City of Lynnwood Wastewater Treatment Plant Projects Update March 14, 2016 City of Lynnwood Washington sent this bulletin at 03/14/2016 12:47 PM PDT Lynnwood Wastewater Treatment Plant Updates Staff at the Lynnwood Wastewater Treatment Plant and the Lynnwood Fire Department will be training on Wednesday, March 16, 2016. We apologize for any disruptions this may cause. Visit the City Wastewater Treatment Plant page for updates on projects and work at our Wastewater Treatment Plant.