- Town of Amherst Water Utility
- Annapolis County Water Utility
- Town of Annapolis Royal Water Utility
- Municipality of the County of Antigonish (Fringe Area, St. Andrews, Lr. South River)
- Town of Antigonish Water Utility
- The Village Commissioners of Baddeck Water Utility
- Bridgetown Water Utility
- Bridgewater Public Service Commission
- The Village Commissioners of Canning Water Utility
- Cape Breton Regional Municipality Water Utility
- Debert Water Utility
- Town of Digby Water Utility
- East Hants Regional Water Utility
- Falmouth Water Utility
- Greenwood Water Utility
- Halifax Regional Water Commission (including Eight Small Water Systems)
- Hantsport Water Utility
- Hazel Hill - Canso Water Utility
- Inverness County Water Utility
- Kentville Water Commission
- The Village Commissioners of Lawrencetown Water Utility
- Town of Lunenburg Water Utility
- Town of Mahone Bay Water Utility
- Town of Middleton Water Utility
- Town of Mulgrave Water Utility
- Town of New Glasgow Water Utility
- The Village Commissioners of New Minas Water Utility
- Town of Oxford Water Utility
- Parrsboro Water Utility
- Pictou County Water Utility
- Town of Pictou Water Utility
- Town of Port Hawkesbury Water Utility
- Village of Port Williams Water Utility
- Region of Queens Water Utility
- Richmond County Water Utility
- Town of Shelburne Water Utility
- Sherbrooke Water Utility
- Springhill Water Utility
- Town of Stellarton Water Utility
- Town of Stewiacke Water Utility
- St. Peter's - Samsonville & Area Water Utility
- The Village Commissioners of Tatamagouche Water Utility
- Three Mile Plains/Wentworth Water Utility
- Town of Trenton Water Utility
- Town of Truro Water Utility
- Victoria County Water Utility
- Town of Westville Water Utility
- Town of Windsor Water Utility
- Town of Wolfville Water Utility
- Town of Yarmouth Water Utility