Project Spotlight: Town of Bristol WWTP

The Town of Bristol is partnering with Commonwealth Engineers and Crosby Construction to replace their 1970s-era Wastewater Treatment Plant (WWTP) with a new 3-basin Sequencing Batch Reactor (SBR). The project will include a new administrative building onsite, headworks, UV, and post-aeration. Commonwealth designed the WWTP to accommodate a future 25% expansion by adding a fourth SBR basin.

Comprehensive improvements at the existing WWTP site and three lift stations were designed to accommodate both current flows and future anticipated flows. Provisions were included for expanding the SBR WWTP up to 1 MGD in the future and for grit removal and future tertiary filters. Replacements at Lift Stations 1, 3, and 8 were designed along with corrosion control at Lift Station 10. Remote monitoring upgrades were added for all system lift stations.

The preliminary engineering report (submitted before design) evaluated the capacity and condition of the existing wastewater treatment plant and collection system. Projected growth areas and their impact on the collection system and the Wastewater Treatment Plant (WWTP) were evaluated and targeted improvements were determined. Each unit process within the aging WWTP was evaluated for the potential to rehabilitate or the need for replacement. Each alternative was evaluated for constructibility, ease of operation, and cost-effectiveness. The selected project was submitted for funding through the Indiana Finance Authority.

For more information on this project, contact Amy Mendoza, PE.