States › Michigan › Genesee County

Genesee County, MI Water Quality

Water quality data for 18 public water systems serving Genesee County, Michigan — based on EPA SDWIS enforcement records, lead testing results, and health-based violation history.

📅 2026 Report 🔄 Data updated 2026 Q2 📍 18 water systems · 29 cities
✅
Excellent — All Systems Performing Well

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

A

Genesee County Earns a A

Genesee County: 29 communities across 18 water systems. 89.7% have no open violations.

  • Median lead where detected: 3.00 ppb
  • 9 communities with a lead detection, 19 reporting none detected
  • 0 communities with PFAS above the federal limit
  • 1 with significant inspection deficiencies
  • 89.7% of communities have no open violations
3 ppb
Median Lead Level
County-wide, 90th percentile
18
Water Systems
Active CWS & NTNCWS
89%
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
  • Fenton
    1.00 ppb
    No federal limits exceeded on record
    A
  • Fenton charter
    1.00 ppb
    No federal limits exceeded on record
    A
  • Beecher
    3.00 ppb
    No federal limits exceeded on record
    A
  • Mount Morris
    3.00 ppb
    No federal limits exceeded on record
    A
  • Flushing
    Not detected
    No federal limits exceeded on record
    A
⚠ Needs Attention
  • Flint
    6.00 ppb
    2 significant inspection deficiencies
    C
  • Montrose
    Not detected
    1 violation currently open
    C
  • Argentine
    3.00 ppb
    1 violation currently open
    C
  • Montrose charter
    Not detected
    1 violation currently open
    C
  • Swartz Creek
    Not detected
    3 health-based violations since 2015
    B
County Lead Level — Median 3 ppb
Based on most recent 90th percentile lead tests across all reporting systems
0 ppb5 ppb10 ppb15 ppb
County median: 3 ppb — 20% of the federal action level
Systems by Lead Level
Under 5 ppb
8
5 – 10 ppb
1
No Data
20

All Cities in Genesee County

Flint 6.00 ppb C
Grand Blanc charter Not detected A
Burton Not detected A
Flint charter Not detected A
Fenton 1.00 ppb A
Davison Not detected A
Fenton charter 1.00 ppb A
Beecher 3.00 ppb A
Mount Morris 3.00 ppb A
Flushing Not detected A
Genesee charter Not detected A
Grand Blanc 4.00 ppb A
Swartz Creek Not detected B
Davison Not detected A
Flushing charter Not detected A
Linden Not detected A
Mount Morris 4.00 ppb A
Clio Not detected B
Mundy Not detected A
Montrose Not detected C
Vienna charter Not detected B
Atlas Not detected B
Gaines Not detected B
Argentine 3.00 ppb C
Thetford 1.00 ppb B
Forest Not reported B
Clayton charter Not detected A
Montrose charter Not detected C
Richfield Not detected A
Showing 29 cities
No active violations Active violations

About Genesee County Drinking Water

Genesee County is served by 18 water systems covering 29 communities. 90% have no open violations.

Of the communities reporting lead results, 9 recorded a detection, with a median of 3.00 ppb — 20% of the federal action level. 19 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 significant deficiencies at 1 of them.

Frequently Asked Questions

Is Genesee County tap water safe to drink?▼
90% of communities have no open violation. No community has PFAS above the federal limit on record.
What is the lead level in Genesee County?▼
Among communities with a detection the median is 3.00 ppb, 20% of the 15 ppb action level. 19 reported none detected and 1 reported no result.
How many water systems serve Genesee County?▼
18 community water systems serve 29 communities here.
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