Wastewater Treatment Plant Aeration and UV System Upgrades

The City of Mossyrock is seeking bids to upgrade its wastewater treatment plant aeration and ultraviolet disinfection systems, including equipment replacement, installation, and testing.

City of Mossyrock


General
Open
Dec 03, 2026 10:00 PM
Nov 11, 2026 12:00 PM
Invitation for/to Bid (IFB/ITB)
Local
Ask AI about this solicitation
Submission Instructions
Mail
Mossyrock City Hall, 231 E State St., Mossyrock, WA 98564
Description

The project will upgrade the wastewater treatment plant's aeration and ultraviolet disinfection systems. Work includes removing existing blowers, diffusers, UV equipment, and related components; installing two screw blowers, fine-bubble diffusers, piping, valves, dissolved-oxygen monitoring equipment, and a new UV disinfection system with lamps, sensors, and controls; and providing an automatic wastewater sampler and associated electrical, instrumentation, and control connections. Site work includes a concrete sidewalk, a pre-engineered canopy for the UV equipment, equipment pads, conduits, and related improvements. The contractor must test the installed equipment and complete the work within 220 working days after the Notice to Proceed. A bid bond of at least 5% of the total bid is required. A site visit is offered but is not mandatory. Bids must be submitted as sealed paper bids.

Classification Codes
NAICS221320Sewage Treatment Facilities
PSCN046Installation of Equipment: Water Purification and Sewage Treatment Equipment
Smart Codes
wastewater treatment plant upgradeswastewater aeration equipmentultraviolet disinfection systems
Specifications
Supply & Service
No
Timeline
Nov 18, 2026 06:00 PM-Pre-Bid Site Visit (optional)
Site visit at the wastewater treatment plant; the specific meeting address is not stated.
Dec 03, 2026 10:00 PM-Bid Submission Deadline
Requirements
Required
  • Bid Bond — 5%
Documents
'Sewage Treatment Facilities' Opportunities
Sewerage System Design Bond

The City of Fairmont is seeking proposals for a sewerage system design bond, with proposals opening ...

Due in 13 days•City of Fairmont
Home Sewage Treatment Systems Elimination Services

The City of Columbus Department of Public Utilities is seeking professional services for the Olentan...

Due in 1 day•City of Columbus > Department of Public Utilities > Division of Water
Chemical Root Control and Sewer Treatment Services

Baltimore County, Maryland, is seeking bids for a term contract providing chemical root control and ...

Due in 5 days•Baltimore County > Division of Purchasing Services
Wastewater Treatment Facility and System Proposal

The Town of Georgetown is seeking proposals for a sustainable wastewater-treatment arrangement for i...

Due in 21 days•Town of Georgetown
Wastewater Facilities Evaluation and Master Plan Update

Central Weber Sewer Improvement District is seeking an engineering design firm to evaluate its waste...

Due in about 2 hours•Central Weber Sewer Improvement District
Terrebonne STEP Collection System Construction

Terrebonne Sanitary District is proposing a best-value procurement process for construction of the T...

Due in 18 days•Homestead Sanitary District > Board of Trustees
Authority Consulting Engineer Services

The Pequannock River Basin Regional Sewerage Authority is seeking an Authority Consulting Engineer f...

Due in about 2 months•Pequannock River Basin Regional Sewerage Authority
Sanitary Sewer Construction Projects

The City of Green Bay, Wisconsin is seeking proposals for the construction of sanitary sewer systems...

City of Green Bay > Public Works
Wastewater Treatment Infrastructure Operations

The City of Saint-Jean-sur-Richelieu is seeking wastewater treatment infrastructure operation servic...

Due in 4 days•Saint-Jean-sur-Richelieu
Rockaway Sewer Plant Work

The U.S. Department of Defense is seeking bids for work at the Rockaway Sewer Plant in Queens, New Y...

Due in 8 days•United States of America > DEPT OF DEFENSE
Sewage Pumping Station Upgrades and Construction

Peter Ballantyne Cree Nation is seeking construction and upgrades for two sewage pumping stations, i...

Due in 28 days•Peter Ballantyne Cree Nation
Castledale Drive Sanitary Sewer Extension

Harris County is seeking construction of a sanitary sewer system extension along Castledale Drive fo...

Due in 4 days•Harris County
Citywide Sanitary Sewer Project

The City of Pasadena, Texas, is soliciting sealed bids for its 2027 citywide sanitary sewer project,...

Due in 11 days•City of Pasadena
On-Call Sewer Collection Engineering and Construction Services

The City of Camas is seeking qualified firms for three-year, on-call engineering, permitting, constr...

Due in about 1 month•City of Camas
On-Call Wastewater Engineering Services

The Town of Stafford Water Pollution Control Authority is seeking an engineering firm for on-call wa...

Due in 4 days•Stafford > Water Pollution Control Authority
Collection System Cleaning and Video Inspection

The Buena Vista Sanitation District is seeking bids for cleaning and video inspection of its collect...

Due in about 7 hours•Buena Vista Sanitation District
Sewer System Extension Construction

The Town of Boyle is seeking sealed bids to construct a sewer system extension, with a 5% bid securi...

Due in 19 days•Boyle
Bayou Ridge Septic-to-Sewer Construction

Pace Water System is seeking bids for construction of the Bayou Ridge septic-to-sewer project, with ...

Due in 25 days•Pace Water System
Findley Lake Sewer Collection System Construction

The Town of Mina is requesting bids for construction of a new sanitary sewer collection system, incl...

Due in about 1 hour•Town of Mina
As-Needed Wastewater Treatment and Collection System Engineering Services

The City of Fruita is seeking a professional engineering firm for as-needed wastewater treatment fac...

