Apache Junction Water District
EPA ID: AZ0411039 · 15,610 people served · 6 ZIP codes
Unlike many utilities its size, Apache Junction Water District carries a violation-free five-year record — no EPA notices, no MCL exceedances, serving 15,610 people.
Data: EPA SDWIS Last verified: 2026-04-02
Compliance Trajectory
Worsening · Risk tier: High · 95% chance of violation in next 12 months
Violations went from 12 (2022) to 6 (2025). The pattern suggests growing compliance challenges.
Service Area Map
Coverage area for Apache Junction Water District Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Apache Junction Water District serves a community with a median household income of $61,935 and an estimated 54,919 residents across its service area.
Environmental Justice Note: 43% 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?
Apache Junction Water District's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.
About 1% of homes in Pinal County, Arizona 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 Arizona
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
Apache Junction Water District (EPA ID: AZ0411039) is a community water system in Arizona that serves approximately 15,610 people from surface water sources.
This system provides water to 6 ZIP codes across 1 community.
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: 2 ZIP codes confirmed via EPA Community Water System Service Area Boundaries v3 plus 4 additional ZIPs inferred from SDWIS registry data. The EPA-confirmed set is the most reliable; SDWIS-inferred entries may be narrower than the real deployment area.
- 85117 — Apache Junction
- 85119 — Apache Junction
- 85120 — Apache Junction
- 85178 — Apache Junction
- 85218 — Apache Junction
- 85220 — Apache Junction
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Apache Junction Water District (AZ0411039) on EPA.gov.
Frequently Asked Questions
Is Apache Junction Water District water safe to drink?
Based on EPA records, Apache Junction Water District has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Apache Junction Water District serve?
Apache Junction Water District serves approximately 15,610 people across 6 ZIP codes in Arizona.
Where does Apache Junction Water District get its water?
The primary water source is surface water.
Federal UCMR5 PFAS Monitoring: Tested Clean
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). No PFAS compounds were detected.
Current MCL reflects the lowest state-enforceable limit (NYS 10 ppt for PFOA/PFOS, effective August 2020). The federal final MCL of 4 ppt for PFOA/PFOS (EPA April 2024 rule) is not enforceable until April 2029. Detections above 4 ppt but below 10 ppt are below current MCL but above the future federal limit.
Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) — per-system federal sampling, 2023–2025. EPA UCMR5 monitoring program →
How Water Systems Appear in Rankings
Water systems are evaluated by violation history, contaminant detections, and service population. Larger systems with more service connections appear in more rankings.
- #15 / 50 Highest Exposure Burden (Arizona)