Health Violations Found

Lyndon, KS (66451): 4 Health-Based Violations Recorded for Mapped Water Systems

EPA data combined for 5 water systems mapped to this ZIP (largest mapped system: Osage Company Rwd 3)

Health Violations Found

Health-based violation records by water system:

EPA records for the water systems mapped to 66451 in Lyndon, KS contain 21 recorded violations for inclusive record years 2021 through 2026, all mapped systems combined; 4 are marked health-based.

Data source: U.S. Environmental Protection Agency (EPA) SDWIS

Based on EPA Drinking Water FEMA Flood Data U.S. Census CDC Energy Information Admin. USGS Water Data & 9 more federal sources
Latest air quality, EPA records and weather alerts Current data temporarily unavailable
Current EPA violation data unavailable
Water records and current conditions
Current EPA violation data unavailable
Safety Score N/A
Water Quality Issues 4 health-based violation records
Lead Risk Below action level Below the reporting limit, 90th percentile, sample period ending 2025-12-31
NFIP Claim History Claim records 2 claims
Data confidence: High (direct measurement) Medium (sampled / sub-geography) Low (modeled / inferred) Methodology →

At a Glance

  • Water EPA records for water systems mapped to this ZIP show 4 health-based violations and 17 non-health-based (since 2021).
  • Lead The reported 90th-percentile lead result is below the laboratory reporting limit, not a measured zero; EPA's health goal for lead is zero.
  • Radon EPA Zone 2 - county-level radon potential, not a home measurement.
  • Flood 2 cumulative NFIP claim records. Claim evidence is historical, not current map coverage.
Contaminant Summary
Health Violations
21 violations 4 health-based 2 risks identified
Report data assembled: Jul 27, 2026 EPA water-system identity: source date or period is not present in ZipCheckup's accepted source record EPA violation history: more than two update cycles old Lead, copper and UCMR measurements: source date or period is not present in ZipCheckup's accepted source record
5
Water Systems
900
People Served
4
Health Violations (since 2021)Median is 0
Surface water
Water Source
Zone 2
County Radon Potential · Moderate
$156K
Median Home Value25% above state median ($125K)

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Score Breakdown

Overall Home Safety Score: Score unavailable

Required evidence is missing. Missing values remain unknown and are not imputed or renormalized.

Canonical components

EPA water compliance
54/100
Observed
PFAS MCL screen
Unknown
Evidence missing
EPA radon zone
50/100
Observed
Annual EPA AirData AQI
Unknown
Evidence missing

Required domains

Drinking water
Unknown
Indoor environment
50/100
Outdoor environment
Unknown

Coverage: 2 of 4 components and 1 of 3 domains observed.

Model 4.0.0; series home-safety-v4-cross-vertical.

Safety & Health (7) CRITICAL

Your Water System

ZIP code 66451 in Lyndon, Kansas is mapped to the water system Osage Company Rwd 3 (EPA ID: KS2013910). This system provides water to approximately 900 people from surface water sources.

There are 5 community water systems serving this area.

Lead & Copper in Your Water

The EPA requires water systems to monitor lead and copper levels under the Lead and Copper Rule.

Metal Measured Level EPA Action Level Status Sample Date or Period
Copper Action-level exceedance on record 1.3 mg/L Exceeds action level Not present in ZipCheckup accepted source data
How to read the copper row. EPA's reporting schema defines the copper CU90 code as an action-level exceedance (a system's 90th-percentile copper above the 1.3 mg/L action level), so this row reflects an exceedance on record, not a routine measurement. No copper concentration is shown because no verified unit is available for this value. A system with no copper record has not been shown to be clean: the absence of a recorded exceedance is not a measurement.

Water Systems Serving This Area

System Name EPA ID Population Source
Osage Company Rwd 3 KS2013910 900 Surface water
Osage Company Rwd 5 KS2013904 3,875 Surface water
Osage Company Rwd 2 KS2013912 440 Groundwater
Osage Company Rwd 6 KS2013902 383 Surface water
Osage Company Rwd 7 KS2013906 1,430 Surface water

Other Water Quality Reports in Kansas

Nearby Water Quality Reports

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Osage Company Rwd 3 (KS2013910) on EPA.gov.

5 of the top compounds applied across the surrounding county in USGS pesticide-use estimates appear on EPA drinking-water monitoring lists. See the agricultural pesticide-use section.

📊 EPA Safe Drinking Water · View source →

Compliance History

2021 2022 3 2023 2024 1 2025
Health-based (MCL/TT) Other violations

Health Risks from Detected Contaminants

Radium-226

High Risk

EPA reference value: 5 pCi/L (MCL for combined Radium-226 & 228)

Increased cancer risk, including bone cancer (known carcinogen)

At-risk groups: people who drink water with radium above the MCL over many years

Treatment options (verify a product is certified to reduce this contaminant): ion exchange (water softener), reverse osmosis, lime softening · Find a filter →

Learn more about Radium-226 in drinking water →

Radium-228

High Risk

EPA reference value: 5 pCi/L (MCL for combined Radium-226 & 228)

Increased cancer risk, including bone cancer (known carcinogen)

At-risk groups: people who drink water with radium above the MCL over many years

Treatment options (verify a product is certified to reduce this contaminant): ion exchange (water softener), reverse osmosis, lime softening · Find a filter →

Learn more about Radium-228 in drinking water →

📊 EPA SDWIS + SDWA · View source →
Environmental Hazards (11) HIGH
Home & Infrastructure (6) HIGH

Possible home maintenance concerns - talk to a local expert.

