Hagwilget Lagoon Wastewater Treatment Plant, British Columbia

Hagwilget Lagoon is a wastewater treatment facility located near Highway 62 in Hagwilget, within the Regional District of Kitimat-Stikine, British Columbia, Canada. The plant serves a small population of 245 residents in the unincorporated area of Area B (Suskwa/Kitwanga/Kispiox). As a secondary treatment plant, Hagwilget Lagoon meets the standard treatment requirements for small communities in Canada. Under the federal Wastewater Systems Effluent Regulations (WSER), secondary treatment is the baseline for most systems, ensuring removal of biodegradable organic matter and suspended solids. The plant's discharge volume of 110 cubic meters per day reflects its small scale. The treated effluent from Hagwilget Lagoon is released into the local watershed, which ultimately drains into the Skeena River system. The Skeena River is one of British Columbia's major salmon-bearing rivers, supporting diverse aquatic life including Pacific salmon species. The plant's operation helps protect downstream water quality in this ecologically significant region.

Hagwilget Lagoon discharges into a local watercourse that flows into the Skeena River, a major coastal river in British Columbia. The Skeena River supports critical salmon runs and diverse aquatic ecosystems. The plant's secondary treatment helps reduce nutrient and organic loading, protecting downstream habitats in the Skeena estuary and the Pacific Ocean.