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Richesin & Associates, Inc. <br /> 274 Barrett Circle , , <br /> Danville CA 94526 <br /> (510)X837-0817 ( <br /> DEC 2 Prri <br /> is VP i it O N.M.F NTA A L I'7 c../'`i L.1 F'�i <br /> E� <br /> PERMIT/SERVICES <br /> November 25, 1991 <br /> File No. E91225 <br /> . i <br /> Mr. Thomas E. Hendrix <br /> Hendrix Transport, Inc. <br /> 3730 Munford Avenue <br /> Stockton, C.A 95205 <br /> Subject: Review of Initial Well Installations, Chemical Testing and <br /> Tank Removal Activities Interim Work Plan for <br /> Additional Site Investigations - Thomas E. Hendrix Site, <br /> 3730 Munford Avenue, Stockton, CA <br /> Dear Mr. Hendrix: <br /> This letter report contains the results of our recent review and assessment of tank <br /> removal, previous soil sampling, well installation and chemical analysis work for the site <br /> owned by Thomas E. Hendrix on Munford Avenue in Stockton, California. This letter <br /> also contains an interim work plan for additional investigations at the site based on the <br /> data currently available. <br /> SITE CONDITIONS <br /> The Hendrix site (Site) is located east of Highway 99 at 3730 Munford Avenue <br /> near Carpenter Road in the southeast part of Stockton, California. The site location is <br /> shown=on-Figure1,, <br /> One 1,000 gallon gasoline tank was removed in 1986 from the area of the Site <br /> shown in Figure 1. Piping from the fill tube to the tank was also removed. Its' former <br /> location is also shown in Figure 1. Minor leaks in the piping were reported by Mr. <br /> Hendrix, but tank tests performed periodically on the gas tank indicated no leakage. <br /> Test boring information from work performed by Kleinfelder in 1986 suggests <br /> silty clay to about ten feet; silty sand and sand to about 20 feet; and sandy, silty clay <br /> from about 20 feet to 50 feet. At 50 feet, sand with some silty clay was encountered to <br /> about 56 feet where first groundwater was found in the Meinfelder well. Below 56 feet, <br /> silty, sandy clay and sandy silt was found to the maximum depth of the boring at 76.5 <br /> feet. This well was installed directly beneath the removed fuel tank piping as shown in <br /> Figure 1. <br />