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HomeMy WebLinkAboutIllicit Discharge Elimination Summary MemoAppendix B Illicit Discharge Elimination Program Summary As of Nov. 15, 2021 Date of Discovery Description Corrective Action Date of Correction Approximate Flow Removed (gpd)  Oct 31, 06 Crushed sewer in Grant St near Hayes Lane exfiltrating to Vine Brook Repaired crushed sewer. Unknown 500  Mar 29, 07 Collapsed sanitary manhole at Valley Road easement. Reconstructed manhole to reduce wet weather overflow at North Lexington Pumping Station. Unknown During wet weather 100,000  Jun 1, 07 Sanitary sewer overflows at Colony Road caused by trunk sewer surcharging. Constructed control structure to redirect flow to underutilized relief sewer. Unknown During wet weather 50,000  Nov 21, 08 Crushed sewer in Waltham Street at Forest St exfiltrating to culverted Vine Brook Repaired crushed sewer. Unknown 500  Oct 9, 09 Building sewer connected to storm drain at 1575 Mass Ave, Municipal Police Station Building Town installed new building waste line to sanitary sewer. Unknown 1,000  Sept 2012 Deficient town-owned holding tank at Center Field playground overflows to north branch Vine Brook culvert Facility was connected to municipal sanitary sewer. Unknown 500  Aug 12, 2012 Underdrains connecting to Vine Brook culvert at Sheridan and Sherman Streets. 3,400 feet CIP pipe liner installed in sanitary sewer to prevent possible source of contamination into underdrains Unknown 500  2016 Leaking sewer service in Arlington infiltrated into nearby Lexington drain line. Town of Arlington repaired sewer service. Late 2016 100  Aug 15, 2017 Sewer main was installed through invert of Drain manhole. Drain line was moved and drain manhole was sealed and converted to a sewer manhole. Dec 7, 2017 250  Dec 27th, 2018 Single family house had sewer service connected to drain line. Contractor agreed to warranty the work and repaired it. April 2, 2019 100   May 20, 2019 Recently installed handicap bathroom plumbed to drain sump line instead of sewer service. Plumber was able to correct the connection inside the building and dye testing confirmed removal. July 15, 2019 250  October 19, 2021 Single family house had sewer service connected to RCP drain in easement. (31 Fairlawn Ln) Contractor cut and capped old sewer service 1’ away from drain connection. October 20, 2021 400  January 26, 2022 Illicit discharge coming from unknown source leeching into catch basin. About 1” hole. (10 Maguire Rd driveway) Contractor grouted and patched the catch basin so there is no infiltration of the illicit. March 31, 2022 100