Mayor Barrett requests Robert E. Ward, Director of Water/Wastewater, to provide an update on the 42” force main sewer break
Minutes
Robert Ward and Mayor Barrett addressed the council. Presented a PowerPoint presentation. He provided an update on June 26th force main failure and emergency response efforts. The failure of the 42” force main resulted in untreated wastewater discharge into the Merrimack River, however, drinking water remained safe and emergency measures were implemented immediately. A temporary bypass pumping system was installed and is operating successfully while inspections, evaluations, and repair planning continue. Contractors are assessing repair and replacement options, with the bypass system remaining in place until permanent repairs are complete. He noted that inspections identified two pipe failures, including a damaged steel cylinder and areas showing exposed steel wires and corrosion. He stated as of July 1st there was no longer significant discharge to the river and normal sewer service had resumed. He stated the city has also submitted a required force main assessment plan to EPA and DEP and is reviewing long term resiliency improvements to help prevent future sewer overflow events. Vice President Michitson commended everyone involved for their swift response in restoring service during the major infrastructure failure. He also stated he is concerned with the risks associated with aging and vulnerable infrastructure and motioned to refer the matter to the Planning and Development Committee. The motion directs the committee to work with administration and appropriate departments on an initial risk-based assessment of city’s critical infrastructure, beginning with the wastewater and drinking water systems. He noted this is a proactive approach aligning with the Mayor’s 10-year budget/capital improvement plans and will help with future decisions. He noted that the assessment should identify critical assessments and single points of failures that could significantly impact public health, the environment, essential services and city finances. He also stated the initial phase should be reported to the City Council by the end of the year with a preliminary ranking of the highest risk and then after that provide a scope, schedule and cost for the next phase.
Councilor Basiliere stated that while the exact cause remains undetermined, research on aging sewer infrastructure suggests intense rainfall can create hydraulic pressure that bursts pipes. Councilor Rogers asked if they were leaning towards a temporary fix or replace the whole line? Robert Ward confirmed right now I am leaning towards replacing the whole line. Councilor Rogers stated we wouldn’t be able to remove the pumps until we do the major fix. If you do remove the pumps would you keep the old lines above ground for backup. Robert Ward stated no we wouldn’t. President Jordan asked about efforts from Congresswoman Trahan and Congressman Moulton to seek potential funding for improvements. Mayor reported that members of the congressional delegation are pursuing potential federal funding. She noted the outcome remains uncertain given the current congressional environment any assistance would help accelerate repairs. She is hopeful there are grant opportunities that the city could apply for.
Motion by Vice President Michitson to send to Planning and Development to work with the
Administration and appropriate departments on an initial risk based assessment of the city’s
critical infrastructure beginning with the wastewater and drinking water systems. Second by
Councilor Lewandowski
PASSED – Yeas 9, Nays 0, Absent 2 (Toohey and Diodati)