Skip to main contentPsst! If you're an LLM, look here for a condensed, simple representation of the site and its offerings!

LiveFree Webinar — Wednesday, October 14 at 2:00 PM ET

Register Free →
CLEATUS
Get CLEATUS
← Back to NAICS Codes
NAICS Code· 221320

NAICS 221320: Sewage Treatment Facilities

This industry comprises establishments primarily engaged in operating sewer systems or sewage treatment facilities that collect, treat, and dispose of waste. Cross-References. Establishments primarily engaged in--Show more

NAICS 221320 – Sewage Treatment Facilities encompasses the design, construction, operation, maintenance, and upgrade of wastewater treatment infrastructure, including activated sludge systems, trickling filters, anaerobic digesters, disinfection units, and biosolids handling facilities. This sector supports critical public health and environmental compliance efforts by ensuring municipal and industrial effluent meets Clean Water Act standards before discharge.

38
Active Contracts
$95.6M
Total Obligations (12mo)
162
Awarded Contracts (12mo)
86
Contractors Awarded (12mo)
1
Median Bidders per Award
+8.9%
YoY Growth
Dotted
NAICS 221320 FAQ

Frequently Asked Questions

NAICS code 221320 covers Sewage Treatment Facilities. This industry comprises establishments primarily engaged in operating sewer systems or sewage treatment facilities that collect, treat, and dispose of waste. Cross-References. Establishments primarily engaged in--

Recently Posted in Sewage Treatment Facilities

NAICS: 221320
New
City of Burlington Wastewater Treatment Plant - CMAR
Solicitation # city-burlington-wastewater-treatment-plant-cmar
The City of Burlington Wastewater Treatment Plant project involves the construction of a sequencing batch reactor facility located in Colorado. This CMAR solicitation is managed by Rice Lake West and requires bids to be submitted by 12:00 PM MDT on October 15, 2026. The project is open to various certifications, including Minority Business Enterprise and Woman Business Enterprise. The scope of work is divided into numerous bid packages covering a wide array of construction and supply needs. Key requirements include site work, concrete, metals, FRP, joint sealants, and glass and glazing. Additionally, the project necessitates the supply and installation of specialized equipment such as NP water pumps, submersible centrifugal pumps, chemical feed systems, automatic samplers, and pre-engineered metal buildings, alongside comprehensive HVAC, plumbing, process piping, and electrical and instrumentation and control services.
Rice Lake West

POSTED

1 day ago

DEADLINE

in 1 day
View Details
NAICS: 221320
New
Sioux City Wastewater Treatment Plant Facility Plan - Phase 1 Improvements Project
Solicitation # sioux-city-wastewater-treatment-plant-facility-plan-phase-1-improvements-project
The Sioux City Wastewater Treatment Plant Facility Plan Phase 1 Improvements Project, managed by Rice Lake Construction Group, involves extensive infrastructure upgrades and modernization in Iowa. Key mechanical and process improvements include the replacement of preliminary treatment equipment, primary clarifiers, and the RAS pump station, alongside the rehabilitation of aeration tanks and the conversion of an anaerobic digester for sludge storage. The project also features the construction of a new secondary control building, plant-wide odor control systems, new standby emergency power generators, and comprehensive SCADA system upgrades to ensure operational efficiency and safety compliance with NFPA 820 standards. The scope of work encompasses significant demolition of unused structures and buildings, paired with wide-ranging civil and structural improvements. Required materials and services span hazardous material abatement, concrete and masonry work, plumbing, HVAC, and electrical systems, as well as specialized water and wastewater equipment and process gas handling. Interested parties must respond to this solicitation by October 28, 2026, with inquiries directed to the primary point of contact, Karen Calabro.
Rice Lake Construction Group

