CITY REPORT CA

Westley, CA Home Safety: Home Safety Score unavailable

1 ZIP code · 1 water system · Updated

Data: EPA SDWIS

1
ZIP Codes
1
Water Systems
0
ZIPs with Violations
Zone 3
Radon Risk (Low)
$349K
Median Home Value
$2,500
Est. Remediation (0.7% of home value)

Key Facts for Westley Residents

  • Homes built before 1986: 50% - older plumbing may contain lead solder.
  • Estimated remediation: $2,500 per household.
  • CDC health risk index: 12.27 - above typical levels.

Westley's Water Providers

The structure of water supply in Westley, 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.

Overview

We track home safety data for 1 ZIP code in Westley, California (population ~1,187), covering 1 community water system serving approximately 2,000 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

Westley 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
95387 Western Hills Water District/diablo Gran 2,000

All ZIP Codes in Westley

Data Sources

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

Westley Community Health Snapshot

10%
Asthma (US: 9.8%)
11.9%
Diabetes (US: 10.4%)
18.8%
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 10% ↑
Diabetes 11.9% ↑
Mental Health 18.8% ↑

Vertical line = national average. Above national · Below national

Westley Infrastructure Age

1983
Median Build Year
50%
Built Before 1986
26%
Built Before 1970
Copper
Likely Pipe Material

With 50% 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

Because the majority of Westley's housing predates 1986, when lead solder was banned from new plumbing, the median build year of 1983 reflects a city where lead-era plumbing materials are common rather than exceptional.

1983
Median Year Built
50%
Pre-1986 (Lead Paint Risk)
26%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (26%) 1970–1986 (24%) Post-1986 (50%)

Over half of homes in Westley 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.

How Remediation Costs Compare in Westley

Given current Westley valuations, the remediation-to-property-value ratio is low - most homeowners are looking at a proportionally modest share that fits within routine financial planning.

Median Home Value
$348,900
Est. Remediation
$2,500
Remediation as % of home value 0.7%

Remediation costs in Westley are relatively low compared to home values. The $1,800–$4,000 estimated range is a small fraction of median property value. Home values are 53% below the California average.

Westley: Lead Risk & Vulnerable Populations

50%
Homes Built Before 1986

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.

Older stock in Westley represents 50% of the inventory, and citywide monitoring runs at or above the federal action level - making an in-home read a standard household-level step.

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

Westley: NFIP Claim Records and Water-Quality Context

2
Total FEMA Flood Claims
$81,682
Avg Reported Sum With Payment Data
0%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Westley contains 2 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $81,682. 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>$2,500</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

How many water systems serve Westley?
Westley is served by 1 public water system across 1 ZIP code, serving approximately 1,187 people.
How much does it cost to fix water issues in Westley?
Estimated remediation costs in Westley average $2,500 per household, ranging from $1,800 to $4,000. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesCalifornia → Westley, CA

How to cite this page

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

Page version: August 2026.

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