Water Reuse Feasibility Study Engineering Services

The City of Derby, Kansas is seeking qualified engineering firms to conduct a water reuse feasibility study and develop pilot concepts for wastewater reuse. The selected vendor will be responsible for assessing existing conditions at the city's wastewater treatment plant and providing recommendations for direct potable reuse of the effluent stream.

Key tasks include conducting comprehensive data collection and evaluation, such as water quality sampling and analysis necessary to inform 30% design plans for a pilot study. The scope also involves evaluating raw and finished water quality data and reviewing relevant design documents. The contractor will be expected to compile system mapping, which includes raw and finished pipelines, reservoirs, storage facilities, and details on size, pressure, and locations.

In addition, the vendor must identify suitable treatment technologies, address waste stream disposal, and develop two alternative pumping and conveyance strategies. Technical Memorandums (TMs) summarizing each alternative and a conceptual pilot recommendation for the preferred option are required. A final TM will summarize the pilot approach, including the Opinion of Probable Construction Cost (OPCC) and operational and testing needs. All questions regarding this RFP must be submitted by February 20, 2026.