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RCMP: 669-1111 Fire & Ambulance: 873-2222

Water and Sewer


The Public Works and Engineering Department is responsible for the maintenance of the system. This  includes pumping and treatment, frost protection, water meters, maintenance of reservoirs, fixing water leaks, looking after water mains, maintenance of the sewer system, the storm sewer system, lift stations, and the sewage lagoons.

Please be advised that noisy water pipes or sinking ground could be indications of a service break. Should you have any concerns please report them to the City.

NOTICE: As of September 18th, the water at the RV Fill Station at Pump House 4 is now turned off. The sanitary sewer dump is still available until further notice.

Piped Water and Sewer

The majority of the City of Yellowknife is on piped water and sewer service.

The current piped water and sewage system is composed of 4 pumphouses and 2 recirculation stations, 3 reservoirs, 11 lift stations, 62 km of buried water main and a slightly smaller quantity of sewer main, poly summer water line (above grade generally), approximate 11 km of forcemain, and a sewage lagoon system complete with control structures.

The City of Yellowknife 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.

To insure our water remains at the highest standard for domestic use, continuous CL2 monitoring is done 24/7 at six locations. Elevations in the reservoir and bacteriological samples are done monthly at three locations.

Trucked Water and Sewer

Only Old Town, Latham Island, Ndilo, Kam Lake Industrial Park, Con and Rycon Trailer Park, commercial buildings at the Airport and some commercial buildings along Old Airport Road receive truck water delivery and sewage pumpout. Trucking currently services approximately 680 residents or just under 4% of the population not including commercial/industrial demand (about 1,600 employees).

Surface Water Line in Summer

Summer water lines are located north of School Draw Avenue, in Old Town and on Latham Island.

NOTICE -Surface Line Shut-Down

The City of Yellowknife wishes to inform residents that the surface water lines in Old Town will be turned off Monday September 12, 2016. ( Lines are to be disconnected from each residence).  Residents are asked to ensure tanks are full prior to 7:00am, September 12, 2016, as delivery schedules will not resume until the first normally scheduled day following this date.

Water and Sewer Registration, Discontinuation and Pre-authorized Payment

To register for water, sewer and garbage services, please complete the Utility Registration Form. There will be a fee applied to your first utility bill for setting up these services.

You can also sign up to pay for utilities with our Pre-Authorized Payment form.

To discontinue water, sewer and garbage services, please complete the Utility Discontinuation Form.
Freeze Protection

Preventing your water and sewer lines from freezing is an important homeowner responsibility. Use the Water Line Freeze Protection Tips to ensure your pipes don't freeze in the winter.

Surface Water Line Shut Off For Old Town and Lathem Island

Thursday June 16, 2016 - 9:00 am to 11:00 am

Surface Water Lines will be shut off to facilitate water system connections related to the Franklin Avenue Upgrade Project.

Residents are advised to fill their tanks prior to the shut off to minimize disruption in service.


Service Connection Failure Program

In the event of a water or sewer connection failure, the City may be able to help offset the associated costs with the Service Connection Failure Program.

Annual Water main cleaning and Hydrant Flushing

Please be advised starting, Tuesday, June 14th, 2016, The Water and Sewer Division will begin our annual water main cleaning and hydrant flushing.  This project will run for 8 hours per day from 7:00am to 4:00pm, Monday to Friday for approximately the next several weeks. Residents may experience periodic dirty or cloudy water, and are asked to run the taps for a few minutes or until the water becomes clear.

Please feel free to contact the department of Public Works at 766-5512, if there are any questions or concerns.  We do apologize in advance for any inconvenience this may cause.