When the Corry Municipal Authority faced repeated wastewater treatment plant overloads driven by wet weather flows and hauled-in waste, B&N was engaged to help the community define a clear, compliant and sustainable path forward.
B&N supported the Corry Municipal Authority through both long-term planning and detailed design to address capacity, regulatory and operational challenges at its wastewater treatment plant. The effort began with development of an Act 537 Plan, which was triggered by observed organic overloads at the existing facility. While short-term corrective actions were identified, the planning process ultimately demonstrated that new treatment facilities were required to meet current and future needs.
Comprehensive Planning to Support Informed Decisions
B&N led the preparation of the Act 537 Plan, providing the technical foundation needed to evaluate system improvements and guide investment decisions. Services included:
- Physical and demographic analysis of the service area
- Evaluation of sanitary collection system needs
- Assessment of growth and development opportunities
- Identification and evaluation of alternatives to upgrade or replace the existing WWTP
- Coordination with US Environmental Protection Agency, Pennsylvania Department of Environmental Protection (PA DEP) and PennVest to support regulatory compliance and funding considerations
The plan, completed in 2023–2024, established a clear justification for construction of a new wastewater treatment facility.
Designing a Modern, High-Capacity WWTP
Building on the approved planning framework, B&N advanced the design of a new WWTP to replace the existing Rotating Biological Contactor (RBC) facility. The new plant increases hydraulic capacity from 3.5 to 4.5 MGD and organic capacity from 2,700 to 5,000 pounds of Biochemical Oxygen Demand (BOD) per day, supporting compliance with stringent NPDES permit requirements.
Key design features include:
- New headworks with mechanical screening and vortex grit removal
- Activated sludge treatment with anaerobic and anoxic zones for nutrient removal
- Secondary clarification and tertiary disc filtration to meet TSS limits
- UV disinfection and post-aeration
- Aerobic digestion and sludge dewatering with a belt filter press
- Integrated electrical, instrumentation and control systems for continuous monitoring
- Demolition of existing treatment processes following successful startup
Delivering Long-Term Community Value
Together, the planning and design phases position Corry Municipal Authority with a reliable, scalable wastewater treatment solution that supports environmental compliance, operational resilience and future community growth.