CITY REPORT CA

Brentwood, CA Home Safety: Home Safety Score unavailable

1 ZIP code · 5 water systems · Updated

Data: EPA SDWIS

1
ZIP Codes
5
Water Systems
0
ZIPs Linked to Systems with Violations
Zone 2
County Radon Potential (Moderate)
$794K
Median Home Value

Brentwood Water: The Quick Version

  • Average of reported 90th-percentile lead results: 0.0031 mg/L.
  • Homes built before 1986: 17% - older plumbing may contain lead solder.
  • Health risk index (ZipCheckup composite of CDC data): 10.72.

Water Systems Serving Brentwood

Among 5 systems linked to Brentwood, CA, the 3 biggest by population served appear below.

Overview

We track home safety data for 1 ZIP code in Brentwood, California (population ~68,160), covering 5 community water systems serving approximately 437,734 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

Brentwood water systems draw from: Groundwater, Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0031 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

1 of 1 ZIP records with known zones is in EPA Radon Zone 2.

The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.

Areas with No Violations

ZIP Code Safety Score System Population
94513 — Brentwood 64,513

All ZIP Codes in Brentwood

Data Sources

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

CDC Health Data for Brentwood

9.4%
Asthma (US: 9.8%)
11.3%
Diabetes (US: 10.4%)
15.3%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.

Compared to National Average

Asthma 9.4% ↓
Diabetes 11.3% ↑
Mental Health 15.3% ↑

Vertical line = national average. ■ Above national · ■ Below national

How Old Is Brentwood's Housing Stock?

2007
Median Build Year
17%
Built Before 1986
9%
Built Before 1970
PEX or Copper
Likely Pipe Material

Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

Construction dates in Brentwood center on a median of 2007, and the Census figures behind it describe when homes were built, not what materials they contain.

2007
Median Year Built
17%
Pre-1986 (lead solder era; lead paint banned 1978)
9%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (9%) 1970–1986 (8%) Post-1986 (83%)

Most homes in Brentwood were built after 1986; lead exposure at a tap still depends on its service line and plumbing. Older homes should still be tested.

Source: U.S. Census Bureau ACS B25034.

Protecting Children from Lead in Brentwood

17%
Homes Built Before 1986
0.0031
mg/L average of reported water-system 90th-percentile lead results (the 0.015 action level applies to each system's result, not to this average)

Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

Homes built before 1986 are more likely to have lead pipes, fixtures or solder, and census figures put that share of Brentwood housing at about 17%. The lead figure used here, an average of ZIP-level 90th-percentile results, sits under 0.010 mg/L. Neither number shows what flows from a particular family's faucet; a test of that faucet is the only direct measure.

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

Historical Flood-Claim Evidence for Brentwood

11
Total FEMA Flood Claims
$5,030
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Brentwood contains 11 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $5,030. 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.

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 Brentwood water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Brentwood is 0.0031 mg/L. The EPA action level of 0.015 mg/L applies to each water system's own 90th percentile, not to this average. EPA's health goal for lead is zero. Lead levels can vary by home - testing is recommended especially in older properties.
How many water systems serve Brentwood?
Our records map 5 water systems to 1 ZIP code in Brentwood. The related population figure in our data is approximately 68,160 people; it is not a count of people served citywide.
Home → Cities → California → Brentwood, CA

How to cite this page

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

Page version: October 2026.

Get safety alerts for Brentwood, California

Free updates when EPA data changes for this area. No spam.

Unsubscribe anytime. Privacy Policy.

Share This Page

X Facebook
Check your water filter options Free tool - no phone call required.