ZipCheckup grade for 42259: B.

The model grade is high, but the records on this page include findings worth reviewing.

Your top priority: match a filter's certification to the violations (13 health-based violations). Check your ZIP → NSF certified filters

Health Violations Found
B 74

Mammoth Cave, KY (42259): 13 Health-Based Violations Recorded for Mapped Water Systems - 74/100

EPA data for Edmonson Company Water District

Health Violations Found

Health-based violation records by water system:

EPA records for the water systems mapped to 42259 in Mammoth Cave, KY contain 14 recorded violations for inclusive record years 2021 through 2026, all mapped systems combined; 13 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
B 74/100
Water Quality Issues 13 health-based violation records
Lead Risk Moderate 0.005 mg/L, 90th percentile, sample period ending 2023-12-31
NFIP Claim History N/A
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 13 health-based violations and 1 non-health-based (since 2021).
  • Lead The reported 90th-percentile lead result of 0.005 mg/L is below the EPA action level, but EPA's health goal for lead is zero; filtration is advisable.
  • Radon EPA Zone 2 - county-level radon potential, not a home measurement.
Contaminant Summary
Health Violations
14 violations 13 health-based
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 Consumer Confidence Report: source date or period is not present in ZipCheckup's accepted source record
B
ZIP-level Home Safety model score: 74 / 100
Bottom 49% of U.S. ZIP codes
1
Water System
17,848
People Served
13
Health Violations (since 2021)Median is 0
Surface water
Water Source
0.005 mg/L
Reported Lead Result2.2× the national median for this measure
Zone 2
County Radon Potential · Moderate
$167K
Median Home Value28% above state median ($131K)

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Score Breakdown

Overall Home Safety Score: 74/100

This is the published model score. Component and domain values are shown independently; they are not added together on this page.

Canonical components

EPA water compliance
46/100
Observed
PFAS MCL screen
100/100
Observed
EPA radon zone
50/100
Observed
Annual EPA AirData AQI
100/100
Observed

Required domains

Drinking water
73/100
Indoor environment
50/100
Outdoor environment
100/100

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

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

Safety & Health (7) CRITICAL

Your Water System

ZIP code 42259 in Mammoth Cave, Kentucky is mapped to the water system Edmonson Company Water District (EPA ID: KY0310114). This system provides water to approximately 17,848 people from surface water sources.

Other Water Quality Reports in Kentucky

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 Edmonson Company Water District (KY0310114) 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 2023 6 2024 5 2025 1
Health-based (MCL/TT) Other violations

UCMR 5 PFAS monitoring: no reportable detections in available records

Available federal UCMR5 records for water systems mapped to ZIP code 42259 show no PFAS detections among the compounds tested, at the program's reporting levels.

The EPA Fifth Unregulated Contaminant Monitoring Rule (UCMR5) required community and non-transient non-community water systems serving 3,300 or more people to test for 29 PFAS compounds and lithium between 2023 and 2025. Systems with no detections at the federal minimum reporting level had no results at or above that reporting level.

📊 EPA UCMR5 · View source →
Environmental Hazards (10) MODERATE
Home & Infrastructure (6) MODERATE
Cost & Community (8) OK

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 Mammoth Cave

Based on local data for ZIP 42259, these services may benefit homeowners in your area.

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

Roofing Inspection & Repair

Active weather alerts in Kentucky 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 42259 safe to drink?

EPA SDWIS records 14 violations since 2021 across the water systems mapped to ZIP 42259 (primary system: Edmonson Company Water District), including 13 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 42259's water come from?

The recorded water source for Edmonson Company Water District, a system mapped to ZIP code 42259, is Surface water. This system serves approximately 17,848 people.

How does Mammoth Cave water compare to the national average?

Mammoth Cave's Home Safety Score ranks lower than 51% of U.S. ZIP codes, and at or above 54% within Kentucky.

How can I get my water tested in Mammoth Cave?

If Edmonson Company Water District 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.

Is lead a concern in 42259 tap water?

The Lead and Copper Rule record selected for 42259 reports a 90th-percentile lead result of 0.005 mg/L for a water system mapped to this ZIP (record date 2023-12-31). The EPA action level is 0.015 mg/L. This result is below the EPA action level; it does not show the lead level in each home.

What is the radon risk for 42259?

42259 is mapped to a county in EPA Radon Zone 2 (moderate county-level radon potential; EPA recommends testing every home), located in Edmonson County. EPA radon zones range from Zone 1 (highest county-level potential) to Zone 3 (lowest). Testing your home is recommended regardless of zone.

How to cite this page

APA ZipCheckup. (2026). Mammoth Cave, KY (42259): 13 Health-Based Violations Recorded for Mapped Water Systems - 74/100. https://zipcheckup.com/report/42259/
BibTeX
@misc{zipcheckup-report-42259,
  author = {{ZipCheckup}},
  title  = {{Mammoth Cave, KY (42259): 13 Health-Based Violations Recorded for Mapped Water Systems - 74/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/report/42259/}
}

Page version: October 2026.

Nearby ZIP Code Reports

Water quality comparison for ZIP codes near 42259

ZIP Code City, State Distance Grade Violations
42729 Cub Run, KY 5.4 mi N/A 16
42207 Bee Spring, KY 6.2 mi N/A 14
42285 Sweeden, KY 7.2 mi N/A 14
42210 Brownsville, KY 7.9 mi B 16
42726 Clarkson, KY 10.8 mi N/A 15
42275 Roundhill, KY 13.2 mi B 14
42765 Munfordville, KY 13.7 mi N/A 17
42160 Park City, KY 14.5 mi N/A 14
42163 Rocky Hill, KY 14.7 mi N/A 0
42754 Leitchfield, KY 15.1 mi N/A 15

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Coverage: 14/17 risk factors Data sources →
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