NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Has Surface Water Quality Improved Since the Clean Water Act?

V. Kerry Smith, Carlos Valcarcel Wolloh

NBER Working Paper No. 18192
Issued in June 2012

---- Acknowledgements -----

Partial support for this research was provided by the National Science Foundation under Grant No. SES-0951366 Decision Center for a Desert City II: Urban Climate Adaptation (DCDC). The views expressed herein are those of the authors and do not necessarily reflect the views of the National Bureau of Economic Research.

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