CITY REPORT MO 1 HEALTH VIOLATIONS

Thornfield, MO: 4 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 2
Radon Risk (Moderate)
$208K
Median Home Value
$400
Est. Remediation (0.2% of home value)

What You Should Know About Thornfield Water

  • Your city's water systems recorded 4 violations in the past 5 years.
  • Homes built before 1986: 73% - older plumbing may contain lead solder.
  • Estimated remediation: $400 per household.
  • CDC health risk index: 18.64 - above typical levels.

Who Supplies Your Water in Thornfield

While 1 water system appear in federal records for Thornfield, MO, one provider supplies the majority of residential connections - making it the central point of infrastructure and compliance accountability for most households.

Overview

We track home safety data for 1 ZIP code in Thornfield, Missouri (population ~469), covering 1 community water system serving approximately 742 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. 1 health-based violation appear in the available health breakdown.

Water Sources

Thornfield water systems draw from: Groundwater.

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 2 (Moderate Risk)

The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Stage 2 DBP Rule Treatment Technique 4 1
Stage 1 DBP Rule Treatment Technique 2 1
Consumer Confidence Report Rule Reporting 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
65762 4 1 Gainesville Public Water System

All ZIP Codes in Thornfield

  • 65762 - 4 violations ⚠

Data Sources

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

Health Outcomes in Thornfield

11.2%
Asthma (US: 9.8%)
18.3%
Diabetes (US: 10.4%)
18.4%
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 11.2% ↑
Diabetes 18.3% ↑
Mental Health 18.4% ↑

Vertical line = national average. Above national · Below national

Top Contaminants in Thornfield Water

Stage 2 DBP Rule 4 violations
Treatment Technique
Disinfection byproduct exposure risk
Stage 1 DBP Rule 2 violations
Treatment Technique
Disinfection byproduct exposure risk
Consumer Confidence Report Rule 2 violations
Reporting

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

Housing & Infrastructure in Thornfield

1973
Median Build Year
73%
Built Before 1986
24%
Built Before 1970
Copper
Likely Pipe Material

With 73% 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

The character of Thornfield's housing stock is one of deep historical layering - a median build year of 1973 signals a city built largely before the plumbing era changes of 1986 and 1970. Lead-soldered copper joints and, in the oldest properties, lead service lines are commonly present in this inventory. That context shapes what individual water testing may reveal, particularly in neighborhoods where the oldest housing is concentrated.

1973
Median Year Built
73%
Pre-1986 (Lead Paint Risk)
24%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (24%) 1970–1986 (49%) Post-1986 (27%)

Over half of homes in Thornfield 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 Thornfield Homeowners

In Thornfield, property wealth outpaces what documented remediation typically demands - the equity burden lands well within the low tier.

Median Home Value
$207,900
Est. Remediation
$400
Remediation as % of home value 0.2%

Remediation costs in Thornfield are relatively low compared to home values. The $0–$800 estimated range is a small fraction of median property value. Home values are 18% above the Missouri average.

Lead Exposure Risk for Children in Thornfield

73%
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.

In recent monitoring under the Lead and Copper Rule, citywide samples for Thornfield have approached or crossed the regulatory action level on multiple occasions. Combined with 73% of stock dating from the pre-rule era, the picture supports baseline single-tap reads as a standard household-level step.

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 Thornfield have?
Thornfield water systems have a total of 4 EPA violations, including 1 health-based violation. Violations are tracked across 1 ZIP code.
How many water systems serve Thornfield?
Thornfield is served by 1 public water system across 1 ZIP code, serving approximately 469 people.
How much does it cost to fix water issues in Thornfield?
Estimated remediation costs in Thornfield average $400 per household, ranging from $0 to $800. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesMissouri → Thornfield, MO

How to cite this page

APA ZipCheckup. (2026). Thornfield, MO: 4 Violations - Home Safety Score unavailable. https://zipcheckup.com/cities/mo/thornfield/
BibTeX
@misc{zipcheckup-cities-mo-thornfield,
  author = {{ZipCheckup}},
  title  = {{Thornfield, MO: 4 Violations - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/mo/thornfield/}
}

Page version: August 2026.

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