CITY REPORT CA

Belmont, CA Home Safety: Home Safety Score unavailable

1 ZIP code · 3 water systems · Updated

Data: EPA SDWIS

1
ZIP Codes
3
Water Systems
0
ZIPs with Violations
Zone 2
Radon Risk (Moderate)
$2.0M
Median Home Value
$1,600
Est. Remediation (0.1% of home value)

What You Should Know About Belmont Water

  • Average lead level: 0.0058 mg/L.
  • Homes built before 1986: 85% - older plumbing may contain lead solder.
  • Estimated remediation: $1,600 per household.
  • CDC health risk index: 9.58.

Who Supplies Your Water in Belmont

Water delivery in Belmont, CA is handled by 3 utilities rather than a single system - drawn from 3 providers in federal records, each filing its own compliance reports and setting its own rates.

Overview

We track home safety data for 1 ZIP code in Belmont, California (population ~27,730), covering 3 community water systems serving approximately 158,772 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

Belmont water systems draw from: Surface water.

Lead & Copper

  • Average lead level (90th percentile): 0.0058 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
94002 Mid-peninsula Water District 30,609

All ZIP Codes in Belmont

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Health Outcomes in Belmont

8.5%
Asthma (US: 9.8%)
10.6%
Diabetes (US: 10.4%)
13.1%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.

Compared to National Average

Asthma 8.5% ↓
Diabetes 10.6% ↑
Mental Health 13.1% ↓

Vertical line = national average. Above national · Below national

Housing & Infrastructure in Belmont

1963
Median Build Year
85%
Built Before 1986
31%
Built Before 1970
Galvanized Steel or Copper
Likely Pipe Material

With 85% 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, Belmont's housing stock carries a median build year of 1963. That profile puts a majority of homes in the era when lead-soldered copper plumbing was standard practice.

1963
Median Year Built
85%
Pre-1986 (Lead Paint Risk)
31%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (31%) 1970–1986 (54%) Post-1986 (15%)

Over half of homes in Belmont 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 Belmont Homeowners

While no remediation project is entirely without cost, the relationship between estimated remediation and property values in Belmont is notably favorable - the equity share is small enough that the household financial perspective is one of proportionality rather than pressure, and most homeowners can treat it as routine planning rather than a significant financial event.

Median Home Value
$2.0M
Est. Remediation
$1,600
Remediation as % of home value 0.1%

Remediation costs in Belmont are relatively low compared to home values. The $800–$2,600 estimated range is a small fraction of median property value. Home values are 171% above the California average.

Lead Exposure Risk for Children in Belmont

85%
Homes Built Before 1986
0.0058
mg/L Avg Lead (Limit: 0.015)

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.

Routinely in Belmont, where 85% of housing predates the solder ban and aggregate utility readings hover near the federal threshold, a faucet-level draw functions as a standard household step for families with small kids.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Historical NFIP Claim Context in Belmont

29
Total FEMA Flood Claims
$11,622
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Belmont contains 29 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $11,622. 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>$1,600</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.

Frequently Asked Questions

Does Belmont water have lead?
The average 90th-percentile lead level in Belmont is 0.0058 mg/L. This is below the EPA action level of 0.015 mg/L. Lead levels can vary by home - testing is recommended especially in older properties.
How many water systems serve Belmont?
Belmont is served by 3 public water systems across 1 ZIP code, serving approximately 27,730 people.
How much does it cost to fix water issues in Belmont?
Estimated remediation costs in Belmont average $1,600 per household, ranging from $800 to $2,600. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesCalifornia → Belmont, CA

How to cite this page

APA ZipCheckup. (2026). Belmont, CA Home Safety: Home Safety Score unavailable. https://zipcheckup.com/cities/ca/belmont/
BibTeX
@misc{zipcheckup-cities-ca-belmont,
  author = {{ZipCheckup}},
  title  = {{Belmont, CA Home Safety: Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/ca/belmont/}
}

Page version: August 2026.

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