Coconino County, Arizona — public water systems

How does Coconino County compare with other Arizona counties?

Coconino County has the 5th-most active public water systems among the 56 counties listed for active Arizona systems in EPA records; among the 19 with 3 or more systems, the median has 63. Its systems report 179,316 people served in total, the 7th-largest county figure in the state and 2.3% of the statewide total. The average system here reports serving 1,573 people, about 64% below the Arizona average of 4,369. Population figures are what each system reports; people served by more than one system, such as a wholesaler and the town that buys from it, are counted by each.

Where does Coconino County's drinking water come from?

By primary water source, Coconino County's active systems draw on groundwater (97, 85%), purchased groundwater (8, 7%), surface water (7, 6.1%) and purchased surface water (1, 0.9%). Overall, 93% rely mainly on groundwater (including purchased groundwater) and 7% on surface water, compared with 95% and 4.7% across Arizona. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, City of Flagstaff, draws primarily on surface water.

What kinds of water systems operate in Coconino County?

Coconino County's active systems break down as 38 community systems (33%), 6 non-transient non-community systems (5.3%) and 70 transient non-community systems (61%). A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. EPA lists their owner types as public/private partnership (39%), private (32%), federal government (18%) and local government (7%).