Specifications include, but are not limited to: Des Moines Water Works is requesting proposals from qualified consulting engineering firms licensed in the state of Iowa to assist in selection of a new variable frequency drive and preparation of plans and specifications for installation of that drive on a high service pump at the Fleur Drive Water Treatment Plant. The intent of this project is to increase operational flexibility by installing equipment capable of adjusting the speed of at least one Fleur Drive high lift pump. The general scope of services includes evaluation of the existing high lift pumps and motors, preparation of procurement documents for new equipment, and preparation of construction plans and specifications for installation of new equipment.