Arkansas Water Quality Report 2026 | Clean Air and Water

Arkansas Water Quality at a Glance

OUR RATING

B-

Generally meets standards,
emerging concerns

PFAS CONCERN

LIMITED DETECTIONS

UCMR-5 + statewide surface-water testing

FILTRATION

RECOMMENDED

Disinfection byproducts

YOUR ACTION

STAY INFORMED

Check 2026 reporting

Is Arkansas Water Safe to Drink?

Generally Yes – Most Arkansas water systems meet federal standards and the state is actively monitoring for emerging contaminants. PFAS in finished drinking water has generally shown limited detections so far in many systems, while statewide testing and reporting continue through 2026. Arkansas also approved $1.8 million to fund its first known statewide surface-water PFAS testing effort. Primary concerns include disinfection byproducts and chromium-6 in some systems. Check our live U.S. boil water notices tracker for any active Arkansas alerts.

⚠️ Key Concerns for Arkansas Residents

PFAS Monitoring: EPA UCMR-5 sampling ran 2023–2025, with data updates and reporting continuing through 2026
Military Bases: Elevated PFAS in some areas near military installations linked to historical firefighting foam use
Disinfection Byproducts: Chloroform, bromodichloromethane, and other TTHMs are regulated and can be higher seasonally in some surface-water systems
Chromium-6: Hexavalent chromium can be present at low levels in some systems; monitoring and treatment vary by utility

Read the full report below for detailed analysis, city-specific data, and actionable recommendations for Arkansas residents.

Arkansas – The Natural State – Water Quality Report 2026: PFAS Testing, Infrastructure Concerns & Safety across your state

Arkansas’s water infrastructure serves approximately 3.0 million residents across diverse geographical regions, from the Ozark Mountains in the north to the Gulf Coastal Plain in the south. The state operates through a complex network of approximately 805 community public water systems, ranging from large utilities like Central Arkansas Water, which serves approximately 450,000 customers across four counties, to smaller rural systems providing essential services to underserved communities. Arkansas’s water sources include the Arkansas River, White River, Mississippi River, and numerous lakes and reservoirs, along with extensive groundwater aquifers that supply both urban centres and agricultural areas.
Despite abundant water resources, Arkansas faces significant infrastructure challenges. The state continues to receive federal infrastructure investments through the Bipartisan Infrastructure Law, including an EPA-announced $53.099 million allocation in 2024 to support drinking water and clean water upgrades, alongside additional revolving-fund financing for system improvements. Arkansas’s commitment to water quality improvement is demonstrated through partnerships between the Arkansas Department of Health (ADH), local utilities, and federal agencies working to ensure safe, reliable water access for all residents while addressing the unique challenges of a state with significant rural and agricultural water demands. For context on how neighbouring states are addressing similar challenges, see our Texas water quality report, Louisiana water quality report, and Tennessee water quality report.

Map of Arkansas with a pin sticking in it

Arkansas Water Quality: Current Status (2025-2026)

Statewide Compliance and Testing

Overall Compliance: Arkansas maintains strong Safe Drinking Water Act compliance across its public water systems, with the large majority meeting federal monitoring and reporting requirements. Stay up to date with our Water Alert News page for any statewide advisories.
PFAS Monitoring: Arkansas participated in EPA’s Unregulated Contaminant Monitoring Rule 5 (UCMR-5), with water systems collecting samples between 2023 and 2025. Data updates and reporting continue through 2026 as results are published and reviewed. See our U.S. water quality overview for national context on PFAS monitoring.
Infrastructure Investment: The state continues to receive Bipartisan Infrastructure Law support for water upgrades, including an EPA-announced 2024 funding allocation of $53.099 million to implement drinking water and clean water infrastructure improvements.

Major Water Sources and Challenges

Arkansas River System: Serves central Arkansas including the Little Rock area through Central Arkansas Water, which provides drinking water to approximately 450,000 residents across Pulaski, Lonoke, Saline, and Grant counties.
Groundwater Dependence: Arkansas has hundreds of groundwater-dependent community water systems, with many smaller systems relying on wells to serve rural residents and communities.
Rural Water Systems: Small and rural utilities face unique challenges with aging infrastructure, limited technical capacity, and higher per-capita costs for compliance with new and emerging regulations.

