Humnoke Waterworks
EPA ID: AR0000344 · 292 people served · 1 ZIP code
Throughout five consecutive years of federal water monitoring, Humnoke Waterworks recorded zero violations — solid performance for a utility serving 292 people.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Humnoke Waterworks Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Humnoke Waterworks serves a community with a median household income of $47,750 and an estimated 295 residents across its service area. Approximately 72% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Humnoke Waterworks's water is pumped from underground aquifers. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
About 1% of homes in Lonoke County, Arkansas rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in Arkansas
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Humnoke Waterworks (EPA ID: AR0000344) is a community water system in Arkansas that serves approximately 292 people from groundwater sources.
This system serves ZIP code 72072 in Humnoke.
Violation History
Lead & Copper
No Lead and Copper Rule sampling data available for this water system.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
- 72072 — Humnoke
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Humnoke Waterworks (AR0000344) on EPA.gov.
Frequently Asked Questions
Is Humnoke Waterworks water safe to drink?
Based on EPA records, Humnoke Waterworks has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Humnoke Waterworks serve?
Humnoke Waterworks serves approximately 292 people across 1 ZIP code in Arkansas.
Where does Humnoke Waterworks get its water?
The primary water source is groundwater.