Water Infiltration Study May 27-28

The Town of Whitefield has hired Wright-Pierce to conduct sewer system investigations to identify sources of infiltration and inflow within the Town’s sewer system.

“Infiltration” is groundwater that enters the sewer system through defects in pipes or manholes, typically during spring runoff or periods of high groundwater. Infiltration may also occur where sewer lines are located within or near wetlands and water bodies.

“Inflow” is rainwater or surface water that enters the sewer system through improper direct connections such as roof drains, foundation drains, trench drains, catch basins, or private sump pumps.

Reducing excess infiltration and inflow is important because additional flow can reduce the capacity of the sewer system and increase operational costs at the Town’s wastewater treatment facility. Every gallon of unnecessary water entering the sewer system must be treated, resulting in higher operating and maintenance expenses for the Town.

Beginning this week, Wright-Pierce and its subcontractor will conduct:

• Nighttime flow measurements
• Daytime manhole inspections

This work will involve opening sewer manholes located within streets and utility easements. No work inside private buildings is required. However, if manholes are located within easements, field crews may need temporary access to private property, including yards and parking areas. No excavation is anticipated as part of this investigation. All personnel will wear identifying clothing and use clearly marked vehicles.

If you have any questions, please contact the Town of Whitefield at (603) 837-2551.

The Town appreciates your cooperation and assistance with this important infrastructure initiative.