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n�nagwn Znf <br /> Operable Unit (OU) -- A discrete unit which has been identified to provide partial mitigation <br /> or remediation of a contaminated site. <br /> Record of Decision (ROD)--A public document describing which cleanup alternative(s) will <br /> be implemented at a Superfund hazardous waste site. The ROD is based on information and <br /> technical analyses generated during the RI/FS study and incorporates public comments and <br /> community concerns. <br /> Remedial Investigation/Feasibility Study (RI/FS)--A two-part study of a hazardous waste <br /> site that supports the selection of a remedial action for the site. The RI identifies the type <br /> and extent of contamination. The FS identifies and evaluates alternatives for addressing site <br /> contamination based on the results of the RI. <br /> Remediation--An action which will rehabilitate contaminated media (such as groundwater) <br /> to the appropriate levels, as defined by EPA. <br /> Risk Assessment--The qualitative and quantitative evaluation performed as part of the <br /> remedial investigation in an effort to define the risk posed to public health, a <br /> RWQCB--The California Regional Water Quality Control Board, Central Valley Region)(4iAM191 <br /> e0V1fVo Mf11 pmkch00 tcy <br /> Superfund--See CERCLA. <br /> Superfund Amendments and Reauthorization Act (SARA),-A federal law passed in 1986 <br /> which modified the 1980 CERCLA Superfund law by strengthening EPA's authority, state <br /> involvement, and opportunities for public participation. Additional Superfund revenues were <br /> also granted <br /> U.S. Environmental Protection Agency (EPA)--Federal agency charged with implementing <br /> CERCLA/SARA and other federal environmental regulations. <br /> Volatile Organic Compounds (VOCs)--Organic compounds (e.g., solvents) that vaporize <br /> readily at room temperature. <br /> QAWJG43.1(90380C3\20 20 M1008920728 <br />