1-WWTP Biosolids Modernization Project - Specs Volume II.pdf

This document is a government procurement file for the City of Sumner, Washington's Wastewater Treatment Plant (WWTP) Biosolids Modernization Project (CIP 21-17). The project involves procuring a biosolids drying system through a competitive bid process, with sealed bids due on April 2, 2024, at 2:00 p.m. The City is seeking a thermal drying system capable of processing 2,050 wet pounds per hour of anaerobically digested sludge, producing a Class A biosolids product. The system will be an indirect thermal paddle dryer designed to operate with natural gas and digester gas, with a design evaporation rate of 1,640 pounds per hour. The contract includes preconstruction services, equipment supply, construction services, and post-construction services, with the system supplier responsible for design, fabrication, testing, and delivery of a complete biosolids drying system.

The estimated project cost range is between $3,000,000 and $3,500,000, with a bid deposit requirement of 5% of the proposal price. The system must meet specific performance guarantees, including producing a final product with 92% total solids, 95% of material between 0.5-6.0 mm size, and specific heat energy consumption limitations. The contract includes provisions for performance testing, with potential liquidated damages if the system fails to meet specified performance criteria. The project is part of the City of Sumner's broader wastewater treatment plant modernization efforts, with the goal of improving solids handling and treatment processes. The system supplier will be responsible for installation supervision, commissioning, and providing warranties, with the expectation of delivering the system by November 2025 and achieving final acceptance by September 30, 2026.