Washington Suburban Sanitary Commission, MD • MD • opengov

Sewer Planning Basic Ordering Agreement

Posted Jan 31, 2026Closes Mar 9, 2026Status: currentIFB/RFP Template - Goods, Services, and Professional Services

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Summary

The Washington Suburban Sanitary Commission, MD (the "WSSC"), is soliciting sealed responses for Sewer Planning Basic Ordering Agreement. Responses are to be submitted via WSSC's eProcurement Portal via https://procurement.opengov.com/portal/wsscwater PRIOR TO 2PM on Monday, March 09, 2026. Late responses will not be accepted. The Planning Division is in the process of completing updates of the sewer basin models to all-pipes versions of the models. Soon, the Planning Division will have 22 sewer models in InfoWorks ICM. All models have been calibrated using permanent flow meter data within the last 10 years. The models contain all gravity sewer pipes, force mains, and wastewater pumping stations in the sewer network. The models are used to evaluate the capacity of the sewer system to convey existing and future dry and wet weather flows. Wet weather conditions are simulated under 2-year and 10-year WSSC design storms. Future flows are developed using demographic projections provided by the Metropolitan Washington Council of Governments (MWCOG). Under this Contract the Planning Division endeavors to begin a new cycle of updates to the all-pipes sewer models using updated sewer network information and recent flow meter data.

Full description

The WSSC Water is a bi-county agency and public corporation of the State of Maryland, established in 1918 to provide water supply and wastewater services to residents and businesses in Montgomery and Prince George’s Counties. WSSC Water is among the largest water and wastewater utilities in the nation, with a network of nearly 5,900 miles of potable water pipelines and more than 5,600 miles of sewer pipelines, serving 1.9 million residents through approximately 475,000 customer accounts.

Attachments

Contact

Email:
kimberly.six@wsscwater.com
Phone:
(301)206-8994
Title:
Section Manager
Address:
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