Economic Analysis for the Final Stage 2 Disinfectants and Disinfection Byproducts Rule. Volume 3: Appendices I-N

摘要

The Surface Water Analytical Tool (SWAT) is the primary tool used by EPA to predict treatment technology changes in surface water systems to achieve compliance with the Stage 2 Disinfection and Disinfectants Byproducts Rule (DBPR). Treatment technology changes are the basis for calculating national cost estimates in this Economic Analysis (EA). SWAT is also one of the primary tools used to predict changes in national chlorination disinfection byproduct (DBP) occurrence levels as a result of the treatment technology changes. Changes in DBP occurrence levels are used to quantify benefits (specifically, reduced bladder cancer) of the Stage 2 DBPR.