Belvedere Tiburon, CA Home Safety: Home Safety 100/100
1 ZIP code · 1 water system · Updated
ZipCheckup grade for Belvedere Tiburon: A.
No federal data flags a major home-safety concern for this ZIP.
Public water monitoring in Belvedere Tiburon 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 Belvedere Tiburon Compares
Data: EPA SDWIS
What You Should Know About Belvedere Tiburon Water
- Homes built before 1986: 84% - older plumbing may contain lead solder.
- Estimated remediation: $1,200 per household.
- CDC health risk index: 10.78.
Who Supplies Your Water in Belvedere Tiburon
The structure of water supply in Belvedere Tiburon, CA is straightforward: one utility provides the bulk of residential service among 1 tracked system, concentrating rate-setting and infrastructure decisions under a single organization.
- A
Overview
We track home safety data for 1 ZIP code in Belvedere Tiburon, California (population ~12,682), covering 1 community water system serving approximately 186,895 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.
The available EPA record reports 0 violations for 1 ZIP code with a reported violation count.
Home Safety Score
Average Home Safety Score for Belvedere Tiburon: A (100/100)
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
Belvedere Tiburon water systems draw from: Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0000 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)
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 94920 | A | Marin Municipal Water District | 186,895 |
All ZIP Codes in Belvedere Tiburon
- 94920 [A]
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 Belvedere Tiburon
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
Housing & Infrastructure in Belvedere Tiburon
With 84% 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. Belvedere Tiburon's median build year of 1962 places it squarely in that category.
Over half of homes in Belvedere Tiburon 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.
Cost Context: What Remediation Means for Belvedere Tiburon Homeowners
In Belvedere Tiburon, the equity impact of remediation is proportionally small - not the kind of financial commitment that rises to the level of a genuine planning constraint, but a minor share of what most properties here are worth.
Remediation costs in Belvedere Tiburon are relatively low compared to home values. The $800–$1,800 estimated range is a small fraction of median property value. Home values are 171% above the California average.
Lead Exposure Risk for Children in Belvedere Tiburon
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 84% pre-rule share in Belvedere Tiburon 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 NFIP Claim Context in Belvedere Tiburon
Historical NFIP data for Belvedere Tiburon contains 119 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $16,364. 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>$1,200</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 Belvedere Tiburon, CA