27CRDLWBMBALM-0001 - Alum Applications at Casey Lake (Tama Co.)

The Iowa Department of Natural Resources seeks a qualified contractor to perform an alum (liquid aluminum sulfate) and sodium aluminate treatment program at Casey (Silver) Lake in Tama County. The work involves mobilizing equipment, applying roughly 23,845 gallons of alum and 11,923 gallons of sodium aluminate in two dosing windows, and demobilizing after completion, all within a specified spring‑summer window. The contractor must meet environmental safety standards, provide necessary signage and site restoration, and hold the required insurance coverages. • Perform chemical treatment (alum & sodium aluminate) to inactivate phosphorus and reduce algal blooms. • Mobilize, stage, and demobilize all equipment, crew, and chemicals on site. • Conduct work between 1 April 2027 and 15 May 2027, adhering to weather and site‑access conditions. • Supply required documentation, resumes, references, and insurance certificates as outlined in the RFQ.