONS <br /> 40 TERRA TERESA, LAFAYETTE, CA 94549 <br /> (510) 947-1051 Fax (510) 932-1026 <br /> February 27, 1998 <br /> Ms.Kasey L.Foley,R.E.H.S. <br /> Public Health Services <br /> San Joaquin County <br /> 304 E. Weber Avenue,Third floor <br /> Stockton, CA 95202 <br /> Faxed to: 209-468-34-33 <br /> Re: Underground tank closure, 2749 S.El Dorado Street, Stockton <br /> Ken Willis property <br /> Dear Ms.Foley, <br /> Enclosed are two diagrams illustrating the dimensions used to determine the boring locations relative to <br /> the tank. Please note that the drilling axis was 30°from the vertical. Also note that while depths of 14' <br /> and 19'were us9)1 by the drill bit,the sampler was made up of an additional three sections about 2 feet <br /> long. I used ort°Lalf of that as an average sample location giving use effective depths of 15'and 20' used <br /> in the attached diagrams. <br /> We are targeting the 9`"of March for the backfill of the tank. If your review of our application indicates <br /> that this needs to be delayed,please let us know as soon as possible. <br /> Sincerely yours, <br /> Ivan Vegvary <br /> cc Ken Willis <br />