Bid guide
How to bid on MWWTP Effluent FM Surge & Transient Design Build Services for Charles County Government
What Charles County is buying
Charles County Government is seeking a qualified design-build firm for the Mattawoman Wastewater Treatment Plant (MWWTP) in La Plata, Maryland. The project involves designing and constructing a new standpipe and associated piping to manage force main surges.
This work includes building a 40-foot diameter standpipe with a spiral staircase, platform, and overflow system. It also covers influent and effluent pipes, bypass vaults, ductile iron piping, valves, sump pumps, drainage, electrical and instrumentation work, and site restoration. The selected team will provide complete design, permitting, construction, testing, startup, and closeout services to deliver a fully functioning system.
Key dates and what happens at the deadline
This opportunity was published on July 08, 2026. The deadline for submissions is October 01, 2026, at 11:00 AM ET. All proposals must be submitted by this time.
It is important to submit your response well before the deadline to avoid any last-minute technical issues. Late submissions are typically not accepted.
Who this opportunity suits
This project is ideal for professional design-build firms with expertise in wastewater treatment infrastructure, particularly in designing and constructing standpipes, piping systems, and related electrical and instrumentation components. Firms with experience in managing complex projects from design through permitting, construction, and startup will be well-suited.
The project requires a team capable of providing complete turnkey services for a critical piece of wastewater treatment plant infrastructure.
How to respond
To access the full solicitation details, you need to visit the opportunity on OpenGov Procurement, which is the agency’s procurement portal. You will first encounter a brief security check; allow it to complete to load the project page.
Once on the project page, you will need to sign in or create a free vendor account. This account will allow you to download plans, ask questions, join the planholders list, and submit your proposal. Any addenda or updates will be communicated through OpenGov, so monitoring the portal is essential.
Practical tips for a competitive response
When preparing your proposal, clearly demonstrate your firm's experience with similar design-build projects, especially those involving water or wastewater infrastructure. Highlight your team's qualifications and past successes in managing all phases of a project, from initial design to final commissioning.
Pay close attention to all technical specifications and requirements outlined in the solicitation. Provide a detailed project plan that shows a clear understanding of the scope, including how you will manage permitting, construction, and integration of all components. Ensure your proposal addresses the specific needs for surge management and the construction of the 40-foot diameter standpipe.
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 Charles County Government; the original posting controls.