Little Rock, Arkansas Water Quality Report
Comprehensive water safety analysis • Updated February 2026
Little Rock's water quality score of 69/100 falls below average, with 0 contaminants at concerning levels.
•There are currently 1 unresolved EPA violation(s) for Little Rock's water system.
Water Safety Overview
Some Concerns. Consider a water filter for extra protection. Score: 69/100.
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All Detected Contaminants
8 contaminants tested • EPA SDWIS data
| Contaminant | Level Detected | EPA Limit | % of Limit | Status |
|---|---|---|---|---|
Nitrite | 0.403 mg/L | 1.00 mg/L | 40.3% | Safe |
Nitrate | 3.86 mg/L | 10.00 mg/L | 38.6% | Safe |
Fluoride | 1.28 mg/L | 4.00 mg/L | 32.0% | Safe |
Total Trihalomethanes | 23.52 ug/L | 80.00 ug/L | 29.4% | Safe |
Copper | 0.368 mg/L | 1.30 mg/L | 28.3% | Safe |
Arsenic | 0.0028 mg/L | 0.010 mg/L | 28.1% | Safe |
Lead | 0.0039 mg/L | 0.015 mg/L | 26.2% | Safe |
Mercury | 0.0003 mg/L | 0.0020 mg/L | 17.3% | Safe |
Recommended Water Filters for Little Rock
Based on detected contaminants
Reverse Osmosis System
Best for Little Rock. Removes 95-99% of contaminants including heavy metals, PFAS, and nitrates.
- ✓ Removes lead
- ✓ Removes arsenic
- ✓ Removes nitrates
- ✓ Removes total dissolved solids
Activated Carbon Filter
Good for Little Rock. Removes chlorine, improves taste, and filters many organic compounds.
- ✓ Removes chlorine and chloramine
- ✓ Improves taste and odor
- ✓ Filters pesticides and VOCs
NSF 53 Lead Certification Required
Lead detected in Little Rock. Ensure any filter is NSF/ANSI 53 certified for lead removal.
EPA Compliance History
Past violations for Little Rock's water system
other
Haloacetic Acids - 2/3/2025
other
Fluoride - 2/4/2021
ResolvedMCL
Mercury - 2/4/2024
ResolvedWater System Information
LITTLE ROCK WATER SYSTEM
- PWS ID:
- AR487796
- Population Served:
- 206,807
- Water Source:
- mixed
Little Rock Water Quality Score
Based on EPA contaminant data and compliance records
Positive Findings
- Water quality needs improvement
Protect Your Family's Water
Even with good water quality, many families choose to filter their water for extra peace of mind.
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