Paso Robles, CA: 16 Health Violations — 50/100 (2026)
2 ZIP codes · 8 water systems · Updated 2026-06-03
Compared to CA averages, Paso Robles scores below the baseline — health violations appear more frequently than the norm and the city's grade reflects that ongoing shortfall.
How Paso Robles Compares
Data: EPA SDWIS Last verified: 2026-06-03
Paso Robles Water: The Quick Version
- Your city's water systems recorded 16 violations in the past 5 years.
- Average lead level: 0.0058 mg/L.
- Estimated remediation: $2,200 per household.
- CDC health risk index: 11.26.
Water Systems Serving Paso Robles
Residential water in Paso Robles, CA is supplied by 3 separate utilities — not one centralized authority. Each of those providers operates under its own service territory boundary, maintains its own distribution infrastructure, and files compliance documentation with the EPA on its own timeline. Federal data counts 8 water systems in the area, with these providers collectively accounting for the dominant share of household connections.
Overview
We track water quality and home safety data for 2 ZIP codes in Paso Robles, California, covering 8 community water systems serving approximately 45,859 people.
2 of 2 ZIP codes (100%) have recorded EPA violations. 16 health-based violations documented.
Home Safety Score
Average Home Safety Score for Paso Robles: D (50/100)
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
Paso Robles water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0058 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): 2 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 |
|---|---|---|---|
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 21 | 2 |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 3 | 2 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 93446 | D | 8 | 8 | City of Paso Robles Water Division |
| 93447 | D | 8 | 8 | City of Paso Robles Water Division |
All ZIP Codes in Paso Robles
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.
CDC Health Data for Paso Robles
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
Key Contaminants Detected in Paso Robles
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Paso Robles: Remediation Cost in Perspective
Setting Paso Robles remediation figures against its property market, the resulting ratio sits comfortably in the low tier — a classification that reflects the kind of household financial position where most homeowners can identify documented issues, schedule the work, and absorb the cost without it registering as a significant budget disruption.
Remediation costs in Paso Robles are relatively low compared to home values. The $1,100–$3,950 estimated range is a small fraction of median property value. Home values are 10% below the California average.
Protecting Children from Lead in Paso Robles
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 Paso Robles 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.
Climate-Related Water Risk for Paso Robles
Although Paso Robles's flood history doesn't reach high-severity thresholds, NFIP data documents 30 claims and FEMA maps place 50% of ZIP codes in designated flood zones — a combined profile that makes flood-related water quality considerations a reasonable planning baseline.
Paso Robles has a moderate flood history with 30 FEMA claims averaging $23,767 per payout. 50% 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>$2,200</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 Paso Robles
- 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 Total Trihalomethanes (TTHM) can reduce the most common contaminant found in Paso Robles'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 Paso Robles, CA