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v <br /> i FOOTHILL <br /> ENGINEERING <br /> 8442 PH(916RIDGE <br /> 729 5184 Y�AX(916)729=05995843 5 3 <br /> Mr Michael Infurna December 6, 2005 <br /> San Joaquin County Public Health Services <br /> 304 E Weber Third Floor <br /> Stockton, CA 95202 <br /> Subject Mrs Helen Higgins/Vogue Cleaners <br /> 2315 N California Street <br /> Stockton, CA Site code 231032 <br /> Global ID T0607700741 <br /> Dear Mr Infuma <br /> Please find below the report of the findings for soil and water samples extracted from Cone <br /> Penetration Test (CPT) #1 and 92 at the Vogue Cleaners site on 10/21/05 <br /> CPT #1 AND #2 SOIL AND WATER SAMPLES <br /> SITE HISTORY <br /> The site has a long history of use as a cleaning establishment and presently has the same use <br /> On June 6, 1996, Thorpe Oil removed two empty underground storage tanks from the property <br /> under a permit from the PHS/EHD Soil samples from the tank excavation were obtained using <br /> standard methods and locations The sample from under Tank#1 was taken at a depth of+/- <br /> eight feet The sample from Tank 42 was taken at a depth of+/- nine feet Both these samples <br /> and samples from the excavation spoil showed evidence of hydrocarbon contamination (See <br /> map enclosed) All of the above samples were analyzed by GeoAnalytical Laboratories, Inc The <br /> location of Tank#1 is between two structures and is 25' from the closest access point by drilling <br /> equipment Tank#2 could be accessed by vertical drilling equipment <br /> Phase 1 of the Site Investigation required drilling a slant soil boring under Tank#1 and a <br /> vertical soil bore at the location of Tank#2 <br /> Phase 2 of the Site Investigation was conducted to define the vertical and horizontal extent of <br /> the contamination plume It was completed on 5/28/98 with the installation of MW#2S, <br /> MW#2D, MW#3S, MW#3D, and MW#4S, MW#4D A double monitoring well was installed in <br /> each location The shallow wells (noted by the "S" letter) had a total depth of+/-55' and the <br /> deep monitoring wells had a total depth of+/-75' <br /> Monitoring wells MW#5S and MW#5D were installed on 11/07/01 in the parking lane on the <br /> east side of California Street Soil samples indicate the presence of 1,2-Dichloroethane and 1,1- <br /> Dichloroethene in low concentrations BTEX was not found in this new soil bore or water <br /> • samples <br /> 1 <br />