Washington County, Arkansas — public water systems
At a glance
14 active public water systems are filed under Washington County, Arkansas in EPA's SDWIS records, together reporting 287,719 people served. The largest is Fayetteville Waterworks, which reports serving 116,398 people. 12 are community water systems serving people where they live; the other 2 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
14
Population served
287.7K
Community systems
12
Groundwater share
7.1%
How does Washington County compare with other Arkansas counties?
Washington County has the 16th-most active public water systems among the 83 counties listed for active Arkansas systems in EPA records; among the 72 with 3 or more systems, the median has 10. Its systems report 287,719 people served in total, the 2nd-largest county figure in the state and 9.4% of the statewide total. The average system here reports serving 20,551 people, about 5.7 times the Arkansas average of 3,592. 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 purchased surface water (11, 79%), surface water (2, 14%) and purchased groundwater (1, 7.1%). Overall, 7.1% rely mainly on groundwater (including purchased groundwater) and 93% on surface water, compared with 63% and 37% across Arkansas. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. The county's largest system, Fayetteville Waterworks, draws primarily on purchased surface water.
What kinds of water systems operate in Washington County?
Washington County's active systems break down as 12 community systems (86%), 1 non-transient non-community systems (7.1%) and 1 transient non-community systems (7.1%). 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 (86%) and private (14%).
Water systems in Washington County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Fayetteville Waterworks | Washington | 116,398 | Community | Purchased surface water |
| 2 | Springdale Water Utilities | Washington + 1 more | 98,948 | Community | Purchased surface water |
| 3 | Washington Water Authority Wwa | Washington + 1 more | 20,140 | Community | Purchased surface water |
| 4 | Madison Co Water Facilities Bd | Washington + 2 more | 11,435 | Community | Purchased surface water |
| 5 | Prairie Grove Waterworks | Washington | 9,615 | Community | Surface water |
| 6 | Tontitown Waterworks | Washington | 7,355 | Community | Purchased surface water |
| 7 | Lincoln Waterworks | Washington | 6,690 | Community | Purchased surface water |
| 8 | Mount Olive Water Association | Washington + 1 more | 6,308 | Community | Purchased surface water |
| 9 | Elkins Waterworks | Washington | 3,905 | Community | Purchased surface water |
| 10 | West Fork Waterworks | Washington | 3,178 | Community | Purchased surface water |
| 11 | Veterans Health Care System of the Ozark | Washington | 2,254 | Non-transient non-community | Purchased surface water |
| 12 | Winslow Waterworks | Washington | 1,433 | Community | Purchased surface water |
| 13 | Brentwood Rest Area Wvm | Washington | 30 | Transient non-community | Purchased groundwater |
| 14 | Benton-Washington Regional Pwa | Washington + 1 more | 30 | Community | Surface water |
Washington County water systems: frequently asked questions
How many public water systems are in Washington County, Arkansas?
EPA's SDWIS records file 14 active public water systems under Washington County, Arkansas: 12 community systems (86%), 1 non-transient non-community systems (7.1%) and 1 transient non-community systems (7.1%).
Who supplies drinking water in Washington County, AR?
The largest community water systems filed under Washington County are Fayetteville Waterworks (116,398 people served), Springdale Water Utilities (98,948 people served) and Washington Water Authority Wwa (20,140 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 14 active public water systems in Washington County, 7.1% draw mainly on groundwater and 93% on surface water, counting purchased supplies. The largest system, Fayetteville Waterworks, uses purchased surface water.
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. 12 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 Arkansas 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, Arkansas”, https://aquacensus.com/water-systems/arkansas/washington (data as of October 1, 2026).