| City
of Bennettsville |
| City
of Columbia |
| City
of Folly Beach |
| City
of Greenville |
| City
of Johnsonville |
| City
of Newberry |
| City
of Rock Hill |
| City
of Seneca Light and Water |
| City
of Union |
| City
of West Columbia |
| Edgefield
County Water & Sewer |
| Gaffney
Board of Public Works |
| Georgetown
County Water & Sewer |
| Horry County Government |
| Saluda
County Water and Sewer |
| Town
of Bamburg |
| Town
of Blacksburg |
| Town
of Lexington |
| Town
of West Pelzer |
| Town
of Winnsboro |
| Union
County Public Works- North Carolina |
| York
County Water & Sewer |
