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Water system · PWSID MD0090001

BONNIE BROOK

CAMBRIDGE, MD · ~390 people served

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

PWSID

MD0090001

State

Maryland

City

CAMBRIDGE

Population served

390

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

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

12

Violations on record

0

Unaddressed

2

Health-based

26

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jan 2013. Official EPA record →

Treatment technique · Lead & Copper Rule health-based began Nov 2012 Resolved
Other · EPA contaminant 7000 began Jul 2012 Resolved
Treatment technique · Lead & Copper Rule health-based began Nov 2010 Resolved
Other · EPA contaminant 7000 began Jul 2009 Resolved
Other · EPA contaminant 7000 began Jul 2008 Resolved
Other · EPA contaminant 7000 began Jul 2007 Resolved
Monitoring & reporting · Total coliform began Feb 2005 Resolved
Monitoring & reporting · Lead & Copper Rule began Oct 2004 Resolved
Other · EPA contaminant 7000 began Jul 2003 Resolved
Other · EPA contaminant 7000 began Jul 2000 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 1994 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 1993 Resolved

Recent enforcement actions

  • State action · SOX Jan 2013
  • State action · SOX Jul 2012
  • State action · SOX Apr 2011
  • State action · SOX Jul 2009
  • State action · SOX Sep 2008
  • State action · SO8 Aug 2008
  • State action · SO8 Aug 2008
  • State action · SOX Jul 2007

This profile is built from EPA public records for system MD0090001 — 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.