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Water system · PWSID OH5501211

PIQUA CITY PWS

PIQUA, OH · ~20,354 people served

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

PWSID

OH5501211

State

Ohio

City

PIQUA

Population served

20,354

Primary source

Surface water

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 Nov 2025). Levels in parts per trillion (ppt).

PFPeA

3.1 ppt

limit —

No federal limit

Violations & enforcement

15

Violations on record

4

Unaddressed

8

Health-based

41

Enforcement actions

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

Reporting · EPA contaminant 5200 began Jul 2025 Unaddressed
Other · EPA contaminant 7000 began Aug 2022 Unaddressed
Other · EPA contaminant 7000 began Oct 2020 Unaddressed
Other · EPA contaminant 7000 began Jan 2020 Unaddressed
Other · EPA contaminant 7500 began Aug 2022 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Apr 2021 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2015 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2012 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2011 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2011 Resolved
Treatment technique · EPA contaminant 0200 health-based began Dec 2008 Resolved
Treatment technique · EPA contaminant 0200 health-based began Aug 2008 Resolved

Recent enforcement actions

  • State action · SIE Oct 2025
  • State action · SIA Oct 2025
  • State action · SIF Jun 2023
  • State action · SOX Jun 2023
  • State action · SIA Dec 2022
  • State action · SIA Aug 2022
  • State action · SOX Sep 2021
  • State action · SIE Aug 2021

This profile is built from EPA public records for system OH5501211 — 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.