Eau Claire County, Wisconsin — public water systems
At a glance
111 active public water systems are filed under Eau Claire County, Wisconsin in EPA's SDWIS records, together reporting 92,606 people served. The largest is Eau Claire Waterworks, which reports serving 70,587 people. 16 are community water systems serving people where they live; the other 95 are non-community systems, such as schools, workplaces, campgrounds and gas stations with their own supply.
Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.
Active systems
111
Population served
92.6K
Community systems
16
Groundwater share
100%
How does Eau Claire County compare with other Wisconsin counties?
Eau Claire County has the 43rd-most active public water systems among the 90 counties listed for active Wisconsin systems in EPA records; among the 74 with 3 or more systems, the median has 140. Its systems report 92,606 people served in total, the 15th-largest county figure in the state and 1.8% of the statewide total. The average system here reports serving 834 people, about 78% above the Wisconsin average of 469. Population figures are what each system reports; people served by more than one system, such as a wholesaler and the town that buys from it, are counted by each.
Where does Eau Claire County's drinking water come from?
By primary water source, Eau Claire County's active systems draw on groundwater (111, 100%). Overall, all rely mainly on groundwater (including purchased groundwater) and none on surface water, compared with 99% and 0.6% across Wisconsin. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Eau Claire Waterworks, draws primarily on groundwater.
What kinds of water systems operate in Eau Claire County?
Eau Claire County's active systems break down as 16 community systems (14%), 16 non-transient non-community systems (14%) and 79 transient non-community systems (71%). A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. EPA lists their owner types as private (81%), local government (17%) and state government (1.8%).
The 50 largest water systems in Eau Claire County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Eau Claire Waterworks | Eau Claire | 70,587 | Community | Groundwater |
| 2 | Altoona Waterworks | Eau Claire | 9,627 | Community | Groundwater |
| 3 | Augusta Waterworks | Eau Claire | 1,450 | Community | Groundwater |
| 4 | Fall Creek Waterworks | Eau Claire | 1,269 | Community | Groundwater |
| 5 | Hillcrest Estates MHP | Eau Claire | 850 | Community | Groundwater |
| 6 | Menards Old Mill Center | Eau Claire | 730 | Non-transient non-community | Groundwater |
| 7 | Ferguson Orchard-Eau Claire | Eau Claire | 610 | Transient non-community | Groundwater |
| 8 | Haven Christian Church Inc., the | Eau Claire | 457 | Transient non-community | Groundwater |
| 9 | Fairchild Waterworks | Eau Claire | 451 | Community | Groundwater |
| 10 | Villa Diann MHP | Eau Claire | 420 | Community | Groundwater |
| 11 | Pine Edge MHP | Eau Claire | 300 | Community | Groundwater |
| 12 | Crestview Academy Addition | Eau Claire | 203 | Non-transient non-community | Groundwater |
| 13 | Mcdonalds Restaurant | Eau Claire | 200 | Transient non-community | Groundwater |
| 14 | Menards Distribution Center Office | Eau Claire | 200 | Non-transient non-community | Groundwater |
| 15 | Ec Co Altoona Boat Landing | Eau Claire | 200 | Transient non-community | Groundwater |
| 16 | Ec Co Altoona Beach | Eau Claire | 200 | Transient non-community | Groundwater |
| 17 | Priory the | Eau Claire | 185 | Community | Groundwater |
| 18 | Northstar Middle School Athletic | Eau Claire | 150 | Transient non-community | Groundwater |
| 19 | Cozy MHP LLC Front | Eau Claire | 111 | Community | Groundwater |
| 20 | Ec Co Harstad Park Cmpgd | Eau Claire | 100 | Transient non-community | Groundwater |
| 21 | Mikes Buckhorn Bar | Eau Claire | 100 | Transient non-community | Groundwater |
| 22 | Ec Co Coon Fork Lk Loop C Shower Bldg | Eau Claire | 100 | Transient non-community | Groundwater |
| 23 | Ec Co Coon Fork Lk Cmpgd Loop A | Eau Claire | 100 | Transient non-community | Groundwater |
| 24 | Menards Dist Center North | Eau Claire | 100 | Non-transient non-community | Groundwater |
| 25 | Foster Bar | Eau Claire | 100 | Transient non-community | Groundwater |
| 26 | Mega Holiday / Burger King | Eau Claire | 100 | Transient non-community | Groundwater |
| 27 | Equity Livestock Sales | Eau Claire | 100 | Transient non-community | Groundwater |
| 28 | Countryside Estates Mhc | Eau Claire | 96 | Community | Groundwater |
| 29 | W R R Environmental Services Co Inc. | Eau Claire | 95 | Non-transient non-community | Groundwater |
| 30 | Loyal Order of Moose Lodge 1408 | Eau Claire | 90 | Transient non-community | Groundwater |
| 31 | Anthony Acres School | Eau Claire | 85 | Non-transient non-community | Groundwater |
| 32 | Brackett Bar | Eau Claire | 80 | Transient non-community | Groundwater |
| 33 | Eau Claire Coop Oil Co | Eau Claire | 80 | Non-transient non-community | Groundwater |
| 34 | From the Roots | Eau Claire | 79 | Non-transient non-community | Groundwater |
| 35 | Brown Hut Tavern | Eau Claire | 75 | Transient non-community | Groundwater |
| 36 | Harvest Moon Pub & Eatery | Eau Claire | 75 | Transient non-community | Groundwater |
| 37 | Welcome Matt the | Eau Claire | 75 | Transient non-community | Groundwater |
| 38 | Bonnie Vale Park 1 | Eau Claire | 70 | Community | Groundwater |
| 39 | Allstate Peterbilt Group | Eau Claire | 65 | Non-transient non-community | Groundwater |
| 40 | Chippewa Valley Airport Service | Eau Claire | 65 | Transient non-community | Groundwater |
| 41 | Sandstone Building | Eau Claire | 64 | Transient non-community | Groundwater |
| 42 | Berghs Mobile Home Park | Eau Claire | 60 | Community | Groundwater |
| 43 | Fellowship Alliance Church | Eau Claire | 60 | Transient non-community | Groundwater |
| 44 | Westgate Trap House | Eau Claire | 60 | Transient non-community | Groundwater |
| 45 | Dicks on 12 | Eau Claire | 60 | Transient non-community | Groundwater |
| 46 | Down To Earth - Picture This | Eau Claire | 56 | Transient non-community | Groundwater |
| 47 | Elk Lake Tavern | Eau Claire | 55 | Transient non-community | Groundwater |
| 48 | Precision Pipeline | Eau Claire | 55 | Non-transient non-community | Groundwater |
| 49 | Bonnie Vale Park 2 | Eau Claire | 51 | Community | Groundwater |
| 50 | Four Mile Inn | Eau Claire | 50 | Transient non-community | Groundwater |
All other water systems in Eau Claire County (61)
The remaining active systems filed under Eau Claire County, largest first, with the population each reports serving.
