Adams County, Wisconsin — public water systems
At a glance
202 active public water systems are filed under Adams County, Wisconsin in EPA's SDWIS records, together reporting 24,041 people served. The largest is Rome Water Utility, which reports serving 2,775 people. 11 are community water systems serving people where they live; the other 191 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
202
Population served
24K
Community systems
11
Groundwater share
100%
How does Adams County compare with other Wisconsin counties?
Adams County has the 15th-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 24,041 people served in total, the 43rd-largest county figure in the state and 0.5% of the statewide total. The average system here reports serving 119 people, well below 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 Adams County's drinking water come from?
By primary water source, Adams County's active systems draw on groundwater (201, 100%) and purchased groundwater (1, 0.5%). 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, Rome Water Utility, draws primarily on groundwater.
What kinds of water systems operate in Adams County?
Adams County's active systems break down as 11 community systems (5.4%), 4 non-transient non-community systems (2%) and 187 transient non-community systems (93%). 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 (91%), local government (6.4%), state government (1.5%) and federal government (1%).
The 50 largest water systems in Adams County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Rome Water Utility | Adams | 2,775 | Community | Groundwater |
| 2 | Adams Waterworks | Adams | 1,847 | Community | Groundwater |
| 3 | Federal Correctional Institution | Adams | 1,550 | Community | Groundwater |
| 4 | Friendship Waterworks | Adams | 781 | Community | Purchased groundwater |
| 5 | Emrick Lake Cmpgrnd Main Well | Adams | 750 | Transient non-community | Groundwater |
| 6 | Emrick Lake Cmpgrnd East Sites | Adams | 750 | Transient non-community | Groundwater |
| 7 | Emrick Lake Cmpgrnd Cabins | Adams | 750 | Transient non-community | Groundwater |
| 8 | Emrick Lake Cmpgrnd Handpump | Adams | 750 | Transient non-community | Groundwater |
| 9 | Emrick Lake Cmpgrnd Reserve Area | Adams | 750 | Transient non-community | Groundwater |
| 10 | Emrick Lake Cmpgrnd East Shower House | Adams | 750 | Transient non-community | Groundwater |
| 11 | Emrick Lake Cmpgrnd Office | Adams | 750 | Transient non-community | Groundwater |
| 12 | Sand Valley Golf Resort Hole 11 | Adams | 500 | Transient non-community | Groundwater |
| 13 | Petenwell Co Park 10-West Pump House | Adams | 410 | Transient non-community | Groundwater |
| 14 | Petenwell Co Park 9 | Adams | 405 | Transient non-community | Groundwater |
| 15 | Sand Valley Golf Resort Lido Pro Shelter & Bath | Adams | 400 | Transient non-community | Groundwater |
| 16 | Sand Valley Golf Resort Mammoth Dunes Hole 15 | Adams | 400 | Transient non-community | Groundwater |
| 17 | Petenwell Co Park Atv Campground | Adams | 400 | Transient non-community | Groundwater |
| 18 | Sand Valley Golf Resort Mammoth Dunes Turnstand | Adams | 400 | Transient non-community | Groundwater |
| 19 | Sand Valley Golf Resort Lido Pro Shop | Adams | 400 | Transient non-community | Groundwater |
| 20 | Castle Rock Co Park 2-Shop | Adams | 210 | Transient non-community | Groundwater |
| 21 | Holiday Shores Cmpgd 6 East | Adams | 205 | Transient non-community | Groundwater |
| 22 | Petenwell Co Park 11 | Adams | 205 | Transient non-community | Groundwater |
| 23 | Westwind Estates | Adams | 160 | Community | Groundwater |
| 24 | Four Seasons Mini Mart | Adams | 154 | Transient non-community | Groundwater |
| 25 | Kamado Flo at the Swan Barn Door | Adams | 153 | Transient non-community | Groundwater |
| 26 | Wagon Wheel Campground | Adams | 152 | Transient non-community | Groundwater |
| 27 | Stuffs Restaurant | Adams | 150 | Transient non-community | Groundwater |
| 28 | Blue Lake Community LLC | Adams | 102 | Transient non-community | Groundwater |
