Bid guide
How to bid on on-call environmental consulting for Denver International Airport
What Denver International Airport is buying
The City and County of Denver Department of Aviation seeks proposals for five years of on-call environmental consulting services for Denver International Airport (DEN). The work includes support for stormwater and wastewater permit compliance, permit updates, environmental corrective actions, and related program documentation.
Other areas include storage tank requirements, PFAS programs, hazardous waste management, spill prevention, and spill response. This RFP may suit consultants with relevant environmental regulatory and technical experience, including knowledge of Colorado water quality programs.
Key dates and the deadline
The RFP was published October 14, 2026. Questions are due October 29, 2026. Proposals are due November 5, 2026, at 4:00 PM ET.
Submit your response through BidNet Direct, or as the notice directs, before the closing time. Allow time to complete the portal steps and confirm your submission.
Who this opportunity may suit
This opportunity is relevant to environmental consulting firms that can support airport environmental compliance programs. The described work spans stormwater and wastewater permits as well as storage tanks, PFAS, hazardous waste, spill prevention, and spill response.
The solicitation calls for comprehensive knowledge of Colorado water quality programs and applicable local, state, and federal environmental regulations. Consider whether your team’s experience matches the range of services before investing time in a proposal.
How to access and respond
Click “View original source” to open the solicitation on BidNet Direct. The title and dates are public; sign in with a free BidNet Direct vendor account to view the full notice, documents, and addenda.
Submit your response through BidNet Direct, or follow the submission method stated in the notice. Check the listing for addenda and any instructions before submitting.
Prepare a clear, relevant proposal
Organize your response around the work described in the RFP. Explain how your experience relates to stormwater and wastewater permit compliance, corrective actions, and the other environmental program areas listed.
Describe your approach to keeping permit processes, plans, procedures, and documentation current. Check the solicitation documents for required forms and response instructions, and use the question period by October 29 to seek clarification on points that affect your proposal.
See the live bid — deadline, agency details, and how to respond
Dates and requirements can change via addenda; always verify on the bid page and at the original source before responding.
View this bid on BiddingSimpleThis guide was prepared by BiddingSimple from the solicitation’s public posting. It is not official guidance from City and County of Denver Department of Aviation; the original posting controls.