Water treatment and delivery process
Learn how we bring drinking water from the river to your tap.
The treatment process
Softening
- We remove 65,000 pounds of hardness from our water each day.
Filtering
- We filter it at one of our two plants.
- The Fridley plant uses granular activated carbon filters.
- The Columbia Heights plant uses ultrafiltration membranes.
Disinfecting
- We disinfect it with chlorine.
- This helps water maintain its quality as it moves through our distribution system.
Finishing
- A corrosion control additive keeps lead and copper from dissolving into the water.
- Fluoride — Helps prevent tooth decay.
Storing
- We store water in large reservoirs before delivering it to our customers.
Testing
- This is an ongoing process.
- We perform about 500 tests every day of water in our plants and across the distribution system.
- There are three types of tests: chemical, physical, bacteriological.
The Fridley Softening Plant



Contact us
Public Works Water Treatment & Distribution Services
Address
4300 Marshall St. NE
Fridley, MN 55421
This building is closed to the public.