When do operators generally lower lagoon levels?

Lagoon levels are generally lowered in the spring due to several reasons associated with the operation and maintenance of wastewater treatment facilities. During spring, there is often an increase in inflow as snow melts and seasonal rains occur, prompting operators to manage lagoon levels effectively to prevent overflow and maintain optimal treatment conditions.

By lowering the lagoon levels in spring, operators ensure there is sufficient capacity to handle the anticipated increases in wastewater volume. Additionally, spring is a practical time for maintenance activities, aeration, and other operational tasks that may be more difficult to perform when lagoon levels are higher. This strategic timing helps prepare the lagoons for the summer months when evaporation rates increase and plant growth can enhance the treatment process.