CITY REPORT CA HEALTH VIOLATIONS: 12

Paso Robles, CA: 12 Health Violations - Home Safety 59/100

2 ZIP codes · 5 water systems · Updated

ZipCheckup grade for Paso Robles: C.

A mixed picture - some signals here are worth your attention.

Your top priority: match a filter's certification to the violations (12 health-based violations). NSF certified filters →

Neither high nor low, the composite grade for Paso Robles, CA is a C, built from ZIP-level scores.

How Paso Robles Compares

Paso Robles59/100
California avg76/100
National avg73/100

Data: EPA SDWIS

2
ZIP Codes
5
Water Systems
1
ZIPs Linked to Systems with Violations
C · 59
Avg Safety Score
Zone 2
County Radon Potential (Moderate)
$661K
Median Home Value
$1,100
Est. Remediation (0.2% of home value)

Paso Robles Water: The Quick Version

  • Your city's water systems recorded 12 violations since 2021.
  • Average of reported 90th-percentile lead results: 0.0052 mg/L.
  • Estimated remediation: $1,100 per household.
  • Health risk index (ZipCheckup composite of CDC data): 11.26.

Water Systems Serving Paso Robles

More than one public water system is linked to Paso Robles, CA: federal records tie 5 systems to the area, and the 3 with the largest reported service populations are shown below. Which of them supplies a particular address depends on where the property sits, and a water bill or the utility can confirm it.

Overview

We track home safety data for 2 ZIP codes in Paso Robles, California, covering 5 community water systems serving approximately 45,859 people. The EPA snapshots used for this build directly map water systems to 1 of 2 ZIP codes.

1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. 12 health-based violations appear in the available health breakdown.

Home Safety Score

Average Home Safety Score for Paso Robles: C (59/100)

Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:

Factor What It Measures
Water Quality EPA violations and compliance history
PFAS MCL Screen UCMR 5 testing against the covered federal MCLs
Radon Risk EPA radon zone classification
Annual AQI EPA AirData county-year median with at least 90 observed days

Water Sources

Paso Robles water systems draw from: Groundwater, Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0052 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 1 ZIP code with known status exceed the EPA lead action level

Radon Risk

2 of 2 ZIP records with known zones are in EPA Radon Zone 2.

The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Haloacetic Acids (HAA5) Disinfection Byproducts 16 1
Fluoride Inorganic 4 1
Total Trihalomethanes (TTHM) Disinfection Byproducts 4 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
93446 C 12 12 City of Paso Robles Water Division

All ZIP Codes in Paso Robles

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

CDC Health Data for Paso Robles

9.9%
Asthma (US: 9.8%)
10%
Diabetes (US: 10.4%)
16.7%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.

Compared to National Average

Asthma 9.9% ↑
Diabetes 10% ↓
Mental Health 16.7% ↑

Vertical line = national average. ■ Above national · ■ Below national

Key Contaminants Detected in Paso Robles

Haloacetic Acids (HAA5) 16 violations
Disinfection Byproducts · EPA regulatory level for the contaminant named above: 0.06 mg/L
Increased cancer risk with long-term exposure above the MCL
Fluoride 4 violations
Inorganic · EPA regulatory level for the contaminant named above: 4 mg/L
Long-term fluoride exposure above the MCL: bone disease
Total Trihalomethanes (TTHM) 4 violations
Disinfection Byproducts · EPA regulatory level for the contaminant named above: 0.08 mg/L
Increased cancer risk with long-term exposure above the MCL

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

Paso Robles: Remediation Cost in Perspective

The remediation-to-value ratio for Paso Robles sits at the bottom of the scale.

Median Home Value
$661,400
Est. Remediation
$1,100
Remediation as % of home value 0.2%

Estimated remediation costs in Paso Robles can be compared with local home values. The $600–$2,300 estimated range can be set against the median property value; actual costs vary by home. Home values are 10% below the California average.

Protecting Children from Lead in Paso Robles

0.0052
mg/L average of reported water-system 90th-percentile lead results (the 0.015 action level applies to each system's result, not to this average)

Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

Available area-level lead records for Paso Robles do not determine the lead level at an individual tap. 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.

Historical Flood-Claim Evidence for Paso Robles

30
Total FEMA Flood Claims
$47,534
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Paso Robles contains 30 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $47,534. Among ZIP codes with claim records, 100% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.

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. The $1,100 remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.

Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.

Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.

What You Can Do in Paso Robles

  1. Test your water at home. City-level data shows averages - your tap may differ. Check the certification, price and turnaround time of any water test kit or lab service.
  2. Install a certified water filter. For Haloacetic Acids (HAA5), listed in the water-quality records for Paso Robles: if it is a rule or reporting requirement rather than a contaminant, ask your utility what the record involved; for bacteria, follow any boil-water notice from your utility; for a specific chemical contaminant, check whether a filter is certified to reduce it. Not every contaminant has a consumer filter certification.
  3. Check your home's plumbing. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.

Frequently Asked Questions

What does the Home Safety Score mean for Paso Robles, CA?
Paso Robles has an average Home Safety Score of 59/100 (Grade C) under ZipCheckup model 4.0.0, an area-level model that draws on EPA water compliance records, PFAS screening, EPA radon zones, and annual EPA air quality data; see the methodology page for how inputs and coverage are handled. 12 violations appear in EPA records for water systems mapped to these ZIP codes. Check individual ZIP code reports for component details.
How many violations are on record for water systems serving Paso Robles?
EPA records list 12 EPA violations, including 12 health-based violations for Paso Robles water systems. These water-system violations are shown for 2 mapped ZIP codes.
Does Paso Robles water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Paso Robles is 0.0052 mg/L. The EPA action level of 0.015 mg/L applies to each water system's own 90th percentile, not to this average. EPA's health goal for lead is zero. Lead levels can vary by home - testing is recommended especially in older properties.
How does Paso Robles compare to California average?
Paso Robles has an average Home Safety Score of 59/100, which is below the California state average of 76/100 for the same model series.
How many water systems serve Paso Robles?
Our records map 5 water systems to 2 ZIP codes in Paso Robles. The related population figure in our data is approximately 45,859 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Paso Robles?
Estimated remediation cost per household in Paso Robles: $1,100; modeled range $600 to $2,300. Estimated costs may include filtration, pipe replacement, radon mitigation, or flood protection where applicable.
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How to cite this page

APA ZipCheckup. (2026). Paso Robles, CA: 12 Health Violations - Home Safety 59/100. https://zipcheckup.com/cities/ca/paso-robles/
BibTeX
@misc{zipcheckup-cities-ca-paso-robles,
  author = {{ZipCheckup}},
  title  = {{Paso Robles, CA: 12 Health Violations - Home Safety 59/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/ca/paso-robles/}
}

Page version: October 2026.

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