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Water system · PWSID OH3000111

CAMBRIDGE, CITY OF

CAMBRIDGE, OH · ~10,520 people served

Check your exact address → CAMBRIDGE overview
90
Excellent
PurityRadar safety score

PWSID

OH3000111

State

Ohio

City

CAMBRIDGE

Population served

10,520

Primary source

Surface water

Score history

▼ 10 points — the score moved from 100 to 90 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 90

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

PFOA

Perfluorooctanoic acid

4.3 ppt

limit 4 ppt

Above EPA limit · 1.1×

PFBA

5.4 ppt

limit —

No federal limit

Violations & enforcement

107

Violations on record

1

Unaddressed

81

Health-based

279

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Aug 2019. Official EPA record →

Other · EPA contaminant 7000 began Nov 2018 Unaddressed
Treatment technique · EPA contaminant 0200 health-based began Jun 2019 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2017 Resolved
Other · EPA contaminant 7500 began Sep 2016 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2016 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Oct 2013 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Oct 2013 Resolved
Treatment technique · EPA contaminant 0300 health-based began Jun 2007 Resolved
Monitoring & reporting · EPA contaminant 0300 began Jun 2007 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 2005 Resolved
Monitoring & reporting · EPA contaminant 0300 began Nov 2003 Resolved
Treatment technique · Bromate health-based began Jan 2003 Resolved

Recent enforcement actions

  • State action · SIF Aug 2019
  • State action · SOX Jul 2019
  • State action · SIE Jul 2019
  • State action · SIA Jul 2019
  • State action · SIA Nov 2018
  • State action · SOX May 2017
  • State action · SIF Mar 2017
  • State action · SIA Feb 2017

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 Dec 2024

267 · max 364 ug/L · 15

Copper

1 station · latest Nov 2024

2.63 · max 5.57 ug/L · 10

Arsenic

1 station · latest Oct 2024

2.47 · max 2.72 ug/L · 4

Lead

1 station · latest Aug 2024

3.92 · max 5.28 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 OH3000111 — 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.