Johnson Township Water Assoc
EPA ID: AR0000640 · 600 people served · 2 ZIP codes
EPA monitoring data for Johnson Township Water Assoc shows an unblemished five-year compliance history — no violations of any kind have been recorded for this utility, which supplies water to approximately 600 people, covering every reporting cycle without a single MCL exceedance or monitoring lapse.
Data: EPA SDWIS Last verified: 2026-04-02
Compliance Trajectory
Stable · Risk tier: High · 95% chance of violation in next 12 months
Violations went from 3 (2021) to 2 (2025). Violation counts have remained relatively steady.
Service Area Map
Coverage area for Johnson Township Water Assoc Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Johnson Township Water Assoc serves a community with a median household income of $43,582 and an estimated 31,393 residents across its service area. Approximately 59% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 90% of the population in this service area is classified as disadvantaged under EPA's EJScreen criteria. Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
💧 Where Does Your Water Come From?
Johnson Township Water Assoc'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 Union County, Arkansas rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Wastewater Proximity Note: This service area ranks in the 90th percentile nationally for proximity to wastewater discharge points.
Superfund Proximity Note: This service area ranks in the 80th percentile nationally for proximity to Superfund (NPL) sites. Groundwater sources near contaminated sites may face elevated risk from industrial chemicals.
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
Johnson Township Water Assoc (EPA ID: AR0000640) is a community water system in Arkansas that serves approximately 600 people from groundwater sources.
This system provides water to 2 ZIP codes across 2 communities.
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
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by AR or modeled from parcel and building-footprint data.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Johnson Township Water Assoc (AR0000640) on EPA.gov.
Frequently Asked Questions
Is Johnson Township Water Assoc water safe to drink?
Based on EPA records, Johnson Township Water Assoc has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Johnson Township Water Assoc serve?
Johnson Township Water Assoc serves approximately 600 people across 2 ZIP codes in Arkansas.
Where does Johnson Township Water Assoc get its water?
The primary water source is groundwater.