Anne Arundel County officials say they see a way out of a sudden development freeze around BWI, if they can strike the right deal with neighboring jurisdictions to squeeze out more sewer capacity.
The county’s development moratorium, declared in late February, has stalled new projects in parts of northwestern Anne Arundel while staff scrambles to prevent wet-weather overflows into the Patapsco system.
County Slams the Brakes on New Sewer Hookups
Anne Arundel's Department of Public Works ordered an immediate moratorium on capacity allocation approvals for any new development in the Baltimore City Sewer Service Area, suspending new building and tenant fit-out allocations except for prioritized infill lots with failing septic systems, according to the Anne Arundel County Department of Public Works. The notice says the county is still within its average daily flows but has blown past critical peak-flow limits on lines that feed the Baltimore County Patapsco interceptor and Sewage Pumping Station.
Why the Cutoff Happened
County engineers point to aging pipes and big spikes in inflow and infiltration during storms that pushed peak volumes above limits set by multijurisdictional agreements, creating a bottleneck the county cannot fix on its own, as reported by CBS Baltimore. The affected service area includes Hanover, Linthicum Heights, Pumphrey, and parts of the BWI corridor, officials said.
Projects Put in the Holding Tank
The moratorium has effectively put development already in the pipeline on ice. County staff have flagged about 18 projects that will need new hookups before they can move forward, according to the Bay Journal, as cited by Baltimore Brew. Projects that already had valid sewer allocations are still allowed to proceed, but no new approvals will be granted until additional capacity is secured or the moratorium is revised.
Negotiations and Short-Term Workarounds
County leaders say they are in active talks with Baltimore County and Baltimore City to buy a bit more breathing room on capacity. They are also looking at interim fixes such as purchasing spare capacity from regional partners or trucking wastewater to other treatment plants, according to The Banner. County Executive Steuart Pittman told The Banner he was “optimistic” about the negotiations, and DPW Director Karen Henry said officials “have not given up” on securing more room in the system.
Engineering the Long Game
At the same time, the county is pressing ahead with a Wastewater Strategic Plan to reroute flows to the Patuxent River and Cox Creek treatment facilities, a planning and construction effort the DPW says could take at least five years. The DPW notice says a diversion study is already underway and that design work and construction will demand significant time and investment before the moratorium can be fully lifted, per the Anne Arundel County Department of Public Works.
Legal Fine Print Complicates the Fix
Any solution has to navigate long-standing consent decrees and shared agreements that cap how much wastewater neighboring jurisdictions can accept, a key constraint behind the county's emergency move, according to reporting in the Bay Journal via Baltimore Brew. The Bay Journal notes the Patapsco plant already handles tens of millions of gallons per day and has limited spare capacity that regulators insist the city manage carefully to avoid overflows.
What Developers and Residents Should Expect
For now, projects that secured sewer allocations before the moratorium are allowed to keep moving, while newer proposals will sit tight until officials find more capacity or change the rules, county leaders say. The DPW and county executive have promised regular updates as negotiations continue and the long-term planning work advances, according to CBS Baltimore.
