Water Quality & Treatment

Water Treatment

Water Treatment

Safe water fuels our entire region. That’s why Cleveland Water has a comprehensive water treatment process in place to make sure our customers have access to quality water to support their everyday lives.

Cleveland Water’s commitment to providing our customers with quality drinking water is proven through our treatment process. 

Water Treatment Tabs

Treatment Overview

Cleveland Water has a comprehensive treatment process—amongst the finest in the country—involving screens to remove large debris, rapid mix, flocculation, sedimentation, filtration, and disinfection.

Treatment Process

  • 1 2 3 4 5 6 7 8 Intake Debris Removal Rapid Mix Flocculation Sedimentation Filtration Disinfection Distribution
  • Intake

    Intake

    Raw water is drawn from Lake Erie. Intakes are located approximately 3 miles off shore where the water is cleaner.

  • Debris Removal

    Debris Removal

    Screens are used to remove fish, shells, and other large debris. Pumps propel water throughout the treatment process.

  • Rapid Mix

    Rapid Mix

    Three chemicals are added to the untreated water at a high speed. Powdered Activated Carbon helps eliminate unpleasant odors and tastes. Chlorine conditions the water for further treatment and Alum is added to help small particles stick together.

  • Flocculation

    Flocculation

    Mixing speed is gradually reduced to allow the Alum to form clumps which can be more easily removed.

  • Sedimentation

    Sedimentation

    The clumps sink to the bottom of the sedimentation basins, trapping larger organic materials.

  • Filtration

    Filtration

    Water is filtered through sand and coal removing smaller organic particles not captured during the sedimentation process.

  • Disinfection

    Disinfection

    Chemicals such as chlorine and orthophosphate are added to the water to create safe water for drinking, business and recreation. Chlorine kills bacteria and viruses and orthophosphate reduces the danger posed by lead pipes in your home.

  • Distribution

    Distribution

    Plants, towers, tanks, and water mains distribute water to 420,000 homes and businesses in Cleveland Water’s service area.

Treatment Overview

Treatment Chemicals

Powdered Activated Carbon Added to the water for absorption of organic material that can cause unpleasant tastes and odors
Alum Added to the water as a coagulant to help small particles stick together so that they can be removed more easily
Chlorine Added to the water for disinfection. It must remain in contact with the water for prescribed periods of time to ensure that bacteria, viruses, and other microbes are killed.
Fluoride Added to the water to promote good dental health
Orthophosphate Added to the water to inhibit lead corrosion of plumbing fixtures
Potassium Permanganate An oxidant that is added to the water to condition it so that coagulation and filtration can more effectively remove particulates

Water Treatment Unit Processes

Screens Remove fish, shells, and other large debris
Pumps Propel the water through the treatment process at a controlled rate
Rapid Mix Quickly distributes treatment chemicals through the water
Flocculators Mix the treatment chemicals with the water at a controlled rate in three stages of decreasing energy to clump the smaller particles together
Sedimentation Basins Water moves very slowly through the Sedimentation Basins to allow large particles to settle down to the bottom and be removed from the water.
Filters Remove fine particles from the water
Finished Water Reservoir Disinfection takes place in the Finished Water Reservoir before water is distributed to customers.

Water Treatment Table

 

Raw water, taken straight from Lake Erie, is treated at four water treatment plants:
Garrett A. Morgan Water Treatment Plant

Garrett A. Morgan Water Treatment Plant

Westside in Ohio City More Information
Baldwin Water Treatment Plant

Baldwin Water Treatment Plant

University Circle/Fairfax Neighborhood More Information
Nottingham Water Treatment Plant

Nottingham Water Treatment Plant

Eastside of Cleveland More Information
Crown Water Treatment Plant

Crown Water Treatment Plant

City of Westlake More Information