CITY REPORT MO HEALTH VIOLATIONS: 1

Hatfield, MO: 10 Violations - Home Safety Score unavailable

1 ZIP code · 1 water system · Updated

Data: EPA SDWIS

1
ZIP Codes
1
Water Systems
1
ZIPs Linked to Systems with Violations
Zone 2
County Radon Potential (Moderate)
$300
Est. Remediation

Hatfield Water: The Quick Version

  • Your city's water systems recorded 10 violations since 2021.
  • Average of reported 90th-percentile lead results: 0.0013 mg/L.
  • Homes built before 1986: 41% - older plumbing may contain lead solder.
  • Estimated remediation: $300 per household.
  • Health risk index (ZipCheckup composite of CDC data): 16.06.

Water Systems Serving Hatfield

Because water system records on this page are matched to Hatfield, MO through ZIP codes rather than street addresses, the single system in the list below reflects that matching, while federal data connect 1 to the area overall. Anyone unsure which utility supplies a home can check the water bill or contact the utility directly.

Overview

We track home safety data for 1 ZIP code in Hatfield, Missouri (population ~177), covering 1 community water system serving approximately 3,740 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

Hatfield water systems draw from: Groundwater.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0013 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
Groundwater Rule Treatment Technique 12 1
Haloacetic Acids (HAA5) Disinfection Byproducts 2 1
Total Trihalomethanes (TTHM) Disinfection Byproducts 2 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
64458 — 10 1 Harrison County Pwsd 2

All ZIP Codes in Hatfield

  • 64458 - 10 violations ⚠

Data Sources

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

CDC Health Data for Hatfield

10.7%
Asthma (US: 9.8%)
14.7%
Diabetes (US: 10.4%)
18.3%
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 10.7% ↑
Diabetes 14.7% ↑
Mental Health 18.3% ↑

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

Key Contaminants Detected in Hatfield

Groundwater Rule 12 violations
Treatment Technique
Haloacetic Acids (HAA5) 2 violations
Disinfection Byproducts · EPA regulatory level for the contaminant named above: 0.06 mg/L
Increased cancer risk with long-term exposure above the MCL
Total Trihalomethanes (TTHM) 2 violations
Disinfection Byproducts · EPA regulatory level for the contaminant named above: 0.08 mg/L
Increased cancer risk with long-term exposure above the MCL

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

How Old Is Hatfield's Housing Stock?

1995
Median Build Year
41%
Built Before 1986
39%
Built Before 1970
Copper
Likely Pipe Material

With 41% 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

Homes on the same street in Hatfield can differ: one may keep original pre-1986 plumbing while another has been replumbed, so the 1995 median is only a starting point.

1995
Median Year Built
41%
Pre-1986 (lead solder era; lead paint banned 1978)
39%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (39%) 1970–1986 (2%) Post-1986 (59%)

A significant portion of Hatfield's housing stock predates 1970, so some homes may have older plumbing materials. Residents in older homes should consider water testing.

Source: U.S. Census Bureau ACS B25034.

Protecting Children from Lead in Hatfield

41%
Homes Built Before 1986
0.0013
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.

Frequently Asked Questions

How many violations are on record for water systems serving Hatfield?
EPA records list 10 EPA violations, including 1 health-based violation for Hatfield water systems. These water-system violations are shown for 1 mapped ZIP code.
Does Hatfield water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Hatfield is 0.0013 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 Hatfield?
Our records map 1 water system to 1 ZIP code in Hatfield. The related population figure in our data is approximately 177 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Hatfield?
Estimated remediation cost per household in Hatfield: $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). Hatfield, MO: 10 Violations - Home Safety Score unavailable. https://zipcheckup.com/cities/mo/hatfield/
BibTeX
@misc{zipcheckup-cities-mo-hatfield,
  author = {{ZipCheckup}},
  title  = {{Hatfield, MO: 10 Violations - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/mo/hatfield/}
}

Page version: October 2026.

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