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Water quality and pressure

Providing high-quality, affordable water is one of the City's priorities.

The City of Vancouver's mission is to provide you with a sustainable supply of high-quality water.

Drinking water is tested for quality at the source waters by Metro Vancouver before the water is sold to the municipalities.  This water is then tested for quality by the City of Vancouver numerous times as it travels through the city's water distribution system to your tap. The results consistently show that Vancouver's drinking water quality is excellent.

Water pressure

Water pressure is largely provided by gravity from higher elevation resevoirs. Vancouver is divided into a number of areas by elevation in order to maintain reasonable water pressures.

The City also operates 30 pressure reducing valves, and one combined pressure reducing valve-flow regulation valve station to further control water pressure.

Help protect our drinking water quality

In larger complexes, Vancouver requires backflow prevention assemblies to be installed to protect drinking water from contamination by the backflow from water used for other purposes:

  • Fire sprinkler systems
  • Underground lawn irrigation systems
  • Commercial boiler systems
  • Residential and commercial boiler systems with anti-freeze

Backflow prevention assemblies have internal seals, springs and moving parts that can wear out. Backflow prevention assemblies must be tested after installation, and tested annually by a certifed tester, in accordance with the Vancouver Water Works Bylaw 4848.

How the City keeps your water clean, and accessible

Vancouver's water supply goes through a series of tests to make sure it is safe to drink.

Drinking water monitoring and results

Learn about Vancouver's water monitoring program, and access water testing reports and results by neighbourhood.

The Seymour-Capilano filtration plant will treat most of Vancouver's water supply.

Water treatment

Learn about the water treatment efforts made by Metro Vancouver at the Seymour-Capilano water filtration plant that keep Vancouver's water supply safe.

Water main flushing helps to maintain the high quality of Vancouver's water.

Water main flushing program

Find out about how flushing the water main system improves water quality in Vancouver.

Find out when to call the City versus a plumber for water pressure problems.

Problems with water quality or pressure

Is your water cloudy or brown? Did the water pressure suddenly change? Find out who to call to resolve problems with your water quality and water pressure.

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Did you know

What comes out of your faucet is fresh, potable water.

Only 3 percent of the world's water is fresh, and less than one third of 1 percent is available for human use.

Whether you turn on a faucet or set out your sprinkler, the water that spills out is fresh, potable water.

Read more about Vancouver's efforts to conserve and protect this natural resource.

Conserve and protect

Water quality and pressure

Find out who can help you to fix water quality and water pressure problems.

Use our guide

Drinking water monitoring and resultsWater treatmentWater main flushing programProblems with water quality or pressure