Water Quality in Fountain Hills, AZ: 14 Violations — Grade C
Grade C · Score 66/100 · 1 water system · Updated 2026-05-03
Fountain Hills's water has moderate compliance issues. Residents in affected areas should consider filtration.
Data: EPA Safe Drinking Water Information System (SDWIS) Last verified: 2026-05-03
Fountain Hills, AZ has 14 violations in the EPA compliance history — breakdown below.
Water Quality by ZIP Code in Fountain Hills
Water quality varies across Fountain Hills's 2 ZIP codes. Check your specific ZIP for detailed contaminant data.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 85269 | C | 65 | 7 | 0 | View report → |
| 85268 | C | 67 | 7 | 0 | View report → |
Water Quality Overview
Fountain Hills, Arizona receives a water quality grade of C with an overall score of 66 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).
The 1 water system serving Fountain Hills have accumulated 14 EPA violations (all monitoring/reporting type). These violations are tracked across 2 ZIP codes serving approximately 26,026 people.
What Grade C Means
A grade of C indicates moderate compliance issues. Fountain Hills's water systems have some violations that warrant attention. While the water may still be safe for most people, residents in affected ZIP codes should consider additional testing or filtration.
Lead Levels
The average 90th percentile lead level across Fountain Hills water systems is 0.0081 mg/L — within EPA limits. No ZIP codes exceed the EPA lead action level.
Radon Risk
Fountain Hills is in EPA Radon Zone 2 (Moderate risk). Testing is recommended, especially for homes with basements or ground-level living spaces.
Water Systems Serving Fountain Hills
Fountain Hills is served by 1 community water system regulated under the Safe Drinking Water Act. These systems collectively serve approximately 26,026 people across 2 ZIP codes.
Each water system is identified by a Public Water System ID (PWSID) and is required to:
- Test for over 90 regulated contaminants on a regular schedule
- Report results to the EPA and state regulators
- Issue an annual Consumer Confidence Report (CCR) to all customers
- Take corrective action when violations occur
The EPA has taken 10 enforcement actions against water systems serving Fountain Hills. Enforcement actions range from informal compliance assistance to formal orders and penalties.
How to Check Your Water in Fountain Hills
Enter your ZIP code on ZipCheckup to see your specific water system data, including contaminant levels, violation history, and safety scores
Request your CCR — your water utility must provide an annual Consumer Confidence Report with detailed test results for all monitored contaminants
Get a home test — certified kits cost $20–$50 and test for lead, bacteria, and common contaminants. Professional lab tests ($150–$400) cover a broader panel
Consider filtration — NSF-certified filters can remove specific contaminants. Reverse osmosis removes the broadest range; activated carbon is effective for chlorine and many organics
Check for advisories — monitor your local utility website and local news for boil water advisories or system alerts
Contaminants Detected in Fountain Hills Water Systems
The following contaminants have been detected or caused violations across Fountain Hills's water systems:
| Contaminant | Category | MCL | Violations | ZIPs Affected | Health-Based |
|---|---|---|---|---|---|
| Barium | Inorganic | 2 mg/L | 6 | 2 | No |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 0.08 mg/L | 2 | 2 | No |
| E. coli | Microbiological | N/A | 2 | 2 | No |
MCL = Maximum Contaminant Level (EPA enforceable standard). Health-based violations indicate levels that may pose direct health risks.
EPA Enforcement History
The EPA and state regulators have taken 5 enforcement actions against water systems serving Fountain Hills. Recent actions:
| Date | Action Type |
|---|---|
| 2024-10-02 | State Order Extension |
| 2024-09-26 | State Informal Action |
| 2023-11-01 | State Informal Action |
| 2023-11-01 | State Order Extension |
| 2023-08-09 | State Order Extension |
Enforcement actions range from informal compliance assistance to formal orders and penalties. The most recent action was on 2024-10-02.
Fountain Hills vs. Nearby Arizona Cities
How Fountain Hills's water quality compares to similar cities in Arizona:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| Fountain Hills | C | 14 | 1 | 26,026 |
| Fort Mcdowell | D | 0 | 1 | 26,026 |
| Sun City West | B | 4 | 1 | 25,796 |
| Fort Mohave | B | 112 | 3 | 26,758 |
Common Questions About Fountain Hills Water
These are the most common questions residents search for about water quality in Fountain Hills, Arizona:
Is Fountain Hills water hard or soft? Water hardness varies by source. Fountain Hills's 1 water system uses a single source. Check your ZIP code report for specific hardness data.
Can I drink Fountain Hills tap water? Fountain Hills's water receives a grade of C (66/100). No health-based violations have been recorded, but home testing is always recommended.
What is the best water filter for Fountain Hills? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.
Fountain Hills vs. Arizona Average
Understanding how Fountain Hills compares to the broader Arizona average helps contextualize your local water quality. Factors like water source, treatment methods, and infrastructure age all contribute to differences between cities in the same state.
To see how individual neighborhoods compare, check the ZIP code reports below — water quality can vary significantly even within Fountain Hills.
ZIP Codes in Fountain Hills
Fountain Hills spans 2 ZIP codes. The ZIP with the lowest water quality score is 85268. Each ZIP code has its own water quality profile based on the specific water system serving that area. Check each ZIP code for detailed contaminant data, violation history, and system information.
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
- Enforcement: EPA ECHO database
- Filter recommendations: NSF/ANSI certified products
Updated daily.