- Westgate Sportsmans Club50
- Eau Claire Rod & Gun Club50
- Pops Mart & Fuel50
- Zion Lutheran Church50
- St Johns Lutheran Church50
- Boondocks Bar and Grill50
- Westridge Church50
- Hickory Hills Golf Course50
- Americinn50
- Menards General Office50
- Days Inn West50
- Green Acres Mobile Homes48
- Eau Claire Energy Cooperative46
- Westgate Motel44
- Ec Co Coon Fork Lk Loop B Shower Bldg40
- Weavers Country Store40
- Vojtiks Stockyard38
- Augusta Mennonite Church & School38
- Roland Machinery Company36
- Premier Truck Group of Eau Claire35
- Le Meres Landing & Cmpgd35
- Zion Lutheran Church35
- Cozy MHP LLC Back35
- Pleasant Valley Christian Center35
- Prince of Peace Covenant Church30
- Black Creek Cmpgd East30
- Black Creek Campground30
- Drammen Lutheran Church30
- Js Circle C 228
- Badger Truck Refrigeration27
- Bethlehem Lutheran Church25
- Fox Run Tavern25
- Tower Ridge Multi-Use Facility25
- Halmar Lakeside25
- Keller Memorial Pk25
- Augusta Park25
- Wi Dot Wayside 8525
- Woodland25
- Fosters Fireside25
- Cleghorn Keg25
- St Lukes Lutheran Church25
- St Bridgets Church & Hall25
- Babes in Toyland Childcare25
- Seymour Town Hall Park25
- Wildlands School Beaver Creek Reserve25
- Black Creek Lodge25
- Wise Nature Center25
- Ascension Evangelical Lutheran Church25
- St Raymonds De Penafort25
- Fall Creek High School Athletic Field25
- Seven Mile Creek Landfill25
- Seymour Ball Club Park25
- Culvers25
- Osseo Cenex25
- Little Creek Family Campground25
- Kavi Coffee - Trillium Business Park25
- Ec Co Coon Fork Lk Loop D & Dump Station25
- Pleasant Valley Lutheran Church25
- Super 825
- Sandy Hill Cmpgd25
- Sconnies25
Eau Claire County water systems: frequently asked questions
How many public water systems are in Eau Claire County, Wisconsin?
EPA's SDWIS records file 111 active public water systems under Eau Claire County, Wisconsin: 16 community systems (14%), 16 non-transient non-community systems (14%) and 79 transient non-community systems (71%).
Who supplies drinking water in Eau Claire County, WI?
The largest community water systems filed under Eau Claire County are Eau Claire Waterworks (70,587 people served), Altoona Waterworks (9,627 people served) and Augusta Waterworks (1,450 people served). Which system serves a particular address depends on its service area, which EPA's SDWIS records do not include; a water bill or the local utility can confirm it.
Does Eau Claire County's drinking water come from groundwater or surface water?
Of the 111 active public water systems in Eau Claire County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Eau Claire Waterworks, uses groundwater.
Where can I find a water quality report for Eau Claire County?
Each community water system must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1, covering the previous calendar year. 16 community systems are filed under Eau Claire County, so the report to look for is the one from the system that supplies your address.
How can I check violations for a water system in Eau Claire County?
Open the system's profile from the list on this page. Each profile shows the most recent Safe Drinking Water Act violations in EPA's records, with plain-English labels and whether each one is resolved. For current compliance status, EPA ECHO is the primary source.
More Wisconsin water systems
- All Wisconsin public water systems· 11,056 active
- Washburn County· 128 systems
- La Crosse County· 122 systems
- Langlade County· 117 systems
- Shawano County· 116 systems
- Outagamie County· 107 systems
- Jackson County· 106 systems
- How to find out who supplies your drinking water
- How to find and read your annual water quality report
About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Public water systems in Eau Claire County, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/eau-claire (data as of October 1, 2026).