Sunol, CA Home Safety: Home Safety Score unavailable
1 ZIP code · 5 water systems · Updated
Data: EPA SDWIS
What You Should Know About Sunol Water
- Average lead level: 0.0067 mg/L.
- Homes built before 1986: 74% - older plumbing may contain lead solder.
- Estimated remediation: $1,600 per household.
- CDC health risk index: 9.67.
Who Supplies Your Water in Sunol
Structurally, Sunol, CA's water supply is divided. Federal data identifies 5 water systems in the area, with 3 providers serving the bulk of residential connections. These utilities operate independently, meaning rate-setting authority and EPA compliance accountability are distributed rather than centralized.
Overview
We track home safety data for 1 ZIP code in Sunol, California (population ~1,011), covering 5 community water systems serving approximately 1,682,764 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.
Water Sources
Sunol water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0067 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 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 94586 | — | Zone 7 Water Agency | 40 |
All ZIP Codes in Sunol
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 Sunol
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 Sunol
With 74% 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
Heavily weighted toward older construction, Sunol's housing stock carries a median build year of 1967. That profile puts a majority of homes in the era when lead-soldered copper plumbing was standard practice.
Over half of homes in Sunol 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 Sunol Homeowners
At current valuations, Sunol sits in the low remediation-share tier - the equity impact of fixing documented issues is proportionally minor.
Remediation costs in Sunol are relatively low compared to home values. The $800–$2,600 estimated range is a small fraction of median property value. Home values are 111% above the California average.
Lead Exposure Risk for Children in Sunol
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.
When older housing represents 74% of the local inventory or aggregate readings approach the federal action level, an in-home check becomes the standard way to translate citywide averages into the specific reality of an individual Sunol address.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Historical NFIP Claim Context in Sunol
Historical NFIP data for Sunol contains 9 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $5,593. 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>$1,600</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 Sunol, CA