Wastewater Treatment Facility Improvements, City of Arlington, Minnesota
Tight site constraints and the need to maintain plant operations at all times made for a challenging project.

Wastewater Treatment Facility Improvements

City of Arlington, Minnesota

The City of Arlington needed wastewater treatment facility improvements to address the removal of phosphorus, account for increased capacity, and replace aging equipment. Because of tight site constraints and the need to keep the plant operating properly at all times, the project was challenging.

A new 47-foot diameter clarifier needed to be constructed and online before the two existing clarifiers could be taken offline for inspection and drive replacement. The upgrade included numerous equipment replacements, the addition of anaerobic and anoxic basins, new aeration basins, modifications to existing clarifiers, additional clarifier construction, biosolids storage, and electrical/control upgrades.

Bolton & Menk met with the contractor throughout all phases of the project to coordinate project timing and operations. This ensured proper wastewater treatment, as well as a quality finished project. The project provided excellent phosphorus removal and met the city's objective of prolonging the facility's design life another 20 years.