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Unofficial Notice of Invitation to Bid (NIB)
Eureka City is seeking bids from qualified and interested contractors for the following project titled, Outfall Design Services, identified under Solicitation ID: Bid# 2025-11. Work is to be performed near 4301 Hilfiker Ln, Eureka, CA 95503, USA in Humboldt County.
General Project Description
The City of Eureka is soliciting proposals for consulting services focused on the replacement of outfall diffusers and related equipment, along with inspection services for the Elk River Waste Water Treatment Plant (WWTP) outfall pipe. The project encompasses analyzing and evaluating existing infrastructure, developing design documents for maintenance and improvements, and providing support for project permitting. Key tasks for the consultant include developing a detailed inspection task list, preparing a comprehensive outfall inspection report based on findings and the 2025 Elk River WWTP Outfall Inspection Work Plan, and assisting the City with preparing draft and final permit applications.
General Bid Items
- Quantity: - Unit: - Work Item: Prepare detailed outfall inspection task list. Specifications: Include deliverables such as detailed photographs, videos, and inspection logs, based on the 2025 Elk River Waste Water Treatment Plant Outfall Inspection Work Plan.
- Quantity: - Unit: - Work Item: Prepare outfall inspection report. Specifications: Based on inspection findings.
- Quantity: - Unit: - Work Item: Permitting support services. Specifications: Prepare draft or final permit applications and application exhibits for submission by the City.
NAICS Classification
NAICS 541330 – Engineering Services (For the primary design, analysis, evaluation, and production of design documents for wastewater infrastructure), NAICS 541620 – Environmental Consulting Services (For inspection, analysis, and permitting support related to wastewater outfall integrity and environmental compliance), NAICS 541370 – Surveying and Mapping Services (As related to historical aerial data, UAV surveys, and bathymetric surveys which inform the design services)
Records and Due Date
This bid opportunity was entered into BidAmerica on December 24, 2025, and was last updated on January 31, 2026. All bids and/or proposals are due on February 5, 2026.
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Legal Disclaimer
All bidders are responsible for reviewing and verifying all official bid documentation directly from the issuing agency. BidAmerica aggregates public bid information for advertisement purposes for contractors and government agencies convenience. This Notice of Invitation to Bid is for reference purposes only and is not an official or complete representation of any documents issued by Eureka City. BidAmerica does not guarantee the accuracy, completeness, or timeliness of any information displayed and shall not be held liable for any errors, omissions, misinterpretations, or damages resulting from reliance on this summary. Contractors must obtain all official information—including plans, specifications, addenda, deadlines, submission requirements, qualifications, and bidding conditions—directly from Eureka City prior to bidding.