Little Rock
AR

Is Little Rock, AR Tap Water Safe to Drink?

Little Rock tap water meets federal Safe Drinking Water Act standards but 3 of 13 ZIP codes show detections above EPA health guidelines, primarily for lithium. A certified filter is recommended for households that want an additional layer of protection.

7Water systems
13ZIP codes
23.1%ZIPs above EPA guideline
Metro areaLittle Rock-North Little Rock-Conway, AR
Latest data2025-10-22

Where Does Little Rock Get Its Water?

Water in Little Rock, AR is provided by 7 public water systems: BRYANT WATERWORKS, CABOT WATERWORKS, CENTRAL ARKANSAS WATER, EAST END WATER, SALEM WATER ASSOCIATION, SARDIS WATER ASSOCIATION and SHANNON HILLS WATER DEPT.

How Is Little Rock Tap Water Treated?

Treated water is disinfected using chloramines and free chlorine. Treatment includes air stripping, conventional treatment (coagulation, flocculation, and filtration), groundwater disinfection, post-ozone biofiltration and slow sand filtration.

What's in Little Rock Tap Water?

The following contaminants were detected most frequently in Little Rock public water systems. 3 of 13 ZIP codes showed detections above EPA health guidelines.

ContaminantPeak detectedEPA guidelineZIPs detectedStatus
lithium 26 µg/L 10 µg/L 3 ZIPs Above guideline
PFTrDA 0.007 µg/L — 0 ZIPs Within guideline
11Cl-PF3OUdS 0.005 µg/L — 0 ZIPs Within guideline
PFBA 0.005 µg/L — 0 ZIPs Within guideline
6:2 FTS 0.005 µg/L 0.005 µg/L 10 ZIPs Within guideline

Health Risk Profile for Little Rock

Based on EPA monitoring data, 3 of 13 ZIP codes in Little Rock have recorded detections above EPA health guidelines. Sensitive populations such as infants, pregnant individuals, and those with weakened immune systems may benefit from an additional layer of protection such as a certified point-of-use filter.

Best Broad-Spectrum Filters for This Water Profile

This city profile includes PFAS detections, chlorine disinfection, and other dissolved contaminants. Reverse osmosis (RO) systems certified under NSF/ANSI 58 provide broad reduction coverage; for PFAS specifically, confirm NSF/ANSI P473 or equivalent PFAS reduction certification.

Waterdrop G3P600 Reverse Osmosis System
Under-sink RO system

8-stage tankless RO system certified to NSF/ANSI 58, reduces 1,000+ contaminants including PFAS, lead, arsenic, fluoride, and nitrates.

See recommendations matched to your exact address: choose your ZIP code below.

Frequently Asked Questions about Little Rock Tap Water

Is Little Rock tap water safe to drink?

Little Rock tap water meets Safe Drinking Water Act requirements but 3 of 13 ZIP codes show contaminant levels above EPA health-based guidelines. A certified point-of-use filter adds an extra layer of protection.

What contaminants are in Little Rock tap water?

The most commonly detected contaminants in Little Rock water systems include: lithium, PFTrDA, 11Cl-PF3OUdS. See the ZIP-level reports for exact measurements and EPA guideline comparisons.

Where does Little Rock get its drinking water?

Little Rock receives water from 7 public water systems, including BRYANT WATERWORKS.

Do I need a water filter in Little Rock?

If your ZIP code is among those with detections above EPA health guidelines, choose a filter certified for the specific contaminants shown in your ZIP report. Reverse osmosis is generally the broadest option for PFAS, lithium, and many other dissolved contaminants.

How often is Little Rock tap water tested?

Public water systems in Little Rock are required by the EPA to test for regulated contaminants on schedules ranging from daily (for microbials and disinfectants) to annual or triennial (for many chemical contaminants). Results are published in annual Consumer Confidence Reports (CCRs). The data on this page reflects the most recent available EPA monitoring results, with the latest sample date of 2025-10-22.

Tap water reports by ZIP in Little Rock

Water utilities serving Little Rock, AR

Service area boundaries are approximate and based on state filings or modeled estimates. Contact your utility to confirm exact service at a specific address.

Modeled boundaries are shown with a dashed outline.

Also covers / overlaps with