WA Page Banner



Diane Monahan, Water Services Manager

City West Building
611 N Exchange Ave.
PO Box 3003
Gillette, WY 82717
Phone (307) 686-5262
Fax (307) 686-6564
Send an E-mail  (do not email if you are experiencing an outage, please call the number below)


If you are experiencing a water outage, call (307) 686-5276.


Why does the Water Department flush hydrants? 
•Hydrant flushing is used to improve water quality and flow rates. 
•Hydrant flushing is preventative maintenance for the water distribution system. Releasing water at high velocities from hydrants scours and scrubs water mains. This dislodges films, removes sediments and deposits, and helps control corrosion. 
•While flushing the hydrants, crews will also test flow rates and work the valves on hydrants. This tests the hydrants to make sure they are ready, if needed, to protect our community from fire. 
•Results from these tests will be used to mark hydrants so fire fighters can quickly assess flow capabilities. 
•The results are also used by the Insurance Service Office to rate Gillette’s fire suppression abilities. Better ratings result in lower commercial and residential insurance premiums. 

The Water Division produces and distributes potable water to the citizens and businesses of Gillette. The water is produced from 26 wells and is treated to remove dissolved gases and is disinfected prior to distribution for use. The wells are located in three aquifers: the Fort Union, Lance-Fox Hills, and the Madison.

The Water Division operates and maintains seven pump stations, ten storage reservoirs, about 342 miles of water pipe, and several thousand fire hydrants and main line valves. Summer peak water production in 2015 was 10.8 MGD.

The water provided to the citizens of Gillette meets all the requirements of the Safe Drinking Water Act (SDWA). This information is included in the annual 2016 Water Quality Report [PDF].

A paper copy may be requested and sent to you by calling the City of Gillette Water Division (307-686-5276).

What should I do if water is discolored?
•Run cold water from a faucet or hose for up to 20 minutes to clear the discolored water from service lines. The service line is the pipeline that connects the building to the water main. If the water doesn't clear, call the City of Gillette Water Division at 686-5276. Once the water flows clear, normal water use may resume.
•Avoid doing laundry or using hot water while the water is discolored. This will prevent sediment from being drawn onto clothes or into the water heater.

Other Links:

Free viewers are required for some of the attached documents.
They can be downloaded by clicking on the icons below.

Acrobat Reader Flash Player QuickTime Windows Media Player Microsoft Silverlight Word Viewer Excel Viewer PowerPoint Viewer