RT Journal Article SR Electronic T1 An Integrated Assessment Model for Valuing Water Quality Changes in the United States JF Land Economics JO Land Econ FD University of Wisconsin Press SP 478 OP 492 DO 10.3368/wple.96.4.478 VO 96 IS 4 A1 Joel Corona A1 Todd Doley A1 Charles Griffiths A1 Matthew Massey A1 Chris Moore A1 Stephen Muela A1 Brenda Rashleigh A1 William Wheeler A1 Stephen D. Whitlock A1 Julie Hewitt YR 2020 UL http://le.uwpress.org/content/96/4/478.abstract AB The U.S. Environmental Protection Agency (EPA) often requires expertise from environmental assessors, hydrologists, economists, and others to analyze the benefits of regional and national policy decisions related to changes in water quality. This led the EPA to develop two models to form an integrated assessment model: HAWQS is a web-based water quantity and quality modeling system, and BenSPLASH is a modeling platform for quantifying the economic benefits of changes in water quality. This paper discusses the development of the component models and applies HAWQS and BenSPLASH to a case study in the Republican River basin. (JEL Q51, Q53)