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' Blaes Environmental Management Inc U-Haul#709-50 <br /> 002-70950-04 <br /> Groundwater Monitoring Report <br /> 01/23/03 <br /> ' 1 3 PROJECT STATUS <br /> In November 2001, Blaes Environmental submitted a work plan to the SJCEHD detailing proposed work <br /> for the site The work plan proposed the Installation of three new monitoring wells to further evaluate <br /> the extent of hydrocarbons In groundwater to the east, west, and south of the site <br /> 1 <br /> Two remedial test wells (one air sparge, and one nested vapor extraction well) were Installed near the <br /> westernmost former dispenser Island Following the Installation of the additional wells, remedial <br /> feasibility studies were conducted that Included a vapor extraction and air sparge test, an aquifer pump <br /> ' test, and a blofeas>bllity analysis of the soil and groundwater The results of the remedial feasibility <br /> studies are to be presented in a separate remedial test report <br /> 14 PROGRAM OBJECTIVES <br /> The objective of the quarterly groundwater monitoring program Is to provide additional monitoring and <br /> analytical data to further evaluate groundwater conditions beneath the site <br /> 15 SCOPE OF WORK <br /> The current quarterly monitoring event was conducted in September 2002 The monitoring event <br /> Involved the following tasks 1) collecting field measurements of groundwater conditions from all of the <br /> well casings In each of the well locations, 2) purging monitoring wells prior to collecting groundwater <br /> samples, 3) storing and profiling purged groundwater for disposal/treatment, 4) analyzing groundwater <br /> 1 samples, and 5)the preparation of this report <br />' 1 6 PROJECT TEAM <br /> The project team consisted of Blaes Environmental of Phoenix, Arizona, and Del Mar Analytical, Inc <br /> (Del Mar), a California State certified analytical laboratory located In Irvine, California <br /> • 2 <br />