| Business | Phone |
| Hammond-Wood Treatment Plant 128 Gary Ln, Hopkinsville 42240 | (270) 887-4297 |
| Hopkinsville Sewage Plant 500 Disposal Plant Rd, Hopkinsville 42240 | (270) 887-4250 |
| Hopkinsville Water Environment 401 E 9th St, Hopkinsville 42240 | (270) 887-4246 |
| Hopkinsville Water Environment 405 E 10th St, Hopkinsville 42240 | (270) 887-4248 |
| Moss Water Treatment Plant 1000 Metcalfe Ln, Hopkinsville 42240 | (270) 887-4232 |
| Christian Water District 1960 Dawson Rd, Hopkinsville 42240 | (270) 886-3696 |