Water Quality in San Simon, AZ: 39 Violations — Grade C
Grade C · Score 58/100 · 1 water system · Updated 2026-05-03
San Simon'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
The compliance history for San Simon, AZ includes 39 water violations on file with the EPA — a federal tally that spans health-based exceedances, monitoring failures, and enforcement actions logged under the Safe Drinking Water Act.
Water Quality by ZIP Code in San Simon
Water quality varies across San Simon's 1 ZIP codes. Check your specific ZIP for detailed contaminant data.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 85632 | C | 58 | 39 | 20 | View report → |
Violation Trend
EPA violations recorded for water systems serving San Simon.
Water Quality Overview
San Simon, Arizona receives a water quality grade of C with an overall score of 58 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).
The 1 water system serving San Simon have accumulated 39 EPA violations, including 20 health-based violations. These violations are tracked across 1 ZIP codes serving approximately 312 people.
What Grade C Means
A grade of C indicates moderate compliance issues. San Simon'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 San Simon water systems is 0.0010 mg/L — within EPA limits. No ZIP codes exceed the EPA lead action level.
With 51% of homes built before 1986, San Simon has a higher-than-average risk of lead from older plumbing. Lead solder was banned in 1986, and homes built before this date may have lead in pipes, solder joints, or fixtures.
Radon Risk
San Simon is in EPA Radon Zone 2 (Moderate risk). Testing is recommended, especially for homes with basements or ground-level living spaces.
Water Systems Serving San Simon
San Simon is served by 1 community water system regulated under the Safe Drinking Water Act. These systems collectively serve approximately 312 people across 1 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 San Simon. Enforcement actions range from informal compliance assistance to formal orders and penalties.
How to Check Your Water in San Simon
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 San Simon Water Systems
The following contaminants have been detected or caused violations across San Simon's water systems:
| Contaminant | Category | MCL | Violations | ZIPs Affected | Health-Based |
|---|---|---|---|---|---|
| Nickel | Inorganic | 0.1 mg/L | 19 | 1 | Yes |
| Revised Total Coliform Rule | Microbiological | N/A | 7 | 1 | No |
| Lead and Copper Rule | Treatment Technique | N/A | 4 | 1 | No |
| Surface Water Treatment Rule | Treatment Technique | N/A | 3 | 1 | No |
| Stage 2 DBP Rule | Treatment Technique | N/A | 2 | 1 | Yes |
MCL = Maximum Contaminant Level (EPA enforceable standard). Health-based violations indicate levels that may pose direct health risks.
Violation Trend Over Time
Year-by-year EPA violations recorded for water systems serving San Simon:
| Year | Total Violations | Health-Based |
|---|---|---|
| 2022 | 3 | 3 |
| 2023 | 4 | 4 |
| 2024 | 5 | 5 |
| 2025 | 3 | 3 |
Violation counts have remained stable over the observed period.
EPA Enforcement History
The EPA and state regulators have taken 10 enforcement actions against water systems serving San Simon. Recent actions:
| Date | Action Type |
|---|---|
| 2025-08-26 | State Informal Action |
| 2025-08-26 | State Informal Enforcement |
| 2025-08-12 | State Informal Action |
| 2025-08-01 | State Informal Action |
| 2025-08-01 | State Order Extension |
| 2025-07-23 | State Informal Action |
| 2025-07-23 | State Informal Enforcement |
| 2025-07-22 | State Informal Action |
| 2025-07-09 | State Informal Action |
| 2025-07-09 | State Informal Enforcement |
Enforcement actions range from informal compliance assistance to formal orders and penalties. The most recent action was on 2025-08-26.
San Simon vs. Nearby Arizona Cities
How San Simon's water quality compares to similar cities in Arizona:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| San Simon | C | 39 | 1 | 312 |
| Dateland | B | 20 | 1 | 319 |
| Amado | B | 14 | 4 | 298 |
| Mount Lemmon | B | 7 | 1 | 290 |
Common Questions About San Simon Water
These are the most common questions residents search for about water quality in San Simon, Arizona:
Is San Simon water hard or soft? Water hardness varies by source. San Simon's 1 water system uses a single source. Check your ZIP code report for specific hardness data.
Can I drink San Simon tap water? San Simon's water receives a grade of C (58/100). There are 20 health-based violations — consider filtration.
What is the best water filter for San Simon? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.
San Simon vs. Arizona Average
Understanding how San Simon 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 San Simon.
ZIP Codes in San Simon
San Simon spans 1 ZIP code. The ZIP with the lowest water quality score is 85632. 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.