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' IT Corporation <br /> ' 4005 Port Chicago Highway <br /> Concord, CA 94520-1120 <br /> Tel 925 288 9898 <br /> the <br /> e Fax 925 288 0888 C-D <br /> t;group. A hleniber of The IT Groaeio <br /> r <br /> October 1,2001 <br /> Mr Bob DeNinno <br />' 7-Eleven, Inc i <br /> 3130 S Owyhee Street <br /> Boise, Idaho 83705 <br />' Subject Third Quarter 2001 Monitoring and Sampling Report <br /> 7-Eleven Site No 17334 <br />' 4501 North Pershing Avenue <br /> Stockton, California <br /> IT Corporation Project 779950 <br />' Dear Mr DeNinno <br />' This Third Quarter 2001 Monitoring and Sampling Report presents the results of monitoring and sampling <br /> activities performed by IT Corporation at the subject site (Figures 1 and 2,Attachment 1) on August <br /> 21,2001 <br /> The San Joaquin Co Public Health Services/Environmental Health Department has requested additional <br /> site assessment A workplan for additional assessment activities will be submitted in accordance with the <br />' revised deadline (IT Corporation, Inc , correspondence, September 27, 2001) <br /> A summary of activities conducted during this reporting period is provided below <br /> Depth to water(DTW)was gauged in five site-related groundwater monitoring wells (MW-2, MW- <br /> 3, MW-4, MW-5A,and MW5-B) <br />' Groundwater samples were collected from five monitoring wells and submitted to a <br /> California-certified laboratory for analysis of benzene,toluene, ethylbenzene and total xylenes <br /> (STEX), methyl-tert-butyl-ether (MTBE),tert-butanol (TBA), diisopropyl ether (DIPE), ethyl-tert- <br />' butyl ether(ETBE),tert-amylmethyl ether(TAME), and total petroleum hydrocarbons-as-gasoline <br /> (TPH-G) <br />