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Hazardous Materials <br />vegetable preparation area), and two owned by AutoCraft. Most of the site is paved, except for a <br />gravel area about 40 feet wide, north of the wastewater treatment building. <br />Review of historical land uses reveals that most of the property has been used for food <br />processing since 1895, when a canning and packing company first occupied the site. The <br />AutoCraft property was first developed in the 1890s as a lumber yard and subsequently has been <br />used by a planing mill, irrigation equipment supplier, muffler shop, drapery cleaning shop, and <br />auto body repair shop. <br />Significant Adverse Impacts <br />Potential long-term impacts could result from the use of hazardous materials (e.g., lubricants, <br />fuels, solvents, etc.) during construction, operation, and maintenance, or from encountering <br />onsite locations with existing soil or ground water contamination. The likelihood of impacts <br />(releases) from operation and maintenance activities is low. The likelihood of impacts from <br />encountering existing contaminated sites, which depends upon the extent and character of <br />contamination, would be minimized by identifying the sites and potential sites prior to <br />construction, and employing appropriate control, cleanup, and disposal measures. A variety of <br />impacts, both beneficial and adverse, could result from encounters with existing hazardous <br />material sites, including the following: <br />• Contamination that otherwise would remain in place and potentially <br />migrate may be discovered and addressed by the project <br />• Cleanup may be accomplished sooner to accommodate project <br />construction <br />• Contamination may be prevented by removing potential existing sources, <br />such as underground storage tanks, before they release <br />• Contaminated materials may be uncovered, allowing more direct exposure <br />to the public <br />Contamination may be spread as a result of construction. <br />Project impacts on the environment at each hazardous material site cannot be assessed without <br />detailed evaluation of site-specific conditions. In some cases, additional site investigations <br />would be required to determine the limits of contamination. With proper control techniques, <br />contaminated soil would be removed and disposed of or treated at locations designed for <br />hazardous material management; contaminated ground water would be treated onsite. By using <br />licensed carriers and vehicles equipped for the task, risk of public exposure would be limited <br />during soil removal and transport offsite. Treatment of ground water would employ techniques <br />engineered for the specific contaminants encountered. <br />New Federal Courthouse 101 Final EIS <br />