The District operates a water treatment plant that provides water to Sudden Valley and Geneva residents. Four reservoirs, 5 pump stations and 55 miles of transmission and distribution lines serve the water treatment plant. On the North Shore near Agate Bay, water service is provided from a well and water treatment facility that is operated by the District. The District also distributes water purchased from the City of Bellingham to its Eagleridge customers. All water distributed by Lake Whatcom Water and Sewer District meets or surpasses EPA Safe Drinking Water standards.
The District does not treat its own sewage. Wastewater services within the District consist of the collection and transmission of sewage flows to the regional wastewater treatment facility operated by the City of Bellingham. The mostly forested, steep slopes of the watershed offer a complex and challenging environment in which to operate utility services. The District owns and operates 28 sewer lift stations and maintains over 71 miles of sewage collection and transmission lines. Sewage from the District is collected and pumped to the secondary wastewater treatment plant at Post Point for treatment. Sewage disposal costs and a share of the facility upgrades and maintenance costs to the District are based on the volume of sewage sent to the wastewater treatment plant.