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Delta County, MI Water Quality

Water quality data for 7 public water systems serving Delta County, Michigan — based on EPA SDWIS enforcement records, lead testing results, and health-based violation history.

📅 2026 Report 🔄 Data updated 2026 Q2 📍 7 water systems · 11 cities
✅
Excellent — All Systems Performing Well

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

A

Delta County Earns a A

Delta County: 11 communities across 7 water systems. 100.0% have no open violations.

  • Median lead where detected: 1.60 ppb
  • 6 communities with a lead detection, 4 reporting none detected
  • 3 communities with PFAS above the federal limit
  • 0 with significant inspection deficiencies
  • 100.0% of communities have no open violations
1.6 ppb
Median Lead Level
County-wide, 90th percentile
7
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
  • Escanaba
    2.00 ppb
    No federal limits exceeded on record
    A
  • Wells
    2.00 ppb
    No federal limits exceeded on record
    A
  • Masonville
    3.00 ppb
    No federal limits exceeded on record
    B
  • Garden
    0.70 ppb
    No federal limits exceeded on record
    B
  • Fairbanks
    0.70 ppb
    No federal limits exceeded on record
    B
⚠ Needs Attention
  • Escanaba
    Not detected
    PFAS above the limit at 1 of 1 sampling points
    C
  • Gladstone
    Not detected
    PFAS above the limit at 1 of 1 sampling points
    C
  • Brampton
    Not detected
    PFAS above the limit at 1 of 1 sampling points
    C
  • Nahma
    Not reported
    13 health-based violations since 2015
    B
  • Maple Ridge
    1.20 ppb
    Copper above the 1,300 ppb action level
    B
County Lead Level — Median 1.6 ppb
Based on most recent 90th percentile lead tests across all reporting systems
0 ppb5 ppb10 ppb15 ppb
County median: 1.6 ppb — 10.7% of the federal action level
Systems by Lead Level
Under 5 ppb
6
No Data
5

All Cities in Delta County

Escanaba 2.00 ppb A
Gladstone Not detected C
Wells 2.00 ppb A
Masonville 3.00 ppb B
Garden 0.70 ppb B
Fairbanks 0.70 ppb B
Brampton Not detected C
Maple Ridge 1.20 ppb B
Ford River Not detected B
Nahma Not reported B
Escanaba Not detected C
Showing 11 cities
No active violations Active violations

About Delta County Drinking Water

Delta County is served by 7 water systems covering 11 communities. No community here has an open violation on record.

Of the communities reporting lead results, 6 recorded a detection, with a median of 1.60 ppb — 11% of the federal action level. 4 reported none detected, which means below the laboratory limit rather than an absence of lead.

3 of 11 communities have PFAS above the limits EPA set in 2024, measured as a running annual average at each sampling point. State inspectors recorded no significant deficiencies.

Frequently Asked Questions

Is Delta County tap water safe to drink?▼
No community in Delta County has an open violation on record. 3 of 11 have PFAS above the federal limit, which is the main open concern.
What is the lead level in Delta County?▼
Among communities with a detection the median is 1.60 ppb, 11% of the 15 ppb action level. 4 reported none detected and 1 reported no result.
How many water systems serve Delta County?▼
7 community water systems serve 11 communities here.
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