| Batesburg
Leesville Dept of Public Works |
| Beaufort
Jasper Water and Sewer |
| Berea
Public Service District (Fire Dept) |
| Berkeley
County Water and Sanitation Authority |
| Big
Creek & Hammond |
| Blue
Ridge Rural Water |
| Breezy
Hill Water |
| Broad
Creek PSD |
| Browns
Ferry Water |
| Charleston
Water System |
| Chester
Metropolitan District |
| City
of Bennettsville |
| City
of Camden |
| City
of Clemson Utilities |
| City
of Columbia |
| City
of Folly Beach |
| City
of Georgetown |
| City
of Goose Creek |
| City
of Johnsonville |
| City
of Lancaster Public Work |
| City
of Myrtle Beach |
| City
of Newberry |
| City
of Rock Hill |
| City
of Union |
| Easley
Combined Utility |
| Edgefield
County Water and Sewer |
| Electric
City Utilities-Anderson |
| Fort
Mill Telephone (Comporium) |
| Gaffney
Board of Public Works |
| Georgetown
County Water and Sewer |
| Gilbert-Summit
Rural Water District |
| Greenwood
CPW |
| Greer
CPW |
| Hilton
Head PSD #1 |
| Isle
of Palms Water and Sewer |
| Joint
Municipal Wtr & Swr Comm(formerly Lexington County
Water and Sewer) |
| Kiawah
Island Utility |
| Lancaster
County Water and Sewer District |
| Laurens
CPW |
| Liberty
Chesnee Fingerville Wtr Dist |
| Little
River Wtr & Swr Co., Inc |
| McCormick
Commission of Public Works |
| Mount
Pleasant Water and Sewer Commission |
| Ninety
Six Commission of Public Works |
| Ocean
Lake Family Campground |
| Orangeburg
DPU |
| Powdersville
Water District |
| Richland
County Utilities |
| Saluda
County Water and Sewer |
| Seabrook
Isle Water and Sewer Commission |
| SJWD
Water District |
| South
Island PSD |
| St
Johns Water Company |
| Town
of Bamberg |
| Town
of Blacksburg |
| Town
of Calhoun Falls |
| Town
of Clover |
| Town
of Edisto Beach |
| Town
of Lexington |
| Town
of Pelion Water Department |
| Town
of Pelzer |
| Town
of Ware Shoals |
| Town
of West Pelzer |
| Town
of Winnsboro |
| Union
Cty Public Works - North Carolina |
| University
of South Carolina - Columbia |
| West
Anderson Water Company |
| Williamsburg
County Water and Sewer |
| Woodruff-Roebuck
Water District |
| York
County Water and Sewer |
