Financial support provided by the New Hampshire Estuaries Project (NHEP) to the City of Portsmouth helped with the cost of installing a new sewer line at Oxford Avenue that replaced the on-site subsurface disposal systems (septic systems) for fourteen homes. The homes border the Great Bog and Pickering Creek watersheds. The construction occurred during the autumn of 2004.
New Hampshire Estuaries Project
Landry, Natalie and Rice, Peter, "Oxford Avenue Sewer Extension Project in the City of Portsmouth" (2005). PREP Reports & Publications. 229.