PlainWater
Counties → Minnesota

Polk County, Minnesota

Water Systems
66
Population Served
24,497
Total Violations
501
280 health-based
PFAS Detected
2
of 2 tested

Violation Analysis

36.4%
Systems with Violations
7.6
Avg Violations per System
55.9%
Health-Based Violations

Water Source Types

GW
49 systems (74%)
SW
1 system (2%)

PFAS Contamination

2
Systems Tested
2
PFAS Detected
100.0%
Detection Rate

PFAS (per- and polyfluoroalkyl substances) are persistent chemicals found in drinking water. The EPA has set enforceable limits for several PFAS compounds under UCMR5 monitoring.

Compliance Snapshot

Polk Minnesota water systems by violation status, EPA SDWIS records.

No violations on record (32) One or more violations (18)

Violation history is cumulative, many flagged systems have already returned to compliance. Detail pages show per-system context.

Water Systems

System Name Population Violations PFAS
East Grand Forks 9,206 13 Detected
Crookston 7,272 2 Clean
Fosston 1,385 20 -
Fertile 789 6 -
McIntosh 584 12 -
Oak Lake Wayside Rest Area MNDOT 534 7 -
Fisher 401 13 -
Erskine 384 17 -
St. Lawrence Catholic Church 350 0 -
Bethel Assembly Church 300 7 -
Fishers Landing Wayside Rest MNDOT 249 7 -
Climax 223 208 -
Union Lake Sarah Campground 200 0 -
Winger 181 102 -
Lakeview Resort 150 7 -
Maple Lake Lutheran Church 120 0 -
Lund Lutheran Church 100 0 -
Golden Pond Campground 100 0 -
Dollar General Store 18759 - Fertile 100 0 -
Maple Lake Resort Ranch 98 0 -
Beltrami 85 14 -
Nielsville 76 16 -
Polk County Park 75 0 -
Rhombus House of Pizza 75 0 -
Church of St. Nikola 60 0 -
Maple Lake Resort 59 0 -
St. Peter's Church of Gentilly 50 0 -
St. Mary's Catholic Church 50 7 -
Mentor Municipal Bar 50 0 -
Oak Cove Resort 50 0 -
The Clinic Bar and Grill 50 0 -
Cross Lake Campground 50 0 -
Church of Old Believers 45 0 -
Cornerstone Farm Service 45 0 -
Fosston Golf Club Association 40 7 -
Mentor Cafe 40 0 -
Christian Motors, Inc. 40 0 -
Trinity Lutheran Church 40 0 -
Agassiz Environmental Learning Center 40 0 -
Mentor Dairy Queen 36 0 -
Summer Sands Lake Club 35 0 -
One-N-Only Store 35 0 -
Vernes Lutheran Church 35 0 -
Bethel Bible Church 30 0 -
Little Norway Lutheran Church 30 0 -
Rockin A 30 0 -
Tilberg Park - Cross Lake 30 0 -
Farmer's Union Park 30 3 -
Old Trails End 30 0 -
Snowsled Inn 30 0 -

Other Counties in Minnesota

Hennepin County
202 systems · 1,273,140 served · 1,534 violations
Ramsey County
43 systems · 579,780 served · 369 violations
Dakota County
135 systems · 391,434 served · 1,282 violations
Anoka County
245 systems · 328,280 served · 2,022 violations
Washington County
195 systems · 259,368 served · 1,652 violations
St. Louis County
364 systems · 178,965 served · 3,967 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Polk County? ▼
Polk County has 501 total drinking water violations across 66 water systems, of which 280 are health-based violations. 36.4% of systems have at least one violation.
How many people get water from Polk County systems? ▼
Water systems in Polk County serve approximately 24,497 people through 66 public water systems.
Has PFAS been detected in Polk County water? ▼
Of 2 water systems tested for PFAS in Polk County, 2 had PFAS detected (100.0% detection rate).
What types of water sources supply Polk County? ▼
Water systems in Polk County use GW (49 systems), SW (1 systems) as their primary water sources.
Are health-based violations serious? ▼
Health-based violations indicate that drinking water exceeded Maximum Contaminant Levels (MCLs) set by the EPA or failed treatment technique requirements. 55.9% of Polk County's violations are health-based. Not all violations indicate immediate health risk, but they require corrective action.
Data Sources & Methodology

Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). PFAS testing data from the UCMR5 monitoring program. SDWIS tracks all public water systems regulated under the Safe Drinking Water Act.

Violations are categorized as health-based (Maximum Contaminant Level exceedances, treatment technique failures) or monitoring/reporting violations. Not all violations indicate an immediate health risk.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This page draws directly on EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.