CITY REPORT KS

Walnut, KS: 10 Violations - Home Safety Score unavailable

1 ZIP code · 4 water systems · Updated

Data: EPA SDWIS

1
ZIP Codes
4
Water Systems
1
ZIPs Linked to Systems with Violations
Zone 2
County Radon Potential (Moderate)
$155K
Median Home Value
$500
Est. Remediation (0.3% of home value)

Key Facts for Walnut Residents

  • Your city's water systems recorded 10 violations since 2021.
  • Average of reported 90th-percentile lead results: 0.0038 mg/L.
  • Homes built before 1986: 74% - older plumbing may contain lead solder.
  • Estimated remediation: $500 per household.
  • Health risk index (ZipCheckup composite of CDC data): 13.36.

Walnut's Water Providers

Federal records list 4 water systems tied to Walnut, KS. Of those, 3 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 Walnut, Kansas (population ~624), covering 4 community water systems serving approximately 11,368 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

Walnut water systems draw from: Groundwater, Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0038 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
Public Notice Rule Reporting 4 1
Revised Total Coliform Rule Microbiological 4 1
Chlorine Disinfectant 4 1
Haloacetic Acids (HAA5) Disinfection Byproducts 2 1
Total Trihalomethanes (TTHM) Disinfection Byproducts 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
66780 — 10 0 Crawford Company Rwd 1c

All ZIP Codes in Walnut

  • 66780 - 10 violations recorded for mapped water systems

Data Sources

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

Walnut Community Health Snapshot

10.5%
Asthma (US: 9.8%)
11.2%
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 10.5% ↑
Diabetes 11.2% ↑
Mental Health 18.3% ↑

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

What's in Walnut's Water?

Public Notice Rule 4 violations
Reporting
Revised Total Coliform Rule 4 violations
Microbiological
Indicates possible bacterial contamination
Chlorine 4 violations
Disinfectant · EPA regulatory level for the contaminant named above: 4 mg/L

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

Walnut Infrastructure Age

1901
Median Build Year
74%
Built Before 1986
61%
Built Before 1970
Galvanized Steel or Lead
Likely Pipe Material

With 74% 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

Some homes in Walnut predate the 1986 federal restrictions on lead in new pipe and solder, so a tap test is a reasonable step for older homes; median build year: 1901.

1901
Median Year Built
74%
Pre-1986 (lead solder era; lead paint banned 1978)
61%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (61%) 1970–1986 (13%) Post-1986 (26%)

Over half of homes in Walnut 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 Walnut

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

Median Home Value
$154,500
Est. Remediation
$500
Remediation as % of home value 0.3%

Estimated remediation costs in Walnut can be compared with local home values. The $300–$800 estimated range can be set against the median property value; actual costs vary by home. Home values are 2% above the Kansas average.

Walnut: Lead Risk & Vulnerable Populations

74%
Homes Built Before 1986
0.0038
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 Walnut?
EPA records list 10 EPA violations for Walnut water systems. These water-system violations are shown for 1 mapped ZIP code.
Does Walnut water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Walnut is 0.0038 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 Walnut?
Our records map 4 water systems to 1 ZIP code in Walnut. The related population figure in our data is approximately 624 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Walnut?
Estimated remediation cost per household in Walnut: $500; modeled range $300 to $800. 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). Walnut, KS: 10 Violations - Home Safety Score unavailable. https://zipcheckup.com/cities/ks/walnut/
BibTeX
@misc{zipcheckup-cities-ks-walnut,
  author = {{ZipCheckup}},
  title  = {{Walnut, KS: 10 Violations - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/ks/walnut/}
}

Page version: October 2026.

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