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Home » WRF Phase 2 Upgrades Project Schedule A: Liquid Process, Schedule B: Solids Handling

WRF Phase 2 Upgrades Project Schedule A: Liquid Process, Schedule B: Solids Handling


Location: YELM, WASHINGTON     

Bid Date: 10:00 AM ON AUGUST 11TH, 2022 
Schedule A – Liquid Process: Conversion of an existing Sequencing Batch Reactor (SBR) water reclamation facility (WRF) to a new membrane bioreactor (MBR) WRF including all ancillary equipment needed to support the MBR treatment system including but not limited to: Obtain and comply with permits; Partial demolition of SBR tanks, Blower equipment, pump station, Effluent Filters, lagoon equipment, power generators, chlorine contact tank, Influent structure, Solids building equipment, and abandoning site pipe; Construction of Mechanical Electrical Building, MBR tanks, Aeration tank walls, Headworks, Feed Forward Building, MBR CIP Building, Distribution structures, flow channels, Chemical Building, and Plant Drain Pump Station; Excavation, Paving and restoration; Supply and installation of headworks drum screens, gates and control panels; Supply and Installation of grit removal system with pump and classifier; Supply and installation of blowers, pumps, sanitary sewer piping, and supports; Supply and installation of MBR submerged membrane units (SMUs) in MBR tanks; Installation includes all piping, equipment and instruments provided by MBR manufacturer; Stainless steel, ductile iron and other pipe supply and installation; Supply and installation of electrical MCCs, VFDs, instruments, duct banks, conduit, and PLC replacement; Supply and installation of standby generator with fuel tank and transformer; Demolition and replacement of existing pipe, conduits, metal supports, and doors at 
the facility; Supply and installation of HVAC systems and louvers.  
Schedule B – Solids Handling: Supply and install new centrifuge; polymer feed systems, controls, and conveyors; a biodryer constructed with expansion for second with up to three boilers, odor control, a 2,400-square foot weather enclosure, and ancillary equipment to produce an exceptional quality Class A Biosolid; and a new septage receiving station with screening, valving and metering, odor control, a storage tank, and pump station.

The work shall be substantially completed: 512 CALENDAR DAYS.

Wages are Prevailing Wages. 

Seeking proposals from qualified and certified DBE/MBE/WBE Contracting & Supplier firms on the following: AC PAVING, CONCRETE, BUILDING INSTALLATION, WOOD TRUSSES, HVAC, MASONRY, CASEWORK, REBAR, PAINTING & COATING, SURVEYING, ELECTRICAL, ETC.

If you are interested in this project and would like plans and specs please contact the Estimating Department at or call 1.360.334.3100. 

Rotschy Inc is an Equal Opportunity Employer. 

Closing Date: 
Thursday, August 11, 2022
Rotschy Inc.
Point of Contact: