From source to sink
Where Surrey water comes from
A plain-language tour of the lakes, rivers, or wells that feed Surrey, the plants that clean the water, and how it reaches kitchen taps. Lab grades for hardness, lead, and pH live on the water quality page.
On the map
Where Surrey water lives
Source waters and treatment plants pinned from published utility names. Open a pin below for the full OpenStreetMap view.
- CitySurrey
Municipal service area
- Source waterCapilano Reservoir
Source water
- Source waterSeymour Reservoir
Source water
- Treatment plantSeymour Capilano Filtration Plant
Approximate pin near Surrey (exact plant coordinates pending)
- Treatment plantCoquitlam Water Treatment Plant
Approximate pin near Surrey (exact plant coordinates pending)
Map data © OpenStreetMap contributors. Pins are approximate for orientation, not legal survey points.
Deep dive for households
Surrey drinking water starts as surface water (rivers, lakes, or reservoirs). The named sources on the utility record are Capilano Reservoir, Seymour Reservoir, Coquitlam Reservoir. That is the water that eventually reaches kitchen taps after treatment, not a separate bottled brand.
Surrey uses more than one treatment plant (Seymour Capilano Filtration Plant; Coquitlam Water Treatment Plant). Utilities often run plants in parallel so different neighbourhoods can be served, or so one plant can cover for another during maintenance. Seymour Capilano Filtration Plant: Regional Metro Vancouver treatment for Capilano/Seymour sources. Coquitlam Water Treatment Plant: Regional Metro Vancouver treatment for Coquitlam source; Surrey reports receiving a large share of supply via Coquitlam and Seymour crossings (Annacis, Port Mann, Barnston).
After treatment, water moves through pumps, storage, and underground mains to reach streets and buildings. Surrey buys all potable water from the Greater Vancouver Water District and operates one of BC’s longest municipal distribution networks, with many pressure zones and pump stations. Secondary chlorination is applied before water enters city mains; no further municipal treatment.
One detail that makes Surrey water feel local: City water-quality materials note fluoride is not added to Surrey’s Metro Vancouver-supplied drinking water. Lab grades for hardness, lead, and pH sit on the city water quality page; this overview is about the route the water travels.
Where it starts
Surface water
Rivers, lakes, or reservoirs, not underground wells as the main draw.
Research confidence: high
Named source waters
- Capilano Reservoir
- Seymour Reservoir
- Coquitlam Reservoir
Treatment plants
These are the buildings that filter and disinfect water before it enters city pipes.
Seymour Capilano Filtration Plant
Regional Metro Vancouver treatment for Capilano/Seymour sources.
Coquitlam Water Treatment Plant
Regional Metro Vancouver treatment for Coquitlam source; Surrey reports receiving a large share of supply via Coquitlam and Seymour crossings (Annacis, Port Mann, Barnston).
How it reaches your street
Surrey buys all potable water from the Greater Vancouver Water District and operates one of BC’s longest municipal distribution networks, with many pressure zones and pump stations. Secondary chlorination is applied before water enters city mains; no further municipal treatment.