Water Supply

reservoir pump room

The City of Langley receives its water supply from Metro Vancouver’s Greater Vancouver Water District originating at Coquitlam Lake located in the mountains to our north. This water is treated and transported through a maze of underground pipes crossing the Fraser River at two locations passing through the City of Port Coquitlam, Pitt Meadows, the Township of Langley and the City of Surrey eventually supplying the City and reservoir.

The City of Langley's reservoir, located at 200A Street and 47A Avenue, is the size of a football field. It contains 22,700,000 litres of water, enough to provide every person in the Greater Vancouver Regional District with 9 litres of water. The size of the reservoir is designed to serve the City for extended periods if there should be a major watermain break in the supply network.

The reservoir is equipped with an automatic shut off valve, which will close if a large earthquake takes place. This will retain the water that exists in the reservoir, which then will be available for domestic and firefighting use. It can serve a population of 55,000, retain extra storage and provide adequate firefighting requirements for several hours. In fact, if necessary, it could provide adequate supply for 70,000 people.

The City of Langley is divided into two pressure zones. These zones split in the area of 53 Avenue with the north half being supplied by gravity from the Clayton reservoir in Surrey at all times and the south being supplied directly from our reservoir. If there is an increase in demand or decrease in supply in the north half of the City (a watermain break or a fire), automatic control valves located along 53 Avenue will open allowing water from our reservoir to supply the north sector in the interim.

To ensure adequate pressures and circulation within the system, there are three 100 horsepower pumps each capable of supplying 105 litres per second with an additional standby pump available should the need arise. We also have a large standby diesel operated generator capable of operating the entire pump station and reservoir during a power outage. These pumps operate in stages as required starting with one then two then the third. They insure circulation of all stored water within a 3 to 4 day time frame. To insure our water remains at the highest standard for domestic use, it is tested weekly at 4 locations and elevations in the reservoir and 12 remote testing stations throughout the City.

The City of Langley Public Works Department flushes and cleans the entire City water system on an annual basis in order to ensure a safe, healthy and odorless supply 24 hours per day every day of the year.

Water Reports:

Water Reports: 2013 2012 2011 2010 2009 2008 2007 2006

Procedure for Cleaning the Water Filter Screen of the Pressure Reducing Valve (PRV)

Step 1- Turn-off the shut-off valve.


Step 2 - Unscrew the plug closest to the incoming water supply.


Step 3 - Remove the screen and clean it with water.


Step 4 - Put the screen back.


Step 5 - Screw-in the plug (do not overtighten).


Step 6 - Turn-on the shut-off valve.


Metro Vancouver Contact Information

Phone: (604) 432-6200
Fax: (604) 432-6901
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Website: http://www.metrovancouver.org/

Tips for Conserving Water:


  • Low flow toilets save 6L per flush
  • Ultra low flow toilets save 14L per flush
  • Checking for leaks can save 1400L/month
  • Water displacement devices can save 12-100L of water per day, depending on the device (stainless steel inserts, toilet dams, save 100L/day)
  • Low flow showerheads save 8L/minute
  • Shorter showers help conserve water
  • Filling the bath only half full saves 80L+/bath
  • Putting a stopper in the tub before starting the water saves 20L/bath
  • Full washer loads and shorter cycles save 96L/load
  • Turning the faucet off when it is not needed can save 10-40L/day
  • Installing a flow restrictor or a faucet aerator can save up to 20L/day
  • Checking for leaks can save 47L/day (2L/hour)
  • Full dishwasher loads on a shorter cycle saves 28L/load
  • Dishwashing by hand and rinsing in a dish pan can save 32-60L per load



  • Water your lawn only when it needs it. An hour of sprinkling uses 1300L of water and since no more than 2.5 cm can be absorbed, watering for longer is no benefit to your lawn. By changing from 3 hours of watering to 1 hour of watering, 2600L of water can be saved.
  • By watering only those things that grow water isn't wasted on the cement. With the correct positioning of your sprinkler 10-35L/minute are saved
  • Choose drought tolerant plants, less water is required and savings can be 10-35Lminute
  • A hose with the water running uses 23L/minute, by using a spring-loaded nozzle you can save up to 16L/minute
  • Water in the cooler parts of the day, less water is lost to evaporation
  • If you aerate, apply compost and weed your lawn, less water will be required
  • Use a bucket of soapy water to wash your car, and use the hose only for rinsing. The hose uses 23L/minute whereas using a bucket can help you save at least two minutes worth of water (46L)
  • Use a broom, not a hose, to clean driveways and sidewalks. A hose uses 23L/minute
  • Use water toys and outdoor "kiddy" pools to cool off, instead of the sprinkler. A sprinkler uses 1300L/hour so the savings can be astounding


Watermain Flushing
Watermain Flushing Frequently Asked Questions