Sanders School District
EPA ID: AZ0401022 · 350 people served · 18 ZIP codes
Federal data shows 10 unresolved violations at Sanders School District — roughly 350 residents in the service area.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Sanders School District Source: EPA SDWIS service area boundaries.
Service area boundary — Grade C
Service Area Demographics
The Sanders School District serves a community with a median household income of $29,018 and an estimated 49,949 residents across its service area. Approximately 48% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 78% 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?
Sanders School District's water is pumped from underground aquifers. 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.
About 16% of homes in Apache 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
Detected Contaminants
How Sanders School District compares to EPA limits
What This Means For You
Surface Water Treatment Rule at 4 mg/L exceeds the EPA maximum of mg/L.
Combined Radium at 11 pCi/L exceeds the EPA maximum of 5 pCi/L.
Stage 1 DBP Rule at 2 mg/L exceeds the EPA maximum of mg/L.
Stage 2 DBP Rule at 2 mg/L exceeds the EPA maximum of mg/L.
Lead and Copper Rule at 2 mg/L exceeds the EPA maximum of mg/L.
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 4 detections recorded.
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
SANDERS SCHOOL DISTRICT (EPA ID: AZ0401022) is a community water system in Arizona that serves approximately 350 people from groundwater sources.
This system provides water to 18 ZIP codes across 18 communities.
Average Home Safety Score: C (55/100)
Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.
Violation History
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| July 1, 2025 | Surface Water Treatment Rule | Monitoring | Unresolved |
| July 1, 2025 | Combined Radium | Monitoring | Unresolved |
| April 1, 2025 | Combined Radium | Monitoring | Unresolved |
| December 19, 2024 | Lead and Copper Rule | Monitoring | Unresolved |
| October 17, 2024 | Stage 2 DBP Rule | Monitoring | Unresolved |
| October 17, 2024 | Stage 2 DBP Rule | Health-based | Unresolved |
| October 1, 2024 | Combined Radium | Monitoring | Unresolved |
| September 14, 2024 | Contaminant 0700 | Health-based | Resolved |
| February 15, 2024 | Lead and Copper Rule | Monitoring | Unresolved |
| January 1, 2024 | Stage 1 DBP Rule | Monitoring | Resolved |
| January 1, 2024 | Combined Radium | Monitoring | Resolved |
| October 2, 2023 | Surface Water Treatment Rule | Monitoring | Resolved |
| July 1, 2023 | Combined Radium | Monitoring | Resolved |
| January 1, 2023 | Combined Radium | Monitoring | Unresolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Combined Radium | Radionuclides | 11 | No |
| Surface Water Treatment Rule | Treatment Failure | 4 | No |
| Stage 1 DBP Rule | Treatment Failure | 2 | No |
| Stage 2 DBP Rule | Treatment Failure | 2 | Yes |
| Lead and Copper Rule | Treatment Failure | 2 | No |
| Contaminant 0700 | Other Violation | 1 | Yes |
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
| ZIP Code | Lead Level | Exceeds Limit | Sample Date |
|---|---|---|---|
| 86512 | 0.0015 mg/L | No | N/A |
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
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
- 86028 — Petrified Forest Natl Pk
- 86502 — Chambers
- 86503 — Chinle
- 86504 — Fort Defiance
- 86505 — Ganado
- 86506 — Houck
- 86507 — Lukachukai
- 86508 — Lupton
- 86511 — Saint Michaels
- 86512 — Sanders
- 86514 — Teec Nos Pos
- 86515 — Window Rock
- 86520 — Blue Gap
- 86538 — Many Farms
- 86540 — Nazlini
- 86544 — Red Valley
- 86547 — Round Rock
- 86556 — Tsaile
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Sanders School District (AZ0401022) on EPA.gov.
Frequently Asked Questions
Is Sanders School District water safe to drink?
Sanders School District has recorded 2 health-based violations in the past 5 years. While the system is required to treat water to meet federal standards, you may want to consider additional precautions such as a certified water filter.
How many people does Sanders School District serve?
Sanders School District serves approximately 350 people across 18 ZIP codes in Arizona.
Where does Sanders School District get its water?
The primary water source is groundwater.
Frequently Asked Questions
What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Sanders School District (EPA ID: AZ0401022) — request the latest Consumer Confidence Report or ask about specific contaminants.