BOSTON—December 1, 2022—The next is a public well being warning associated to a current sewage discharge, also referred to as a mixed sewer overflow (CSO). State laws require native public well being departments to offer discover to the general public when these discharges could create a danger to public well being, together with when a discharge lasts for greater than two hours.
Massachusetts Water Sources Authority Outflow MWR203, situated within the Higher Inside Harbor, upstream of North Washington St. Bridge, skilled a handled discharge or overflow beginning on November thirtieth at 8:20pm, creating a possible public well being danger. This overflow ended at 10:30pm and this advisory will expire 48 hours after the overflow has ended. This information is preliminary and could also be revised. Test the Massachusetts Water Sources Authority web site right here for present updates about this discharge. This occasion could doubtlessly have an effect on waters in Boston Inside Harbor.
The general public is suggested to keep away from contact with affected water our bodies for no less than 48 hours after a sewage discharge or overflow, throughout rainstorms, and for 48 hours after rainstorms finish, resulting from elevated well being dangers from micro organism or different pollution related to city stormwater runoff and discharges of untreated or partially handled wastewater.
A mixed sewer overflow happens when a big storm overwhelms the mixed sewerage system inflicting rainwater to combine with wastewater and discharge to a close-by water physique. This prevents sewage backups into properties and companies.
Extra details about CSOs and public well being is offered at www.boston.gov/cso.