WCWSA Regional Wastewater Treatment Plant

MRB Group worked with the Wayne County Water and Sewer Authority (WCWSA) to design a new Regional Wastewater Treatment Plant permitted for an average daily flow of 3.0 MGD. Four (4) area municipalities (the Village of Palmyra, the Town of Marion, the Town of Walworth, and the Town of Macedon) each evaluated improvements at their respective independent WWTP facilities and estimated the corresponding fiscal impacts to their communities. Due to the high costs and projected needs of each community acting independently, the participating municipalities coordinated with the WCWSA and MRB Group to collectively evaluate the feasibility and cost-effectiveness of a regional approach.

The new WWTP will be located adjacent to the current Village of Palmyra WWTP. The project includes the following major components:

• De-commissioning of the Town of Marion WWTP, including removal of lagoon sludge and de-commissioning of treatment facilities.
• A new screening facility and pump station at the Town of Marion WWTP site; and a new forcemain from the pump station to the new regional WWTP located in Palmyra.
• De-commissioning of the Town of Macedon WWTP, including the removal of certain structures and preparation of some areas for future use.
• Construction of a new screening facility and pump station at the Town of Macedon WWTP site; and a new forcemain from the pump station to the new regional WWTP located in Palmyra.
• De-commissioning of the Town of Walworth WWTP, including the removal of certain structures and equipment.
• Construction of a new pump station at the Town of Walworth WWTP, including the utilization of existing SBR tankage for flow equalization, and a new forcemain from the pump station to the new regional WWTP located in Palmyra (via the new pump station in Macedon).
• De-commissioning of the Village of Palmyra WWTP and the construction of a new 3.0 MGD regional WWTP generally including:
  • Influent surge tank through repurposing of existing tankage
  • Influent screening, grit removal, and a raw sewage pump station facility
  • Three new rectangular continuous flow Sequencing Batch Reactor (SBR) tanks with aeration and mixing systems
  • Mechanical Disc filtration systems
  • Ultra-violet disinfection facilities, post-aeration facilities, and construction of a new outfall pipeline
  • New aerobic digestion facilities using common wall construction with SBR’s
  • Belt Filter Press de-watering facilities
  • Construction of a solids handling facility to enable the future incorporation of a sludge drying system
  • Septage receiving facility
  • New mechanical, electrical, SCADA and controls, HVAC, plumbing, and all ancillary systems, piping, and equipment necessary for the proper operation of the WWTP and conveyance systems

An Intermunicipal Agreement (IMA) was executed by the participating municipalities and WCWSA, along with a supporting IMA between the Village and the Town of Palmyra. The IMA was essential to providing funding for the project’s planning, design, and construction and gave the WCWSA the ability to pursue grants and funding for the project. The project will ensure a stable sewer rate for the regional area served. The new WWTP is capable of serving the area’s foreseeable future capacity which can ensure growth opportunities for the individual communities.

Big Idea

Construct a wastewater treatment plant by replacing outdated facilities and consolidating services for more cost-efficient wastewater treatment operations