WWTP Dechlorination and Ammonia removal Project

The Port of Tillamook Bay is soliciting bids for a Wastewater Treatment Plant (WWTP) Dechlorination and Ammonia Removal Project located in Tillamook County, Oregon. The procurement is an Invitation for Bids (IFB) for comprehensive upgrades to the existing wastewater treatment facility, with the primary objectives of improving effluent discharge quality into the Trask River. Specific project deliverables include installing a chemical de-chlorination system, implementing an aerated attached growth system to address ammonia limits, converting a gravity sewer line to a pressure sewer system, and replacing existing piping and meters. The project requires replacing 635 linear feet of 2" PVC pipe and installing 575 linear feet of 1-1/4" PVC pressure effluent pipe. Key project deadlines include a mandatory pre-bid conference on September 19, 2024, and bid submissions due by 2:00 PM on October 24, 2024. Bidders must provide bid security of at least 10% of the total bid amount and have an employee drug-testing program in place. The project must be substantially completed within 270 calendar days of the Notice to Proceed.

The contract does not specify specific set-aside designations or restrictions on vendor participation. Bidding documents can be obtained from the Engineer's office for a non-refundable fee of $100 for printed sets or $25 for digital documents. The project is funded through the Clean Water Revolving Loan Fund and a combination of local and/or private funds. Based on the bid comparison document, the engineer's estimate and contractor bids range from $1,249,245 to $1,625,750. Bidders must comply with prevailing wage rate requirements and demonstrate technical capability to install specialized equipment, including a positive displacement blower system from a manufacturer with at least 25 successful systems in operation for a minimum of 10 years. The project requires a comprehensive approach to wastewater treatment improvements, focusing on reducing chlorine residual and meeting ammonia discharge limits while upgrading the existing infrastructure.