Water Quality Report

Saint Marys, KS (66536): 1 Violation Recorded for Mapped Water Systems

EPA data for Pottawatomie Company Rwd 4

High County Radon Potential

EPA records for the water systems mapped to 66536 in Saint Marys, KS contain 1 recorded violations for inclusive record years 2021 through 2026, all mapped systems combined; 0 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

Safety Score N/A

Water Quality Concerns 1 non-health-based violation record in EPA data

Lead Risk Below action level Below the reporting limit, 90th percentile, sample period ending 2023-12-31

NFIP Claim History Claim records 27 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 1 violation (non-health) (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 1 - highest county-level potential. This is not a home measurement; test before any threshold comparison.
Flood 27 cumulative NFIP claim records. Check the current FEMA map for a specific address.

Contaminant Summary

Violations on record (not health-based)

1 violation

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

Water System

1,125

People Served

Health Violations (since 2021)

Groundwater

Water Source

Zone 1

County Radon Potential · High

$211K

Median Home Value69% 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

98/100

Observed

PFAS MCL screen

Unknown

Evidence missing

EPA radon zone

0/100

Observed

Annual EPA AirData AQI

Unknown

Evidence missing

Required domains

Drinking water

Unknown

Indoor environment

0/100

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 (6) HIGH

Your Water System

ZIP code 66536 in Saint Marys, Kansas is mapped to the water system Pottawatomie Company Rwd 4 (EPA ID: KS2014922). This system provides water to approximately 1,125 people from groundwater sources.

Other Water Quality Reports in Kansas

66002 (Atchison) - 18 violations recorded for mapped water systems
66006 (Baldwin City) - 6 violations recorded for mapped water systems
66007 (Basehor) - 5 violations recorded for mapped water systems
66008 (Bendena) - 7 violations recorded for mapped water systems
66010 (Blue Mound)
66012 (Bonner Springs) - 13 violations recorded for mapped water systems
66013 (Bucyrus) - 5 violations recorded for mapped water systems
66014 (Centerville) - 14 violations recorded for mapped water systems
66015 (Colony) - 1 violation recorded for mapped water systems
66016 (Cummings)
66017 (Denton)
66018 (De Soto) - 6 violations recorded for mapped water systems
66019 (Clearview City)
66020 (Easton) - 6 violations recorded for mapped water systems
66021 (Edgerton) - 7 violations recorded for mapped water systems
66023 (Effingham)
66024 (Elwood) - 11 violations recorded for mapped water systems
66025 (Eudora) - 10 violations recorded for mapped water systems
66026 (Fontana) - 34 violations recorded for mapped water systems
66027 (Fort Leavenworth)

Nearby Water Quality Reports

66407 (Belvue) - 7 mi - 1 violation recorded for mapped water systems
66533 (Rossville) - 7 mi - 3 violations recorded for mapped water systems
66422 (Emmett) - 7 mi - 1 violation recorded for mapped water systems
66418 (Delia) - 7 mi - 4 violations recorded for mapped water systems
66526 (Paxico) - 10 mi - 11 violations recorded for mapped water systems
66507 (Maple Hill) - 11 mi - 11 violations recorded for mapped water systems
66539 (Silver Lake) - 13 mi - 3 violations recorded for mapped water systems
66547 (Wamego) - 13 mi - 12 violations recorded for mapped water systems
66501 (Mc Farland) - 14 mi
66401 (Alma) - 18 mi - 13 violations recorded for mapped water systems

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Pottawatomie Company Rwd 4 (KS2014922) 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 →

Environmental Hazards (11) MODERATE

Home & Infrastructure (6) OK

Cost & Community (8) 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 Saint Marys

Based on local data for ZIP 66536, 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 Saint Marys has 27 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 66536 was built around 1988. 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

Roofing Inspection & Repair

Active weather alerts in Kansas increase the risk of roof damage from hail and high winds. A professional inspection can identify vulnerabilities.

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 66536 safe to drink?

EPA SDWIS records 1 violation since 2021 across the water systems mapped to ZIP 66536 (primary system: Pottawatomie Company Rwd 4), including 0 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 66536's water come from?

The recorded water source for Pottawatomie Company Rwd 4, a system mapped to ZIP code 66536, is Groundwater. This system serves approximately 1,125 people.

How can I get my water tested in Saint Marys?

If Pottawatomie Company Rwd 4 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 66536?

66536 is mapped to a county in EPA Radon Zone 1 (high county-level radon potential; EPA recommends testing every home), located in Pottawatomie 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 66536?

FEMA records contain 27 flood insurance claims filed in ZIP code 66536; the recorded rated-zone value (the most frequent one if there are several claims) is B, 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). Saint Marys, KS (66536): 1 Violation Recorded for Mapped Water Systems. https://zipcheckup.com/report/66536/

BibTeX

@misc{zipcheckup-report-66536,
  author = {{ZipCheckup}},
  title  = {{Saint Marys, KS (66536): 1 Violation Recorded for Mapped Water Systems}},
  year   = {2026},
  url    = {https://zipcheckup.com/report/66536/}
}

Page version: October 2026.

Nearby ZIP Code Reports

Water quality comparison for ZIP codes near 66536

ZIP Code	City, State	Distance	Grade	Violations
66407	Belvue, KS	6.6 mi	N/A	1
66533	Rossville, KS	7.1 mi	N/A	3
66422	Emmett, KS	7.3 mi	N/A	1
66418	Delia, KS	7.4 mi	N/A	4
66526	Paxico, KS	10.2 mi	N/A	11
66507	Maple Hill, KS	10.8 mi	N/A	11
66539	Silver Lake, KS	13.0 mi	N/A	3
66547	Wamego, KS	13.2 mi	N/A	12
66501	Mc Farland, KS	13.5 mi	N/A	0
66401	Alma, KS	17.8 mi	N/A	13