UOSA IFB 27-02 P2NR+ Construction
Upper Occoquan Service Authority
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- Posted
- Oct 19, 2026
- Closes
- Nov 4, 2026 (in 15 days)
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The project generally consists of nitrogen management process improvements andcomplementary Renewal and Replacement (R/R) improvements at the Millard H.Robbins, Jr. Regional Water Reclamation Plant (RWRP). Major work includesreplacement of eight (8) screw pumps at Primary Effluent Lift Stations (PELS) 55/1and 55/2; upgrade of two (2) RAS pumps and increased pumping capacity at RASPump Station 9/1; and cyclone/settleability improvements at Selector Basins 56/1â56/3 and 56/4â56/7; replacement of secondary clarifier mechanisms for SecondaryClarifiers 6/5 and 6/6; replacement of electrical equipment in Load Center No. 1 andLoad Center No. 8; replacement of a primary sludge pump in Primary Sludge PumpStaton 54/2; and other R/R improvements associated with the Primary Effluent PumpStations, ...