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Water system · PWSID OH3901111

NORWALK CITY PWS

NORWALK, OH · ~17,466 people served

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

PWSID

OH3901111

State

Ohio

City

NORWALK

Population served

17,466

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 Oct 2023). Levels in parts per trillion (ppt).

PFBA

5.4 ppt

limit —

No federal limit

Violations & enforcement

12

Violations on record

0

Unaddressed

7

Health-based

33

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 2022. Official EPA record →

Monitoring & reporting · Haloacetic acids (HAA5) began Oct 2021 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Oct 2021 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jul 2021 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jul 2021 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2004 Resolved
Other · EPA contaminant 7000 began Jul 2004 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2004 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2003 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2003 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2002 Resolved
Max contaminant level (MCL) · EPA contaminant 2050 health-based began Jul 1997 Resolved
Max contaminant level (MCL) · Gross alpha health-based began Oct 1984 Resolved

Recent enforcement actions

  • State action · SIF Jun 2022
  • State action · SIF Jun 2022
  • State action · SIA Mar 2022
  • State action · SIE Mar 2022
  • State action · SIE Mar 2022
  • State action · SIA Mar 2022
  • State action · SOX Mar 2022
  • State action · SOX Jun 2007

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 Jul 2024

76.2 · max 76.2 ug/L · 1

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 OH3901111 — 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.