Peirce Island Wastewater Treatment Facility Upgrade Project
The City’s Peirce Island Wastewater Treatment Facility is undergoing an upgrade. This project will convert the existing primary treatment facility to a secondary treatment facility with the ability to remove nitrogen. The project began in September 2016 and will continue until 2020. Details on the construction schedule and aerial photographs and videos of the construction can be seen by Clicking Here
Pease Headworks Upgrade
The Pease Wastewater Treatment Facility will receive a new Headworks Building as part of a construction project beginning in July 2018. The Headworks Building will house equipment that provides preliminary treatment to raw wastewater entering the treatment facility. This includes removal of rags and other debris through a wastewater screen, removal of sand and other debris in a grit removal device and raw wastewater pumping to lift the wastewater to the next phase of treatment. The project will also include new odor control system for the entire wastewater treatment facility. This will be done by incorporating two new carbon odor control system (carbon vessel, fans and ductwork); one system for the septage receiving, headworks and primary clarifiers and a second system for sludge storage and processing. Construction will take place over two construction seasons.
Lafayette Road Pumping Station Upgrade
The Lafayette Road Pumping Station is the City’s 3rd largest wastewater pumping station and serves the southern portion of the City. The station will be receiving a full mechanic equipment replacement. This project will address station reliability by replacing all the mechanical components and will include modifications to the esthetics of the station. The project was bid in March 2017. Construction is anticipated to begin in May 2017 with project completion in early 2018.
Proposed Pump Station Rendering from Lafayette Road Looking North
Fleet Street Reconstruction
This project includes the reconstruction of Fleet Street from Hanover Street to Court Street. This work will include roadway reconstruction, replacement of sidewalks, utility work including new storm drains, sanitary sewers, and water mains. The planning for this work will include planning for utility corridors and sewer separation in the Fleet Street area extending to Market Square and to Maplewood Avenue.
Union Street Reconstruction
This project includes the reconstruction of Union Street from State Street to Middle Street. This project is part of the City’s continued sewer separation to reduce combined sewer overflows. The work will include roadway reconstruction, replacement of sidewalks, utility work including new storm drains, separate sanitary sewers, and water mains. The planning for this work will include an evaluation of the alignment for new drainage down Middle Street. This will provide an outlet for the stormwater discharge.
Infiltration/Inflow (I/I) Study and Private Inflow Program
The City initiated a sewer system infiltration/inflow study and private inflow program in the spring of 2015. The infiltration/inflow study will identify sources of groundwater and rain water entering the sewer system outside of the few remaining un-separated sewer areas downtown. Infiltration is groundwater that enters the sewer system through leaking manholes and cracked or broken pipe, while inflow is both stormwater and groundwater that enters the sewer system through direct connections including sump pumps, basement drains, yard drains, catch basins and roof downspouts. The first phase of work included measuring wastewater flows in the sewer system to identify locations of excessive infiltration and inflow. The second phase of work included additional investigations to identify the specific source of infiltration and inflow and was completed summer of 2017. A report was developed and provided a set of recommendations for sewer rehabilitation and/or replacement and for other projects to remove extraneous flow. The last phase of the study will include smoke testing of the sewers in summer 2018.