Nanaimo drinking water path

Source

South Nanaimo River (Jump Creek Reservoir) Surface water · +1 sources

raw water

Intake

Raw water intake pump station

to plant

Treatment

South Fork WTP chlorination · UV · filtration

finished

Mains

Distribution Jump Lake provides the large active storage; South Fork Dam maintains intake level for twin gravity pipelines to the plant. Treated water feeds Nanaimo, Snuneymuxw First Nation, and Extension via reservoirs, pump stations, and hundreds of kilometres of mains.

drinking water

Tap

Household tap Nanaimo

Source & supply
South Nanaimo River (Jump Creek Reservoir)
South Fork Reservoir
Jump Lake provides the large active storage; South Fork Dam maintains intake level for twin gravity pipelines to the plant. Treated water feeds Nanaimo, Snuneymuxw First Nation, and Extension via reservoirs, pump stations, and hundreds of kilometres of mains.
Much of the watershed is privately managed forest land; the City partners with Mosaic Forest Management to limit access and protect source quality. Summer releases also support Nanaimo River fisheries flows.
Treatment
South Fork Water Treatment Plant
Gravity-fed membrane ultrafiltration plant online since late 2015; screening, flocculation as needed, UV on secondary membranes, chlorine disinfection. Peak capacity about 116 ML/day.
Treatment on record: chlorination · UV · filtration
At the tap
Hardness 127 mg/L (Hard)
Grade A (Excellent)
pH 8 · lead 0.7 μg/L
ECCC / municipal open data (seed)