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RECENED y <br /> NOV - 006 ' FOOTHILL <br /> ENVIRONMENT HEALTH ENGINEERING <br /> PERMITISERVICES 8442 STORY RIDGE WAY ANTELOPE CA 95843 <br /> PN:(916)729-5184 WAY, <br /> 729-0593 <br /> Mr. Michael Infurna <br /> San Joaquin County Public Health Services October 31, 2006 <br /> 304 E. Weber Third Floor <br /> Stockton, CA 95202 <br /> Subject: Mrs. Helen Higgins/Vogue Cleaners <br /> 2315 North California Street I <br /> Stockton,.CA Site code: 231032 <br /> GloballD T0607700741 <br /> Dear Mr. Infurna: <br /> Please find attached the Work Plan for MW7S&D and MW-8S&D. <br /> i <br /> I <br /> VOGUE CLEANERS <br /> WORK PLAN FOR MW- S&D AND MW-8S&D <br /> SITE HISTORY <br /> The site has a long history of use as a cleaning esta lishment and presently has the same use. On <br /> June 6, 1996, Thorpe Oil removed two empty underground storage tanks from the property under <br /> a permit from the PHS/EHD. Soil samples from the tank excavation were obtained using standard <br /> methods and locations. The sample from under the Stoddard Solvent Tank(Tank#1)was taken at <br /> a depth of+/-eight feet. The sample from the leaded gasoline tank(Tank#2)was taken at a depth <br /> of+/- nine feet. Both these samples and samples from the excavation spoil showed evidence of <br /> hydrocarbon contamination (See map enclosed). 11 of the above samples were analyzed by <br /> GeoAnalytical Laboratories,Inc.The location of Tank#1 is between two structures and is 25'from <br /> the closest access point by drilling equipment. Tank #2 could be accessed by vertical drilling <br /> equipment. <br /> Phase 1 of the Site Investigation required drilling a slant soil boring under Tank #1 and a vertical <br /> soil bore at the location of Tank #2. <br /> Phase 2 of the Site Investigation was conducted to efine the vertical and horizontal extent of the <br /> contamination plume. It was completed on 5/28/98 with the installation of MW#2S, MW#2D, <br /> MW#3S, MW#3D, and MW#4S, MW#4D. A double monitoring well was installed in each <br /> location. The shallow wells (noted by the "S" letter) had a total depth of +/-55' and the deep <br /> monitoring wells had a total depth of+/-75'.The original set of water samples was made on 6/11/98 <br /> (see water sample analysis, attached). <br /> Monitoring wells MW#5S and MW#5D were ins led on 11/07/01 in the parking lane on the east <br /> side of California Street. Soil samples indicate the Presence of 1,2-Dichloroethane(1,2-DCA)and <br /> 1,1-Dichloroethene in low concentrations. BTEX was not found in this new soil bore or water <br /> samples. <br /> 1 <br />