Southern New Hampshire Regional Water


The Southern New Hampshire Regional Drinking Water Line Project is a collaborative effort by public and private water entities that involves the development, construction, and operation of infrastructure that will interconnect the water systems of Manchester, Derry, Salem, Windham, Atkinson, and Plaistow. The objective of the project is to address current and future drinking water concerns related to methyl tertiary butyl ether (MtBE) contamination. Each community respectively has lost water supply sources due to contamination adding significant stress and impacts on their water needs.

The primary goal is to ensure a flow of safe and reliable water source that provides potable water to and through the aforementioned communities to meet the needs of the water systems and create reliability and sustainability for the present and future.

The Town has entered into a Memorandum of Understanding with the respective parties to work collaboratively to see the project through including the Southern Interconnection Agreement for purchase and sale of water. The Town is actively engaged in engineering services and project construction with Weston and Sampson all paid by the New Hampshire Department of Environmental Services.

General Information

  • Lead Department: Municipal Services Department - Engineering Division
  • Project Manager: Lyndsay Butler, Project Engineer
  • Design Engineer: Weston and Sampson Engineers, Incorporated
  • Funding: New Hampshire MtBE Settlement Funds and the NH Drinking Water and Groundwater Trust Fund (DWGTF)


This project is complete.