The Town of Manchester Water and Sewer Department is soliciting proposals from qualified consulting firms to develop a plan to reduce the amount of zinc in the Hockanum River Water Pollution Control Facility (HRWPCF) wastewater effluent to meet the latest National Pollutant Discharge Elimination System Permit (NPDES). The project includes reviewing effluent water quality data, drinking water quality data, and inventorying sewer customers to identify potential industrial users contributing to zinc loading. The selected firm will provide a plan to reduce zinc loading, including alternatives and recommendations for implementation. • The project requires the development of a plan to reduce zinc loading in the HRWPCF wastewater effluent. • The plan must include a review of effluent water quality data and drinking water quality data. • The selected firm must inventory sewer customers to identify potential industrial users contributing to zinc loading. • The firm must provide a list of alternatives to reduce zinc loading and recommend the best course of action. • The project requires the preparation of a system-wide mass balance analysis and a comparison of influent zinc loading and effluent zinc concentration. • The selected firm must provide a scope of services to implement the recommended alternative and prepare a final draft report.