Water Quality in Fergus Falls, MN (56538)

EPA violation data for public water systems serving ZIP code 56538.

Total Violations

Health-Based

Monitoring / Reporting

Resolved

What does this mean?

67 of 67 violations have been resolved. 58 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 9 are monitoring or reporting violations (missed testing deadlines or late paperwork — not necessarily a water quality issue). Not all violations mean your water is unsafe. The EPA requires reporting even for minor administrative issues.

Water systems: 4 Population served: 273

Violations Detail (67 total)

Contaminant	Category	MCL Limit	Measured	Date	Status	Health Effects
Arsenic	Health-Based	N/A	0.00825	Mar 31, 2025	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.00825	Mar 31, 2025	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.00825	Mar 31, 2025	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.00825	Mar 31, 2025	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.00825	Mar 31, 2025	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.00825	Mar 31, 2025	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.00825	Dec 31, 2024	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.00825	Dec 31, 2024	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.00825	Dec 31, 2024	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.00825	Dec 31, 2024	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.00825	Dec 31, 2024	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.00825	Dec 31, 2024	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.00825	Dec 31, 2024	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.0085	Sep 30, 2024	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.0085	Sep 30, 2024	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.0085	Sep 30, 2024	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.0085	Sep 30, 2024	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.0085	Sep 30, 2024	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.0085	Sep 30, 2024	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.00825	Jun 30, 2024	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.00825	Jun 30, 2024	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.00825	Jun 30, 2024	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.00825	Jun 30, 2024	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.00825	Jun 30, 2024	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.00825	Jun 30, 2024	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.006	Mar 31, 2024	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.006	Mar 31, 2024	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.006	Mar 31, 2024	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.006	Mar 31, 2024	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.006	Mar 31, 2024	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.006	Mar 31, 2024	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.0085	Dec 31, 2023	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.0085	Dec 31, 2023	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.0085	Dec 31, 2023	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.0085	Dec 31, 2023	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.0085	Dec 31, 2023	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.0085	Dec 31, 2023	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.005	Sep 30, 2023	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.005	Sep 30, 2023	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.005	Sep 30, 2023	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.005	Sep 30, 2023	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.005	Sep 30, 2023	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.0085	Jun 30, 2023	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.0085	Jun 30, 2023	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.0085	Jun 30, 2023	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.0085	Jun 30, 2023	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.0085	Jun 30, 2023	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.0085	Jun 30, 2023	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.0103	Mar 31, 2023	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.0103	Mar 31, 2023	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.0103	Mar 31, 2023	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.0103	Mar 31, 2023	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.0103	Mar 31, 2023	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.0108	Dec 31, 2022	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.0108	Dec 31, 2022	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.0108	Dec 31, 2022	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.0108	Dec 31, 2022	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.0108	Dec 31, 2022	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A

Violation Timeline

2025(6)

Arsenic

Mar 31Resolved

Arsenic

Mar 31Resolved

Arsenic

Mar 31Resolved

Arsenic

Mar 31Resolved

Arsenic

Mar 31Resolved

Arsenic

Mar 31Resolved

2024(25)

Arsenic

Dec 31Resolved

Arsenic

Dec 31Resolved

Arsenic

Dec 31Resolved

Arsenic

Dec 31Resolved

Arsenic

Dec 31Resolved

Arsenic

Dec 31Resolved

Arsenic

Dec 31Resolved

Arsenic

Sep 30Resolved

Arsenic

Sep 30Resolved

Arsenic

Sep 30Resolved

Arsenic

Sep 30Resolved

Arsenic

Sep 30Resolved

Arsenic

Sep 30Resolved

Arsenic

Jun 30Resolved

Arsenic

Jun 30Resolved

Arsenic

Jun 30Resolved

Arsenic

Jun 30Resolved

Arsenic

Jun 30Resolved

Arsenic

Jun 30Resolved

Arsenic

Mar 31Resolved

Arsenic

Mar 31Resolved

Arsenic

Mar 31Resolved

Arsenic

Mar 31Resolved

Arsenic

Mar 31Resolved

Arsenic

Mar 31Resolved

How Does This Compare?

Fergus Falls (56538) has 67 recorded violations, including 58 health-based. All violations have been resolved, which is a positive sign for current water quality. Consider testing your tap water independently for added peace of mind.

Recommended Water Filters

Based on the contaminants detected in your area, these filter types may help improve your water quality.

Reverse Osmosis System

Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.

Targets:Lead, Copper, Arsenic, Mercury, Cadmium

Look for:NSF/ANSI 58 certified

NSF Certified Products → EPA Safe Drinking Water Guide →

Activated Carbon Filter

Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.

Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor

Look for:NSF/ANSI 42 & 53 certified

NSF Certified Products → EPA Safe Drinking Water Guide →

Always look for filters certified by NSF International for the specific contaminants you want to remove.

Water Quality in Fergus Falls, MN (56538)

What does this mean?

Violations Detail (67 total)

Violation Timeline

2025(6)

2024(25)

2023(22)

2022(5)

2021(9)

How Does This Compare?

Recommended Water Filters

Reverse Osmosis System

Activated Carbon Filter

Nearby ZIP Codes

Check Another ZIP Code