Client: ORD Sewer Authority
Year Completed: 2008
Project Cost: $17,000,000
The ORD Sewer Authority selected GD&F to design the Osceola Mills wastewater system. The $17 million project serves multiple municipalities in the upper Moshannon Creek basin.
The system eliminated one of the largest “wildcat” sewer systems remaining in Pennsylvania and included these elements:
- Wastewater collection system consisting of 152,700 ft. of 6″-15″ gravity sanitary sewer, 788 manholes and clean-outs and 5 individual grinder pumping units for 1,250 residential and commercial connections
- Wastewater conveyance system consisting of five (5) sewage lift stations with 5,130 ft. of 4″ force main
- Wastewater treatment facility consisting of a 400,000 GPD Intermittent Cycle Extended Aeration System (ICEAS). The system (Sanitaire) uses continuous activated sludge technology with intermittent systems operation. Activated sludge is alternately aerated and mixed over a number of pre-determined cycles. Solids liquid separation occurs during a settling phase of the cycle. After the settling phase, treated effluent is decanted. All physical treatment and process kinetics occur in a single reactor. The system is adaptable for later nutrient removal conversion
- Plant features include ultraviolet channel disinfection system, control building (with garage, laboratory, conference room and administration area), aeration blowers, sludge processing building with centrifuge, chemical feed system, SCADA control system, electrical facilities and emergency generator
- The sewer service area includes Osceola Mills Borough and Decatur Township, Clearfield County and the Village of Sandy Ridge, Rush Township, Centre County
The Pennsylvania Infrastructure Investment Authority provided a grant/loan funding package for the project. CDBG money from Clearfield and Centre Counties provided tap fee assistance to low income residents.
GD&F provided all professional services including planning, engineering, design, bidding, construction administration, construction inspection and system start-up and commissioning. The project was done on-time and under budget.