Washington County, Colorado — public water systems
At a glance
6 active public water systems are filed under Washington County, Colorado in EPA's SDWIS records, together reporting 3,731 people served. The largest is Town of Akron, which reports serving 2,379 people. 2 are community water systems serving people where they live; the other 4 are non-community systems, such as schools, workplaces, campgrounds and gas stations with their own supply.
Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.
Active systems
6
Population served
3.7K
Community systems
2
Groundwater share
100%
How does Washington County compare with other Colorado counties?
Washington County has the 57th-most active public water systems among the 113 counties listed for active Colorado systems in EPA records; among the 65 with 3 or more systems, the median has 18. Its systems report 3,731 people served in total, the 52nd-largest county figure in the state and less than 0.1% of the statewide total. The average system here reports serving 622 people, well below the Colorado average of 3,400. 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 Washington County's drinking water come from?
By primary water source, Washington County's active systems draw on groundwater (6, 100%). Overall, all rely mainly on groundwater (including purchased groundwater) and none on surface water, compared with 74% and 26% across Colorado. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Town of Akron, draws primarily on groundwater.
What kinds of water systems operate in Washington County?
Washington County's active systems break down as 2 community systems (33%), 3 non-transient non-community systems (50%) and 1 transient non-community systems (17%). 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 local government (67%) and private (33%).
Water systems in Washington County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Akron Town of | Washington | 2,379 | Community | Groundwater |
| 2 | Otis Town of | Washington | 600 | Community | Groundwater |
| 3 | Woodlin School | Washington | 373 | Non-transient non-community | Groundwater |
| 4 | Arickaree School | Washington | 165 | Non-transient non-community | Groundwater |
| 5 | Lone Star School | Washington | 149 | Non-transient non-community | Groundwater |
| 6 | Washington County Anton Shop | Washington | 65 | Transient non-community | Groundwater |
Washington County water systems: frequently asked questions
How many public water systems are in Washington County, Colorado?
EPA's SDWIS records file 6 active public water systems under Washington County, Colorado: 2 community systems (33%), 3 non-transient non-community systems (50%) and 1 transient non-community systems (17%).
Who supplies drinking water in Washington County, CO?
The largest community water systems filed under Washington County are Town of Akron (2,379 people served) and Town of Otis (600 people served). Which system serves a particular address depends on its service area, which EPA's SDWIS records do not include; a water bill or the local utility can confirm it.
Does Washington County's drinking water come from groundwater or surface water?
Of the 6 active public water systems in Washington County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Town of Akron, uses groundwater.
Where can I find a water quality report for Washington County?
Each community water system must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1, covering the previous calendar year. 2 community systems are filed under Washington County, so the report to look for is the one from the system that supplies your address.
How can I check violations for a water system in Washington County?
Open the system's profile from the list on this page. Each profile shows the most recent Safe Drinking Water Act violations in EPA's records, with plain-English labels and whether each one is resolved. For current compliance status, EPA ECHO is the primary source.
More Colorado water systems
About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Public water systems in Washington County, Colorado”, https://aquacensus.com/water-systems/colorado/washington (data as of October 1, 2026).