Marked Tree Waterworks
EPA ID: AR0000430 · 2,610 people served · 1 ZIP code
ZipCheckup's reading of EPA records for Marked Tree Waterworks (AR0000430): 4 violations recorded with unresolved status in the SDWIS data used. Open violations at Marked Tree Waterworks number 4 in the EPA compliance data, for a system that serves about 2,610 people. An open status describes how each violation is logged in the federal record; it is not a measurement of what comes out of any individual tap.
Data: EPA SDWIS
Service Area Map
Coverage area for Marked Tree Waterworks Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Marked Tree Waterworks have a median household income of $46,250 and about 2,542 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 70% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: On average, 71% 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?
Marked Tree Waterworks'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.
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
Marked Tree Waterworks (EPA ID: AR0000430) is a community water system in Arkansas that serves approximately 2,610 people from groundwater sources.
This system serves ZIP code 72365 in Marked Tree.
Violation History
Status breakdown for accepted records with record years 2021-2026: 0 resolved, 2 archived, 0 addressed, and 4 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 |
|---|---|---|---|
| December 1, 2025 | Revised Total Coliform Rule | Non-health-based | Archived |
| November 1, 2025 | Revised Total Coliform Rule | Non-health-based | Archived |
| November 1, 2025 | Revised Total Coliform Rule | Non-health-based | Unaddressed (current) |
| October 1, 2025 | Revised Total Coliform Rule | Non-health-based | Unaddressed (current) |
| July 1, 2025 | Consumer Confidence Rule | Non-health-based | Unaddressed (current) |
| July 1, 2024 | Lead and Copper Rule | Non-health-based | Unaddressed (current) |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Revised Total Coliform Rule | Monitoring & Reporting | 4 | No |
| Lead and Copper Rule | 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: 0.009 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.
Radon Risk in Service Area
1 of 1 ZIP records with known zones is in EPA Radon Zone 3.
The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.
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.
- 72365 - Marked Tree
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Marked Tree Waterworks (AR0000430) on EPA.gov.
Frequently Asked Questions
Is Marked Tree Waterworks water safe to drink?
The accepted 2026Q2 ECHO snapshot shows 4 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 Marked Tree Waterworks serve?
Marked Tree Waterworks serves approximately 2,610 people across 1 ZIP code in Arkansas.
Where does Marked Tree Waterworks get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Marked Tree Waterworks (AR): 6 EPA Violations. https://zipcheckup.com/water-system/ar0000430/
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author = {{ZipCheckup}},
title = {{Marked Tree Waterworks (AR): 6 EPA Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/ar0000430/}
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What You Can Do
Test your water
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Check your specific ZIP code
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Contact your utility
Marked Tree Waterworks (EPA ID: AR0000430) - request the latest Consumer Confidence Report or ask about specific contaminants.