Yuma, AZ: 95 Health Violations — 60/100 (2026)
5 ZIP codes · 6 water systems · Updated 2026-06-03
Unlike higher-rated cities in AZ, Yuma carries a fair number of documented violations — the pattern of compliance gaps keeps the city in the middle tier of EPA safety rankings.
How Yuma Compares
Data: EPA SDWIS Last verified: 2026-06-03
Water Quality Map: Yuma, AZ
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Score Distribution
How ZIP codes in Yuma score across all safety grades.
What You Should Know About Yuma Water
- Your city's water systems recorded 360 violations in the past 5 years.
- Average lead level: 0.0011 mg/L.
- Homes built before 1986: 35% — older plumbing may contain lead solder.
- Estimated remediation: $1,940 per household.
- CDC health risk index: 13.4 — above typical levels.
Who Supplies Your Water in Yuma
Federal records list 6 water systems tied to Yuma, 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 5 ZIP codes in Yuma, Arizona, covering 6 community water systems serving approximately 146,630 people.
5 of 5 ZIP codes (100%) have recorded EPA violations. 95 health-based violations documented.
Home Safety Score
Average Home Safety Score for Yuma: C (60/100)
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
Yuma water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0011 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): 5 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 1008 | Other | 102 | 5 |
| Lead and Copper Rule | Treatment Technique | 90 | 5 |
| Contaminant 1009 | Other | 66 | 5 |
| Consumer Confidence Report Rule | Reporting | 60 | 5 |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 24 | 5 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 85364 | D | 72 | 19 | City of Yuma |
| 85365 | C | 72 | 19 | City of Yuma |
| 85366 | C | 72 | 19 | City of Yuma |
| 85367 | C | 72 | 19 | Foothills Water and Sewer Llc |
| 85369 | C | 72 | 19 | City of Yuma |
All ZIP Codes in Yuma
- 85364 [D] — 72 violations ⚠
- 85365 [C] — 72 violations ⚠
- 85366 [C] — 72 violations ⚠
- 85367 [C] — 72 violations ⚠
- 85369 [C] — 72 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.
Health Outcomes in Yuma
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
Top Contaminants in Yuma Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Housing & Infrastructure in Yuma
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
Because Yuma's housing stock spans a wide range of construction eras, the median build year of 1991 lands in a zone where two distinct risk populations share the same residential market. Homes built before 1986 may have lead-soldered copper plumbing joints — that practice was federally prohibited in 1986 but remained standard until then. The fraction built before 1970 face an additional risk: lead pipes used for service line connections were common before that decade, meaning both the pipe and the solder may be lead-containing in the oldest structures. Residents in mid-century or earlier homes face a different risk environment than neighbors in houses built after 1986, even if they drink from the same utility's supply — and that property-level divergence is what makes the age distribution above more diagnostic than the city-wide median alone.
Most homes in Yuma 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.
Cost Context: What Remediation Means for Yuma Homeowners
Property equity in Yuma sits at a moderate ratio to estimated remediation costs — a classification that reframes the household financial perspective from routine maintenance to deliberate budgeting, where most homeowners have a realistic path to addressing documented water and safety issues if they map the financial commitment against available resources before committing to scope.
Remediation costs are moderate relative to home values in Yuma. The estimated $920–$3,680 range is manageable for most homeowners but still worth budgeting for. Home values are 38% below the Arizona average.
Lead Exposure Risk for Children in Yuma
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.
Despite citywide averages serving as the standard public reference point, those aggregates cannot resolve what is happening at one specific faucet — and where 35% of Yuma homes come from before the solder rule or where utility samples sit at or above the action mark, the gap between system data and faucet reality matters more than it does in lower-exposure communities. An in-home draw closes that gap, with certified filtration through retailer networks available where confirmed faucet results warrant additional measures.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Flood & Climate Risk in Yuma
How does Yuma's flood record connect to local water quality? The NFIP documents 69 claims — enough to signal recurring events — and 60% of ZIP codes carry FEMA flood zone status. That combination places flooding in the category of factors that can periodically affect water infrastructure, even if the area isn't among the highest-exposure communities in the NFIP dataset.
Yuma has a moderate flood history with 69 FEMA claims averaging $8,582 per payout. 60% 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>$1,940</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 Yuma
- 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 1008 can reduce the most common contaminant found in Yuma's water.
- Check your home's plumbing. With 35% of homes built before 1986, lead solder is a real possibility.
Deep Dive Reports
Detailed analysis for Yuma, AZ