Tapcensus

Water quality in Cottage Grove, Minnesota

Cottage Grove is in Washington County. 195 active public water systems serve the county; 21 had an EPA violation in the past three years.

Most likely your provider

Cottage Grove MN1820004 · Community water system · Ground water
Serves 42,760 people Rules violated, past 3 years 0 Last sanitary survey Feb 24, 2026 Distance 1.2 mi

Your location is within the outer bounds of this system's EPA service area.

Other community water systems in Washington County

28 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Eagle's Watch Development
140 0 3.6 mi
Saint Paul Park
5,427 1 4.1 mi
Newport
4,000 0 5.8 mi
Woodbury
82,643 1 7.0 mi
Cimarron Park
2,400 0 10.3 mi
Lakeland Municipal Water
3,500 0 11.4 mi
Lake Elmo
10,978 1 12.0 mi
Oakdale
30,144 0 12.3 mi
Bay Lake Reserve Development
80 0 13.2 mi
Bayport
2,700 0 15.0 mi
Oak Park Heights
4,776 0 15.8 mi
Indian Hills Development
156 0 15.9 mi
MN Correctional Facility Stillwater
781 0 16.0 mi
Cedar Terrace Mobile Home Park
25 1 16.7 mi
Willernie
525 1 16.8 mi
Mahtomedi
8,818 0 16.9 mi
Stillwater
19,462 1 17.2 mi
Birchwood
864 0 17.3 mi
Hugo
12,047 0 24.1 mi
Hugo Estates
300 0 24.8 mi
Jackson Meadow
95 0 26.9 mi
Marine Stugas Townhomes
28 1 28.2 mi
Wyldewood Acres
70 1 30.7 mi
Oakhill Cottages
65 1 30.8 mi
Hilltop Water Company
50 1 30.9 mi
All 29 community water systems in Washington County
Non-community systems in Washington County (166: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Christ the Lord Lutheran Church
25 0 0
Cottage Grove Ravine Regional Park
25 0 0
Hope Glen Farm LLC
200 0 0
Lighthouse Baptist Church
140 0 0
3m Cottage Grove
740 0 0
River Oaks Municipal Golf Course
200 0 0
The Harbor Church
175 0 0
New Life Evangelical Church
225 0 0
The Madison
250 0 0
Cottage Grove United Church of Christ
380 0 0
Lamar Baseball Fields
50 0 0
Bailey Nursery-Coolers
60 0 0
Bailey Nursery (production Building)
25 0 0
Erickson Marine
25 1 1
Camp Galilee
400 0 0
Little Beginnings Learning Center
102 0 0
Ace Trailer Sales
25 0 0
Midwest Machinery Co.
25 0 0
Kunes Valley Gmc, Inc.
50 1 0
Holiday Stationstore No. 484
25 0 0
Woodbury Church of Christ
100 0 0
Denmark Township Hall & Park
25 0 0
Willie's Restaurant
100 0 0
Afton Apple Orchard
100 0 0
Kings Cove Marina LLC
25 0 0
Five Oaks Community Church
25 0 0
Andy's Bark Park
25 0 0
Bailey Nurseries, Inc., Container East
110 0 0
St. Croix Bluffs Regional Park
25 0 0
St. Mary's Episcopal Church
100 0 0
Carpenter Nature Center
25 1 1
Bailey Nurseries, Inc. Main Office
70 0 0
Bailey Nurseries Behlen Building
25 0 0
Afton Alps
350 0 0
Point Douglas Park
25 0 0
Afton State Park
25 0 0
Afton Town Square Park
25 0 0
Selma's Ice Cream Parlour
250 0 0
Historic Afton House Inn
25 0 0
Historic Afton House Inn Annex
25 0 0
Memorial Lutheran Church
200 0 0
Windmill Marina
25 0 0
Afton City Hall
25 0 0
Afton Marina and Yacht Club
25 0 0
St. Peter Lutheran Church/parish Hall
25 0 0
Eastern Twin Cities Islamic Center
200 0 0
Savatree, LLC
25 0 0
Belwin Conservancy
74 0 0
Pioneer Tank Lines, Inc.
25 0 0
B.j. Transport, Inc., Dba Driver Driven
25 0 0
All non-community systems
About this data

Water systems are matched to Washington County, nearest to Cottage Grove first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system.

Town locations and ZIP code areas come from U.S. Census Bureau 2020 files.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Minnesota records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.