Apache Junction, AZ: 36 Health Violations — 71/100 (2026)
6 ZIP codes · 5 water systems · Updated 2026-06-03
Tap water in Apache Junction, AZ scores well — low violation counts, above-average safety grade.
How Apache Junction Compares
Data: EPA SDWIS Last verified: 2026-06-03
Water Quality Map: Apache Junction, AZ
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Score Distribution
Distribution of water safety grades across Apache Junction.
Apache Junction Water: The Quick Version
- Your city's water systems recorded 204 violations in the past 5 years.
- Average lead level: 0.0027 mg/L.
- Estimated remediation: $2,017 per household.
- CDC health risk index: 13.46 — above typical levels.
Water Systems Serving Apache Junction
Multiple utilities divide Apache Junction, AZ's water service — 3 leading providers among 5 on the federal register.
Overview
We track water quality and home safety data for 6 ZIP codes in Apache Junction, Arizona (population ~54,919), covering 5 community water systems serving approximately 543,938 people region-wide.
6 of 6 ZIP codes (100%) have recorded EPA violations. 36 health-based violations documented.
Home Safety Score
Average Home Safety Score for Apache Junction: B (71/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Apache Junction water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0027 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 6 ZIP codes
- Zone 3 (Low): 0 ZIP codes
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Chlorite | Disinfection Byproducts | 70 | 6 |
| Stage 2 DBP Rule | Treatment Technique | 28 | 6 |
| Consumer Confidence Report Rule | Reporting | 28 | 6 |
| Contaminant 1009 | Other | 21 | 6 |
| Contaminant 0700 | Other | 21 | 6 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 85117 | B | 34 | 6 | Arizona Water Company - Apache Junction |
| 85119 | C | 34 | 6 | Arizona Water Company - Apache Junction |
| 85120 | C | 34 | 6 | Arizona Water Company - Apache Junction |
| 85178 | B | 34 | 6 | Arizona Water Company - Apache Junction |
| 85218 | B | 34 | 6 | Arizona Water Company - Apache Junction |
| 85220 | B | 34 | 6 | Arizona Water Company - Apache Junction |
All ZIP Codes in Apache Junction
- 85117 [B] — 34 violations ⚠
- 85119 [C] — 34 violations ⚠
- 85120 [C] — 34 violations ⚠
- 85178 [B] — 34 violations ⚠
- 85218 [B] — 34 violations ⚠
- 85220 [B] — 34 violations ⚠
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Updated daily.
CDC Health Data for Apache Junction
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Key Contaminants Detected in Apache Junction
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Apache Junction: Remediation Cost in Perspective
While no remediation project is entirely without cost, the relationship between estimated remediation and property values in Apache Junction is notably favorable — the equity share is small enough that the household financial perspective is one of proportionality rather than pressure, and most homeowners can treat it as routine planning rather than a significant financial event.
Remediation costs in Apache Junction are relatively low compared to home values. The $1,000–$3,800 estimated range is a small fraction of median property value. Home values are 15% below the Arizona average.
Protecting Children from Lead in Apache Junction
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Lead risk in Apache Junction appears low overall, but individual homes may differ. Testing is the only way to confirm your water's lead content.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Climate-Related Water Risk for Apache Junction
38 FEMA flood insurance claims are on file for Apache Junction, and 50% of local ZIP codes fall within federally designated flood zones — enough to put flood exposure on the planning radar, though short of the concentrated-risk threshold where treatment-system vulnerability becomes a primary consideration.
Apache Junction has a moderate flood history with 38 FEMA claims averaging $45,171 per payout. 50% of ZIP codes fall within FEMA flood zones. Flood events can contaminate drinking water and overwhelm treatment systems.
How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. Flood damage can add significantly to the estimated <strong>$2,017</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
Deep Dive Reports
Detailed analysis for Apache Junction, AZ