Due in 19 days•City of Fruita
Sewage Lift Station Pump-Out Services

The U.S. Coast Guard is seeking recurring sewage lift station pump-out and waste removal services at...

Due in 4 days•United States of America > HOMELAND SECURITY, DEPARTMENT OF > U.S. COAST GUARD > BASE PORTSMOUTH
Lagoon Intermittent Sand Filter Expansion

The Town of Aylmer is seeking a contractor to expand its lagoon facility with sixteen intermittent s...

Due in 5 days•Town of Aylmer
Sanitary Sewer Rehabilitation and Expansion

The Town of Chase City is seeking bids for sanitary sewer rehabilitation and expansion work on High ...

Due in 27 days•Town of Chase City
Waste Disposal Services for Youth Facilities

The Louisiana Division of Administration is seeking waste disposal services for the Office of Juveni...

Due in 19 days•Louisiana > Office of State Procurement
Opportunities Near Olympia, Washington
Acoustic and Optical Borehole Televiewer System

The Washington State Department of Transportation is seeking an acoustic and optical borehole televi...

Due in 29 days•Washington > Department of Transportation
Unit-Priced Certified Public Accounting Services

The Port of Olympia is seeking unit-priced certified public accounting services, including audits, a...

Due in 14 days•Port of Olympia
CTF Active Global Equity Management

The Washington State Investment Board is seeking active global equity investment managers for its Co...

Due in about 1 year•Washington
Thurston County Office Space Lease

The Washington State Employment Security Department is seeking proposals to lease approximately 4,71...

Due in 11 months•Washington > Employment Security Department
Certified Public Accounting Services

The Port of Olympia is seeking unit-priced certified public accounting services, potentially includi...

Due in 14 days•Port of Olympia
Railroad Track and Crossing Signal Inspection and Maintenance

The Port of Olympia is seeking a contractor for recurring railroad track and highway crossing signal...

Due in 26 days•Port of Olympia
Conflict Public Defender Services

The City of Lacey is seeking attorneys to provide conflict public defense for indigent defendants in...

Due in 8 days•City of Lacey
Office Space Lease in Pierce County

Washington State’s Department of Enterprise Services, on behalf of the Employment Security Departmen...

Due in almost 2 years•Washington > Department of Enterprise Services
Slide-Sleeve Sets

The Defense Logistics Agency is requesting three slide-sleeve sets for delivery to DLA Distribution ...

Due in 4 days•United States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA WEAPONS SUPPORT (MARITIME HARDWARE/ELECTRICAL)
Health-Related Social Needs Nutrition Support Services

Pierce County Human Services is seeking applications from qualified organizations that already hold ...

Due in 4 months•Pierce County > Human Services
Visual Vault System Enhancement Services

Pierce County is seeking capability statements from entities able to provide design, configuration, ...

Due in 6 days•Pierce County
On-Call Facilities General Contractor Services

Pierce County is seeking an on-call general contractor for facility modifications, repairs, and othe...

Due in 11 days•Pierce County > Planning & Public Works > Procurement and Contract Division
PYRO Evo Counters and Professional Package

Pierce County is seeking capability statements from vendors authorized to sell three PYRO Evo counte...

Due in 5 days•Pierce County > Parks and Recreation
Metal Sign Posts

Pierce County is seeking bids to supply metal sign posts for its Planning and Public Works departmen...

Due in 8 days•Pierce County > Planning & Public Works
Setback Levee Pre-Design and Architectural Services

Pierce County is seeking qualified architecture and engineering firms for pre-design and architectur...

Due in 13 days•Pierce County
Lake Cushman Lease Appraisal Services

The City of Tacoma is seeking a Washington-licensed appraiser to determine the market value and rent...

Due in 5 days•City of Tacoma > Finance Department > Procurement and Payables Division
Lilliwaup Bay Utility Relocation Project

Public Utility District No. 1 of Mason County is seeking sealed proposals for the Lilliwaup Bay Util...

Due in 5 days•Public Utility District No. 1 of Mason County
Jail and Juvenile Detention Healthcare Services

Mason County is seeking a healthcare provider to deliver medical and related services to people deta...

Due in 19 days•Mason County > Mason County Sheriff's Office
Headquarters Mechanical Maintenance Services

The Washington State Department of Ecology is seeking a contractor to provide preventive and correct...

Due in 29 days•Washington > Department of Ecology
Geosynthetic Clay Liner and Bentonite Materials

The Washington Department of Fish and Wildlife is requesting bids for 10 rolls of geosynthetic clay ...

Due in about 21 hours•Washington > Washington Department of Fish and Wildlife
Siphon Primer and Tender System

The Washington Department of Fish and Wildlife is seeking a complete siphon primer and tender system...

Due in about 21 hours•Washington > Washington Department of Fish and Wildlife
Lake Algae Treatment and Phosphorus Mitigation

Thurston County is seeking a commercially licensed contractor to treat algae in Long Lake, including...

Due in 21 days•Thurston County > Public Health and Social Services Department > Environmental Health Division
2027 BMW R1300RT-P Police Pursuit Motorcycles

The Washington State Patrol is seeking six custom-built 2027 BMW R1300RT-P police pursuit motorcycle...

Due in 7 days•Washington > Washington State Patrol > Supply Section
Poly Mailer Shipping Bags

The Washington State Lottery is requesting quotes for 101,250 poly mailer shipping bags in two speci...

Due in 25 days•Washington > Washington Technology Solutions
Cell and Valve Assemblies

The Defense Logistics Agency is seeking 26 cell and valve assemblies for delivery to DLA Distributio...

Due in 11 days•United States of America > DEPT OF DEFENSE > DEFENSE LOGISTICS AGENCY > DLA TROOP SUPPORT (CONSTRUCTION & EQUIPMENT MRO SVC I)
Comments
Correspondences
Custom Fields