Phoenix, AZ: 1482 Health Violations — 53/100 (2026)
78 ZIP codes · 9 water systems · Updated 2026-06-03
Water compliance in Phoenix, AZ ranks below average — documented gaps in multiple service areas.
How Phoenix Compares
Data: EPA SDWIS Last verified: 2026-06-03
Water Quality Map: Phoenix, AZ
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Score Distribution
Safety grade breakdown for Phoenix's 78 ZIP codes.
Key Facts for Phoenix Residents
- Your city's water systems recorded 9828 violations in the past 5 years.
- Average lead level: 0.0027 mg/L.
- Estimated remediation: $2,096 per household.
- CDC health risk index: 11.3.
Phoenix's Water Providers
Water supply in Phoenix, AZ follows a divided structure: 3 utilities account for the largest share of residential service out of 9 total systems, each managing its own distribution network and EPA reporting. Because these systems operate independently, rate decisions and compliance outcomes are determined separately.
Overview
We track water quality and home safety data for 78 ZIP codes in Phoenix, Arizona (population ~1,454,993), covering 9 community water systems serving approximately 2,562,729 people region-wide.
78 of 78 ZIP codes (100%) have recorded EPA violations. 1482 health-based violations documented.
Home Safety Score
Average Home Safety Score for Phoenix: D (53/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Phoenix water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0027 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 78 ZIP codes
- Zone 3 (Low): 0 ZIP codes
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Consumer Confidence Report Rule | Reporting | 2844 | 78 |
| Stage 2 DBP Rule | Treatment Technique | 1343 | 78 |
| Revised Total Coliform Rule | Microbiological | 869 | 78 |
| Lead and Copper Rule | Treatment Technique | 711 | 78 |
| Fecal Coliform | Microbiological | 632 | 78 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 85001 | C | 126 | 19 | City of Phoenix |
| 85002 | D | 126 | 19 | City of Phoenix |
| 85003 | C | 126 | 19 | City of Phoenix |
| 85004 | C | 126 | 19 | City of Phoenix |
| 85005 | C | 126 | 19 | City of Phoenix |
| 85006 | C | 126 | 19 | City of Phoenix |
| 85007 | D | 126 | 19 | City of Phoenix |
| 85008 | D | 126 | 19 | City of Phoenix |
| 85009 | D | 126 | 19 | City of Phoenix |
| 85010 | D | 126 | 19 | City of Phoenix |
All ZIP Codes in Phoenix
- 85001 [C] — 126 violations ⚠
- 85002 [D] — 126 violations ⚠
- 85003 [C] — 126 violations ⚠
- 85004 [C] — 126 violations ⚠
- 85005 [C] — 126 violations ⚠
- 85006 [C] — 126 violations ⚠
- 85007 [D] — 126 violations ⚠
- 85008 [D] — 126 violations ⚠
- 85009 [D] — 126 violations ⚠
- 85010 [D] — 126 violations ⚠
- 85011 [D] — 126 violations ⚠
- 85012 [D] — 126 violations ⚠
- 85013 [D] — 126 violations ⚠
- 85014 [D] — 126 violations ⚠
- 85015 [D] — 126 violations ⚠
- 85016 [D] — 126 violations ⚠
- 85017 [D] — 126 violations ⚠
- 85018 [D] — 126 violations ⚠
- 85019 [D] — 126 violations ⚠
- 85020 [D] — 126 violations ⚠
- 85021 [D] — 126 violations ⚠
- 85022 [D] — 126 violations ⚠
- 85023 [D] — 126 violations ⚠
- 85024 [D] — 126 violations ⚠
- 85025 [D] — 126 violations ⚠
- 85026 [D] — 126 violations ⚠
- 85027 [C] — 126 violations ⚠
- 85028 [C] — 126 violations ⚠
- 85029 [D] — 126 violations ⚠
- 85030 [C] — 126 violations ⚠
- 85031 [D] — 126 violations ⚠
- 85032 [D] — 126 violations ⚠
- 85033 [D] — 126 violations ⚠
- 85034 [D] — 126 violations ⚠
- 85035 [C] — 126 violations ⚠
- 85036 [C] — 126 violations ⚠
- 85037 [C] — 126 violations ⚠
- 85038 [D] — 126 violations ⚠
- 85039 [D] — 126 violations ⚠
