EPA data as of Oct 2026 · page updated 2026-10-30

Nicholas Co Water District

Nicholas Co Water District (EPA ID KY0910314) in Calisle, KY supplies surface water (rivers, lakes) to about 4,089 people: 12 violations since 2016, latest lead result 3 ppb, PFAS not detected.

Service area

EPA service-area boundary (state-supplied or EPA-modeled)
Water utility service area PFOA/PFOS ≥ 4 ppt Lead > 15 ppb 5+ violations Superfund site (active) proposed cleaned up Circles: other water systems flagged nearby; size = people served. Tap any symbol for details.

System facts

People served4,089
Connections1,663
Sourcesurface water (rivers, lakes)
WholesalerNo

Health-based violations

Contaminant or ruleHealth-based violations since 2016
Total Haloacetic Acids (Haa5)8
TTHM4

A health-based violation means a contaminant exceeded its legal limit (MCL) or a required treatment technique was not met, as reported by the state to EPA’s SDWIS. All are listed as resolved or archived; the latest began Oct 2019.

Lead

Jan 20243 ppb
Jan 20214 ppb
Jan 20182 ppb
Jan 20150 ppb
Jan 20122 ppb
Jan 20090 ppb
Jan 20060 ppb
Jan 20024 ppb

90th-percentile lead per sampling round (90% of the homes sampled were at or below this level). Black line: EPA’s 15 ppb action level; under the Lead and Copper Rule Improvements the action level becomes 10 ppb from 2027.

PFAS

CompoundHighest resultSamples with detectionEPA limit
PFNAnot detected0 of 16—
HFPO-DA (GenX)not detected0 of 16—
PFBAnot detected0 of 16—
PFPeAnot detected0 of 16—
PFHxSnot detected0 of 16—
PFHpAnot detected0 of 16—
PFOSnot detected0 of 164 ppt MCL
PFOAnot detected0 of 164 ppt MCL
PFDAnot detected0 of 16—
PFHxAnot detected0 of 16—
PFBSnot detected0 of 16—

EPA Fifth Unregulated Contaminant Monitoring Rule (UCMR 5), samples 2023–2025; ppt = parts per trillion (ng/L). The 4.0 ppt maximum contaminant levels for PFOA and PFOS were set by EPA in 2024; water systems have until the end of the decade to comply.

ZIP codes served

ZIP codes whose center lies in this system’s service area.

What this is — and isn’t. These are records your water utility and state reported to the EPA, and the EPA’s radon map for your county. They describe the system and the area, not the water from your own tap or the air in your home. For that, read your utility’s annual Consumer Confidence Report and test: lead and radon tests are inexpensive.

Questions

Has Nicholas Co Water District had drinking water violations?

Health-based violations since 2016: Total Haloacetic Acids (Haa5), TTHM. All are listed as resolved.

What is the lead level in Nicholas Co Water District water?

The latest 90th-percentile lead result (Jan 2024) was 3 ppb. EPA’s action level is 15 ppb (10 ppb from 2027).

Does Nicholas Co Water District have PFAS in its water?

None of the tested PFAS were found above EPA’s reporting limits in 2023–2025.