PlainWater
Counties → Wisconsin

Door County, Wisconsin

Water Systems
454
Population Served
34,700
Total Violations
19,310
2,910 health-based
PFAS Detected
1
of 1 tested

Violation Analysis

94.1%
Systems with Violations
42.5
Avg Violations per System
15.1%
Health-Based Violations

Water Source Types

GW
50 systems (11%)

PFAS Contamination

1
Systems Tested
1
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

Door Wisconsin water systems by violation status, EPA SDWIS records.

No violations on record (1) One or more violations (49)

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
Sturgeon Bay Waterworks 9,700 12 Detected
Southern Door Sch Dist 1,350 8 -
Sister Bay Waterworks 1,000 9 -
Sevastopol High Sch 715 21 -
Gibraltar High School 628 101 -
Loft 308 3 -
Culvers Town & Country C Store 265 96 -
North Haven Pool Well 223 3 -
Wild Tomato 215 82 -
WI DNR Pen Concession 206 26 -
St Paul Cath Ch 206 6 -
Lautenbachs Orchard Country Winery & Market 204 36 -
Shepherd of the Bay Lutheran 203 33 -
WI DNR Pen Tennison Bay 202 1 -
WI DNR Pen 600 Site Well 202 27 -
WI DNR Pen 700 Site Well 202 17 -
Door Co Y M C a North 190 32 -
Doorway to Learning 170 17 -
Baileys Grove Cmpgd 152 39 -
Oaks The 135 283 -
Heritage Lake Resort 130 91 -
Peninsula Players 128 46 -
St Marys of the Lake Ch 127 25 -
WI DNR Pot Shower Bldg 125 19 -
Maplewood Sanitary Dist 1 122 45 -
Macready Artisan Bread Co 114 101 -
Anchorage Cove Condos East Parking 113 57 -
On Deck Clothing Co 110 12 -
Tranquil Timbers Camping Retreat/Store 110 78 -
P C Junction 110 184 -
WI DNR Pen Welckers Pt 107 15 -
Florian II Beachfront Inn 106 64 -
Blue Horse Beach Cafe 105 42 -
Julies Park Cafe 105 45 -
Summer Kitchen Restr 105 108 -
Waterbury Inn 105 37 -
Htr Door County 104 23 -
Zion Ev Lutheran Ch 104 66 -
Washington Island Red Barn Theater Park 102 8 -
St Paul Lutheran Ch Elca 102 13 -
Ephraim Yacht Harbor Dock 102 25 -
WI DNR Pen Weborg Pt 102 5 -
Ephraim Beach Park 102 13 -
Homestead Suites 102 9 -
Ephraim Yacht Harbor Condos 101 60 -
Rustic Timbers Office 100 95 -
Fresh Coast Motel-Deckhouse 100 0 -
Founders Square Pelletiers 100 64 -
WI DNR Pot Daisy Fld Winter Well 100 23 -
WI DNR Pot Boat Launch 100 12 -

Other Counties in Wisconsin

Milwaukee County
85 systems · 953,104 served · 2,602 violations
Dane County
301 systems · 517,785 served · 7,065 violations
Waukesha County
590 systems · 322,690 served · 24,998 violations
Brown County
149 systems · 246,872 served · 2,891 violations
Outagamie County
107 systems · 179,535 served · 1,999 violations
Racine County
195 systems · 179,476 served · 10,597 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Door County? ▼
Door County has 19,310 total drinking water violations across 454 water systems, of which 2,910 are health-based violations. 94.1% of systems have at least one violation.
How many people get water from Door County systems? ▼
Water systems in Door County serve approximately 34,700 people through 454 public water systems.
Has PFAS been detected in Door County water? ▼
Of 1 water systems tested for PFAS in Door County, 1 had PFAS detected (100.0% detection rate).
What types of water sources supply Door County? ▼
Water systems in Door County use GW (50 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. 15.1% of Door 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.