States › Michigan › Newaygo County

Newaygo County, MI Water Quality

Water quality data for 7 public water systems serving Newaygo 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 · 14 cities
✅
Excellent — All Systems Performing Well

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

A

Newaygo County Earns a A

Newaygo County: 14 communities across 7 water systems. 100.0% have no open violations.

  • Median lead where detected: 1.48 ppb
  • 9 communities with a lead detection, 0 reporting none detected
  • 3 communities with PFAS above the federal limit
  • 0 with significant inspection deficiencies
  • 100.0% of communities have no open violations
1.48 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
  • Wilcox
    Not reported
    No federal limits exceeded on record
    B
  • Ashland
    Not reported
    No federal limits exceeded on record
    B
  • Newaygo
    3.00 ppb
    No federal limits exceeded on record
    B
  • White Cloud
    Not reported
    No federal limits exceeded on record
    B
  • Grant
    Not reported
    No federal limits exceeded on record
    B
⚠ Needs Attention
  • Brooks
    48.90 ppb
    Lead above the 15 ppb action level
    C
  • Fremont
    1.00 ppb
    PFAS above the limit at 1 of 6 sampling points
    B
  • Sheridan charter
    1.00 ppb
    PFAS above the limit at 1 of 6 sampling points
    B
  • Dayton
    1.00 ppb
    PFAS above the limit at 1 of 6 sampling points
    B
  • Denver
    3.80 ppb
    1 health-based violation since 2015
    A
County Lead Level — Median 1.48 ppb
Based on most recent 90th percentile lead tests across all reporting systems
0 ppb5 ppb10 ppb15 ppb
County median: 1.48 ppb — 9.9% of the federal action level
Systems by Lead Level
Under 5 ppb
8
10 – 15 ppb
1
No Data
5

All Cities in Newaygo County

Fremont 1.00 ppb B
Newaygo 3.00 ppb B
White Cloud Not reported B
Grant Not reported B
Denver 3.80 ppb A
Brooks 48.90 ppb C
Sheridan charter 1.00 ppb B
Garfield 3.00 ppb B
Dayton 1.00 ppb B
Big Prairie 1.48 ppb B
Everett Not reported B
Croton 1.48 ppb B
Wilcox Not reported B
Ashland Not reported B
Showing 14 cities
No active violations Active violations

About Newaygo County Drinking Water

Newaygo County is served by 7 water systems covering 14 communities. No community here has an open violation on record.

Of the communities reporting lead results, 9 recorded a detection, with a median of 1.48 ppb — 10% of the federal action level. 0 reported none detected, which means below the laboratory limit rather than an absence of lead.

3 of 14 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 Newaygo County tap water safe to drink?▼
No community in Newaygo County has an open violation on record. 3 of 14 have PFAS above the federal limit, which is the main open concern.
What is the lead level in Newaygo County?▼
Among communities with a detection the median is 1.48 ppb, 10% of the 15 ppb action level. 0 reported none detected and 5 reported no result.
How many water systems serve Newaygo County?▼
7 community water systems serve 14 communities here.
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