States › Michigan › Macomb County

Macomb County, MI Water Quality

Water quality data for 20 public water systems serving Macomb County, Michigan — based on EPA SDWIS enforcement records, lead testing results, and health-based violation history.

📅 2026 Report 🔄 Data updated 2026 Q2 📍 20 water systems · 24 cities
✅
Excellent — All Systems Performing Well

Water quality across the county is outstanding with minimal violations and very low lead levels.

A

Macomb County Earns a A

Macomb County: 24 communities across 20 water systems. 100.0% have no open violations.

  • Median lead where detected: 1.70 ppb
  • 9 communities with a lead detection, 14 reporting none detected
  • 0 communities with PFAS above the federal limit
  • 0 with significant inspection deficiencies
  • 100.0% of communities have no open violations
1.7 ppb
Median Lead Level
County-wide, 90th percentile
20
Water Systems
Active CWS & NTNCWS
100%
Violation-Free
No active violations on record
How we grade counties: MyWaterIQ uses EPA SDWIS enforcement data — actual MCL violations and lead test results — not the aspirational MCLG targets used by some sites. A grade reflects real compliance history, not theoretical risk. Learn more →

Cities by Water Quality

⭐ Best Performing
  • Warren
    2.70 ppb
    No federal limits exceeded on record
    A
  • Sterling Heights
    Not detected
    No federal limits exceeded on record
    A
  • Clinton charter
    1.20 ppb
    No federal limits exceeded on record
    A
  • Macomb
    Not detected
    No federal limits exceeded on record
    A
  • Shelby charter
    Not detected
    No federal limits exceeded on record
    A
⚠ Needs Attention
  • Roseville
    8.68 ppb
    Lead at 8.68 ppb, above a third of the action level
    A
  • Mount Clemens
    1.60 ppb
    2 health-based violations since 2015
    A
  • New Baltimore
    Not detected
    1 health-based violation since 2015
    A
  • Lenox
    Not detected
    1 health-based violation since 2015
    A
  • Armada
    2.00 ppb
    1 health-based violation since 2015
    B
County Lead Level — Median 1.7 ppb
Based on most recent 90th percentile lead tests across all reporting systems
0 ppb5 ppb10 ppb15 ppb
County median: 1.7 ppb — 11.3% of the federal action level
Systems by Lead Level
Under 5 ppb
8
5 – 10 ppb
1
No Data
15

All Cities in Macomb County

Warren 2.70 ppb A
Sterling Heights Not detected A
Clinton charter 1.20 ppb A
Macomb Not detected A
Shelby charter Not detected A
St. Clair Shores 1.10 ppb A
Roseville 8.68 ppb A
Chesterfield Not detected A
Eastpointe Not detected A
Washington charter Not detected A
Harrison charter 1.00 ppb B
Fraser Not detected A
Mount Clemens 1.60 ppb A
New Baltimore Not detected A
Lenox Not detected A
Richmond Not detected A
Bruce Not detected A
Romeo Not detected A
Utica 1.70 ppb B
Center Line 2.70 ppb A
Armada 2.00 ppb B
Memphis Not reported B
Ray Not detected A
Richmond Not detected A
Showing 24 cities
No active violations Active violations

About Macomb County Drinking Water

Macomb County is served by 20 water systems covering 24 communities. No community here has an open violation on record.

Of the communities reporting lead results, 9 recorded a detection, with a median of 1.70 ppb — 11% of the federal action level. 14 reported none detected, which means below the laboratory limit rather than an absence of lead.

No community here has PFAS above the federal limit on record. State inspectors recorded no significant deficiencies.

Frequently Asked Questions

Is Macomb County tap water safe to drink?▼
No community in Macomb County has an open violation on record. No community has PFAS above the federal limit on record.
What is the lead level in Macomb County?▼
Among communities with a detection the median is 1.70 ppb, 11% of the 15 ppb action level. 14 reported none detected and 1 reported no result.
How many water systems serve Macomb County?▼
20 community water systems serve 24 communities here.
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