Located in the southwest quadrant of Suffolk County, Sewer District No. 3 serves a 57 square mile area with over 950 miles of sewer lines and 14 pumping stations. LiRo provided program and construction management services for improvements to the Bergen Point Waste Water Treatment Plant, which processes the effluent from the district prior to release to the ocean outfall. The Bergen Point Wastewater Treatment Plant provided primary and secondary treatment for the removal of biological oxygen demand (BOD) and suspended solids in the wastewater flow. Since the design loading rates were exceeded for more than eight calendar months, a plan for future growth was required.
About the Project
In response to this issue, the project consisted of four individual tasks:
- Installation of a new UV disinfection system to neutralize microorganisms in the effluent, providing improved worker safety and resulting in cleaner discharge into the Great South Bay.
- 10 MGD expansion of the plant to provide additional treatment capacity. Due to the necessity of providing additional treatment capacity at the Bergen Point WWTP to accommodate areas that are adjacent to and outside the district boundaries, a 10-million-gallon-per-day expansion has been planned.
- Upgrade of the influent grit handling facility to improve operation and maintenance costs.
- Replacement of the final effluent pumps and the addition of a new pump to provided redundant capacity. The final effluent pump station at the Bergen Point Wastewater Treatment Facility conveys treated effluent through a 6½ mile outfall to the Atlantic Ocean. The final effluent pump station facility went into operation over 30 years ago and it is essential that the redundancy and service life of the facility is extended.