CITY REPORT MO HEALTH VIOLATIONS: 2

Unionville, MO: 4 Violations - Home Safety Score unavailable

1 ZIP code · 2 water systems · Updated

Data: EPA SDWIS

1
ZIP Codes
2
Water Systems
1
ZIPs Linked to Systems with Violations
Zone 2
County Radon Potential (Moderate)
$118K
Median Home Value
$300
Est. Remediation (0.3% of home value)

Key Facts for Unionville Residents

  • Your city's water systems recorded 4 violations since 2021.
  • Average of reported 90th-percentile lead results: 0.0058 mg/L.
  • Homes built before 1986: 64% - older plumbing may contain lead solder.
  • Estimated remediation: $300 per household.
  • Health risk index (ZipCheckup composite of CDC data): 14.94.

Unionville's Water Providers

More than one public water system is linked to Unionville, MO: federal records tie 2 systems to the area, and the 2 with the largest reported service populations are shown below. Which of them supplies a particular address depends on where the property sits, and a water bill or the utility can confirm it.

Overview

We track home safety data for 1 ZIP code in Unionville, Missouri, covering 2 community water systems serving approximately 3,975 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. 2 health-based violations appear in the available health breakdown.

Water Sources

Unionville water systems draw from: Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0058 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.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Interim Enhanced Surface Water Treatment Rule Treatment Technique 4 1
Public Notice Rule Reporting 2 1
Revised Total Coliform Rule Microbiological 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
63565 — 4 2 Unionville Public Water System

All ZIP Codes in Unionville

  • 63565 - 4 violations ⚠

Data Sources

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

Unionville Community Health Snapshot

10.4%
Asthma (US: 9.8%)
13.6%
Diabetes (US: 10.4%)
17.1%
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 10.4% ↑
Diabetes 13.6% ↑
Mental Health 17.1% ↑

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

What's in Unionville's Water?

Interim Enhanced Surface Water Treatment Rule 4 violations
Treatment Technique
Public Notice Rule 2 violations
Reporting
Revised Total Coliform Rule 2 violations
Microbiological
Indicates possible bacterial contamination

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

Unionville Infrastructure Age

1975
Median Build Year
64%
Built Before 1986
41%
Built Before 1970
Copper
Likely Pipe Material

With 64% of homes built before 1986, lead solder in plumbing is a potential concern. Federal law banned lead solder in drinking-water plumbing in 1986, but many older homes retain original plumbing.

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

Housing Age Profile

Lead can reach tap water from service lines, solder and brass fittings inside a building, which is why housing age draws attention in Unionville, where the median build year is 1975.

1975
Median Year Built
64%
Pre-1986 (lead solder era; lead paint banned 1978)
41%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (41%) 1970–1986 (23%) Post-1986 (36%)

Over half of homes in Unionville were built before 1986, when federal law began restricting lead solder in drinking-water plumbing. 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 Unionville

Here the gap between local home values and the estimated repair bill is wide, so the percentage shown below for Unionville stays at or under the 1% mark.

Median Home Value
$117,600
Est. Remediation
$300
Remediation as % of home value 0.3%

Estimated remediation costs in Unionville can be compared with local home values. The $150–$600 estimated range can be set against the median property value; actual costs vary by home. Home values are 33% below the Missouri average.

Unionville: Lead Risk & Vulnerable Populations

64%
Homes Built Before 1986
0.0058
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.

If you have young children or are pregnant, consider testing your home's water - especially if your home was built before 1986.

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

Unionville: NFIP Claim Records and Water-Quality Context

1
Total FEMA Flood Claims
$3,122
Avg Reported Sum With Payment Data
0%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Unionville contains 1 flood insurance claim. Among claims with payment data, the average reported building, contents, and ICC component sum is $3,122. 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 $300 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 violations are on record for water systems serving Unionville?
EPA records list 4 EPA violations, including 2 health-based violations for Unionville water systems. These water-system violations are shown for 1 mapped ZIP code.
Does Unionville water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Unionville is 0.0058 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 Unionville?
Our records map 2 water systems to 1 ZIP code in Unionville. The related population figure in our data is approximately 3,975 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Unionville?
Estimated remediation cost per household in Unionville: $300; modeled range $150 to $600. Estimated costs may include filtration, pipe replacement, radon mitigation, or flood protection where applicable.
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How to cite this page

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

Page version: October 2026.

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