ABSTRACT: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)

中文翻译：

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评估美国水质变化的综合评估模型

摘要：美国环境保护署 (EPA) 通常需要环境评估员、水文学家、经济学家和其他人的专业知识来分析与水质变化相关的区域和国家政策决策的好处。这促使 EPA 开发了两个模型以形成综合评估模型：HAWQS 是一个基于网络的水量和水质建模系统，BenSPLASH 是一个建模平台，用于量化水质变化的经济效益。本文讨论了组件模型的开发，并将 HAWQS 和 BenSPLASH 应用于共和党河流域的案例研究。(JEL Q51, Q53)