Peoria, AZ: 84 Violations — 68/100 (2026)
6 ZIP codes · 10 water systems · Updated 2026-06-03
In recent monitoring cycles, Peoria tap water shows a mixed record for AZ — several systems have documented violations alongside areas with clean compliance histories.
How Peoria Compares
Data: EPA SDWIS Last verified: 2026-06-03
Water Quality Map: Peoria, AZ
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Score Distribution
Safety grade breakdown for Peoria's 6 ZIP codes.
Key Facts for Peoria Residents
- Your city's water systems recorded 84 violations in the past 5 years.
- Average lead level: 0.0012 mg/L.
- Homes built before 1986: 23% — older plumbing may contain lead solder.
- Estimated remediation: $1,900 per household.
- CDC health risk index: 11.3.
Peoria's Water Providers
Federal records list 10 water systems tied to Peoria, AZ. Of those, 3 are the primary providers, meaning service conditions, rate structures, and compliance histories can differ depending on where a property sits.
Overview
We track water quality and home safety data for 6 ZIP codes in Peoria, Arizona (population ~203,927), covering 10 community water systems serving approximately 2,214,157 people region-wide.
6 of 6 ZIP codes (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for Peoria: C (68/100)
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
Peoria water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0012 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): 6 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 |
|---|---|---|---|
| Contaminant 0800 | Other | 21 | 6 |
| Revised Total Coliform Rule | Microbiological | 21 | 6 |
| Chlorite | Disinfection Byproducts | 14 | 6 |
| Stage 1 DBP Rule | Treatment Technique | 14 | 6 |
| Contaminant 1011 | Other | 7 | 6 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 85345 | C | 14 | 0 | City of Peoria |
| 85380 | C | 14 | 0 | City of Peoria |
| 85381 | C | 14 | 0 | City of Peoria |
| 85382 | C | 14 | 0 | City of Peoria |
| 85383 | C | 14 | 0 | City of Peoria |
| 85385 | C | 14 | 0 | City of Peoria |
All ZIP Codes in Peoria
- 85345 [C] — 14 violations
- 85380 [C] — 14 violations
- 85381 [C] — 14 violations
- 85382 [C] — 14 violations
- 85383 [C] — 14 violations
- 85385 [C] — 14 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.
Peoria 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 Peoria's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Peoria Infrastructure Age
Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
The median home in Peoria was built in 1994, after the federal ban on lead solder in plumbing. Most of the housing stock postdates that cutoff, placing typical plumbing risk on the lower end — though any home built before 1986 still warrants individual testing.
Most homes in Peoria were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
How Remediation Costs Compare in Peoria
While no remediation project is entirely without cost, the relationship between estimated remediation and property values in Peoria is notably favorable — the equity share is small enough that the household financial perspective is one of proportionality rather than pressure, and most homeowners can treat it as routine planning rather than a significant financial event.
Remediation costs in Peoria are relatively low compared to home values. The $1,000–$2,883 estimated range is a small fraction of median property value. Home values are 33% above the Arizona average.
Peoria: 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.
Since the federal solder ban took effect, new plumbing has been built without that pathway, and Peoria's pre-rule stock at 23% reflects a contained footprint.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Peoria: Flood History & Water Damage Risk
Across the NFIP's long tracking period, Peoria shows 28 claims and 67% of ZIP codes within FEMA-designated flood zones — figures that place it in moderate flood exposure territory. At this level, the water-quality implications of flooding — contaminated wells, stressed treatment intake, distribution backflow — move from theoretical edge cases to genuine periodic risks, particularly during higher-severity events.
Peoria has a moderate flood history with 28 FEMA claims averaging $25,113 per payout. 67% of ZIP codes fall within FEMA flood zones. Flood events can contaminate drinking water and overwhelm treatment systems.
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>$1,900</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 Peoria
- 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 Contaminant 0800 can reduce the most common contaminant found in Peoria's water.
- Check your home's plumbing. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.
Deep Dive Reports
Detailed analysis for Peoria, AZ