City of Phoenix
EPA ID: AZ0407025 · 1,695,000 people served · 59 ZIP codes
ZipCheckup's reading of EPA SDWIS for City of Phoenix (AZ0407025): 1 past health-based violation, since resolved. Looking at the EPA enforcement file for City of Phoenix, 3 violations appear in the five-year dataset, but none remain open - the utility has addressed each finding and is in current compliance, with no pending enforcement affecting the 1,695,000 people in its service area.
Data: EPA SDWIS
Service Area Map
Coverage area for City of Phoenix Source: EPA SDWIS service area boundaries.
Service area boundary - Grade B
Service Area Demographics
The City of Phoenix serves a community with a median household income of $81,081 and an estimated 1,965,955 residents across its service area. Approximately 47% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
🌊 Where Does Your Water Come From?
City of Phoenix's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.
Infrastructure Risk
Detected Contaminants
How City of Phoenix compares to EPA limits
What This Means For You
Consumer Confidence Report Rule at 1 mg/L exceeds the EPA maximum of mg/L.
Fecal Coliform at 1 presence exceeds the EPA maximum of presence.
E. coli at 1 Zero tolerance (any positive sample triggers immediate action) exceeds the EPA maximum of Zero tolerance (any positive sample triggers immediate action). Severe GI illness; potentially fatal kidney failure in children. Consider UV disinfection (99.99%) filtration.
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 125 detections recorded. 5 exceed federal EPA limits (4 ppt for PFOA/PFOS). 4 exceed state limits.
E. coli was detected in this water system. UV disinfection (99.99%) filtration can reduce exposure.
Find a certified water filter →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
City of Phoenix (EPA ID: AZ0407025) is a community water system in Arizona that serves approximately 1,695,000 people from surface water sources.
This system provides water to 59 ZIP codes across 8 communities.
ZIP-Area Home Safety Context: B (73/100)
This is the average Home Safety Score for 47 of 59 service-area ZIP codes with all required score domains observed. It is not a grade for the water utility.
Model 4.0.0 uses SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the UCMR 5 PFAS MCL screen, EPA radon zone, and annual EPA AirData AQI across three equally weighted domains. Missing required evidence suppresses the score.
Violation History
Status breakdown for accepted records with record years 2021-2026: 2 resolved, 1 archived, 0 addressed, and 0 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| May 1, 2025 | Consumer Confidence Report Rule | Non-health-based | Resolved |
| May 1, 2025 | E. coli | Non-health-based | Archived |
| January 1, 2021 | Fecal Coliform | Health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Consumer Confidence Report Rule | Reporting Failure | 1 | No |
| Fecal Coliform | Microbiological | 1 | Yes |
| E. coli | Microbiological | 1 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.00274 mg/L | No | N/A |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
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
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by AZ or modeled from parcel and building-footprint data.
This system serves 59 ZIP codes:
85003 · 85004 · 85006 · 85007 · 85008 85009 · 85012 · 85013 · 85014 · 85015 85016 · 85017 · 85018 · 85019 · 85020 85021 · 85022 · 85023 · 85024 · 85026 85027 · 85028 · 85029 · 85031 · 85032 85033 · 85034 · 85035 · 85037 · 85040 85041 · 85042 · 85043 · 85044 · 85045 85048 · 85050 · 85051 · 85053 · 85054 85083 · 85085 · 85086 · 85087 · 85251 85253 · 85254 · 85255 · 85260 · 85266 85304 · 85305 · 85306 · 85307 · 85308 85310 · 85331 · 85339 · 85353
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for City of Phoenix (AZ0407025) on EPA.gov.
Frequently Asked Questions
Is City of Phoenix water safe to drink?
The accepted 2026Q2 ECHO snapshot shows no current noncompliance for City of Phoenix; its 3 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.
How many people does City of Phoenix serve?
City of Phoenix serves approximately 1,695,000 people across 59 ZIP codes in Arizona.
Where does City of Phoenix get its water?
The primary water source is surface water.
Federal UCMR5 PFAS Monitoring: Detected
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). PFAS compounds were detected below the current state-enforceable MCL.
Current MCL reflects the lowest state-enforceable limit (NYS 10 ppt for PFOA/PFOS, effective August 2020). The federal final MCL of 4 ppt for PFOA/PFOS (EPA April 2024 rule) is not enforceable until April 2029. Detections above 4 ppt but below 10 ppt are below current MCL but above the future federal limit.
Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) — per-system federal sampling, 2023–2025. EPA UCMR5 monitoring program →
How Water Systems Appear in Rankings
Water systems are evaluated by violation history, contaminant detections, and service population. Larger systems with more service connections appear in more rankings.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). City of Phoenix (AZ): 1 Health Violation. https://zipcheckup.com/water-system/az0407025/
@misc{zipcheckup-water-system-az0407025,
author = {{ZipCheckup}},
title = {{City of Phoenix (AZ): 1 Health Violation}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/az0407025/}
}
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
City of Phoenix (EPA ID: AZ0407025) - request the latest Consumer Confidence Report or ask about specific contaminants.