We found 88 public water systems that could serve the same population as Odnr-tar Hollow State Park (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Ross County Water Co Inc Pws | Chillicothe | 35,345 | 16 | 8 |
| Chillicothe City Pws | Chillicothe | 21,725 | 20 | 8 |
| Chillicothe Correctional Institute | Chillicothe | 9,000 | 14 | 15 |
| V.a. Medical Center | Chillicothe | 1,500 | 0 | 0 |
| Kingston Village Pws | County of Ross | 1,219 | 0 | 32 |
| Frankfort Village Pws | County of Ross | 1,100 | 0 | 1 |
| Mead Paper Corp. | County of Ross | 999 | 0 | 0 |
| Bainbridge Village Pws | County of Ross | 900 | 0 | 24 |
| Ricmond Dale Elementary School | County of Ross | 850 | 0 | 0 |
| Chillicothe V.a.medical Center | County of Ross | 800 | 0 | 0 |
| Paint Valley High School | Bainbridge | 580 | 0 | 0 |
| Mgr,joes Texaco | County of Ross | 500 | 0 | 0 |
| Clarksburg Village Pws | County of Ross | 455 | 0 | 28 |
| Twin Elementary School | Bourneville | 445 | 0 | 0 |
| Carousel Court Mhp | Chillicothe | 300 | 0 | 0 |
| Odells Restaurant | County of Ross | 300 | 0 | 0 |
| Mgr,mr.ds Cardinal Super Mkt | County of Ross | 300 | 0 | 0 |
| Farmers Market | County of Ross | 300 | 0 | 0 |
| Londonderry Elementary School | County of Ross | 265 | 0 | 0 |
| Mgr,oh Dnr,tar Hollow State Pk | County of Ross | 250 | 0 | 0 |
| Haas Trailer Court | County of Ross | 207 | 0 | 0 |
| Buckskin Elementary School | County of Ross | 206 | 0 | 0 |
| Mgr,oh Dnr,scioto Trail St.pk. | County of Ross | 200 | 0 | 0 |
| Dogwood Circle Camp | County of Ross | 200 | 0 | 0 |
| Mgr,dicks Drive Inn | County of Ross | 200 | 0 | 0 |
| L & S Dairy Bar | County of Ross | 150 | 0 | 0 |
| Queen City Court Mhp | County of Ross | 150 | 0 | 36 |
| Mgr,fox Farm Inn | County of Ross | 150 | 0 | 0 |
| Wagner's Restaurant | County of Ross | 150 | 0 | 0 |
| School House Restaurant Pws | Chillicothe | 150 | 0 | 0 |
| Wiles Restaurant | County of Ross | 150 | 0 | 0 |
| Mgr Tar Hollow State Park | County of Ross | 150 | 0 | 0 |
| Principal Higby Elementary Sch | County of Ross | 140 | 0 | 0 |
| Country Wood Estates Mhp | Chillicothe | 135 | 0 | 0 |
| Pride Head Start | County of Ross | 105 | 0 | 0 |
| A&k Family Restaurant | Chillicothe | 100 | 0 | 0 |
| Shady Cove Mobile Home Park | County of Ross | 100 | 0 | 0 |
| Chillicothe Golf Center | County of Ross | 100 | 0 | 0 |
| The Canal House | Chillicothe | 100 | 0 | 0 |
| Mgr,dicks Dairy Corner | County of Ross | 100 | 0 | 0 |
| Stardust Tavern | Chillicothe | 100 | 0 | 0 |
| Hiway Restaurant | Chillicothe | 100 | 0 | 0 |
| Hopetown Market Pws | County of Ross | 100 | 0 | 0 |
| Mgr,cavalier Skating Rink | County of Ross | 100 | 0 | 0 |
| Harrison Elementary School | County of Ross | 90 | 0 | 0 |
| Mays Mobile Home Court | Chillicothe | 88 | 0 | 0 |
| Family Donut Shoppe | County of Ross | 70 | 0 | 0 |
| Greenfield Church Of Jesus Christ Pws | County of Ross | 70 | 0 | 0 |
| Blair Mobile Home Park | London | 70 | 0 | 0 |
| Madru Subdivision | County of Ross | 66 | 0 | 0 |
| Pike Water,inc/ross Co.4 | Jasper | 63 | 0 | 0 |
| Mgr,blue Gable Inn | County of Ross | 63 | 0 | 0 |
| Light House Youth Center | Bainbridge | 56 | 0 | 0 |
| Big L Restaurant | County of Ross | 50 | 0 | 0 |
| Buffalo Trail Camping Area | County of Ross | 50 | 0 | 0 |
| Manager, Centurian Aviation | County of Ross | 50 | 0 | 0 |
| Running Fox Golf Course | County of Ross | 50 | 0 | 0 |
| Paint Valley H.s. Stadium | County of Ross | 50 | 0 | 0 |
| Country Trader | County of Ross | 50 | 0 | 0 |
| Manager,clayburn Court Mhp | County of Ross | 41 | 0 | 0 |
| Mgr,doxol Propane | County of Ross | 40 | 0 | 0 |
| Mgr,valley View Manor Nur.home | County of Ross | 39 | 0 | 0 |
| Central Transport | County of Ross | 38 | 0 | 0 |
| Telesis Controls Corp | Chillicothe | 37 | 0 | 0 |
| Manager,currence Trailer Park | County of Ross | 36 | 0 | 0 |
| Eagle Hollow Mobile Home Park | County of Ross | 30 | 0 | 0 |
| Mgr,mcgee Trailer Park | Springfield Twp | 28 | 0 | 0 |
| Ross County Airport | County of Ross | 27 | 0 | 0 |
| Mgr,eagle Hollow Trailer Park | County of Ross | 26 | 0 | 0 |
| Odot-rest Area 9-49 Pws | Chillicothe | 25 | 0 | 0 |
| The Bridge Pws | County of Ross | 25 | 0 | 0 |
| Odot-rest Area 9-32 | Chillicothe | 25 | 0 | 0 |
| Mgr,oh Dnr,ross Lake | Springfield Twp | 25 | 0 | 0 |
| The Old Home Place Pws | County of Ross | 25 | 0 | 0 |
| Camp Sherman Rifle Range | Columbus | 25 | 0 | 0 |
| South Central Prosthetic | Chillicothe | 25 | 0 | 0 |
| Hirns Corner Pws | County of Ross | 25 | 0 | 0 |
| Mgr,oh Dnr,tar Hollow State Pk | County of Ross | 25 | 0 | 0 |
| Southern Sunoco | County of Ross | 25 | 0 | 0 |
| Mgr,red Barn Tavern | Springfield Twp | 25 | 0 | 0 |
| Mgr,wilsons Grocery | County of Ross | 25 | 0 | 0 |
| Oper.engr,odot-rest Area 9-35 | County of Ross | 25 | 0 | 0 |
| Odot-rest Area 9-42 Pws | Chillicothe | 25 | 0 | 0 |
| Odot-rest Area 9-10 | Chillicothe | 25 | 0 | 0 |
| Life Crown Chapel | Chillicothe | 25 | 0 | 0 |
| Cardo's Pizza | County of Ross | 25 | 0 | 0 |
| Twin Dairy Llc | County of Ross | 25 | 0 | 0 |
| J.t. Dairy Express | County of Ross | 25 | 0 | 0 |