Tap Truth EPA drinking water records, in plain English

County drinking water records

Washington County, MN drinking water systems

29 community water systems serve Washington County, MN, reporting 240,481 people served in all. A system that also serves other counties counts all of its customers here.

None of them had a health-based violation in the last 10 years.

29 rely mainly on groundwater, counting water bought from other systems.

Their lead service line inventories list 439 lead lines, 1,095 galvanized lines that must be replaced and 8,390 lines of unknown material.

Community water systems
29
People served, sum of each system's own figure
240,481
Systems with a health-based violation, last 10 years
0
Systems with one unresolved
4
Lead service lines in inventories
439

Water systems serving Washington County

29 systems

People served is each system's own figure for its whole service area. Violation counts cover the last 10 years of EPA records.

System Serves People served Main source Health-based violations, 10 years Unresolved Lead lines
Woodbury Woodbury 82,643 Groundwater 0 0 0
Cottage Grove Cottage Grove 39,712 Groundwater 0 0 0
Oakdale Oakdale 28,674 Groundwater 0 0 26
Stillwater Stillwater 19,462 Groundwater 0 0 0
Hugo Hugo 12,047 Groundwater 0 0 0
Forest Lake Forest Lake 11,800 Groundwater 0 0 408
Lake Elmo Lake Elmo 10,978 Groundwater 0 0 0
Mahtomedi Mahtomedi 8,818 Groundwater 0 0 0
Saint Paul Park St. Paul Park 5,427 Groundwater 0 0 2
Oak Park Heights Oak Park Heights 4,776 Groundwater 0 0 0
Newport Newport 4,000 Groundwater 0 0 2
Lakeland Municipal Water Lakeland, Lake St. Croix Beach and 1 more 3,500 Groundwater 0 0 0
Bayport Bayport 2,700 Groundwater 0 0 1
Cimarron Park Lake Elmo 2,400 Groundwater 0 0 0
Birchwood Birchwood Village 864 Purchased groundwater 0 0 0
MN Correctional Facility - Stillwater Bayport 781 Groundwater 0 0 0
Willernie Willernie 525 Purchased groundwater 0 1 0
Woodlund Mobile Home Park Forest Lake 330 Groundwater 0 0 0
Hugo Estates Hugo 300 Groundwater 0 0 0
Indian Hills Development Grant 156 Groundwater 0 0 0
Eagle's Watch Development Outside cities and towns 140 Groundwater 0 0 0
Jackson Meadow Marine on St. Croix 95 Groundwater 0 0 0
Bay Lake Reserve Development Outside cities and towns 80 Groundwater 0 0 0
Wyldewood Acres Scandia 70 Groundwater 0 1 0
Oakhill Cottages Scandia 65 Groundwater 0 0 0
Hilltop Water Company Scandia 50 Groundwater 0 0 0
Scandia Water Company Scandia 35 Groundwater 0 0 0
Marine Stugas Townhomes Marine on St. Croix 28 Groundwater 0 1 0
Cedar Terrace Mobile Home Park Grant 25 Groundwater 0 2 0

Cities and towns in Washington County

20 places

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Counties come from the counties EPA lists each system serving, matched to 2024 Census counties; where EPA lists none, from the county coded in the system's ID, its service area map, or its mailing address. A county holding at least a fifth of a system's service area map is added when at least a fifth of that map lies in those counties. Towns are the ones EPA lists and the Census places such a map covers, always inside those counties. In New England, where EPA's town names a whole Town, it is not matched to the village of the same name. A system is not listed in a county holding less than a fifth of its map, or in a county or town its map reaches when the map lies mostly outside the counties EPA lists, so a page can leave out a system that serves part of the area. Methodology and limitations