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The relative performance of public and private enterprises has been long debated. We construct a comprehensive violation dataset based on the EPA's Safe Drinking Water Information System to empirically investigate the compliance behavior of publicly and privately owned Public Water Systems (PWSs). Our results show that publicly owned PWSs commit significantly more Maximum Contamination Level, Treatment Technique, and Health-Related violations but fewer Monitor and Reporting violations than privately owned PWSs. We also find that municipal-level heterogeneities explain a substantial amount of variation in violation behaviors among PWSs, suggesting water supply quality depends crucially on location-specific regulations and local economic conditions.

This paper studies the preferences and willingness-to-pay of individuals for volunteer water quality monitoring programs. The study involves supporting water quality monitoring at two ponds in the state of Rhode Island. The paper uses both a hypothetical and a real-payment contingent valuation survey to directly measure individual preferences and willingness-to-pay (WTP) for volunteer water quality monitoring at the two ponds. The overall results of the study suggest that hypothetical WTP is not statistically greater than real WTP, and that the average survey respondent is willing to support water quality monitoring on one of the two ponds. The study also finds that the specified purpose of water quality monitoring and certain socioeconomic characteristics of a respondent significantly affect the respondent's decision to support volunteer water quality monitoring.