Wastewater Treatment Plant Improvements
The Paddock Lake, Wisconsin wastewater treatment plant could not reliably meet effluent requirements, lacked system redundancy/reliability, and could not support additional growth within the Village. The facility was both hydraulically and organically overloaded.
The facilities planning report was prepared to address the current and future needs at the wastewater treatment plant. This report provided solutions to loadings and the significant amount of inflow and infiltration (I/I) throughout the collection system. The recommended solution included new process units: influent pumps, a screen, a second oxidation ditch, two new secondary clarifiers, UV disinfection, effluent pumps and aerobic digesters and also included de-rating of the existing treatment processes and replacement of old and worn equipment. Construction began in 2011 and was completed at the end of 2012. The improved treatment plant has an average daily flow capacity of 0.8 MGD and, with future expansion, an average flow capacity of 1.4 MGD.
Collection system improvements made prior to the treatment plant improvements included over 2 miles of sanitary sewer lining. It is estimated that approximately 35% of the I/I was removed from the system. These imrovements allowed the treatment plant design to be scaled back, saving the Village money.
The collection system rehabilitation and treatment plant improvements were funded by the Wisconsin Department of Natural Resources Clean Water Fund Program. The high priority ranking assigned to this project by the DNR allowed the Village to receive principal forgiveness in the amount of $824,000 for the project. The remaining cost of the project was obtained through the Clean Water Fund Loan Program.
- 2015 ACEC-WI Engineering Excellence State Finalist Award