Williamstown will have to address inflow and infiltration in the town's sewer lines, Department of Public Works Director Timothy A. Kaiser told the Select Board on Monday.
The town has been issued an administrative consent order from the Massachusetts Department of Environmental Protection to comply with federal standards for monitoring and reporting of inflow an infiltration, the term for groundwater and storm-water inadvertently entering a dedicated sewage line.
The problem with infiltration is that it could potentially overwhelm a solid waste treatment facility, something that did happen "routinely" when Kaiser started with the town nearly four decades ago, he said.
Kaiser said the town has made progress over the years to reduce its inflow and infiltration problem.
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