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Page Background

Mayo Service Area Capacity Expansion

Project Background:

Anne Arundel County studied several different capital project alternatives to increase the wastewater treatment capacity and lift the related development moratorium for the Mayo-Glebe Heights service area. All alternatives had to comply with the Maryland Department of Environment’s (MDE) new Enhanced Nutrient Removal (ENR) treatment standards by January 1, 2017.

The MDE-approved selected alternative requires construction of a pipeline to pump wastewater from the Mayo area to the Annapolis Water Reclamation Facility (WRF) for ENR treatment. When pipeline is completed, the Mayo WRF will be decommissioned and converted into a regional sewer pumping station. After completion of overall project,
the related development moratorium will be lifted.

  • Comply with the pollutant load requirements of the State of Maryland Bay Restoration Fund legislation.
  • Improved water quality in local waterways and the Chesapeake Bay.
  • Mayo-Glebe Heights development moratorium to be lifted when project is completed and the wastewater treatment capacity is expanded.
Project Manager:
Sharon Cole
Project Investment:
$29 million
Notice to Proceed:
March 2014
Completion Date:
December 2016
Project Updates:

***Project Update for Week of May 22, 2017***


The pipeline between the Mayo WRF and the Hillsmere library has been completed.  The drilled portions between the library and the Annapolis WRF have also been completed.  Connections between the drilled portions are expected to be finished by the end of July. 

After testing and start-up, the new pipeline is expected to be operational in August.  


Recent Public Meeting Presentations

August 17, 2016 Annapolis Area Public Meeting Presentation at Quiet Water Park

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