CITY REPORT MO

Union Star, MO: 8 Violations - Home Safety Score unavailable

1 ZIP code · 3 water systems · Updated

Data: EPA SDWIS

1
ZIP Codes
3
Water Systems
1
ZIPs with Violations
$122K
Median Home Value

Union Star Water: The Quick Version

  • Your city's water systems recorded 8 violations in the past 5 years.
  • Average lead level: 0.0012 mg/L.
  • Homes built before 1986: 73% - older plumbing may contain lead solder.
  • CDC health risk index: 14.63 - above typical levels.

Water Systems Serving Union Star

Across Union Star, MO, residential water comes from 3 primary utilities rather than a single consolidated provider. Each system operates independently - managing its own distribution infrastructure, rate schedules, and EPA compliance filings. Federal records track 3 water systems in the area, with these top providers accounting for the majority of residential connections.

Overview

We track home safety data for 1 ZIP code in Union Star, Missouri (population ~1,066), covering 3 community water systems serving approximately 11,815 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

Union Star water systems draw from: Groundwater.

Lead & Copper

  • Average lead level (90th percentile): 0.0012 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 1 ZIP code with known status exceed the EPA lead action level

Top Contaminants

Contaminant Category Violations ZIPs Affected
Total Trihalomethanes (TTHM) Disinfection Byproducts 4 1
Haloacetic Acids (HAA5) Disinfection Byproducts 4 1
Stage 1 DBP Rule Treatment Technique 2 1
Stage 2 DBP Rule Treatment Technique 2 1
Surface Water Treatment Rule Treatment Technique 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
64494 8 0 Dekalb County Pwsd 1

All ZIP Codes in Union Star

Data Sources

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

CDC Health Data for Union Star

10.4%
Asthma (US: 9.8%)
12.5%
Diabetes (US: 10.4%)
17.2%
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 10.4% ↑
Diabetes 12.5% ↑
Mental Health 17.2% ↑

Vertical line = national average. Above national · Below national

Key Contaminants Detected in Union Star

Total Trihalomethanes (TTHM) 4 violations
Disinfection Byproducts · EPA limit: 0.08 mg/L
Increased cancer risk with long-term exposure
Haloacetic Acids (HAA5) 4 violations
Disinfection Byproducts · EPA limit: 0.06 mg/L
Increased cancer risk with long-term exposure
Stage 1 DBP Rule 2 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 Union Star's Housing Stock?

1967
Median Build Year
73%
Built Before 1986
48%
Built Before 1970
Galvanized Steel or 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 median home in Union Star was built in 1967 - a figure that places most of the city's residential stock in the era when lead solder was still standard in copper plumbing. Homes built before 1986 may have lead-soldered joints; those built before 1970 face the additional possibility of lead pipes in the service line itself.

1967
Median Year Built
73%
Pre-1986 (Lead Paint Risk)
48%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (48%) 1970–1986 (25%) Post-1986 (27%)

Over half of homes in Union Star 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 Union Star

73%
Homes Built Before 1986
0.0012
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.

Despite citywide averages serving as the standard public reference point, those aggregates cannot resolve what is happening at one specific faucet - and where 73% of Union Star homes come from before the solder rule or where utility samples sit at or above the action mark, the gap between system data and faucet reality matters more than it does in lower-exposure communities. An in-home draw closes that gap, with certified filtration through retailer networks available where confirmed faucet results 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 Union Star have?
Union Star water systems have a total of 8 EPA violations. Violations are tracked across 1 ZIP code.
Does Union Star water have lead?
The average 90th-percentile lead level in Union Star is 0.0012 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 Union Star?
Union Star is served by 3 public water systems across 1 ZIP code, serving approximately 1,066 people.
HomeCitiesMissouri → Union Star, MO

How to cite this page

APA ZipCheckup. (2026). Union Star, MO: 8 Violations - Home Safety Score unavailable. https://zipcheckup.com/cities/mo/union-star/
BibTeX
@misc{zipcheckup-cities-mo-union-star,
  author = {{ZipCheckup}},
  title  = {{Union Star, MO: 8 Violations - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/mo/union-star/}
}

Page version: August 2026.

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