CITY REPORT CA 1 HEALTH VIOLATIONS

Hornbrook, CA: 2 Violations - Home Safety Score unavailable

1 ZIP code · 1 water system · Updated

Data: EPA SDWIS

1
ZIP Codes
1
Water Systems
1
ZIPs with Violations
Zone 3
Radon Risk (Low)
$211K
Median Home Value
$300
Est. Remediation (0.1% of home value)

Hornbrook Water: The Quick Version

  • Your city's water systems recorded 2 violations in the past 5 years.
  • Average lead level: 0.0016 mg/L.
  • Homes built before 1986: 60% - older plumbing may contain lead solder.
  • Estimated remediation: $300 per household.
  • CDC health risk index: 14.49 - above typical levels.

Water Systems Serving Hornbrook

Most residential addresses in Hornbrook, CA are served by a single water utility - the dominant system among the 1 provider tracked in federal data.

Overview

We track home safety data for 1 ZIP code in Hornbrook, California, covering 1 community water system serving approximately 1,181 people. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. 1 health-based violation appear in the available health breakdown.

Water Sources

Hornbrook water systems draw from: Surface water.

Lead & Copper

  • Average lead level (90th percentile): 0.0016 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)

Top Contaminants

Contaminant Category Violations ZIPs Affected
Stage 2 DBP Rule Treatment Technique 4 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
96044 2 1 City of Montague,

All ZIP Codes in Hornbrook

  • 96044 - 2 violations ⚠

Data Sources

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

CDC Health Data for Hornbrook

11%
Asthma (US: 9.8%)
13.9%
Diabetes (US: 10.4%)
17.6%
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 11% ↑
Diabetes 13.9% ↑
Mental Health 17.6% ↑

Vertical line = national average. Above national · Below national

Key Contaminants Detected in Hornbrook

Stage 2 DBP Rule 4 violations
Treatment Technique
Disinfection byproduct exposure risk

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

How Old Is Hornbrook's Housing Stock?

1970
Median Build Year
60%
Built Before 1986
27%
Built Before 1970
Copper
Likely Pipe Material

With 60% 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

What does a median build year of 1970 mean for water safety in Hornbrook? It means the majority of the city's residential plumbing was installed before 1986, when lead solder was federally banned, and a large share may predate 1970, when lead pipes were commonly used - making plumbing age a central variable in household-level lead risk across much of the city.

1970
Median Year Built
60%
Pre-1986 (Lead Paint Risk)
27%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (27%) 1970–1986 (33%) Post-1986 (40%)

Over half of homes in Hornbrook 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.

Hornbrook: Remediation Cost in Perspective

When remediation costs are measured against Hornbrook home values, the resulting ratio is in the low tier - addressing documented water and safety issues here claims only a minor fraction of typical equity, and most homeowners are in a position where the financial commitment is straightforward rather than a material burden on their household budget.

Median Home Value
$210,700
Est. Remediation
$300
Remediation as % of home value 0.1%

Remediation costs in Hornbrook are relatively low compared to home values. The $150–$600 estimated range is a small fraction of median property value. Home values are 71% below the California average.

Protecting Children from Lead in Hornbrook

60%
Homes Built Before 1986
0.0016
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.

If 60% of the Hornbrook inventory comes from before the federal ban on lead-bearing solder - and if utility samples sit at or near 0.015 mg/L - the gap between citywide averages and one specific faucet becomes a practical concern rather than a theoretical one. That is why one-home reads exist as a separate measurement. A certified filter through retailer networks addresses confirmed exposure where it appears in a household.

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

Frequently Asked Questions

How many water violations does Hornbrook have?
Hornbrook water systems have a total of 2 EPA violations, including 1 health-based violation. Violations are tracked across 1 ZIP code.
Does Hornbrook water have lead?
The average 90th-percentile lead level in Hornbrook is 0.0016 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 Hornbrook?
Hornbrook is served by 1 public water system across 1 ZIP code, serving approximately 1,181 people.
How much does it cost to fix water issues in Hornbrook?
Estimated remediation costs in Hornbrook average $300 per household, ranging from $150 to $600. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesCalifornia → Hornbrook, CA

How to cite this page

APA ZipCheckup. (2026). Hornbrook, CA: 2 Violations - Home Safety Score unavailable. https://zipcheckup.com/cities/ca/hornbrook/
BibTeX
@misc{zipcheckup-cities-ca-hornbrook,
  author = {{ZipCheckup}},
  title  = {{Hornbrook, CA: 2 Violations - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/ca/hornbrook/}
}

Page version: August 2026.

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