We found 66 public water systems that could serve the same population as Camp Ottawa (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Iron River | Iron River | 3,019 | 0 | 23 |
| Crystal Falls | Crystal Falls | 1,922 | 0 | 10 |
| Iron River, City Of - Stambaugh | Stambaugh | 1,319 | 0 | 0 |
| Caspian | Caspian | 997 | 0 | 16 |
| Crystal Falls Township - Lind | County of Iron | 990 | 0 | 5 |
| Bates Township | County of Iron | 921 | 0 | 13 |
| Stambaugh Township-west Brule | County of Iron | 580 | 0 | 5 |
| Pentoga Park | Crystal Falls | 540 | 0 | 6 |
| Iron River Township-beechwood | County of Iron | 440 | 0 | 7 |
| Nesbit Lake Org Camp (usfs) | Kenton | 400 | 0 | 4 |
| Crystal Falls Township | Crystal Falls | 400 | 0 | 0 |
| Gaastra | Gaastra | 376 | 0 | 20 |
| Crystal Falls Twp - Townline | County of Iron | 350 | 0 | 5 |
| Hematite Township | Amasa | 350 | 0 | 21 |
| Iron River Township-nash | County of Iron | 340 | 0 | 3 |
| Stambaugh Township-indian Lake | County of Iron | 290 | 0 | 4 |
| Iron River Township-ryden Road | County of Iron | 290 | 0 | 4 |
| Lake Ellen Camp (north) | Crystal Falls | 250 | 0 | 0 |
| Stambaugh Twp.-hagerman Lake | County of Iron | 230 | 0 | 4 |
| Mineral Hills | County of Iron | 230 | 0 | 0 |
| Geo. Young Rec. Complex, W.#2 | County of Iron | 200 | 0 | 0 |
| Bismark Township Hall | Hawks | 200 | 0 | 0 |
| Lake Ottawa Rec Area (usfs) | Iron River | 200 | 0 | 3 |
| Iron River Twp Ryden System | County of Iron | 200 | 0 | 0 |
| Geo. Young Rec. Complex, W.#1 | Iron River | 200 | 0 | 8 |
| Alpha | Alpha | 198 | 0 | 43 |
| Mdot Alpha Roadside Park | Crystal Falls | 150 | 0 | 3 |
| Golden Lake Campground | County of Iron | 125 | 0 | 0 |
| Camp Christine | Crystal Falls | 120 | 0 | 0 |
| Norway Lake Campground | Kenton | 110 | 0 | 0 |
| Tepee Lake #1 | County of Iron | 108 | 0 | 0 |
| Wisc Elec Power Co-site 20 | Crystal Falls | 100 | 0 | 0 |
| Golden Lake Recreation | Basswood | 90 | 0 | 0 |
| Perch Lake Campground (usfs) | Kenton | 80 | 0 | 0 |
| Swan Lake | County of Iron | 70 | 0 | 0 |
| Way Dam Resort | Crystal Falls | 65 | 0 | 0 |
| Crystal Falls Spring | Crystal Falls | 50 | 0 | 0 |
| Usfs-lake St Kathryn Cg #2 Eas | County of Iron | 50 | 0 | 0 |
| Lake Ellen Camp Well | Crystal Falls | 50 | 0 | 0 |
| Wisconsin Electric Pwr-mtn Lk | Crystal Falls | 50 | 0 | 0 |
| Bates Township | East Stambaugh | 50 | 0 | 0 |
| Ski Brule (homestead) | Iron River | 50 | 0 | 0 |
| Mission Bible Training Center | Gaastra | 45 | 0 | 0 |
| Snipe Lake Pub & Grill | Iron River | 30 | 0 | 0 |
| The Prime Cut | Iron River | 27 | 0 | 0 |
| Deer Lake Campground (mdnr) | Amasa | 25 | 0 | 0 |
| Lesandrini Flowing Well | County of Iron | 25 | 0 | 0 |
| Wisconsin Electric Power Co#27 | Crystal Falls | 25 | 0 | 0 |
| Wisconsin Electric Power Co#19 | Crystal Falls | 25 | 0 | 0 |
| Norway Lake, Middle Well, Usfs | County of Iron | 25 | 0 | 0 |
| Glidden State Forest Cg (mdnr) | Crystal Falls | 25 | 0 | 0 |
| Stager Lake Park | County of Iron | 25 | 0 | 0 |
| U Of Mich/camp Filbert Roth | County of Iron | 25 | 0 | 0 |
| Bev's Supper Club | Crystal Falls | 25 | 0 | 0 |
| Lake Ellen | County of Iron | 25 | 0 | 0 |
| Glidden Lake | County of Iron | 25 | 0 | 0 |
| Mansfield Township Park | Crystal Falls | 25 | 0 | 0 |
| Holmes Park | County of Iron | 25 | 0 | 0 |
| Buck Lake Park | County of Iron | 25 | 0 | 0 |
| Usfs-tepee Lake Picnic Area | County of Iron | 25 | 0 | 0 |
| Perch Lake Campground | County of Iron | 25 | 0 | 0 |
| Lake St Kathryn Cg #1 West | County of Iron | 25 | 0 | 0 |
| Dnr-lake Ellen Cg - Picnic | County of Iron | 25 | 0 | 0 |
| Way Dam Resort | County of Iron | 25 | 0 | 0 |
| Tepee Lake Campground Well #1 | County of Iron | 25 | 0 | 0 |
| Brule Lake (usfs) | County of Iron | 25 | 0 | 0 |