Vallejo, CA: 1 Health Violation - Home Safety 99/100
4 ZIP codes · 5 water systems · Updated
ZipCheckup grade for Vallejo: A.
No federal data flags a major home-safety concern for this ZIP.
Public water monitoring in Vallejo shows a safety record well above the CA median - health-based violations are isolated exceptions rather than recurring patterns, the city's systems have stayed compliant across recent reporting cycles, and no cluster of recurring exceedances appears in any single service area.
How Vallejo Compares
Data: EPA SDWIS
Vallejo Water: The Quick Version
- Your city's water systems recorded 2 violations in the past 5 years.
- Average lead level: 0.0006 mg/L.
- Homes built before 1986: 58% - older plumbing may contain lead solder.
- Estimated remediation: $1,200 per household.
- CDC health risk index: 11.66.
Water Systems Serving Vallejo
At present, 3 utilities serve the bulk of Vallejo, CA's residential water connections out of 5 systems active in the area, spread across independent providers with separate infrastructure and compliance obligations.
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Overview
We track home safety data for 4 ZIP codes in Vallejo, California (population ~127,038), covering 5 community water systems serving approximately 293,165 people region-wide. The EPA snapshots used for this build directly map water systems to 4 of 4 ZIP codes.
1 of 4 ZIP codes with a reported violation count in the available EPA record (25%) have recorded EPA violations. 1 health-based violation appear in the available health breakdown.
Home Safety Score
Average Home Safety Score for Vallejo: 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
Vallejo water systems draw from: Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0006 mg/L (EPA action level: 0.015 mg/L)
- 0 of 4 ZIP codes 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): 4 ZIP codes
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Stage 2 DBP Rule | Treatment Technique | 4 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 94591 | A | 2 | 1 | City of Vallejo-lakes System |
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 94589 | A | City of Vallejo | 121,420 |
| 94590 | A | City of Vallejo | 121,420 |
| 94592 | — | City of Vallejo | 121,420 |
All ZIP Codes in Vallejo
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 Vallejo
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 Vallejo
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Old Is Vallejo's Housing Stock?
With 58% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
When more than half a city's housing predates the 1986 federal ban on lead solder, plumbing-era lead risk becomes a citywide concern rather than an exception. Vallejo's median build year of 1980 places it squarely in that category.
Over half of homes in Vallejo were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.
Source: U.S. Census Bureau ACS B25034.
Vallejo: Remediation Cost in Perspective
Given current Vallejo valuations, the remediation-to-property-value ratio is low - most homeowners are looking at a proportionally modest share that fits within routine financial planning.
Remediation costs in Vallejo are relatively low compared to home values. The $800–$1,800 estimated range is a small fraction of median property value. Home values are 18% below the California average.
Protecting Children from Lead in Vallejo
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.
Even where utility-side monitoring meets Lead and Copper Rule requirements, the 58% pre-rule share in Vallejo keeps interior-plumbing variation as a household-level question that aggregate data cannot resolve.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Historical Flood-Claim Evidence for Vallejo
Historical NFIP data for Vallejo contains 151 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $9,250. 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 <strong>$1,200</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 Vallejo, CA