Emerging Contaminant Response

PFAS Regulation Implementation: New EPA drinking water standards for PFOA and PFOS (4 parts per trillion), finalised in April 2024, require water systems to complete initial monitoring and then meet compliance by 2029. For more on PFAS filtration options, see our water filter solutions guide.
Military Base Contamination: Little Rock Air Force Base and Eaker Air Force Base have documented PFAS contamination concerns, primarily linked to historical firefighting foam use, requiring ongoing monitoring and remediation planning.
Surface Water PFAS Testing: Arkansas approved $1.8 million to fund statewide surface-water PFAS testing to help identify contamination sources and guide future protection strategies, with results informing planning through 2026 and beyond.

Rural and Disadvantaged Communities

Infrastructure Disparities: Rural water systems face disproportionate challenges with aging infrastructure, limited technical capacity, and higher per-capita costs for compliance with new regulations.
Federal Support Programmes: Revolving-fund financing and grant set-asides help ensure funds reach underserved communities most in need of water infrastructure investments.
Technical Assistance Networks: Arkansas Rural Water Association provides training and technical assistance to small and rural utilities, offering resources for compliance and operational support.

Looking Forward: 2026–2030

Arkansas’s water quality landscape is positioned for continued improvement as utilities prepare for federal PFAS standards and leverage infrastructure investments for treatment and distribution upgrades. The state’s proactive PFAS monitoring — now entering the reporting phase through 2026 — combined with ongoing funding and technical assistance, supports progress statewide. However, sustained success will require continued collaboration between regulators, utilities, and communities — especially in rural areas — to maintain affordability while meeting stricter standards and addressing localised contamination risks from military and industrial sources. To see how Arkansas compares with its neighbours, explore our Mississippi, Missouri, and Oklahoma statewide water quality reports.

Recommendations for Arkansas Residents

Know Your Water Source

Contact your water utility to request annual water quality reports and ask about PFAS testing results. The Arkansas Department of Health website provides access to Consumer Confidence Reports for public water systems across the state. You can also check our live U.S. boil water notices tracker for active advisories near you, and visit our Water Alert News page for the latest updates.

Support Infrastructure Investment

Stay informed about local water infrastructure needs and support utility rate structures that enable necessary improvements. Attend public meetings when utilities discuss infrastructure upgrades and treatment investments for emerging contaminants like PFAS.

Consider PFAS-Certified Filtration

For added peace of mind — especially near known PFAS source areas — consider NSF-certified activated carbon (NSF/ANSI 53) or reverse osmosis (NSF/ANSI 58). See our water filter solutions guide for recommendations. Affiliate disclosure: If you choose an RO system, you can view our recommended option here: Waterdrop Reverse Osmosis system.

Report Water Quality Concerns

Contact your local water utility immediately for taste, odour, or colour concerns. Report suspected contamination to the Arkansas Department of Health Engineering Division for investigation and follow-up. Keep an eye on our Water Alert News page for advisories affecting Arkansas.

Practice Water Conservation

Support Arkansas’s water sustainability by implementing conservation measures like efficient irrigation, rainwater harvesting, and low-flow fixtures. Reducing demand helps utilities maintain system reliability and affordability.

Arkansas Cities We Cover

Little Rock Water Quality

Comprehensive analysis of Central Arkansas Water, serving approximately 450,000 customers across four counties including Little Rock. Includes information on water sources, treatment processes, infrastructure modernisation, and emerging contaminant monitoring.

View Little Rock Report

Frequently Asked Questions

Is Arkansas tap water safe to drink in 2026?

Arkansas generally maintains strong compliance with Safe Drinking Water Act requirements, and most public water systems meet federal standards in 2026.

Public water systems test for a range of regulated contaminants (such as microbes, metals, and disinfection byproducts) and provide results in annual Consumer Confidence Reports. Most Arkansas tap water is safe to drink, though residents near known contamination sources — including some military installations — may want to review local PFAS results as UCMR-5 data continues to be published through 2026, and consider optional filtration for extra peace of mind. See our water filter solutions guide for certified options, or our U.S. water quality overview for a national picture.

What are PFAS chemicals and why are they a concern in Arkansas?

