PORTLAND PRESS HERALD • July 24, 2020
Nearly 4 million gallons of partially treated wastewater was discharged into Casco Bay last weekend during a power failure at the East End Wastewater Treatment Plant, the Portland Water District said Friday. The discharge prompted the city to close the popular East End Beach from Sunday to Tuesday while tests were done to determine that contamination levels were not a threat to public health. The amount of wastewater discharged was not immediately known because the power failure interfered with the plant’s computer system.