Working with Klohn Crippen Berger, Source 2 Source was the environmental design subconsultant for this stormwater quality retrofit wetland. This wetland serves a large industrial area in the southeast Calgary. Due to the topographic limitations of this catchment area, the stormwater drains into the main Western Irrigation Canal. Concerns regarding contamination of irrigation water in the canal led to the stormwater wetland retrofit, which focuses on the best possible water quality treatment.