State Hub
Arkansas Water Quality
501
Utilities in database
3.0M
Residents served
1
With open violations
171
PFAS monitored
Quick Answer
Arkansas public drinking water is served by 501 EPA-tracked water systems, providing service to approximately 3.0 million residents through public utilities. 1 of those systems currently have open health-based violations on record in the EPA federal database. 171 systems have official PFAS monitoring records from the EPA UCMR 5 program (2023–2025). About 32% of AR residents use private wells, which fall outside federal utility compliance monitoring.
1 Arkansas water system has an open health-based violation recorded in EPA SDWIS. An open violation means a contaminant exceeded a federal limit and the violation has not been formally resolved in the federal database. Check individual utility pages for current status.
Open Health-Based Violations in Arkansas
Records sourced from EPA SDWIS. A record may be under review or resolved at the utility level but not yet updated in federal records. Water Utility Report does not determine whether water is safe to drink.
Drinking Water in Arkansas
Arkansas has 501 community water systems serving approximately 3.0 million residents. Primary water sources include surface water. The most commonly reported contaminants include disinfection byproducts, nitrates. 32% of Arkansas residents rely on private wells. ADH holds primary enforcement authority under the Safe Drinking Water Act.
Highest Risk Utilities
Arkansas systems with open health-based violations in EPA records.
Safest Large Utilities
Arkansas systems with no open health violations serving 10,000+ residents.
Utilities in Arkansas
176–200 of 501Furlow Public Water Authority
AR0000645 · 3,073 served
Concord Water & Sewer Pfb of Crawford Co
AR0000147 · 3,071 served
Buffalo Island Reg Water Dist
AR0000671 · 3,055 served
Cave City Waterworks
AR0000526 · 3,045 served
Grange-calamine Water Assoc
AR0000759 · 3,015 served
Brinkley Waterworks
AR0000384 · 2,992 served
Gurdon Waterworks
AR0000087 · 2,988 served
Oak Grove Water Association
AR0000146 · 2,963 served
Judsonia Waterworks
AR0000582 · 2,956 served
Pangburn Waterworks
AR0000580 · 2,936 served
Independence Jackson Regional
AR0000774 · 2,922 served
Bald Knob Waterworks
AR0000584 · 2,911 served
Bull Shoals Water System
AR0000352 · 2,835 served
Maumelle Water Corporation
AR0000464 · 2,832 served
Harrisburg Waterworks
AR0000431 · 2,824 served
Redfield Waterworks
AR0000279 · 2,823 served
Smackover Waterworks
AR0000555 · 2,821 served
Danville Waterworks
AR0000603 · 2,810 served
Dota Public Water Authority
AR0000698 · 2,722 served
Se Bradley Co Water Assn
AR0000870 · 2,713 served
Helena Water Sewer
AR0000419 · 2,708 served
Hoxie Water Department
AR0000301 · 2,666 served
Yellville Waterworks
AR0000356 · 2,630 served
Bald Knob North Water Assoc
AR0000689 · 2,624 served
Pleasant Grove
AR0000720 · 2,613 served
Key Contaminant Concerns in Arkansas
These contaminants appear most frequently in Arkansas utility records or pose elevated risk in this region based on EPA data.
Nitrates
Nitrate (NO₃⁻) is a nitrogen-containing compound that forms naturally through the decomposition of organic matter. At elevated concentrations — almost always caused by human activity — nitrate is converted in the digestive system to nitrite, which then reacts with hemoglobin to form methemoglobin, a form of hemoglobin that cannot carry oxygen. In the body, nitrite also reacts with amines in food to form N-nitroso compounds (nitrosamines) — known carcinogens classified by the IARC as Group 2A (probable human carcinogens). The United States applies over 23 million tons of nitrogen fertilizer annually, making agricultural runoff the dominant source of nitrate contamination in U.S. groundwater.
EPA limit: 10 mg/L
DBPs
When utilities add chlorine to water to kill pathogens, it reacts with dissolved organic matter — leaves, algae, soil — to produce disinfection byproducts (DBPs). Over 600 DBPs have been identified. The EPA regulates two groups: total trihalomethanes (TTHMs, including chloroform) and haloacetic acids (HAA5). DBP levels tend to be highest in surface water systems and in warm months when organic matter is elevated.
EPA limit: 80 µg/L (TTHMs) / 60 µg/L (HAA5)
Independent Water Testing
Find a certified lab in Arkansas
Utility compliance records show what water systems report to the EPA. An independent test from a certified laboratory confirms what's actually in your tap water. Arkansas labs can test for PFAS, lead, nitrates, bacteria, and dozens of other contaminants.
Explore Water Quality in Arkansas
Furlow Public Water Authority
Violation history, PFAS records, and official source links
Concord Water & Sewer Pfb of Crawford Co
Violation history, PFAS records, and official source links
Buffalo Island Reg Water Dist
Violation history, PFAS records, and official source links
PFAS monitoring records — Arkansas
171 water systems in Arkansas with EPA UCMR 5 records
Active drinking water violations
1 open health-based violation on record — view official EPA SDWIS data
Lead in Arkansas drinking water
State-specific lead data, violation utilities, and testing guidance
PFAS in Arkansas drinking water
State-specific PFAS data, MCL context, and treatment options
Certified water testing labs in Arkansas
Labs certified for PFAS (EPA 533/537.1), lead, and bacteria testing
Water treatment options
Reverse osmosis, activated carbon, and filtration guides with cost ranges
Data sources and methodology
How WaterUtilityReport.com sources and validates official EPA data
Common Questions About Arkansas Drinking Water
Does Arkansas drinking water have PFAS?
171 Arkansas water systems have EPA UCMR 5 PFAS monitoring records (2023–2025)
Which Arkansas water utilities have open violations?
1 systems have open health-based violations in EPA SDWIS — search for your utility
How do I test my water in Arkansas?
State-certified labs for PFAS (EPA 533/537.1), lead, nitrate, and bacteria testing
What treatment removes PFAS from AR tap water?
Reverse osmosis removes PFAS, lead, arsenic, and nitrates — cost, maintenance, and NSF certification explained
What do Arkansas PFAS records tell me about my water?
EPA limits, health context, and what UCMR 5 detection above MRL means for your water
How is Arkansas water quality data sourced here?
EPA SDWIS violations, UCMR 5 PFAS records, and CCR data — sources, accuracy notes, and limitations
Arkansas Water FAQs
Data sources: Utility compliance and violation data from EPA SDWIS (Safe Drinking Water Information System). PFAS monitoring records from EPA UCMR 5 (Unregulated Contaminant Monitoring Rule 5, 2023–2025). Contaminant data from EPA and ATSDR public references. This page summarizes public records — it is not a compliance determination. Methodology →
Last updated: 2026-04-22