Two Rivers Utilities

Two Rivers Utilities

Close: Mar 18, 2026

Replacement of the west aeration blower header piping at the long creek wastewater treatment plant. 1. Install erosion control devices 2. Construct replacement header and supports to the maximum extent possible without impacting the existing aeration system. 3. Excavate and expose existing pipe. Identify tie-in location. 4. Prepare for night shutdown. 5. Demolish existing blower discharge piping to the vertical pipe sections on the out of service blower(s) in the blower building. Keep vertical pipe in place. Keep discharge piping for in service blower(s) in place. Tie-in new header to out of service blower(s) in the blower building. 7. Shutdown the active blowers for yard tie-in connection. 8. Cut and remove existing pipe at yard tie-in. Install coupling and dip bend and connect with above grade header. Simultaneously, demolish existing blower discharge piping to the vertical pipe sections on the remaining blower(s). Make connections from remaining blower(s) to new header in the blower building. Aeration shutdown shall be minimized. Pour flowable fill through existing upstream-most blower discharge pipe to completely fill existing discharge header noted on the drawings for abandonment. Flowable fill shall be visually present in all existing blower discharge pipes to confirm the piping has been filled with flowable fill. Demolish the remainder of the existing blower discharge pipes to 6-inches below the floor slab of the blower building. Complete remaining civil construction, site restoration, and remove erosion control devices.

Two Rivers Utilities

Close: Mar 24, 2026

Wastewater Treatment Plant Intermediate Lift Pump Rehabilitation Project. A. The replacement for three 90" screw pumps which provide conveyance of mixed liquor from the treatment’s activated sludge process to the secondary clarifiers. B. All of the work under this section shall be responsibility of a single contractor using products of a single supplier as further described herein. The contractor shall be responsible for a complete installation of the screw pump equipment. C. The contractor shall have extensive experience in installation of similar equipment including replacement of large diameter screw pumps, and shall demonstrate to the satisfaction of the owner that he has adequate experience, equipment, and personnel available to perform the work without interruption to plant operations.