The Seymour Arm Water Users Community is a cooperative utility providing water to its member/owners in the community of Seymour Arm, British Columbia. It has a total membership of 172 making it one of the largest water cooperatives in the province.

The water comes from the Bass river on Long Ridge east of the community.
Potable or drinkable water is provided to the commuinity from the cooperative's purification plant which uses filtration as well as ultra violet light.