💧 CRD Integrated Water Services — Sooke Lake watershed is closed to the public; the CRD owns the entire 11,025 ha catchment. No active water use restrictions. CRD restrictions page →

System at a Glance

Source Type
Surface
Sooke Lake watershed (closed)
Reservoir Buffer
~2 years
92,700 dam³ usable at current demand
Restriction Stage
Loading…
Per-Capita Use
330
L/person/day · CRD 2023

Watershed Inflow — Real-Time Stations

Sooke River below Millar Creek
08HA010
Sooke
Discharge
m³/s
Level
m
Sooke River upstream of Charters Creek
08HA059
Upstream
Discharge
m³/s
Level
m

Reservoir Storage

Sooke Lake Reservoir

92,700 dam³ usable · max 160,320 dam³
Estimated ~58% of max — CRD does not publish real-time levels

The CRD owns the entire 11,025 ha Sooke watershed — the largest municipally-owned closed watershed in Canada. Water gravity-feeds via the 44 km Sooke Flowline (built 1915) into the distribution system. At current demand (~330 L/person/day × 400,000 people), usable storage represents approximately two years of supply with no inflow.

⚠ Real-time reservoir levels are not publicly available. CRD publishes storage data in annual reports only.

Per-Capita Storage Comparison

Victoria's 0.401 dam³/person of usable reservoir storage is among the highest of any Canadian city — a function of the large Sooke Lake basin relative to the population served.

Victoria · 0.401 dam³/person
Vancouver · 0.444 dam³/person (est.)
Calgary (Glenmore) · 0.017 dam³/person
Edmonton · ~0.001 dam³/person
Storage per capita = usable reservoir volume ÷ population served. Excludes in-distribution storage.

Watershed & Station Map

Sooke River Flow Profile

Scale:

Greater Victoria Water System

Sooke Lake Watershed (closed)
Sooke Lake Reservoir (92,700 dam³)
Sooke Flowline (44km, built 1915)
CRD WTP · UV + Cl₂
Distribution · 400,000 people
Secondary sources: Goldstream River, Thetis Lake (emergency/supplemental only)

Infrastructure Context

The Sooke Flowline — 110 years old and counting

The Sooke Flowline is a 44 km concrete aqueduct built in 1915 to carry water from Sooke Lake to Victoria. Gravity-fed, with a dish-shaped concrete floor and parabolic cover designed to prevent winter freezing, it was a remarkable engineering achievement for its era.

At 110 years old, the Flowline is the single most critical piece of infrastructure in Greater Victoria's water system — and its age is a growing concern. A failure of the Flowline would cut off the primary supply to the region with no immediate alternative conveyance available at scale.

CRD publishes condition assessments of the Flowline periodically. Asset condition not publicly available in real-time.

No fluoride since 2011

Victoria and Metro Vancouver are two of the largest Canadian cities that do not fluoridate their drinking water. The CRD board voted to remove fluoride from the Greater Victoria supply in 2011, citing cost and community preference. BC's public health position supports fluoridation but leaves the decision to utilities.

This makes Greater Victoria an outlier relative to most Canadian cities, and a common reference point in national debates about fluoride policy.

Victoria also made headlines until 2020 for being the last major Canadian city discharging raw sewage — the McLoughlin Point secondary treatment plant opened that year, ending a decades-long political impasse.

Full Water Cycle Summary

Treatment
CRD WTP
UV + chlorination · 330 ML/day capacity · No filtration (closed watershed) · No fluoride
Use
330 L/person/day
Residential 62% · Commercial 30% · Industrial 8%
Egress
McLoughlin Point WWTP
Secondary treatment + UV · Discharge: Strait of Juan de Fuca · Operational since 2020