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i <br /> - IT Corporation <br /> 757Arnold Drive, Suite D <br /> Martinez, CA 94553 6526 <br /> - Tel 925 370 3990 <br /> 16Fax 925 370 3991 <br /> the(4r,*Oup. <br /> A Member of The IT Group <br /> 1 <br /> ' April 15,1999 <br /> ' Mr Bob DeNinno <br /> The Southland Corporation <br /> 10220 S W Greenburg Road,Suite 470 <br /> Portland,Oregon 97233 <br /> Subject First Quarter 1999 Monitoring and Sampling Report and Closure Abstract <br /> ' Southland Site No 17334 <br /> 4501 North Pershing Avenue <br /> Stockton,California <br /> IT Corporation Project 779950 <br /> Dear Mr DeNinno <br /> This First Quarter 1999 Monitoring and Sampling Report presents the results of monitoring and <br /> sampling activities performed by IT Corporation(formerly Fluor Daniel GTI)at the subject site <br /> (Figures 1 and 2,Attachment 1)on February 17, 1999 A summary of activities conducted during <br /> this reporting period is provided below <br /> ■ Depth to water(DTW)was gauged in five site-related groundwater monitoring wells <br /> ' (MW-2 through MW-4 and replacement wells MW-5A and MW5-B) <br /> ■ Groundwater samples were collected from five monitoring wells(MW-2,MW-3,MW-4, <br /> MW-5A and MW-5B) and submitted to a California-certified laboratory for analysis of <br /> benzene,toluene,ethylbenzene and total xylenes(BTEX),methyl-tent-butyl-ether <br /> (MTBE),tert-butanol (TBA),diisopropyl ether(DIPE),ethyl-tert butyl ether(ETBE),tert- <br /> amylmethyl ether(TAME),and total petroleum hydrocarbons-as-gasoline (TPH-G) <br /> ' Groundwater Monitoring Data <br /> ' Groundwater monitoring of the wells was performed on February 17, 1999 Before monitoring,the <br /> well caps were opened to allow the water in each well to stabilize to atmospheric pressure The <br /> DTW was measured to the nearest 0 01 foot from the top of the well casing using an interface <br /> probe <br /> .f <br />