PFAS (per- and polyfluoroalkyl substances) are synthetic “forever chemicals” that can persist in the environment for a long time.

Arkansas has documented PFAS concerns at some military installations, including Little Rock Air Force Base and Eaker Air Force Base, linked to historical firefighting foam use. EPA finalised drinking water standards in April 2024 setting very low limits for certain PFAS (including 4 parts per trillion for PFOA and PFOS). Water systems have a phase-in period, with compliance required by 2029. Arkansas is also involved in ongoing PFAS monitoring and statewide surface-water testing, with results being reported and reviewed through 2026. See our Little Rock water quality report for area-specific detail.

How can I find out about my local water quality?

Arkansas residents can access comprehensive water quality information through several resources:

• Annual Water Quality Reports: Contact your water utility directly for their Consumer Confidence Report, which details testing results and any violations or concerns

• Arkansas Department of Health: Visit the ADH drinking water pages for system resources and links to reports and compliance information

• PFAS Testing Data: Many systems participated in EPA’s UCMR-5 monitoring programme, with results being posted and updated through 2026

• Active Advisories: Use our live U.S. boil water notices tracker for any current alerts in your area, and our Water Alert News page for statewide updates

• Rural Water Association: Arkansas Rural Water Association provides resources and support for small and rural utilities across the state

Why does Arkansas have water infrastructure challenges?

Arkansas’s water infrastructure faces several interconnected challenges:

Rural Challenges: Many small and rural water systems face higher per-capita costs and limited technical capacity to implement complex treatment technologies

Funding Needs: Ongoing investment is needed to maintain and replace aging pipes, tanks, and treatment equipment while keeping rates affordable

Groundwater Dependence: Many communities rely on groundwater, requiring ongoing protection of aquifers and wellfields from contamination risks

Emerging Contaminants: New PFAS regulations and monitoring requirements create additional technical and financial burdens, particularly for smaller systems ahead of the 2029 compliance deadline

The state is addressing these challenges through federal infrastructure investments, regulatory oversight by the Arkansas Department of Health, and technical assistance programmes for smaller utilities. See how neighbouring states are tackling the same issues: Texas, Louisiana, and Mississippi.

Quality News About Your Water

Get the comprehensive water quality news coverage you need with our dedicated US Water News Service. From coast to coast, we deliver in-depth reporting and expert analysis on PFAS contamination, EPA regulatory changes, infrastructure developments, and emerging water safety issues affecting communities nationwide. While mainstream media only covers the biggest stories, we provide the detailed, ongoing coverage that helps you understand the full scope of America’s water challenges.

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What’s actually in your tap water? Enter your ZIP code for a full breakdown of contaminants detected in your local supply

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Contaminants of Concern

PFAS “Forever Chemicals”

Source: Historical firefighting foam use at some military facilities, certain industrial sources, and consumer products that can contribute to environmental PFAS over time

Health Effects: Linked in scientific studies to certain cancers and other health concerns; EPA regulates several PFAS at very low levels in drinking water

Current Status: Arkansas water systems participated in EPA’s UCMR-5 monitoring programme through 2025, with reporting and data publication continuing through 2026. EPA Limits: 4 ppt for PFOA and PFOS individually, plus a hazard index approach for certain additional PFAS compounds; full compliance required by 2029. A certified reverse osmosis or activated carbon filter can remove PFAS at home — see our water filter solutions guide for certified options.

Agricultural and Industrial Contaminants

Source: Agricultural runoff, fertiliser and pesticide use, septic systems, and localised industrial activities — risks vary by watershed and aquifer

Health Effects: Varies by contaminant but may include gastrointestinal effects, nitrate risk for infants at high levels, and potential long-term impacts with chronic exposure

Current Status: Arkansas utilities monitor regulated contaminants under the Safe Drinking Water Act, and local results are reported in annual Consumer Confidence Reports. Regulatory Response: Arkansas Department of Health oversight and routine compliance monitoring requirements

Explore More Nearby State & City Water Reports

Arkansas shares water quality challenges with its neighbours across the South-Central region. See how nearby states and cities compare on PFAS monitoring, infrastructure investment, and compliance.

Neighbouring States

Nearby Cities & Key Resources

Please read – our information

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