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Cost & Community (9) HIGH

CPSC product recall notices

These national notices are not matched to this ZIP code or water system.

View all recalls →

📊 CPSC · View source →

Protect Your Home in Lyndon

Based on local data for ZIP 66451, these services may benefit homeowners in your area.

Based on local data for your area. Use the tools below to explore your options.

Home & Flood Insurance

The ZIP code for this report in Lyndon has 2 FEMA flood claims on record. Standard homeowner policies don't cover flood damage - make sure you're protected.

Typical cost: Flood insurance: premiums vary by property and flood zone; request a quote

Check Your Flood Zone (Free)

FEMA flood map lookup - see if your property is in a flood zone

Free tip: Check your FEMA flood zone at msc.fema.gov (free lookup)

Gutter Installation & Repair

The median home in 66451 was built around 1967. Aging gutters can cause foundation damage, basement flooding, and mold - a professional assessment can prevent costly repairs.

Typical cost: Gutter installation: typically $1,000–$2,500 for a standard home

Estimate Your Home Maintenance Costs

Window Replacement

The median build year of homes in Lyndon is 1967; check the age and condition of your own windows. ENERGY STAR windows can save $101–$583/year on energy bills.

Typical cost: Window replacement: typically $300–$800 per window installed

Estimate Your Home Maintenance Costs

Roofing Inspection & Repair

Homes built around 1967 may be on their second or third roof. A professional inspection can catch damage before leaks start.

Typical cost: Roof inspection: typically $75–$300; repairs $300–$1,500

Estimate Your Home Insurance Needs

Service recommendations are based on public data for this ZIP code (FEMA, Census ACS, NWS). Actual needs vary by property. By calling, your information will be shared with an independent service provider. ZipCheckup may receive compensation. Cost estimates are approximate and vary by property, condition, and contractor.

Frequently Asked Questions

Is the tap water in 66451 safe to drink?

EPA SDWIS records 21 violations since 2021 across the water systems mapped to ZIP 66451 (primary system: Osage Company Rwd 3), including 4 health-based. The violation table above shows which system each record belongs to. ZipCheckup last updated this page in July 2026. The federal source release date is unavailable, so that month is not presented as source currency.

Where does 66451's water come from?

The recorded water source for Osage Company Rwd 3, a system mapped to ZIP code 66451, is Surface water. This system serves approximately 900 people.

How can I get my water tested in Lyndon?

If Osage Company Rwd 3 supplies your home, contact it for its Consumer Confidence Report; otherwise contact the water utility that serves your address, or hire a certified lab for independent home water testing. The EPA recommends annual testing if you use a private well.

What is the radon risk for 66451?

66451 is mapped to a county in EPA Radon Zone 2 (moderate county-level radon potential; EPA recommends testing every home), located in Osage County. EPA radon zones range from Zone 1 (highest county-level potential) to Zone 3 (lowest). Testing your home is recommended regardless of zone.

What does the NFIP claim history show for ZIP 66451?

FEMA records contain 2 flood insurance claims filed in ZIP code 66451; the recorded rated-zone value (the most frequent one if there are several claims) is A, which is claims evidence and may differ from the current FEMA map zone for a property. Claim records do not establish current property risk. Review FEMA's map for the specific property.

How to cite this page

APA ZipCheckup. (2026). Lyndon, KS (66451): 4 Health-Based Violations Recorded for Mapped Water Systems. https://zipcheckup.com/report/66451/
BibTeX 
@misc{zipcheckup-report-66451,
  author = {{ZipCheckup}},
  title  = {{Lyndon, KS (66451): 4 Health-Based Violations Recorded for Mapped Water Systems}},
  year   = {2026},
  url    = {https://zipcheckup.com/report/66451/}
}

Page version: October 2026.

Nearby ZIP Code Reports

Water quality comparison for ZIP codes near 66451

ZIP Code City, State Distance Grade Violations
66543 Vassar, KS 4.3 mi N/A 0
66523 Osage City, KS 8.1 mi N/A 4
66528 Quenemo, KS 8.7 mi N/A 7
66510 Melvern, KS 9.6 mi N/A 3
66537 Scranton, KS 11.1 mi N/A 8
66413 Burlingame, KS 12.3 mi N/A 6
66076 Pomona, KS 12.6 mi N/A 2
66524 Overbrook, KS 12.6 mi N/A 9
66414 Carbondale, KS 12.8 mi N/A 6
66856 Lebo, KS 17.0 mi N/A 8

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