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MW-'IOD AND M'W-11 S FOOTHILL <br /> WORK PLAN ENGINEERING <br /> 8442 STORY RIDGE W Y.ANTELOPE <br /> ELO721_0593 <br /> 5843 <br /> Mr. Michael lnfurna <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> 304 E. Weber Third Floor June 10. 2008 <br /> Stockton, CA 95202 <br /> Subject: Mrs. Helen Higgins!Vogue Cleaners <br /> 2 315 'v California Street <br /> Stockton. CA Site code: 231032 <br /> Global ID T0607700741 <br /> Dear Mr. Lnfuma: <br /> Please find attached the Work Plan for MW-10D,and MW-11 S. <br /> VOGUE CLEANERS <br /> WORK PLAN FOR MW-IOD AND MW-I IS <br /> SITE HISTORY <br /> The site has a long history of use as a cleaning establishment and presently has the same use. <br /> On lune 6, 1996, Thorpe Oil removed two empty underground storage tanks from the property <br /> under a permit from the PHSIELID. Soil samples from the tank excavation were obtained using <br /> standard methods and local ions. The sample from under the Stoddard Solvent Tank (Tank #1) <br /> was taken at a depth of*/- eight feet. The sample from the leaded gasoline tank (Tank#2) was <br /> taken at a depth of-i- nine feet_ Both these samples and sannples from the excavation spoil <br /> showed evidence of hydrocarbon contamination (See map enclosed). All of the above samples <br /> were analyzed by GeoAnalytical Laboratories,Inc. The location of Tank #1 is between two <br /> slruetwes and is 25' from the closest access point by drilling equipment. Tank #2 could be <br /> accessed by vertical drilling equipment. <br /> Phase t of the Site Investigation required drilling a slant soil boring under Tank 01 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. 1t was eomplctcd on 5128198 with the installation of MW#2S, <br /> MW92D, MW#3S, MW43D, 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 a/-75'. The original set of water samples was made <br /> on 6/11/98. <br /> Monitoring wells MW45S and MW#5D were installed on 1 1!07/01 in the parking lane on the <br /> cast side ot'California Street. Soil samples indicate the presence of I,2-Dichloroethane(L-2- <br /> t <br />