AI Article Synopsis
- - Approximately 23 million U.S. households use private wells for drinking water, but many do not test their water as often as recommended, risking exposure to pollution.
- - A study in Iowa found that 40% of households do not regularly test or treat their well water, indicating potential widespread contamination issues.
- - An intervention using nitrate test strips and information about free testing programs increased testing rates but had limited impact on other behaviors; households valued the program higher than its costs, suggesting it improved overall welfare.
Article Abstract
Approximately 23 million U.S. households rely on private wells for drinking water. This study first summarizes drinking water behaviors and perceptions from a large-scale survey of households that rely on private wells in Iowa. Few households test as frequently as recommended by public health experts. Around 40% of households do not regularly test, treat, or avoid their drinking water, suggesting pollution exposure may be widespread among this population. Next, we utilize a randomized control trial to study how nitrate test strips and information about a free, comprehensive water quality testing program influence households' behaviors and perceptions. The intervention significantly increased testing, including high-quality follow-up testing, but had limited statistically detectable impacts on other behaviors and perceptions. Households' willingness to pay for nitrate test kits and testing information exceeds program costs, suggesting that the intervention was welfare-enhancing.
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| http://dx.doi.org/10.1021/acs.est.4c02835 | DOI Listing |
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