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Water system · PWSID OH0501214

NELSONVILLE PWS

NELSONVILLE, OH · ~6,656 people served

Check your exact address → NELSONVILLE overview
100
Excellent
PurityRadar safety score

PWSID

OH0501214

State

Ohio

City

NELSONVILLE

Population served

6,656

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 100

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

Latest detections from EPA’s UCMR5 monitoring (through Aug 2025). Levels in parts per trillion (ppt).

Lithium

15,000 ppt

limit —

No federal limit

Violations & enforcement

134

Violations on record

4

Unaddressed

15

Health-based

159

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2025. Official EPA record →

Other · EPA contaminant 7000 began Nov 2025 Unaddressed
Reporting · EPA contaminant 5200 began Jul 2025 Unaddressed
Other · EPA contaminant 7500 began Jul 2025 Unaddressed
Monitoring & reporting · Total trihalomethanes (TTHM) began Jul 2025 Unaddressed
Other · EPA contaminant 7000 began Jan 2024 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2024 Resolved
Other · EPA contaminant 7000 began Aug 2022 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2022 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2020 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2019 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2019 Resolved
Other · EPA contaminant 7000 began Dec 2018 Resolved

Recent enforcement actions

  • State action · SIE Dec 2025
  • State action · SIA Dec 2025
  • State action · SIA Nov 2025
  • State action · SIA Nov 2025
  • State action · SIA Oct 2025
  • State action · SIE Oct 2025
  • State action · SIF Jun 2025
  • State action · SIF Jun 2025

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Manganese

1 station · latest Aug 2021

94.2 · max 142 ug/L · 5

Arsenic

1 station · latest Aug 2021

2.16 · max 2.36 ug/L · 4

Copper

1 station · latest Jul 2021

2.41 · max 2.78 ug/L · 2

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system OH0501214 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.