Mammoth Cave, KY: 13 Health Violations - Home Safety 74/100
1 ZIP code · 1 water system · Updated
ZipCheckup grade for Mammoth Cave: B.
This ZIP has a few items worth a quick check.
Your top priority: match a filter's certification to the violations (13 health-based violations). NSF certified filters →
Across Mammoth Cave, KY, the overall grade falls in the upper range - a summary score, not a measurement taken at any single tap.
How Mammoth Cave Compares
Data: EPA SDWIS
What You Should Know About Mammoth Cave Water
- Your city's water systems recorded 14 violations since 2021.
- Average of reported 90th-percentile lead results: 0.005 mg/L.
- Homes built before 1986: 46% - older plumbing may contain lead solder.
- Estimated remediation: $600 per household.
Who Supplies Your Water in Mammoth Cave
Mammoth Cave, KY: one listed entry, 1 linked overall.
- B
Overview
We track home safety data for 1 ZIP code in Mammoth Cave, Kentucky (population ~1,111), covering 1 community water system serving approximately 17,848 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. 13 health-based violations appear in the available health breakdown.
Home Safety Score
Average Home Safety Score for Mammoth Cave: B (74/100)
Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| PFAS MCL Screen | UCMR 5 testing against the covered federal MCLs |
| Radon Risk | EPA radon zone classification |
| Annual AQI | EPA AirData county-year median with at least 90 observed days |
Water Sources
Mammoth Cave water systems draw from: Surface water.
Lead & Copper
- Average of reported 90th-percentile lead results: 0.0050 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 |
|---|---|---|---|
| Long Term 2 Enhanced Surface Water Treatment Rule | Treatment Technique | 18 | 1 |
| Interim Enhanced Surface Water Treatment Rule | Treatment Technique | 10 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 42259 | B | 14 | 13 | Edmonson Company Water District |
All ZIP Codes in Mammoth Cave
- 42259 [B] - 14 violations ⚠
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
Top Contaminants in Mammoth Cave Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Housing & Infrastructure in Mammoth Cave
With 46% 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
For a household in Mammoth Cave, a certified lab test of tap water answers what the median build year of 1998 cannot.
Most homes in Mammoth Cave were built after 1986; lead exposure at a tap still depends on its service line and plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
Cost Context: What Remediation Means for Mammoth Cave Homeowners
This section sets two area figures side by side for Mammoth Cave: the median home value and an estimated remediation cost. Here the estimate equals no more than 1% of that value, which places the city in the low tier; it is an area estimate, and the cost for any one property can be higher or lower.
Estimated remediation costs in Mammoth Cave can be compared with local home values. The $300–$1,500 estimated range can be set against the median property value; actual costs vary by home. Home values are 12% above the Kentucky average.
Lead Exposure Risk for Children in Mammoth Cave
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.
Deep Dive Reports
Detailed analysis for Mammoth Cave, KY