Why this is important: Everyone needs clean water to drink. Contaminated water can be a threat to anyone’s health, especially young children. The risk of having drinking water quality problems depends on the quality of well construction and maintenance, the local environment, the aquifer from which water is drawn, and human activities in the area. All 50 states have detected elevated groundwater levels of contaminants. Local rules and permitting help ensure wells are built properly, but the responsibility of checking to make sure a well is functioning properly and that the water is healthy to drink is that of the well owner.
Definition: Percent of people served by domestic (self-supplied) wells.
Data Source: Washington State Department of Health, Office of Drinking Water, Sentry Database. Accessed through the Washington Tracking Network. Presentation of data by Spokane Regional Health District, Data Center.