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Post Falls Wastewater Treatment Plant Improvements - Post Falls, ID Client: Post Falls, ID Overview Rapid regional growth and strict discharge requirements required careful system-wide Master Planning and numerous upgrades of the Post Falls Wastewater Treatment Plant. J-U-B provided design, construction management, startup, and ongoing assistance as Kimball Engineering for all phases of Post Falls’ collection, pumping, and treatment systems since they were originally conceived. Post Falls operates an extended aeration oxidation ditch process with year-round biological phosphorus reduction and nitrification consistently performing to less than 0.5 mg/L. Aerobic solids stabilization, belt filter press biosolids dewatering, and ultraviolet disinfection processes are also utilized to meet its discharge requirements. With a successful design and bid process in 2008, the plant has now expanded to 4.0 mgd with full biological nitrogen removal and concrete basin capacity up to 5.0 mgd. Other recent improvements include the construction of the 4.0 cfs (2,100 gpm) capacity submersible style Idahline Lift Station with 56,000-gallon overflow basin, standby generation and carbon filter odor control. The East Seltice Force Main included 7,000 lineal feet of 20- and 24-inch pipe, one railroad bore, and two Interstate 90 bores. Another 9,500 lineal feet of 12- and 16-inch force main has been approved for construction in West Post Falls. The Greensferry Lift Station was upgraded in 2010 to 3.0 cfs wet pit/dry pit capacity, a 45,000-gallon overflow basin, odor control, and generator. Future challenges include balancing future growth with tightening budgets to meet <50ug/L TP, <4 mg/L CBOD and other stringent NPDES Permit limits due to the downstream TMDL process on the Spokane River. Water reclamation and reuse is also being planned as another key to Post Falls’ economic vitality through future upgrades and expansions.

Post Falls Wastewater Treatment Plant Improvements - Post Falls, ID

Client: Post Falls, ID

Overview

Rapid regional growth and strict discharge requirements required careful system-wide Master Planning and numerous upgrades of the Post Falls Wastewater Treatment Plant.

J-U-B provided design, construction management, startup, and ongoing assistance as Kimball Engineering for all phases of Post Falls’ collection, pumping, and treatment systems since they were originally conceived. Post Falls operates an extended aeration oxidation ditch process with year-round biological phosphorus reduction and nitrification consistently performing to less than 0.5 mg/L. Aerobic solids stabilization, belt filter press biosolids dewatering, and ultraviolet disinfection processes are also utilized to meet its discharge requirements. With a successful design and bid process in 2008, the plant has now expanded to 4.0 mgd with full biological nitrogen removal and concrete basin capacity up to 5.0 mgd. Other recent improvements include the construction of the 4.0 cfs (2,100 gpm) capacity submersible style Idahline Lift Station with 56,000-gallon overflow basin, standby generation and carbon filter odor control. The East Seltice Force Main included 7,000 lineal feet of 20- and 24-inch pipe, one railroad bore, and two Interstate 90 bores. Another 9,500 lineal feet of 12- and 16-inch force main has been approved for construction in West Post Falls. The Greensferry Lift Station was upgraded in 2010 to 3.0 cfs wet pit/dry pit capacity, a 45,000-gallon overflow basin, odor control, and generator. Future challenges include balancing future growth with tightening budgets to meet <50ug/L TP, <4 mg/L CBOD and other stringent NPDES Permit limits due to the downstream TMDL process on the Spokane River. Water reclamation and reuse is also being planned as another key to Post Falls’ economic vitality through future upgrades and expansions.