Why must we treat wastewater?

The untreated wastewater contains pollutants and pathogenic organisms that are unsafe for people, animals, and aquatic life-forms. The wastewater is treated to a purification level set by the Illinois Environmental Protection Agency (IEPA) before it is released to the Fox River. Our facility's treatment exceeds the level set by the IEPA. This in turn further reduces the impact on the Fox River and downstream users.

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1. Why must we treat wastewater?
2. What happens to all the solids the wastewater facility receives?