| 29 | Dollar General #24419 | Adams | 100 | Transient non-community | Groundwater |
| 30 | Boomers Pub Inc. | Adams | 100 | Transient non-community | Groundwater |
| 31 | Dellwood Pavilion | Adams | 100 | Transient non-community | Groundwater |
| 32 | Cold Water Canyon Shore Landing | Adams | 100 | Transient non-community | Groundwater |
| 33 | Ponderosa Pines - Campground 2 | Adams | 90 | Transient non-community | Groundwater |
| 34 | Trinity Lutheran Ch Ed Bldg | Adams | 85 | Transient non-community | Groundwater |
| 35 | Ponderosa Pines - Bathhouse | Adams | 85 | Transient non-community | Groundwater |
| 36 | Moundview Golf Course | Adams | 78 | Transient non-community | Groundwater |
| 37 | Dells Club Condo Assoc 1 | Adams | 75 | Community | Groundwater |
| 38 | Sunset Condominiums - Condo 17 | Adams | 75 | Transient non-community | Groundwater |
| 39 | Sunset Condominiums - Condo 22 | Adams | 75 | Transient non-community | Groundwater |
| 40 | Sunset Condominiums - Condo 21 | Adams | 75 | Transient non-community | Groundwater |
| 41 | Sunset Condominiums - Condo 16 | Adams | 75 | Transient non-community | Groundwater |
| 42 | Sunset Condominiums - Condo 20 | Adams | 75 | Transient non-community | Groundwater |
| 43 | Sunset Condominiums - Condo 14 | Adams | 75 | Transient non-community | Groundwater |
| 44 | Sunset Condominiums - Condo 12 | Adams | 75 | Transient non-community | Groundwater |
| 45 | Sunset Condominiums - Condo 11 | Adams | 75 | Transient non-community | Groundwater |
| 46 | Sunset Condominiums - Condo 10 | Adams | 75 | Transient non-community | Groundwater |
| 47 | Sunset Condominiums - Condo 9 | Adams | 75 | Transient non-community | Groundwater |
| 48 | Pineland Camping Park 1 Pool | Adams | 75 | Transient non-community | Groundwater |
| 49 | Pineland Camping Park 3 Site 125 | Adams | 75 | Transient non-community | Groundwater |
| 50 | Pineland Camping Park 4 Pumphouse Bp | Adams | 75 | Transient non-community | Groundwater |
All other water systems in Adams County (152)
The remaining active systems filed under Adams County, largest first, with the population each reports serving.
- Sunset Condominiums - Condo 1875
- Camp Deep Lake LLC75
- Chula Vista Resort 5 North Tower75
- Sunset Condominiums - Condo 3175
- Sunset Condominiums - Condo 3075
- Sunset Condominiums - Condo 1975
- Sunset Condominiums - Condo 2975
- Sunset Condominiums - Condo 2475
- Sunset Condominiums - Condo 2375
- New Chester Dairy75
- Dells Club Condo Assoc 375
- Dells Club Condo Assoc 275
- Sand Valley Golf Resort Employee Housing_caddy Shack_ops Tlr70
- Castle Rock Co Park-East Well68
- Spot in the Woods Bar & Grill LLC60
- Berry Ridge Estates60
- Wi Trapshooting Trap Shoot Range55
- Wi Trapshooting West Cmpgd Well55
- Crazy Taco55
- Dells Club Condo 554
- Birch Cliff Lodge 254
- Sand Valley Golf Resort- 4 Restroom Facility 153
- Parker Lake Lodge53
- Sand Valley Golf Resort- 5 Restroom Facility 253
- Mos Bar & Grill52
- Wi Dnr Roche A Cri Campgrd 350
- Wi Dnr Roche A Cri Kiosk 250
- Lucky 13 Saloon50
- Sand Valley Golf Resort Sedge Valley Holes 5 & 13 Restroom50
- Shadys Akers Bbq50
- Dells Club Condo 450
- Holiday Shores Cmpgd 2 Lower Bath Hs50
- Holiday Shores Cmpgd 3 Timber Trails50
- Rubbs50
- Holiday Shores Cmpgd 1 Indian Shores50
- Birch Cliff Lodge 150
- Sunset Condominiums - Condo 2544
- Four Seasons Lake View Cmpgd43
- Preston Pines38
- Mill of Arkdale LLC the37
- The Western House34
- Buskes Bighorn Bar & Grill33
- Cedar Shack33
- Point Bluff Resort House Well32
- Dyracuse Recreational Area30
- Sunset Condominiums - Condo 2830
- Lakes Inn 1 the30
- Club 23 Inc.30
- Sunset Condominiums - Condo 730
- Lakeshore Bar and Grill on Jordan Lake29
- Pour Decisions28
- Golden Ferret Golf Sims28
- Pinecrest Golf & Archery27
- Fur Fin & Feather27
- Bay Rest Resort Restaurant27
- Grand Marsh General Store LLC27
- Blue Lake East Well Bathrooms27
- Cove Supper Club the26
- Jb Sales26
- Hoozels at the Lake26
- Inn of the Pines26
- Kwik Trip #92126
- Wisconsin Dolls26
- Adams Inn26
- Barrel Spring Bar & Grill26
- Slip Inn26
- Lake Arrowhead 1 Ski Center26
