Water Quality in 86001 — Flagstaff, AZ
EPA data for FLAGSTAFF CITY OF
Data source: U.S. Environmental Protection Agency (EPA) SDWIS Last verified: March 16, 2026
Your Water System
ZIP code 86001 in Flagstaff, Arizona is served by FLAGSTAFF CITY OF (EPA ID: AZ0403008). This system provides water to approximately 76,960 people from surface water sources.
There are 16 community water systems serving this area.
Lead & Copper in Your Water
No Lead & Copper Rule sampling data available for systems serving this ZIP code.
Violation Summary
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| July 1, 2025 | Consumer Confidence Report Rule | Monitoring | Resolved |
| June 1, 2025 | E. coli | Monitoring | Unresolved |
| June 1, 2025 | E. coli | Monitoring | Resolved |
| March 1, 2025 | Revised Total Coliform Rule | Monitoring | Unresolved |
| June 1, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| June 1, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| January 1, 2024 | Dichloroacetic Acid | Monitoring | Resolved |
| January 1, 2024 | Dichloroacetic Acid | Monitoring | Resolved |
| July 1, 2023 | Contaminant 1009 | Monitoring | Resolved |
| July 1, 2023 | Contaminant 1009 | Monitoring | Resolved |
| July 1, 2023 | Contaminant 1009 | Monitoring | Unresolved |
| April 1, 2023 | Chlorite | Monitoring | Resolved |
| April 1, 2023 | Chlorite | Monitoring | Unresolved |
| April 1, 2023 | Chlorite | Monitoring | Unresolved |
| April 1, 2023 | Chlorite | Monitoring | Unresolved |
| February 1, 2023 | Consumer Confidence Report Rule | Monitoring | Resolved |
| February 1, 2023 | Consumer Confidence Report Rule | Monitoring | Resolved |
| February 1, 2023 | Consumer Confidence Report Rule | Monitoring | Resolved |
| January 1, 2023 | PFOA | Monitoring | Resolved |
| January 1, 2023 | PFOA | Monitoring | Unresolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for water systems serving this ZIP code:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Chlorite | Disinfection Byproducts | 10 | No |
| Dichloroacetic Acid | Disinfection Byproducts | 7 | No |
| Consumer Confidence Report Rule | Reporting | 6 | No |
| E. coli | Microbiological | 5 | No |
| Contaminant 2005 | Other | 5 | No |
| Contaminant 2010 | Other | 5 | No |
| Contaminant 2015 | Other | 5 | No |
| Contaminant 2020 | Other | 5 | No |
| Contaminant 2031 | Other | 5 | No |
| Contaminant 2032 | Other | 5 | No |
| Contaminant 2033 | Other | 5 | No |
| Contaminant 2034 | Other | 5 | No |
| Contaminant 2035 | Other | 5 | No |
| Contaminant 2036 | Other | 5 | No |
| Contaminant 2037 | Other | 5 | No |
Need help with your water quality?
Call to get connected with a local professional in your area.
Call (855) 384-4856This is a free service. You will be connected with an independent service provider.
Water Systems Serving This Area
| System Name | EPA ID | Population | Source |
|---|---|---|---|
| FLAGSTAFF CITY OF | AZ0403008 | 76,960 | Surface water |
| DONEY PARK WATER | AZ0403005 | 8,996 | Groundwater |
| KACHINA VILLAGE DWID | AZ0403013 | 3,500 | Groundwater |
| FOREST HIGHLANDS WATER COMPANY | AZ0403073 | 1,668 | Groundwater |
| PONDEROSA UTILITY CORP | AZ0403018 | 1,585 | Groundwater |
What You Can Do
- Review your annual Consumer Confidence Report (CCR) — Your utility publishes this each July
- Test your home’s water — Especially if you have older plumbing (pre-1986) that may contain lead
- Stay informed — Bookmark this page to check for updates on your water quality
Need help with water testing or filtration?
Call to get connected with a local professional in your area.
Call (855) 384-4856This is a free service. You will be connected with an independent service provider.
Other Water Quality Reports in Arizona
- 85001 (Phoenix) — 248 violations
- 85117 (Apache Junction) — 263 violations
- 85122 (Casa Grande) — 52 violations
- 85123 (Arizona City) — 94 violations
- 85127 (Chandler Heights) — 6 violations
- 85128 (Coolidge) — 101 violations
- 85131 (Eloy) — 139 violations
- 85132 (Florence) — 109 violations
- 85135 (Hayden) — 91 violations
- 85137 (Kearny) — 82 violations
- 85138 (Maricopa) — 428 violations
- 85140 (San Tan Valley) — 90 violations
- 85141 (Picacho) — 88 violations
- 85142 (Queen Creek) — 70 violations
- 85145 (Red Rock) — 43 violations
- 85172 (Stanfield) — 92 violations
- 85173 (Superior) — 11 violations
- 85201 (Mesa) — 38 violations
- 85224 (Chandler) — 259 violations
- 85233 (Gilbert) — 364 violations
Nearby Water Quality Reports
- 86336 (Sedona) — 25 mi — 320 violations
- 86312 (Prescott Valley) — 51 mi — 124 violations
- 86301 (Prescott) — 60 mi — 127 violations
- 85327 (Cave Creek) — 95 mi — 90 violations
- 85358 (Wickenburg) — 104 mi — 26 violations
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for FLAGSTAFF CITY OF (AZ0403008) on EPA.gov.
Frequently Asked Questions
Is the tap water in 86001 safe to drink?
Based on EPA records, the water system serving ZIP code 86001 has only monitoring/reporting violations, which are procedural in nature. However, individual home conditions (old pipes, well water) can affect quality.
Where does 86001’s water come from?
The primary water source for this area is surface water. FLAGSTAFF CITY OF serves approximately 76,960 people.
How can I get my water tested?
Contact your local water utility for a free water quality report, or hire a certified lab for independent home water testing. The EPA recommends testing annually if you use a private well.
Does 86001 have lead in the water?
No Lead and Copper Rule sampling data is currently available in EPA records for water systems serving ZIP code 86001. If you are concerned about lead, contact your water utility or have your tap water independently tested.
What is the radon risk in 86001?
Radon zone data is not available for ZIP code 86001. The EPA recommends testing all homes for radon regardless of location, as radon levels can vary significantly even within the same neighborhood.