Welcome to the Water Department

Justin Smith, Water Systems Supervisor
Phone:  (989) 224-8944, ext 235
Fax:  (989) 224-0958

For emergency sewer backups or water turn-off's please contact our on call system at (989) 224-9192 for after hours, weekends, and holidays. 


The City provides Bacti testing for drinking water, wells, spas and pools.  

Water sample bottles can be picked up at the Water Plant, 815 N. Ottawa St, St. Johns, MI  48879.  Please look for sign on Barn 1 for instructions.

Water samples are accepted Monday - Thursday, 7:00 am to 3:30 pm.  No samples are accepted on Fridays, weekends or the day prior to a holiday.

You will be invoiced for your water samples, please do not leave any money with your completed samples.  All results will be either mailed or emailed to you.

Water System

The City's Water Department is dedicated to providing safe, clean drinking water to all of its customers. St. Johns Water is produced and distributed under full compliance with the Michigan Department of Environment, Great Lakes and Energy (EGLE).  Our dedicated professional staff of state licensed Water Operators adheres to our strict standards of operation for the three divisions within our department, Water Production, Water Distribution and our State Certified Drinking Water Lab.

The City's water production system consists of five (5) wells, a 400,000 gallon ground storage tank, and two (2) high service pumps.  The production system is controlled with a SCADA system which allows monitoring of our wells and pumps 24 hours a day 7 days a week.

The City's distribution system consists of a 500,000 gallon elevated tower, 56 miles of watermain and 467 fire hydrants.

The City's state certified drinking water lab not only allows us to process our own required bacti samples but allows us to process samples for many smaller communities within Clinton and Gratiot counties as well as excavating companies, water well companies and real estate agents.

The water department distribution and lab staff ensure that all new construction watermains are installed, disinfected and sampled according to EGLE and City of St. Johns standards before they are put into operation.  Ensuring that all customers will have safe drinking water.  

Fire Hydrant Flushing

The City of St. Johns Water Department personnel flushes all fire hydrants in the City. The purpose is to insure that the hydrants are operable and also to clean the water mains of rust and sediment that develops over a period of time. During the process the water could become slightly colored; however, it should clear up shortly after the flushing. Flushing of the hydrants is done in spring and fall.


Setting up your water softener?

The City of St. Johns water contains 26 grains per gallon or 444 parts per million of hardness.  

Optimal softening should be 7 grains per gallon or 120 parts per million, if levels are any lower, water may become corrosive to your homes plumbing and fixtures. If you should want your water tested for hardness after setting up a new softener, please contact the City of St. Johns Water Department for an appointment to bring in a water sample and for pricing.

Miss Dig

Before you dig - Call MISS DIG at 1-800-482-7171

Water, sewer, natural gas, electric, cable, fiber optic and other service lines are buried underground. State law requires that you call MISS DIG at 1-800-482-7171 at least three (3) working days before starting any project that involves digging.

MISS DIG will notify the utilities in your area, who will mark the location of the underground lines with flags or paint - for free - so you can avoid them.

Some of these lines may not be buried very deep, so even if you are just planting a tree or putting in a mailbox post, it's important to call.

If you will be digging anywhere near a marked area - especially if you are using power equipment - use a shovel and hand dig to expose the lines. This will prevent emergencies and unnecessary service interruptions to you and your neighbors.

Safe Drinking Water

The Michigan Department of Environmental Quality has primary enforcement authority in Michigan for the Federal Safe Drinking Water Act under the legislative authority of Michigan Safe Drinking Water Act.

Click on links below for further information:

Water Quality Report 2019

Utility/Street Permit

A utility/street permit must be completed prior to performing any work in the City right-of-way.  Fees may apply depending on work. Contact city offices at (989) 224-8944 for further information.

Wellhead Protection Information