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Water Plant


The Water Plant is responsible for providing The City of Lake Forest with potable drinking water while complying with the water quality standards set by the Federal Environmental Protection Agency. We are responsible for maintaining the Water Plant and its outlying buildings including various sewer lift stations throughout the City. Through the operations and maintenance of the water and sewer systems we provide for the health and safety of the customers we serve. There are six Water Plant Operators manning the Water Plant and distribution facilities on varying shifts 24 hours a day, 365 days a year, to ensure the delivery of safe drinking water.

We are pleased to present a summary of the water provided to you in the last year. This Annual Water Quality Report details where our water comes from and what it contains. The entry point water supplied by the Lake Forest Water Plant meets or surpasses all Federal and State regulations.

The Lake Forest Water Plant is supplied by surface water from Lake Michigan. Water is drawn from Lake Michigan through 42-inch and 24-inch intake pipelines.

Watering Restrictions - "Sprinkler-Free Mondays"

Beginning May 15, the Department of Natural Resources and City ordinance state that sprinkling restrictions are in effect through September 15.  This new regulation applies to both automated irrigation systems and manual sprinklers. If you own an automated irrigation system, it can be easily programmed.

  • Even-Numbered Addresses (i.e. 808 Smith Street) may sprinkle from midnight - 10 a.m. and 8 p.m. - midnight on: Tuesdays, Thursdays and Saturdays.
  • Odd-Numbered Addresses (i.e. 809 Smith Street) may sprinkle from midnight - 10 a.m. and 8 p.m. - midnight on: Wednesdays, Fridays and Sundays.
  • Sprinkling between 10:00 a.m. and 8:00 p.m. is NOT allowed because water put on lawns during these hours is quickly evaporated by the afternoon sun.  Additionally, night time irrigation during the summer months “drain” the City’s water reserves, and the water plant needs the time during the following day to build those reserves back up.  Irrigation may occur from midnight until 10:00 a.m. and 8:00 p.m. until midnight on assigned days.
  • Property owners should make sure that irrigation systems are programmed to comply with these regulations.  Newly installed lawns and landscaping, exempt from these restrictions, may be watered daily for a reasonable period after installation.

The restrictions allow for half of the residents of Lake Forest to water every day.  However, in the event of drought or an emergency water shortage, the City may impose further summer outside water use restrictions.  For additional information about water restrictions, please contact John Gulledge at 847-810-4650 or Donna Dunn at 847-810-3542.

Lake Forest Drinking Water

The source of all our drinking water is Lake Michigan. The water is treated using an Ultrafiltration Membrane System and we produce 1.4 billion gallons annually. Click here for Frequently Asked Questions About the Lake Forest Drinking Water.

You can call the Water Plant between the hours of 6:30 a.m. to 3:00 p.m. at 847-810-4650 to inquire about water quality issues.

220 E. Deerpath, Lake Forest, IL 60045
(847) 234-2600
Non-Emergency Police:  (847) 234-2601

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