There are three Aeration Basins, two with a capacity of 150,000 gal/day and one with 300,000 gal/day.

The purpose of these basins is to biologically break the sewage.               

For microorganisms to perform their functions they must have a constant rate of "food" (sewage) input, plus oxygen. This must also happen at a reasonable temperature and correct acid/base (pH) balance.

Oxygen is supplied from air by mechanical aeration (stirring) devices              

The output of Aeration Basins flows into clarifiers.