Rohnert Park, CA: 4 Violations - Home Safety 81/100
3 ZIP codes · 5 water systems · Updated
ZipCheckup grade for Rohnert Park: B.
This ZIP looks solid, with a few items worth a quick check.
How does Rohnert Park tap water hold up under EPA scrutiny? Above average for CA - documented violations are uncommon and the safety grade reflects a clean overall record.
How Rohnert Park Compares
Data: EPA SDWIS
What You Should Know About Rohnert Park Water
- Your city's water systems recorded 4 violations in the past 5 years.
- Average lead level: 0.0013 mg/L.
- Estimated remediation: $1,800 per household.
- CDC health risk index: 11.32.
Who Supplies Your Water in Rohnert Park
Federal drinking water records identify 5 systems in Rohnert Park, CA. The leading 3 providers serve the largest share of residential connections, each operating as a separate entity with its own rate authority, infrastructure management, and EPA compliance obligations - so service conditions are not uniform city-wide.
- B
- B
- B
Overview
We track home safety data for 3 ZIP codes in Rohnert Park, California, covering 5 community water systems serving approximately 46,463 people. The EPA snapshots used for this build directly map water systems to 1 of 3 ZIP codes.
1 of 1 ZIP code 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 Rohnert Park: B (81/100)
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
Rohnert Park water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0013 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
Dominant radon zone: Zone 3 (Low Risk)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 0 ZIP codes
- Zone 3 (Low): 3 ZIP codes
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Stage 1 DBP Rule | Treatment Technique | 4 | 1 |
| Barium | Inorganic | 2 | 1 |
| Consumer Confidence Report Rule | Reporting | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 94928 | B | 4 | 0 | City of Rohnert Park, |
All ZIP Codes in Rohnert Park
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.
Health Outcomes in Rohnert Park
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 Rohnert Park Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Cost Context: What Remediation Means for Rohnert Park Homeowners
Remediation costs in Rohnert Park are small relative to typical property values - the cost-to-value ratio here is favorable.
Remediation costs in Rohnert Park are relatively low compared to home values. The $1,200–$2,600 estimated range is a small fraction of median property value. Home values are 14% below the California average.
Lead Exposure Risk for Children in Rohnert Park
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 Rohnert Park 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.
Historical NFIP Claim Context in Rohnert Park
Historical NFIP data for Rohnert Park contains 5 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $598. Among ZIP codes with claim records, 0% 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 <strong>$1,800</strong> 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.
Deep Dive Reports
Detailed analysis for Rohnert Park, CA