Natrona County, Wyoming — public water systems

How does Natrona County compare with other Wyoming counties?

Natrona County has the 6th-most active public water systems among the 33 counties listed for active Wyoming systems in EPA records; among the 23 with 3 or more systems, the median has 27. Its systems report 80,646 people served in total, the 2nd-largest county figure in the state and 12% of the statewide total. The average system here reports serving 1,680 people, about twice the Wyoming average of 838. 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 Natrona County's drinking water come from?

By primary water source, Natrona County's active systems draw on groundwater (24, 50%), purchased surface water (19, 40%), groundwater under influence of surface water (3, 6.3%) and surface water (2, 4.2%). Overall, 56% rely mainly on groundwater (including purchased groundwater) and 44% on surface water, compared with 83% and 17% across Wyoming. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, City of Casper, draws primarily on purchased surface water.

What kinds of water systems operate in Natrona County?

Natrona County's active systems break down as 25 community systems (52%) and 23 transient non-community systems (48%). 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 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 private (52%), local government (38%), state government (8.3%) and federal government (2.1%).