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Wellhead Protection Areas (WHPA) are areas designated to protect public water supply wells from contaminants that could harmful to humans. These areas are protected by placing limitations on chemical storage and land use activities in the area that contributes water to the well or wellfield. WHPAs are designed to protect all or part of the surrounding area from which a well’s water is drawn.
The size of each WHPA varies depending on a number of factors including geologic and hydrologic features. Wellhead Protection Areas are regularly inventoried for potential sources, monitored for specific contaminates, and existing and future land uses are managed to protect the area as much as possible.
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The average American uses 140-170 gallons of water per day.