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' PHASE I ENVIRONMENTAL SITE ASSESSMENT <br /> GLEASON PARK PROJECT <br /> ' STOCKTON, CALIFORNIA <br /> ' 1.0 INTRODUCTION <br /> This report summarizes the findings of a PHASE I Environmental Site Assessment (PHASE I) <br /> conducted at three city blocks bound by California, Lafayette, Sonora, and Grant Streets, in the <br /> city of Stockton, San Joaquin County, California (SITE). A SITE Location Map is presented as <br /> Drawing 1 in Appendix A. <br /> ' This PHASE I was authorized by Mr. David Milton and Mr. Dwayne Milnes representing the <br /> Redevelopment Agency of the City of Stockton. The PHASE I was performed by the <br /> ' Environmental Services Division of The Twining Laboratories, Inc. (Twining), in Fresno, <br /> California, consistent with the American Society for Testing and Materials (ASTM), "Standard <br /> Practice for Environmental Site Assessments" E-1527-94 (ASTM, 1994). <br /> 2.0 PURPOSE AND SCOPE <br /> The purpose of the PHASE I was to: <br /> o Assess the environmental condition of the SITE based on the past and current existence (or <br /> absence) of impairments and the past existence of activities, practices, and materials which <br /> 1 are subject to environmental regulation governing contamination of soil and/or <br /> groundwater; and <br /> ' o Assess reported soil and groundwater contamination incidents in the surrounding area, up <br /> to a one-mile radius from the SITE, which could pose an environmental concern or <br /> impairment. <br /> ' The scope of work is summarized as follows: <br /> ' o Conducted a drive-by reconnaissance of the SITE and accessible areas within one-quarter <br /> mile of the SITE; <br /> o Reviewed aerial photographs to assess the history and past use of the SITE; <br /> o Reviewed available regulatory agency files regarding known releases of hazardous <br /> ' materials to the environment, up to one mile of the SITE. Facilities known to operate <br /> and/or maintain underground storage tanks (USTs) and/or aboveground storage tanks <br /> (ASTs) on-SITE and at adjoining properties were also identified <br /> o Reviewed data to assess potential environmental concerns or impairments as a result of the <br /> past and present activities at the SITE, existing SITE conditions, and conditions at off- <br /> SITE properties; and <br />