Public Utilities

The City of Ionia Public Utilities Department oversees water supply, water distribution, and wastewater treatment operations. Our outstanding city staff is highly trained, and our facilities are regularly used for tours and training by the State of Michigan because of our commitment to excellence.

Homeowner Utility Responsibility

Clarification for homeowners on maintenance responsibilities for water and sewer lines is provided in the Water and Sewer Responsibility Fact Sheet (PDF). If you have questions on these responsibilities, contact the City's Department of Public Utilities. 

Water and Sewer Rates

Our rates continue to be among the lowest in Michigan. A utility bill will be sent to you quarterly, every three months. Your bill is broken into sections to assist you with appropriately tracking costs. Effective July 1, 2025, the utility bill rates are as follows:

Commodity Charge

City Charge Per 1,000 Gallons

  • Water, $4.60
  • Sewer, $4.90

Township Charge Per 1,000 Gallons

  • Water, $6.90
  • Sewer, $4.90

Facilities Maintenance Charge

The City charges a facilities maintenance charge which assists in covering the cost of retiring outstanding debt on the water and sanitary sewer systems. These charges are billed based on a residential equivalent unit (REUs) with one REU equaling 22,000 gallons of usage.

City Charge (Per REU)

  • Water Facilities, $34.00
  • Sewer Facilities, $45.00

Township Charge (Per REU)

  • Water Facilities, $51.00
  • Sewer Facilities, $45.00

Fire Suppression Charge

The city levies a $525 fire suppression system charge per quarter for commercial customers with internal sprinkler fire suppression systems. This charge covers the cost of the city's cross-connection program and the readiness to serve charge for the water service line that feeds the sprinkler fire suppression system.

Hydrant Flushing

Each spring and fall, staff flush all 579 fire hydrants across the community’s 68 miles of underground water mains. Hydrant flushing helps remove iron sediment from the water system, improving overall water quality. Crews typically flush each hydrant for about 30 minutes, or until water quality parameters are met. The full flushing program takes approximately six weeks to complete, depending on weather conditions. The process uses about 15 million gallons of water annually to clean the mains. To reduce impacts on traffic and businesses, staff also conduct nighttime flushing in high-impact areas such as major highways, retail corridors, school zones, and business districts.

View the Spring 2026 Hydrant Flushing Schedule (PDF).

Wellhead Protection Program

The City is committed to protecting the groundwater that supplies your drinking water. Our water system draws from nine groundwater wells located on the north side of the City. In 2003, the State of Michigan conducted a source water assessment in accordance with the federal Safe Drinking Water Act to evaluate our system's susceptibility to contamination. Using a seven-tiered scale ranging from "very low" to "high," the assessment considered factors such as geologic sensitivity, water chemistry, and potential contaminant sources. Our water source was determined to have a "high" susceptibility rating, which means we must take proactive steps to safeguard it. To do so, the City participates in Michigan's voluntary Wellhead Protection Program. The City is currently updating our Wellhead Protection Plan. This effort identifies the areas contributing groundwater to our wells, evaluates potential sources of contamination, establishes management strategies to reduce risk, and strengthens public education and emergency planning. By planning and working with local, county, and state partners, the City is committed to protecting our groundwater and ensuring a safe, reliable drinking water supply.

Additional Resources:

Water Service Line Inspections & Lead Safety

  1. Why This Matters
  2. What We Have Done
  3. What to Expect During Inspections
  4. How You Can Help
  5. More Information

To ensure safe, clean drinking water, the City of Ionia inspects and replaces galvanized and lead water service lines. Michigan’s Lead and Copper Rule requires the City to take these steps to reduce potential lead exposure in drinking water.