Tap Truth EPA drinking water records, in plain English

County drinking water records

Lake County, MT drinking water systems

34 community water systems serve Lake County, MT, reporting 15,699 people served in all. A system that also serves other counties counts all of its customers here.

8 of them (24%) had at least one health-based violation in the last 10 years. 2 systems still have one unresolved.

32 rely mainly on groundwater and 2 on surface water, counting water bought from other systems.

33 systems filed a lead service line inventory listing 0 lead lines, 2 galvanized lines that must be replaced and 2,824 lines of unknown material.

3 more systems are placed in Lake County, MT by mailing address or by the county their records name because they have no service area map that lines up with their own records, so they are listed apart and not counted here.

Community water systems
34
People served, sum of each system's own figure
15,699
Systems with a health-based violation, last 10 years
8
Systems with one unresolved
2
Lead service lines in inventories
0

Water systems serving Lake County

34 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
City of Polson Polson 5,300 Groundwater 0 0 0
City of Ronan Ronan 2,483 Surface water 1 0 0
Pablo Lake County Water and Sewer Dist Pablo 2,175 Groundwater 2 0 0
Town of St Ignatius St. Ignatius and land outside it 700 Groundwater 1 0 0
Woods Bay Water and Sewer District Swan Lake 685 Groundwater 0 0 0
Consolidated Charlo Lake Co W and S Dist Charlo 450 Groundwater 0 0 0
Round Butte Water Company Ronan and land outside it 400 Groundwater 0 0 0
Jette Meadows Lake Co W and S Dist Polson and land outside it 375 Groundwater 0 0 0
St Ignatius (Mission) So.Side St. Ignatius and land outside it 356 Groundwater 0 0 0
Jette Lake Landowners Association Polson and land outside it 295 Groundwater 0 1 No inventory
Pache Water System Outside cities and towns 276 Groundwater 0 0 0
Ridgewood Estates Woods Bay 250 Surface water 0 0 0
Turtle Lake Water System Turtle Lake 225 Groundwater 1 0 0
Elmo Water System Elmo 220 Groundwater 0 0 0
Mission Meadows RV Campsite Park, Inc Ronan and land outside it 200 Groundwater 0 0 0
Arlee Arlee 124 Groundwater 1 0 0
Mission Mountain Lake Co W and S Dist Ronan and land outside it 118 Groundwater 0 0 0
Big Arm Water System Big Arm and Lindisfarne 116 Groundwater 1 0 0
Woodcock Water System Outside cities and towns 101 Groundwater 0 0 0
Paradise Pines Finley Point and Polson 95 Groundwater 0 1 0
Clearview Heights Water Assn Polson and land outside it 90 Groundwater 0 0 0
Mission Dam Water System Outside cities and towns 87 Groundwater 0 0 0
Mission Mountain View HOA Ronan and land outside it 80 Groundwater 1 0 0
Chief Martin Charlo Homesite Outside cities and towns 66 Groundwater 0 0 0
Shelter Bay Estates Rollins 56 Groundwater 0 0 0
Kootenai Woods Subdivision Outside cities and towns 53 Groundwater 0 0 0
Stone Ridge Water Company Polson and land outside it 50 Groundwater 0 0 0
Overlook Subdivision Kerr and Polson 49 Groundwater 1 0 0
Pinewood Shores WUA Kings Point and Polson 46 Groundwater 0 0 0
Pleasant View Water and Sewer District Polson and land outside it 45 Groundwater 0 0 0
Houle Villa Water System Finley Point 38 Groundwater 0 0 0
Clarice Paul Water System Outside cities and towns 35 Groundwater 0 0 0
Ponderilla Hills Lake County Water Sewer Polson and land outside it 35 Groundwater 0 0 0
Dayton Water System Dayton 25 Groundwater 0 0 0

Systems placed by mailing address or county record in Lake County

3 systems

EPA has no service area map for these systems. They are placed by mailing address or by the county their records name, and without a map they are not counted in the figures above.

System Serves People served Main source Health-based violations, 10 years Unresolved Lead lines
Christian Childrens Ranch County on record 65 Groundwater 0 0 0
CSKT Division of Fire Management Mailing address in Pablo 60 Groundwater 0 1 0
South Hills Water Users Association County on record 60 Groundwater 0 0 0

Cities and towns in Lake County

17 places

Back to Montana

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