Is Humnoke, AR Tap Water Safe to Drink?
Graded C, with 46 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
60.7/100
waterverge.com Humnoke, AR — Water Quality Report
Humnoke's drinking water received a grade of C (60.7 out of 100), indicating fair water quality. The city's 2 water systems serve approximately 517 residents using purchased ground water.
Lead levels were measured at 1.0 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.
The system has 75 violations on record, including 10 health-based violations. 46 remain unresolved.
What to know about Humnoke's water
Humnoke ranks #297 out of 345 cities in Arkansas for water quality, placing it among the lowest-rated in the state.
Humnoke purchases its water from a regional wholesaler, meaning quality depends on both the supplier's treatment and the local distribution system's condition.
As a small community water system, Humnoke may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
The system has seen 13 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.
Water quality score
See methodology →Is Humnoke, AR water safe to drink?
Humnoke's drinking water has significant quality concerns based on EPA testing data. With a grade of C (60.7/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 2 water systems serve approximately 517 residents using groundwater (wells).
Recent water quality updates for Humnoke
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Humnoke's water quality assessment. Grade: C (60.7/100).
Federal disaster declaration (FEMA DR-4873). Flood event — may have impacted local water infrastructure.
Contaminants: Revised Total Coliform Rule.
Contaminants: Revised Total Coliform Rule.
Contaminants: Chlorine.
Federal disaster declaration (FEMA DR-3541). Hurricane event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Humnoke's water supply.
Well within EPA limits.
Violation history
Humnoke's water system has 75 total violations on record, including 10 health-based violations. 46 remain unresolved. 13 violations were issued in the last 5 years.
Flood & environmental risk
Lonoke County has experienced 6 federally declared disasters since 1969. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies. Local water sources include Salt Bayou Ditch Nr Humphrey, Bayou Meto Nr Stuttgart, Crooked Creek.
Where does Humnoke's water come from?
Humnoke's drinking water comes from groundwater (wells), supplied by 2 water systems serving approximately 517 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Salt Bayou Ditch Nr Humphrey (river), Bayou Meto Nr Stuttgart (river), Crooked Creek (river).
What Humnoke residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Humnoke's water.
Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.
Humnoke's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.
Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.
Top contaminants to know
View all ↓Violation summary
Violations & advisories
Drought conditions
D3 — extreme droughtLonoke County is currently in D3 (extreme drought) per the U.S. Drought Monitor (week of May 5, 2026). Drought can elevate disinfection-byproduct (TTHM/HAA5) levels and taste/odor issues as utilities draw from lower reservoirs.
Source: U.S. Drought Monitor, updated weekly by NDMC, USDA, and NOAA.
Flood & disaster history
Lonoke County has experienced 6 federally declared disasters since 1969. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.
Full contaminants report
| Contaminant | Detected Level | EPA Limit | Unit | Category | Status |
|---|---|---|---|---|---|
| Lead (90th percentile) LeadHeavy Metal A toxic heavy metal that can leach into drinking water from older pipes, solder, and fixtures. No amount of lead in water is considered safe. Health EffectsBrain and nervous system damage in children, kidney damage, high blood pressure, and reproductive problems in adults. EPA Limit15 ppb action level Common SourcesCorrosion of lead pipes, lead solder, brass faucets, and household plumbing. | 1.0 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Humnoke compares by contaminant
Explore where Humnoke ranks among all Arkansas cities for specific contaminants.
Water source & infrastructure
Where Humnoke's water comes from
Humnoke purchases its water supply from a regional wholesale provider rather than treating raw water directly.
Water quality depends on both the wholesaler's treatment standards and the condition of Humnoke's local distribution pipes and storage facilities.
Purchased water systems are common in suburban areas and smaller communities that lack the infrastructure for independent treatment.
The system is operated by local government ownership and serves approximately 517 people through 2 water systems.
Water bodies near Humnoke
Humnoke is located near 3 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Humnoke
| System Name | PWSID | Population | Source |
|---|---|---|---|
| HUMNOKE WATERWORKS | AR0000344 | 292 | GWP |
| COY WATERWORKS | AR0000340 | 225 | GWP |
How Humnoke compares
Full Arkansas rankings →Humnoke's score of 60.7/100 is below the average of 75/100 among major Arkansas cities. It outscores 2 of 10 nearby cities. 8 of 10 nearby cities score higher.
Nearby cities
View Arkansas rankings →About Humnoke, AR
Learn more about your water
Guides and resources related to Humnoke's water quality findings.
Explore water quality across Lonoke
Frequently asked questions
Is Humnoke, AR tap water safe to drink?
Humnoke's water quality earned a grade of C (60.7/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #297 out of 345 cities tested in Arkansas.
What contaminants are in Humnoke's water?
Lead was measured at 1.0 ppb (90th percentile). 75 violations are on record.
How is Humnoke's water quality grade calculated?
The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.
Do I need a water filter in Humnoke?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Humnoke's water come from?
Humnoke's water is sourced from Purchased ground water. The city has 2 water systems serving approximately 517 residents.
What health violations has Humnoke's water system had?
Humnoke has 10 health-based violations on record. The most recent violation was recorded in September 2022. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 46 violations remain unresolved.
Is Humnoke's groundwater at risk of contamination?
Humnoke uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 75 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.
How does Humnoke's water compare to other cities?
Humnoke ranks #297 out of 345 cities in Arkansas (better than 14% of state cities) and #12063 out of 15744 cities nationally (23th percentile). The grade of C reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.