4.1.1 SIC Codes The three main sources of information EPA used in the screening-level analysis and further category review were the 1997 U.S. Economic Census, and two EPA databases, TRI and PCS (discussed in detail in Sections 4.2.1anbsp;...
Title | : | Technical support document for the 2004 effluent guidelines program plan |
Author | : | |
Publisher | : | DIANE Publishing - |
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