The City of Roseville (hereinafter “City”), is soliciting proposals for the design and engineering services during construction (ESDC) for a Design-Assist project. The project is for rehabilitation of the existing primary/headworks biofilter and odor collection system at the Dry Creek Wastewater Treatment Plant (hereinafter “DCWWTP”). This will be a competitive negotiation process. Qualified individuals, firms, contractors, consultants or entities (hereinafter “Consultant(s)”), that meet the requirements set forth in this Request for Proposals (hereinafter “RFP”), and are capable of providing the services requested are encouraged to participate.