Old Union Public Water Authority
EPA ID: AR0000559 · 1,200 people served · 2 ZIP codes
ZipCheckup's reading of EPA records for Old Union Public Water Authority (AR0000559): 3 violations recorded with unresolved status in the SDWIS data used. In EPA records, Old Union Public Water Authority has 3 violations listed as unresolved, with the utility supplying water to approximately 1,200 residents.
Data: EPA SDWIS
Service Area Map
Coverage area for Old Union Public Water Authority Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Old Union Public Water Authority have a median household income of $50,845 and about 29,537 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 60% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: On average, 90% of census tracts in the counties mapped to this service area are designated disadvantaged by the federal Climate and Economic Justice Screening Tool (CEJST, 2022 version). 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?
Old Union Public Water Authority's water is classified in EPA records as a groundwater source. 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.
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
Old Union Public Water Authority (EPA ID: AR0000559) is a community water system in Arkansas that serves approximately 1,200 people from groundwater sources.
This system provides water to 2 ZIP codes across 2 communities.
Violation History
Status breakdown for accepted records with record years 2021-2026: 10 resolved, 2 archived, 2 addressed, and 1 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| April 1, 2023 | Public Notice | Non-health-based | Resolved |
| February 1, 2023 | Revised Total Coliform Rule | Non-health-based | Resolved |
| January 1, 2023 | Revised Total Coliform Rule | Non-health-based | Unaddressed (current) |
| January 1, 2023 | Public Notice | Non-health-based | Resolved |
| October 1, 2022 | Revised Total Coliform Rule | Non-health-based | Addressed (current) |
| October 1, 2022 | Revised Total Coliform Rule | Health-based | Archived |
| July 1, 2022 | Consumer Confidence Rule | Non-health-based | Resolved |
| May 1, 2022 | Public Notice | Non-health-based | Resolved |
| March 1, 2022 | Public Notice | Non-health-based | Resolved |
| February 1, 2022 | Revised Total Coliform Rule | Non-health-based | Archived |
| February 1, 2022 | Revised Total Coliform Rule | Non-health-based | Addressed (current) |
| January 1, 2022 | Lead and Copper Rule | Non-health-based | Resolved |
| October 1, 2021 | Revised Total Coliform Rule | Non-health-based | Resolved |
| February 1, 2021 | Revised Total Coliform Rule | Non-health-based | Resolved |
| January 1, 2021 | Revised Total Coliform Rule | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Revised Total Coliform Rule | MCL Violation, Monitoring & Reporting | 9 | Yes |
| Public Notice | Other (notice or report rule) | 4 | No |
| Public Notice | Monitoring & Reporting | 1 | No |
| Consumer Confidence Rule | Other (notice or report rule) | 1 | No |
Lead & Copper
Latest reported 90th-percentile lead result for this PWSID: 0.006 mg/L (2003-12-31).
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
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: Ask your water utility whether running cold water for 2 minutes is enough to flush your plumbing before drinking.
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 available EPA compliance records for Old Union Public Water Authority (AR0000559) on EPA.gov.
Frequently Asked Questions
Is Old Union Public Water Authority water safe to drink?
The accepted 2026Q2 ECHO snapshot shows 3 current noncompliance records and zero current records classified as health-based. That classification is not a property-specific water test or safety guarantee.
How many people does Old Union Public Water Authority serve?
Old Union Public Water Authority serves approximately 1,200 people across 2 ZIP codes in Arkansas.
Where does Old Union Public Water Authority get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Old Union Public Water Authority (AR): 1 Health Violation. https://zipcheckup.com/water-system/ar0000559/
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title = {{Old Union Public Water Authority (AR): 1 Health Violation}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/ar0000559/}
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What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Old Union Public Water Authority (EPA ID: AR0000559) - request the latest Consumer Confidence Report or ask about specific contaminants.