My tap water

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My tap water

How is my water cleaned

Ottawa's cleaning steps to water

Eighth stage cleaning

Fluoride is added to prevent dental cavities.

Fluoridation

Seventh stage of cleaning

Chloramine (a mild disinfectant) is added to keep the water safe as it travels throughout the distribution network.

Secondary Disinfection

Sixth stage of cleaning

The water’s pH is adjusted to protect water pipes and household plumbing from corrosion.

pH Correction

Fifth stage of cleaning

Chlorine is added to get rid of any remaining microorganisms.

Primary Disinfection

Fourth stage of cleaning

Water then flows through several filters removing 99.99% of fine particles.

Filtration

Third stage of cleaning

Heavy particles sink to the bottom of the settling tank and clear water is collected from the top. Approximately 95% of the impurities are removed at this stage.

Sedimentation

Second stage of cleaning

Small impurities such as organic matter, algae, and bacteria are captured.

Coagulation & Flocculation

First stage of cleaning

Ottawa River water enters the treatment plant through a large intake pipe with a screen that removes objects such as weeds or fish.

Intake

Where is my water cleaned

Possible places my water is cleaned by

Britannia Water Purification Plant

Lemieux Island Water Purification Plant

Are there threats to the Ottawa river/our water supply

There are threats to species that live in the water

habitat threats including the introduction of dams, urban development, and pollution from residential and industrial sources have resulted in population declines for several species

there are no threats

where does my water some from

Ottawa Drinking Water System

Ottawa River

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