Not health advice. Contact your local water utility for concerns.
Data from EPA Water Quality Reports. For official information, contact your water utility or health department.
North Little Rock, Arkansas Water Quality Report
Comprehensive water safety analysis • Updated February 2026
North Little Rock's water quality score of 75/100 indicates fair quality with several contaminants worth monitoring.
•All 2 historical violation(s) in North Little Rock have been resolved.
Water Safety Overview
Some Concerns. Consider a water filter for extra protection. Score: 75/100.
Want to understand your score better? Learn how scores are calculated →
All Detected Contaminants
9 contaminants tested • EPA SDWIS data
| Contaminant | Level Detected | EPA Limit | % of Limit | Status |
|---|---|---|---|---|
Total Trihalomethanes | 23.02 ug/L | 80.00 ug/L | 28.8% | Safe |
Haloacetic Acids | 15.23 ug/L | 60.00 ug/L | 25.4% | Safe |
Nitrate | 2.43 mg/L | 10.00 mg/L | 24.3% | Safe |
Arsenic | 0.0018 mg/L | 0.010 mg/L | 18.5% | Safe |
Copper | 0.202 mg/L | 1.30 mg/L | 15.5% | Safe |
Fluoride | 0.615 mg/L | 4.00 mg/L | 15.4% | Safe |
Nitrite | 0.146 mg/L | 1.00 mg/L | 14.6% | Safe |
Mercury | 0.0002 mg/L | 0.0020 mg/L | 10.2% | Safe |
Chromium | 0.0057 mg/L | 0.100 mg/L | 5.7% | Safe |
Detailed Water Quality Analysis for North Little Rock
In-depth assessment of your municipal water supply
The water quality in North Little Rock, Arkansas has been comprehensively evaluated using data from the EPA's Safe Drinking Water Information System (SDWIS) and local water utility reports. Our analysis examines 9 distinct contaminants across multiple categories including inorganic chemicals, disinfection byproducts, microorganisms, and radionuclides. With an overall quality score of 75 out of 100 (Grade: B), North Little Rock's water supply meets minimum EPA requirements but shows areas for improvement.
Water Source and Treatment
North Little Rock's primary water system, NORTH LITTLE ROCK WATER SYSTEM, serves approximately 63,990 residents. The water is sourced from a combination of surface and groundwater sources. Groundwater is generally naturally filtered through soil and rock layers, though it may contain elevated levels of minerals and naturally occurring contaminants like arsenic or radon.
Contaminant Profile Overview
Of the 9 contaminants analyzed in North Little Rock's water supply, 9 (100%) are present at safe levels below 50% of EPA Maximum Contaminant Levels (MCLs). No contaminants currently exceed EPA safety limits. The most common categories of concern in municipal water supplies include disinfection byproducts formed during the chlorination process, heavy metals like lead that can leach from aging infrastructure, and naturally occurring contaminants like arsenic or radium that vary by geographic region.
Regulatory Compliance Status
North Little Rock's water system has a compliance history with 2 documented EPA violations. All historical violations have been addressed and resolved. Violations can range from monitoring and reporting failures to actual exceedances of contaminant limits. Water utilities are required by law to notify customers of any violations that may affect health and to take corrective action to return to compliance.
Infrastructure Considerations
Water quality at the tap can differ from quality at the treatment plant due to distribution system conditions. Homes built before 1986 may have lead service lines or lead solder in plumbing that can contribute to lead exposure. Older galvanized pipes can harbor bacteria and release metals. Running cold water for 30 seconds to 2 minutes before drinking or cooking helps flush stagnant water from pipes. Residents in older homes should consider testing their water directly at the tap to assess any additional contamination from household plumbing, as EPA monitoring typically occurs at distribution points rather than individual residences.
Health Implications of North Little Rock Water Quality
Understanding potential health effects for residents
Vulnerable Populations
Certain groups face elevated health risks from water contaminants and should take extra precautions. Pregnant women are particularly vulnerable as contaminants like lead and nitrates can affect fetal development, potentially causing developmental delays and birth defects. Infants and young children are at heightened risk because their developing bodies absorb contaminants more readily and are more susceptible to their effects; lead exposure in children can cause irreversible cognitive impairment and behavioral problems. Elderly individuals and those with compromised immune systems (including cancer patients, organ transplant recipients, and HIV/AIDS patients) are more susceptible to waterborne pathogens and may experience severe illness from microorganisms that healthy adults can tolerate. Individuals with kidney disease should be aware of fluoride and other mineral levels, as impaired kidney function affects the body's ability to filter these substances.
Arsenic Health Effects
Arsenic has been detected in North Little Rock's water supply. Long-term arsenic exposure, even at levels near EPA limits, is associated with increased risk of skin, lung, bladder, kidney, and liver cancers. Arsenic exposure can also cause cardiovascular disease, diabetes, and neurological effects. Skin changes like thickening and pigmentation may indicate chronic exposure. Reverse osmosis filtration is highly effective at removing arsenic from drinking water.
Nitrate Health Effects
Elevated nitrate levels in North Little Rock's water pose particular risk to infants under six months. Nitrates can cause methemoglobinemia ("blue baby syndrome"), a condition where the blood cannot carry sufficient oxygen. Symptoms include bluish skin color, shortness of breath, and in severe cases, death. Formula-fed infants are at greatest risk. Pregnant women should also limit nitrate exposure. Boiling water does NOT remove nitrates—it actually concentrates them. Reverse osmosis or distillation systems effectively remove nitrates.
General Recommendations
Based on North Little Rock's water quality profile, residents should consider the following protective measures: A water filter can provide additional protection, particularly for vulnerable household members. Always use cold water for drinking and cooking, as hot water can contain higher levels of metals from pipes. Have your home tested if it was built before 1986 to check for lead plumbing. Review your annual Consumer Confidence Report (water quality report) from your utility to stay informed about local water quality trends. Pregnant women, families with young children, and immunocompromised individuals should consult healthcare providers about water safety precautions specific to their situation.
Recommended Water Filters for North Little Rock
Based on detected contaminants
Reverse Osmosis System
Best for North Little Rock. Removes 95-99% of contaminants including heavy metals, PFAS, and nitrates.
- ✓ Removes arsenic
- ✓ Removes nitrates
- ✓ Removes total dissolved solids
Activated Carbon Filter
Good for North Little Rock. Removes chlorine, improves taste, and filters many organic compounds.
- ✓ Removes chlorine and chloramine
- ✓ Improves taste and odor
- ✓ Filters pesticides and VOCs
EPA Compliance History
Past violations for North Little Rock's water system
other
Fluoride - 2/4/2021
Resolvedother
Haloacetic Acids - 2/4/2024
ResolvedWater System Information
NORTH LITTLE ROCK WATER SYSTEM
- PWS ID:
- AR255675
- Population Served:
- 63,990
- Water Source:
- groundwater
North Little Rock Water Quality Score
Based on EPA contaminant data and compliance records
Positive Findings
- Good overall water quality
- Most contaminants within safe limits
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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