- 85040 [C] — 126 violations ⚠
- 85041 [D] — 126 violations ⚠
- 85042 [C] — 126 violations ⚠
- 85043 [C] — 126 violations ⚠
- 85044 [C] — 126 violations ⚠
- 85045 [D] — 126 violations ⚠
- 85046 [D] — 126 violations ⚠
- 85048 [C] — 126 violations ⚠
- 85050 [C] — 126 violations ⚠
- 85051 [D] — 126 violations ⚠
- 85053 [D] — 126 violations ⚠
- 85054 [C] — 126 violations ⚠
- 85055 [D] — 126 violations ⚠
- 85060 [C] — 126 violations ⚠
- 85061 [C] — 126 violations ⚠
- 85062 [D] — 126 violations ⚠
- 85063 [D] — 126 violations ⚠
- 85064 [C] — 126 violations ⚠
- 85065 [D] — 126 violations ⚠
- 85066 [D] — 126 violations ⚠
- 85067 [C] — 126 violations ⚠
- 85068 [D] — 126 violations ⚠
- 85069 [D] — 126 violations ⚠
- 85070 [D] — 126 violations ⚠
- 85071 [D] — 126 violations ⚠
- 85072 [D] — 126 violations ⚠
- 85073 [D] — 126 violations ⚠
- 85074 [D] — 126 violations ⚠
- 85075 [D] — 126 violations ⚠
- 85076 [D] — 126 violations ⚠
- 85078 [D] — 126 violations ⚠
- 85079 [D] — 126 violations ⚠
- 85080 [D] — 126 violations ⚠
- 85082 [D] — 126 violations ⚠
- 85083 [C] — 126 violations ⚠
- 85085 [C] — 126 violations ⚠
- 85086 [D] — 126 violations ⚠
- 85097 [D] — 126 violations ⚠
- 85098 [D] — 126 violations ⚠
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
Updated daily.
Phoenix Community Health Snapshot
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
What's in Phoenix's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Remediation Costs Compare in Phoenix
Low proportionality — that's the Phoenix picture when remediation costs are placed against typical home equity.
Remediation costs in Phoenix are relatively low compared to home values. The $1,013–$3,956 estimated range is a small fraction of median property value. Home values are 27% above the Arizona average.
Phoenix: Lead Risk & Vulnerable Populations
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Lead risk in Phoenix appears low overall, but individual homes may differ. Testing is the only way to confirm your water's lead content.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Phoenix: Flood History & Water Damage Risk
Across the years captured by NFIP data, Phoenix has logged 1279 flood insurance claims and carries 55% of its ZIP codes within FEMA-designated flood zones — a sustained record consistent with high flood exposure. The water quality implications run through several pathways: treatment systems repeatedly stressed by high-volume intake, private wells in FEMA zones facing recurring infiltration risk, and distribution infrastructure that has likely experienced multiple backflow episodes during large events.
Phoenix has a significant flood history with 1,279 FEMA flood insurance claims on record, averaging $10,222 per claim. With 55% of ZIP codes in FEMA-designated flood zones, flood risk is a major concern for homeowners and water quality.
How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. Flood damage can add significantly to the estimated <strong>$2,096</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
What You Can Do in Phoenix
- Test your water at home. City-level data shows averages — your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
- Install a certified water filter. Filters rated for Consumer Confidence Report Rule can reduce the most common contaminant found in Phoenix's water.
- Check your home's plumbing. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.
- Review your water system's CCR. Your utility publishes an annual Consumer Confidence Report with detailed test results. Request it or find it online.
Deep Dive Reports
Detailed analysis for Phoenix, AZ