Fire Hydrant Flushing - City Wide

The Collinsville Fire Department will be conducting fire hydrant testing throughout the city. For a list of current locations you can visit the Fire Department's Facebook page If your water runs and is a brownish color, this is why. Please just let your water run until it runs clear. We encourage you to not do any white loads of laundry during this time.

Water Department

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Water Account Online Payments

Click the link above to pay your water bill online.

If you have any questions regarding your bill or the amount due, please contact the Finance & Water Billing Department at 618-346-5200, Option 1


The City of Collinsville's Water Department is a full service utility of the City. It has the responsibility for:

  • Pumping water out of the ground
  • Sending water to the treatment plant
  • Treating water to the highest quality standards
  • Testing water
  • Delivering water to homes and businesses
  • Tapping water mains for new water services
  • Repairing water main breaks
  • Assisting customers to troubleshoot internal water problems
  • Staffing the water plant 24 hours a day, 7 days a week

New Water Plant 2019

Groundbreaking Ceremony 2017

Ground Breaking Ceremony 2017 (dup)

Updated on 05/14/2019 3:02 PM

Collinsville Water Plant 2016

The City of Collinsville is building a new Water Plant to replace the 50 year old current facility.  Construction is expected to begin spring 2016.

Water Plant 2016

Updated on 04/25/2019 2:47 PM