Drinking Water

Drinking Water QualityGlassWater

Redmond is part of the Cascade Water Alliance (CWA) and buys 60% of its supply from the Seattle Tolt River supply through the CWA. The rest of our drinking water supply comes from our five municipal supply wells that serve the areas of town east of the Sammamish River. The City of Redmond believes that safe drinking water is no accident - it is our highest priority - but we need your help to continue to be successful.

Redmond’s Wellhead Protection Ordinance was a major step toward protecting the approximately 40% of our City’s drinking water supply that comes from groundwater. Learn more about Redmond’s groundwater and wellhead protection program here

Redmond’s drinking water meets or exceeds all Environmental Protection Agency and Washington State Department of Health drinking water regulations. Water from each supply well is treated before it enters the City water supply system. Currently, Redmond provides three types of treatments - fluoridation, chlorination, and pH adjustment - to comply with these regulations.


Water Quality Report

Meters & Leaks

Our Water System Operations staff install and read water meters, locate and repair leaks in the City's system and maintain other system components. 

We can provide assistance in locating your water meter, reading your own meter, water shut-off for emergencies, diagnosing pressure problems, and advise for tracking down system leaks. Property owners are responsible for maintenance and repair of the service line from the meter to the home or business.

Our water meter readers are often seen working throughout our neighborhoods and business district. They read residential meters (bi-monthly) and commercial meters (monthly), then send this information to Utility Billing for processing. The readers also install and repair meters, do final reads for billing, shut-offs, meter turn-on and other service orders.

Prevent Frozen PipesFrozenWaterFaucet

With the cold weather on its way, the City of Redmond Water Department would like to remind our customers of the importance of protecting water pipes from freezing. 

The most common problems with freezing and breaking occur in the garage, where the main water shut off is usually located. Leave the heat on in the garage, if possible. Pipe insulation, heat tape, and faucet-covers can also be used to protect your plumbing. These items are available at most hardware stores.  

Other concerns in newer home garages are the fire suppression lines and tankless water heater systems.  These water lines must be kept at a temperature above freezing to avoid problems.  If you leave your home unattended during the holidays, it is especially important not to turn the heat down too low.  Broken lines are bad enough but can cause serious damage if water runs for an extended length of time before anyone notices.

If a water line freezes, it is possible to thaw the pipe without damage by following these steps:

1.    Turn the water off at the meter outside.

2.    Run water from the tap inside the house.

3.    Apply heat slowly to the frozen area with a hairdryer. Never use a torch or open flame. This method can heat the pipe too quickly and will greatly increase the chance of the pipe bursting.  Even more important, if a fire starts, there will not be water to extinguish it!

If you have questions or require assistance with turning your water or fire system off, please call the City’s Water Operations staff at 425-556-2846.

In an emergency, call 911.