- Drunken Beaver Lounge & Chophouse26
- Point Bluff Resort Cmpgd26
- Wagon Wheel Bar & Grill26
- Sand Valley Golf Resort 10 Clbhse 2 Dunes Sandbox Biaritz25
- Federal Correctional Institution - Training Ctr25
- White Creek Tavern25
- Wc Corral25
- Bay Rest Resort Motel25
- Point Bluff Resort Bar25
- Dells Christian Cmpgd25
- Wooden Nickel Bar25
- Vans Red Neck Saloon25
- Assembly of God Church25
- Lake Arrowhead 13 Pines 425
- Hiawatha Motel25
- South Burr Oak United Methodist Church25
- Corner Pump the25
- Kingdom Hall of Jehovahs Witnesses25
- Holiday Shores Cmpgd 5 Meadow Well25
- Holiday Shores Cmpgd 4 Upper Bath Hs25
- Witches Gulch25
- Castle Rock Lake Motel 225
- Castle Rock Lake Motel 325
- Grand Marsh Community Center25
- Gorees Catfish Bay 225
- Wi Dnr Roche A Cri Nw Cmpgd 425
- Lake Arrowhead 3 South Lake25
- Lake Arrowhead 4 West Lake25
- Lake Arrowhead 5 North Lake25
- Lake Arrowhead 6 Pines 1525
- Lake Arrowhead 7 Pines 725
- Lake Arrowhead 8b Sports & Cmpng25
- Lake Arrowhead Pines Main Clubhouse25
- Lake Arrowhead 14 Restroom Lake 425
- Lake Arrowhead 1525
- Lake Arrowhead the Lakes Lounge25
- Northern Bay Office Island View Pro Shop25
- Sunset Condominiums - Swimming Pool Bld25
- Sunset Condominiums - Condo 2725
- Sunset Condominiums - Condo 125
- Sunset Condominiums - Condo 225
- Sunset Condominiums - Condo 325
- Sunset Condominiums - Condo 425
- Sunset Condominiums - Condo 525
- Sunset Condominiums - Condo 625
- Sunset Condominiums - Condo 825
- Lake Sherwood Lodge25
- Dollar General #1674425
- Akorn Inn25
- Romanos Pizzaria 1 Cmpgrd25
- Romanos Campground 225
- Woodland Lutheran Church25
- Sand Valley Golf Resort Sedge Valley Turnstand25
- Sand Valley Golf Resort Gallery Restaurant25
- Sand Valley Golf Resort- Maintenance Building25
- Sand Valley Golf Resort- Clubhouse25
- Sand Valley Golf Resort 1 Leopold Cottage B C & Craigs Porch25
- Michaels Landing - Bar25
- Michaels Landing - Campground25
- Irrigation Station25
- Two Brothers Restaurant25
- Winding Creek Cmpgd25
- Cals Corner25
- Avocados 2 LLC25
- Pineland Camping Park 5 Site 4325
- Lure Bar & Grill25
- Lakes Inn 2 the25
- Patrick Lake Co Park 125
- Castle Rock Co Park 8 Shower25
- Castle Rock Co Park 6-Fish Cleaning25
- Camp Lake Mason 225
- Camp Lake Mason 125
- Camp Deep Lake Cmpgd 225
- Camp Deep Lake Cmpgd25
- Dells Camping Resort 425
- Dells Camping Resort 125
- Dells Camping Resort 225
- Dells Camping Resort 325
- Rustic Ridge Resort Cmpgd25
- Rustic Ridge Resort25
- Ponderosa Pines - Campground 125
- Castle Rock Co Park 7-Pines25
- Ponderosa Pines25
- Fawn Creek Winery House Well25
- Fawn Creek Winery LLC Pavillion Well25
Adams County water systems: frequently asked questions
How many public water systems are in Adams County, Wisconsin?
EPA's SDWIS records file 202 active public water systems under Adams County, Wisconsin: 11 community systems (5.4%), 4 non-transient non-community systems (2%) and 187 transient non-community systems (93%).
Who supplies drinking water in Adams County, WI?
The largest community water systems filed under Adams County are Rome Water Utility (2,775 people served), Adams Waterworks (1,847 people served) and Federal Correctional Institution (1,550 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 Adams County's drinking water come from groundwater or surface water?
Of the 202 active public water systems in Adams County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Rome Water Utility, uses groundwater.
Where can I find a water quality report for Adams 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. 11 community systems are filed under Adams 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 Adams 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
- Sheboygan County· 215 systems
- Fond du Lac County· 207 systems
- Waupaca County· 207 systems
- Oconto County· 202 systems
- Sauk County· 199 systems
- Waushara County· 198 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 Adams County, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/adams (data as of October 1, 2026).