CITY REPORT TN

Hornsby, TN: 3 Violations - Home Safety Score unavailable

1 ZIP code · 2 water systems · Updated

Data: EPA SDWIS

1
ZIP Codes
2
Water Systems
1
ZIPs with Violations
Zone 3
Radon Risk (Low)
$225K
Median Home Value

Hornsby Water: The Quick Version

  • Your city's water systems recorded 3 violations in the past 5 years.
  • Average lead level: 0.0014 mg/L.
  • Homes built before 1986: 52% - older plumbing may contain lead solder.
  • CDC health risk index: 16.7 - above typical levels.

Water Systems Serving Hornsby

Federal records list 2 water systems tied to Hornsby, TN. Of those, 2 are the primary providers, meaning service conditions, rate structures, and compliance histories can differ depending on where a property sits.

Overview

We track home safety data for 1 ZIP code in Hornsby, Tennessee (population ~657), covering 2 community water systems serving approximately 21,540 people region-wide. 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. The available record reports no health-based violations for this measured scope.

Water Sources

Hornsby water systems draw from: Groundwater.

Lead & Copper

  • Average lead level (90th percentile): 0.0014 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
Surface Water Treatment Rule Treatment Technique 6 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
38044 3 0 Selmer Water System

All ZIP Codes in Hornsby

Data Sources

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

CDC Health Data for Hornsby

11.4%
Asthma (US: 9.8%)
17.2%
Diabetes (US: 10.4%)
20.7%
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 11.4% ↑
Diabetes 17.2% ↑
Mental Health 20.7% ↑

Vertical line = national average. Above national · Below national

Key Contaminants Detected in Hornsby

Surface Water Treatment Rule 6 violations
Treatment Technique
Pathogens may not be adequately removed

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

How Old Is Hornsby's Housing Stock?

1986
Median Build Year
52%
Built Before 1986
21%
Built Before 1970
Copper
Likely Pipe Material

With 52% 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

Housing age is one of the most reliable proxies for plumbing-era lead risk, because two federal milestones - the widespread use of lead pipes before 1970 and the continued use of lead solder until 1986 - define the highest-risk tiers of the residential housing stock. With a median build year of 1986, Hornsby falls squarely within the older range - meaning a large fraction of the housing was built under the plumbing standards of those earlier eras. The distribution above captures where that risk concentrates, and why older neighborhoods warrant particular attention from residents concerned about tap water quality.

1986
Median Year Built
52%
Pre-1986 (Lead Paint Risk)
21%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (21%) 1970–1986 (31%) Post-1986 (48%)

Over half of homes in Hornsby 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.

Protecting Children from Lead in Hornsby

52%
Homes Built Before 1986
0.0014
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.

52% - that captures the slice of Hornsby housing dating from before the federal ban on solder containing lead. It pairs with aggregate utility readings that either approach or cross 0.015 mg/L, the benchmark set under the EPA Lead and Copper Rule. Together, the two figures shift one-home reads into a standard household-level confirmation, particularly for families with kids. A certified lead-removal filter is available through retailer-verified channels if a kit returns results that warrant additional measures.

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 Hornsby have?
Hornsby water systems have a total of 3 EPA violations. Violations are tracked across 1 ZIP code.
Does Hornsby water have lead?
The average 90th-percentile lead level in Hornsby is 0.0014 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 Hornsby?
Hornsby is served by 2 public water systems across 1 ZIP code, serving approximately 657 people.
HomeCitiesTennessee → Hornsby, TN

How to cite this page

APA ZipCheckup. (2026). Hornsby, TN: 3 Violations - Home Safety Score unavailable. https://zipcheckup.com/cities/tn/hornsby/
BibTeX
@misc{zipcheckup-cities-tn-hornsby,
  author = {{ZipCheckup}},
  title  = {{Hornsby, TN: 3 Violations - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/tn/hornsby/}
}

Page version: August 2026.

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