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SUMMARY OF ACTIVITIES <br /> JERSEY ISLAND STAGING AREA <br /> 1.0 INTRODUCTION AND BACKGROUND <br /> 1. In 1991 and 1992, during the repair and replacement of the Santa Fe Railway Company <br /> (Santa Fe) Middle River Bridge located between Orwood Tract in Contra Costa County and <br /> Woodward Island in San Joaquin County, creosote-treated wood materials removed from <br /> the bridge were temporarily stockpiled adjacent to the bridge. The California Department <br /> of Fish and Game (CDFG) was concerned with the presence of the wood materials adjacent <br /> to the bridge, and removal was subsequently required by CDFG and San Joaquin County <br /> Public Health Services (SJCPHS). ON". <br /> 2. Prior to removal of the wood materials from the site, samples were collected to determine <br /> the appropriate handling and disposal requirements for the wood materials. Creosote- <br /> treated wood is generally considered non-hazardous,but the presence of some chemical <br /> constituents in the wood materials could limit its acceptability for disposal at some <br /> landfills. The samples were therefore collected to confirm the non-hazardous nature of the <br /> �.. wood materials and to evaluate the acceptability of the wood materials for disposal at <br /> several landfills. <br /> 3. Several representative samples of the various wood material components (e.g., deck boards, <br /> stringers and piles) were collected by Environmental Solutions,Inc. on October 29, 1992. <br /> The samples were composited into two representative composite samples based on the <br /> relative volume of each component, and the composite samples were sent under proper <br /> chain-of-custody to two separate analytical laboratories for testing. One sample was sent to <br /> Chromalab, Inc., a California-certified analytical laboratory in San Ramon. The other <br /> sample was sent to Western Bioassay Laboratory, a California-certified analytical <br /> laboratory in Walnut Creek. <br /> 4. Selected waste characterization analyses were performed according to criteria established <br /> in Title 22, Division 4.5, Chapter 11, Article 3, Section 66261.20 of the California Code of <br /> Regulations (CCR) on the representative composite samples of the wood material to <br /> confirm the non-hazardous nature of the wood materials. California has adopted the U.S. <br /> Environmental Protection Agency (EPA)criteria for determining a hazardous waste <br /> ENVIRONMENTAL SOLUTIONS <br />