A Watershed-based Cumulative Risk Impact Analysis: Environmental Vulnerability and Impact Criteria |
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Authors: | Sharon L. Osowski Joseph D. Swick Jr. Gerald R. Carney Hector B. Pena Jeffery E. Danielson David A. Parrish |
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Affiliation: | (1) Office of Planning and Coordination, U. S. EPA Region 6 Compliance Assurance and Enforcement Division, Dallas, TX, U.S.A.;(2) Office of Planning and Coordination, U. S. EPA Region 6 Compliance Assurance and Enforcement Division, Dallas, TX, U.S.A.;(3) Computer Data Systems, Dallas, TX, U.S.A. |
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Abstract: | Swine Concentrated Animal Feeding Operations (CAFOs) have received much attention in recent years. As a result, a watershed-based screening tool, the Cumulative Risk Index Analysis (CRIA), was developed to assess the cumulative impacts of multiple CAFO facilities in a watershedsubunit. The CRIA formula calculates an index number based on: 1) the area of one or more facilities compared to the area of the watershed subunit, 2) the average of the environmental vulnerability criteria, and 3) the average of the industry-specific impact criteria. Each vulnerability or impact criterion is ranked on a 1 to 5 scale, with a low rank indicating low environmental vulnerability or impact and a high rank indicating high environmental vulnerability or impact. The individual criterion ranks, as well as the total CRIA score, can be used to focus the environmental analysis and facilitate discussions with industry, public, and other stakeholders in the Agency decision-making process. |
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Keywords: | environmental protection GIS screening tool swine feedlots watershed-based water pollution |
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