Petaluma, CA: 2 Violations - Home Safety 99/100
6 ZIP codes · 5 water systems · Updated
ZipCheckup grade for Petaluma: A.
Checked records flag no major concern; missing data is unknown.
Across Petaluma, CA, the overall grade falls in the upper range - a summary score, not a measurement taken at any single tap.
How Petaluma Compares
Data: EPA SDWIS
Petaluma Water: The Quick Version
- Your city's water systems recorded 2 violations since 2021.
- Health risk index (ZipCheckup composite of CDC data): 11.32.
Water Systems Serving Petaluma
The 3 largest of 5 systems connected with Petaluma, CA are listed below.
- A
- A
- A
Overview
We track home safety data for 6 ZIP codes in Petaluma, California (population ~71,339), covering 5 community water systems serving approximately 175,338 people region-wide. The EPA snapshots used for this build directly map water systems to 2 of 6 ZIP codes.
2 of 2 ZIP codes with a reported violation count in the available EPA record (100%) have recorded EPA violations. The available record reports no health-based violations for this measured scope.
Home Safety Score
Average Home Safety Score for Petaluma: A (99/100)
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
Petaluma water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average of reported 90th-percentile lead results: reported as 0 mg/L (a reported 0 is not proof of no lead; check the source record for its reporting limit) (EPA action level: 0.015 mg/L)
- 0 of 2 ZIP codes with known status exceed the EPA lead action level
Radon Risk
6 of 6 ZIP records with known zones are in EPA Radon Zone 3.
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 |
|---|---|---|---|
| Arsenic | Inorganic | 3 | 2 |
| Revised Total Coliform Rule | Microbiological | 3 | 2 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 94952 | A | 2 | 0 | City of Petaluma, |
| 94954 | A | 2 | 0 | City of Petaluma, |
All ZIP Codes in Petaluma
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
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
CDC Health Data for Petaluma
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
Vertical line = national average. ■ Above national · ■ Below national
Key Contaminants Detected in Petaluma
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Historical Flood-Claim Evidence for Petaluma
Historical NFIP data for Petaluma contains 498 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $23,309. 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.
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.
Deep Dive Reports
Detailed analysis for Petaluma, CA