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Fillmore County, MN Water Quality

Water quality data for 14 public water systems serving Fillmore County, Minnesota — based on EPA SDWIS enforcement records, lead testing results, and health-based violation history.

📅 2026 Report 🔄 Data updated 2026 Q2 📍 14 water systems · 27 cities
✅
Excellent — All Systems Performing Well

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

A

Fillmore County Earns a A

Fillmore County: 27 communities across 14 water systems. 100.0% have no open violations.

  • Median lead where detected: 5.00 ppb
  • 17 communities with a lead detection, 10 reporting none detected
  • 0 communities with PFAS above the federal limit
  • 2 with significant inspection deficiencies
  • 100.0% of communities have no open violations
5 ppb
Median Lead Level
County-wide, 90th percentile
14
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
  • Preston
    2.00 ppb
    No federal limits exceeded on record
    B
  • Carrolton
    Not detected
    No federal limits exceeded on record
    B
  • Fountain
    2.00 ppb
    No federal limits exceeded on record
    B
  • Carimona
    2.00 ppb
    No federal limits exceeded on record
    B
  • Spring Valley
    Not detected
    No federal limits exceeded on record
    B
⚠ Needs Attention
  • York
    Not detected
    1 significant inspection deficiency
    B
  • Bristol
    Not detected
    1 significant inspection deficiency
    B
  • Bloomfield
    9.00 ppb
    Lead at 9.00 ppb, above a third of the action level
    B
  • Chatfield
    10.00 ppb
    Lead at 10.00 ppb, above a third of the action level
    B
  • Rushford
    10.00 ppb
    Lead at 10.00 ppb, above a third of the action level
    B
County Lead Level — Median 5 ppb
Based on most recent 90th percentile lead tests across all reporting systems
0 ppb5 ppb10 ppb15 ppb
County median: 5 ppb — 33.3% of the federal action level
Systems by Lead Level
Under 5 ppb
8
5 – 10 ppb
6
10 – 15 ppb
3
No Data
10

All Cities in Fillmore County

Chatfield 10.00 ppb B
Spring Valley Not detected B
Rushford 10.00 ppb B
Preston 2.00 ppb B
Harmony 5.00 ppb B
Mabel 1.00 ppb A
Lanesboro Not detected B
Wykoff Not detected B
Fountain 2.00 ppb B
Canton 6.00 ppb B
Rushford Village Not detected B
Ostrander 9.00 ppb B
Peterson 2.00 ppb B
Newburg 1.00 ppb A
York Not detected B
Fillmore Not detected B
Harmony 5.00 ppb B
Canton 6.00 ppb B
Holt Not detected B
Spring Valley Not detected B
Bristol Not detected B
Chatfield 10.00 ppb B
Bloomfield 9.00 ppb B
Carimona 2.00 ppb B
Carrolton Not detected B
Preston 2.00 ppb B
Fountain 2.00 ppb B
Showing 27 cities
No active violations Active violations

About Fillmore County Drinking Water

Fillmore County is served by 14 water systems covering 27 communities. No community here has an open violation on record.

Of the communities reporting lead results, 17 recorded a detection, with a median of 5.00 ppb — 33% of the federal action level. 10 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 2 of them.

Frequently Asked Questions

Is Fillmore County tap water safe to drink?▼
No community in Fillmore County has an open violation on record. No community has PFAS above the federal limit on record.
What is the lead level in Fillmore County?▼
Among communities with a detection the median is 5.00 ppb, 33% of the 15 ppb action level. 10 reported none detected and 0 reported no result.
How many water systems serve Fillmore County?▼
14 community water systems serve 27 communities here.
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