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Act (RCRA) . DDRW is investigating these SWMU sites to determine <br /> if they still pose a risk to the public and if so what the risk <br /> may be. Many of the sites may require no action but some will <br /> require remediation (i.e. , remove and process soil to remove oil; <br /> remove soil and perform some form of steam treatment to eliminate <br /> the contaminants; or excavate soil, drum it, and take it to a <br /> hazardous waste landfill) . <br /> In addition, DDRW had 32 underground storage tanks (USTs ) . Some <br /> of these 32 tanks leaked. These tanks have been removed and it <br /> is planned to do hydrocarbon recycling on those tanks. DDRW will <br /> recover the contaminants in the soil or possibly use that soil <br /> for making asphalt. <br /> Location Change of Information Repository: <br /> DDRW is required under the Superfund statute to establish an <br /> information repository and administrative record. They contain <br /> those documents which form the basis for selection of a response <br /> action. The DDRW Tracy and Sharpe information repository is now <br /> located at DDRW Sharpe because of space problems at the <br /> libraries . The information repository may be viewed Monday <br /> through Friday, 7 : 00 a.m. to 3 : 00 p.m. , at Building S-1 . If <br /> these times are not convenient, interested persons may contact <br /> the DDRW Environmental Protection Office, (209) 982-2085, for <br /> other arrangements . <br /> DDRW welcomed all to visit/tour the facility. <br /> Mr. Jim Raymond, City of Tracy, asked if DDRW purchased the <br /> agricultural land up to 11th Street. DDRW said they acquired the <br /> property. It is their intention to install another air stripper, <br /> as well as extraction wells and an infiltration injection gallery <br /> trenches , to contain any northward and eastward migration of the <br /> plume. <br /> Mr. Raymond asked if the treated water was directed to a holding <br /> pond. DDRW said the treated water can be diverted to two <br /> wastewater ponds, a stormwater pond, or to injection wells . DDRW <br /> does not choose to use the injection wells because they have been <br /> experiencing calcium plating problems which plugs the well <br /> screens . DDRW said the air stripper is being expanded from 125 <br /> gallons per minute (gpm) to 350 gpm. It is anticipated that this <br /> will reduce the calcium plating effect. <br /> Mr. Raymond asked if the treated water could be used for surface <br /> irrigation rather than injecting it back into the aquifer. DDRW <br /> said surface irrigation was considered but the farmers were not <br /> interested in the water because it was from the Upper Tulare <br /> 2 <br />