Oxford Avenue Sewer Extension Project in the City of Portsmouth: A Final Report to the New Hampshire Estuaries Project

摘要

The City of Portsmouth is actively identifying areas with failing septic systems and, where feasible and practical, extending sewer lines to replace the on-site sanitary waste disposal with sewer service. The New Hampshire Estuaries Project funded a previous sewer extension project in Portsmouth on Brackett Road. The Brackett Road sewer extension resulted in the elimination of direct discharges from failing septic systems into Back Channel. This project involved construction of a new sewer line on Oxford Avenue which borders the Great Bog and Pickering Creek watersheds (Appendix A). The purpose of this project was to eliminate the existing pollution discharge of failed septic systems from the Oxford Avenue residences into the Great Bog and Pickering Brook. This was accomplished through the construction of a combined gravity and low pressure sewer system. Homeowners were responsible for tying into the sewer services at the edge of their property line.