Arkansas tap water quality
658 community water systems serving 3.1 million people.
Data: U.S. EPA · How we read the data · How we check it
PFAS: EPA's 2023–2025 testing. Lead: results from the last five years. 447 more systems have no recent lead results in EPA's database.
Largest water systems in Arkansas
- Central Arkansas Water368,455 people · Surface water · ArkansasNo PFAS above limits
- Fayetteville Waterworks116,398 people · Purchased surface water · ArkansasNo PFAS above limits
- Springdale Water Utilities100,795 people · Purchased surface water · ArkansasNo PFAS above limits
- Fort Smith Water Utilities86,209 people · Surface water · ArkansasNo PFAS above limitsAlso: 1 health-based violation since 2016
- Jonesboro Water System81,888 people · Groundwater · ArkansasNo PFAS above limits
- Rogers Water Utilities81,443 people · Purchased surface water · ArkansasNo PFAS above limits
- Hot Springs Utilities75,343 people · Surface water · ArkansasTotal trihalomethanes (TTHM) violation
- Conway Water System65,233 people · Surface water · ArkansasNo PFAS above limits
- Bentonville Water Utilities51,250 people · Purchased surface water · ArkansasNo PFAS above limits
- Texarkana Water Utilities50,815 people · Surface water · ArkansasTotal trihalomethanes (TTHM) violation
- Liberty Utilities43,438 people · Groundwater · ArkansasLithium above screening level
- Bella Vista Poa Water System39,419 people · Purchased surface water · ArkansasTotal trihalomethanes (TTHM) violations
- Jacksonville Waterworks32,875 people · Purchased surface water · ArkansasNo PFAS above limits
- Paragould Municipal Utilities31,188 people · Groundwater · ArkansasLithium above screening level
- Benton Waterworks30,681 people · Surface water · ArkansasNo PFAS above limits
Arkansas cities and towns
- Bella Vista
- Benton
- Bentonville
- Cabot
- Centerton
- Conway
- Fayetteville
- Fort Smith
- Hot Springs
- Jacksonville
- Jonesboro
- Little Rock
- North Little Rock
- Paragould
- Rogers
- Russellville
- Sherwood
- Springdale
- Texarkana
Most health-based violations since 2016
- Hosanna Heights Water52 people · Groundwater · ArkansasColiform bacteria violations
- Pickens Waterworks49 people · Groundwater · ArkansasLead above action levelAlso: Coliform bacteria violation
- Lee County Water Association3,770 people · Purchased groundwater · ArkansasTotal trihalomethanes (TTHM) violationsAlso: Coliform bacteria violation · Lithium above screening level
- Leisure Hills Mobile Home Park Water System113 people · Groundwater · ArkansasNot in EPA's PFAS sampleAlso: 39 health-based violations since 2016
- Moro Waterworks219 people · Purchased groundwater · ArkansasTotal trihalomethanes (TTHM) violations
- Mount Ida Waterworks3,218 people · Purchased surface water · ArkansasTotal trihalomethanes (TTHM) violationsAlso: Haloacetic acids (HAA5) violations
- Fouke Waterworks955 people · Groundwater · ArkansasNot in EPA's PFAS sampleAlso: 32 health-based violations since 2016
- Clarendon Waterworks1,320 people · Groundwater · ArkansasNot in EPA's PFAS sampleAlso: 32 health-based violations since 2016
- Montgomery County Regional Public Works AuthorityWholesale supplier (sells water to other systems) · Surface water · ArkansasTotal trihalomethanes (TTHM) violationsAlso: Haloacetic acids (HAA5) violations
- Danville Waterworks2,810 people · Surface water · ArkansasTotal trihalomethanes (TTHM) violations
- Compton Waterworks1,038 people · Purchased surface water · ArkansasNot in EPA's PFAS sampleAlso: 30 health-based violations since 2016
- Antoine Waterworks563 people · Groundwater · ArkansasNot in EPA's PFAS sampleAlso: 29 health-based violations since 2016
- Lakeside Water Association1,876 people · Purchased surface water · ArkansasTotal trihalomethanes (TTHM) violationsAlso: Haloacetic acids (HAA5) violations
- Delight Waterworks1,577 people · Purchased surface water · ArkansasNot in EPA's PFAS sampleAlso: 29 health-based violations since 2016
- Milltown-Washburn Water Users4,325 people · Purchased surface water · ArkansasTotal trihalomethanes (TTHM) violations
All Arkansas utilities on this site
Every Arkansas system serving 50,000+ people or with PFAS above a federal limit, A to Z. Download all 658 systems as CSV.
- Bentonville Water Utilities
- Central Arkansas Water
- Conway Water System
- Fayetteville Waterworks
- Fort Smith Water Utilities
- Hot Springs Utilities
- Jonesboro Water System
- Rogers Water Utilities
- Springdale Water Utilities
- Texarkana Water Utilities
Questions
Does Arkansas tap water have PFAS?
EPA tested 172 community water systems in Arkansas for 29 PFAS between 2023 and 2025. 1 had at least one regulated PFAS detected, and 0 had an entry-point average above a 2024 federal limit. Those 0 systems serve about 0 people. Systems have until 2029 to meet the limits.
How many Arkansas water systems have violations?
266 systems in Arkansas had at least one health-based violation since 2016 (1,642 violations in total). 208 violations are currently listed as unaddressed.
Which Arkansas water systems are over the lead action level?
7 systems had a lead 90th percentile above the 15 ppb action level in their most recent results from the last five years. Another 447 systems have no lead results in EPA's database from the last five years, including 29 whose last result was above the action level. Lead depends on each home's pipes, so a test of your own tap is the only way to know your level.
Source: U.S. EPA drinking water records and PFAS testing (UCMR 5). How we read the data.