Water Utilities

Note: Call 651-458-2808 to report a water leak, emergency water problem, sanitary sewer back-up, or an emergency sewer problem. The Cottage Grove Public Works Department answers phone calls 24-hours a day including weekends and holidays.

Setting Up Utility Services & Utility Billing

To set up service or pay your utility bill please call 651-458-2831 or visit the Utility Payment Options page.

Water Department

The Water Division provides a safe potable supply of drinking water for our customers and ensures the water distribution system and related facilities are managed and maintained in the most efficient and cost-effective way. This includes the general maintenance/repair of the City's water distribution system and all related equipment including:

  • 12 municipal walls
  • 8 pump houses
  • 6 water storage facilities with a storage capacity of 7.15 million gallons
  • 1 booster station control center with a pumping capacity of 12,000 gallons per minute (GPM)

Water Meter Repairs

Water meters measure the amount of water used by individuals and/or businesses. Occasionally the City may need to gain access to your home to repair the water meter. You will receive a letter in the mail asking for you to call the Public Works Department at 651-458-2808 to schedule an appointment.

A uniformed City employee will arrive at your home in a City marked vehicle to make this repair at the scheduled time. The City is responsible for the repair of the water meter in your home if it is not caused by the negligence of the homeowner. If you have a meter that is leaking or not functioning properly, call Public Works at 651-458-2808 24 hours a day, 7 days a week.

Water Meter Turn-On & Turn-Off Procedures

If you need the water turned off at the curb call the Public Works Department at 651-458-2808 to schedule an appointment. Please have a lock-box code or be prepared to meet the Utility employee at the time of the shut-off. There is a $75 fee for a turn-off and $25 fee for a turn-on service that will be added to the utility bill. Water shut-off and turn-on services can take up to four days so plan accordingly. The following forms must be completed before the service.

Water Quality Reports

The Cottage Grove Utility Department is continuously maintaining and upgrading the infrastructure required to bring the residents and businesses of the City a safe and abundant supply of water.

  • Water Quality/Hardness (milligrams per liter or parts per million (mg/L))
    • Chlorine: 0.4 mg/L
    • Fluoride: 1.1 mg/L
    • Alkalinity: 236 mg/L
    • pH: 7.6
    • Hardness: 298 mg/L (17 grains per gallon)

Water Quality Report - 2021

Water Quality Report - 2020

Water Quality Report - 2019

Water Quality Report - 2018

Hydrant Flushing 

Hydrant flushing will begin (weather permitting) on September 28, 2021.  See Flushing Map here.

To protect the City's water supply, all Cottage Grove water mains will be flushed twice a year. Once in the fall and once in the spring. Notification of the flushing will be posted on the City's website and on Facebook. The crews begin in Zone One and finish in Zone Four. Please check the map (JPG) to see what zone you reside in.

This process often causes discoloration of your water. The water is safe to drink but could stain laundry. Check for discoloration before using your washer. The Public Works Department also suggests you flush out the taps in your home, as iron deposits tend to build up in the residential lines. Once hydrants have been flushed, open the outside faucets and run all the cold water taps in your home until the water runs clear. This can sometimes take 10 to 30 minutes.

Lawn Watering

Odd/even and time of day watering restrictions in effect. Residents may water lawns and/or gardens every other day, based on the last digit of your house number. If the house number ends in an even number (0,2,4,6,8), water on even-numbered days. If the house number ends on an odd number (1,3,5,7,9), water on odd-numbered days. 

No watering is allowed on the 31st of the month. No watering is allowed any day between noon and 4 pm Violations shall constitute a misdemeanor and are punishable by a fine or imprisonment or both. If you have new seed or sod you can obtain a temporary permit that allows you to water outside of your schedule by contacting Public Works.

Effective Monday, August 9, 2021 

  • Residents are prohibited from watering on Tuesdays AND Wednesdays. From Thursday through Monday, residents are still required to follow the odd-even house number restrictions and time of day restrictions (no watering from noon to 4 p.m.)
  • Hand-watering plants and trees, children playing in sprinklers, and washing vehicles is still permitted 
  • The City will be turning off irrigation systems located at City boulevards, roundabouts, and facilities.
  • The City’s development team is asking builders to delay any sod placement projects until at least September.
  • River Oaks Golf course will be reducing its watering schedule. 
  • Residents who use well water are also strongly encouraged to conserve water during the drought by refraining from watering on Tuesdays and Wednesdays.