County drinking water records
Johnson County, AR drinking water systems
10 community water systems serve Johnson County, AR, reporting 31,098 people served in all. A system that also serves other counties counts all of its customers here.
1 of them (10%) had at least one health-based violation in the last 10 years. 3 systems still have one unresolved.
10 rely mainly on surface water, counting water bought from other systems.
9 systems filed a lead service line inventory listing 0 lead lines, 395 galvanized lines that must be replaced and 4,211 lines of unknown material.
- Community water systems
- 10
- People served, sum of each system's own figure
- 31,098
- Systems with a health-based violation, last 10 years
- 1
- Systems with one unresolved
- 3
- Lead service lines in inventories
- 0
Water systems serving Johnson County
10 systemsPeople 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 |
|---|---|---|---|---|---|---|
| Clarksville Connected Utilities | Clarksville | 9,410 | Surface water | 0 | 0 | 0 |
| Horsehead Water Association | Ozone and land outside it | 5,792 | Purchased surface water | 0 | 1 | 0 |
| East Johnson Co Water Assn | Hagarville and land outside it | 5,200 | Purchased surface water | 0 | 0 | 0 |
| Watalula Water ASS0CIATION | Outside cities and towns | 2,278 | Purchased surface water | 0 | 0 | 0 |
| Knoxville Waterworks | Knoxville and land outside it | 2,087 | Purchased surface water | 0 | 0 | 0 |
| Lamar Waterworks | Lamar | 1,885 | Purchased surface water | 0 | 0 | 0 |
| Ludwig Water Association | Outside cities and towns | 1,610 | Purchased surface water | 0 | 0 | 0 |
| Coal Hill Waterworks | Coal Hill and land outside it | 1,372 | Purchased surface water | 2 | 1 | No inventory |
| Hartman Waterworks | Hartman | 947 | Purchased surface water | 0 | 0 | 0 |
| Spadra-Goose Camp Water Assoc | Clarksville and land outside it | 517 | Purchased surface water | 0 | 1 | 0 |
Cities and towns in Johnson County
7 places- Clarksville2 systems
- Coal Hill1 system
- Hagarville1 system
- Hartman1 system
- Knoxville1 system
- Lamar1 system
- Ozone1 system
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