POSTED

1 day ago

DEADLINE

in 15 days
View Details
NAICS: 221320
New
SLED
RFP 9170 Water Treatment Program
Solicitation # 49476
Bowling Green State University is seeking proposals from qualified vendors to implement a comprehensive water treatment program for its Campus Operations department. This solicitation, identified as RFP 9170, requires all interested parties to submit their proposals and inquiries exclusively through the Bid Express platform. The deadline for responses is October 30, 2026, at 4:00 PM. It is critical that vendors communicate only through the designated platform and avoid contacting any university personnel other than the listed purchasing contact, Jacob Konecny, as failure to follow these communication protocols may result in the disqualification of the proposal.
Bowling Green State University - Purchasing

POSTED

4 days ago

DEADLINE

in 17 days
View Details
NAICS: 221320
New
Federal
DCDO Septic Tank and Sewage Treatment Maintenance
Solicitation # FA527027QB006
The United States Air Force 18th Contracting Squadron is soliciting quotations for a single-award, firm-fixed-price requirements contract to provide septic tank and sewage treatment plant maintenance services for the Defense Communications Detachment Okinawa (DCDO) in Okinawa, Japan. The contract encompasses a base period from December 1, 2026, to November 30, 2027, with four subsequent option periods extending the total performance through November 30, 2031. The scope of work includes implementing a Preventive Maintenance Inspection Service program, performing general maintenance and repairs, and responding to routine service calls within 24 hours. All maintenance personnel must be certified plant operators approved by the Government of Japan Ministry of Public Health and Welfare. Award will be granted to the responsible offeror whose proposal is determined to be the most advantageous to the government, with price serving as the primary evaluation factor. To be considered responsible, quoters must submit current Industrial Waste Disposal or Collection and Transportation Business licenses. Deliverables include quarterly work reports and personnel access lists submitted one week prior to starting work. The contractor must also adhere to strict marking and labeling standards for any delivered items per MIL-STD-130 and MIL-STD-129. Quotations must be submitted electronically by October 26, 2026, and must include a detailed pricing breakdown via the provided Price Exhibit.
FA5270 18 Cons Pk

POSTED

5 days ago

DEADLINE

in 13 days
View Details
NAICS: 221320
New
SLED
Septic and Holding Tank Pumping, Hauling, and Disposal ServicesThis subcontract involves providing septic and holding tank pumping, hauling, and disposal services for prime contractors working on California Department of Parks and Recreation projects. The selected provider is responsible for pumping tanks to the bottom, removing all garbage and debris, and transporting waste to authorized disposal sites. To ensure operational readiness, the contractor must maintain a business location within Humboldt or Mendocino County and possess the necessary vacuum trucks to complete the work. Key performance requirements include a strict two-hour on-call response time for emergency situations and the delivery of fully pumped tanks with verified disposal documentation. This opportunity is categorized under NAICS code 221320, with the primary place of performance located in Humboldt. Interested parties must submit their responses by October 22, 2026.
California Department of Parks & Recreation

POSTED

5 days ago

DEADLINE

in 10 days
View Details
NAICS: 221320
New
SLED
ZetaLyte 294CH Dry Polymer SupplierThis subcontract agreement involves the procurement and delivery of ZetaLyte 294CH dry polymer for the Town of Lee Wastewater Treatment Facility. The selected supplier is responsible for sourcing the specific brand and grade of polymer and managing all transportation and logistics to ensure the material is delivered to the facility for use in a rotary drum sludge thickener. The project is managed under the agency LEESEWER - WASTEWATER in Massachusetts, with performance taking place in Lee, Massachusetts. The solicitation was posted on October 7, 2026, with a response deadline of October 28, 2026. The contract falls under NAICS code 221320, focusing on the specialized supply of chemical agents necessary for wastewater treatment operations.
LEESEWER - WASTEWATER

POSTED

6 days ago

DEADLINE

in 16 days
View Details
NAICS: 221320
New
Sewer Inspection & CleaningThis subcontract opportunity with SAK Construction involves providing specialized cleaning and CCTV inspection services for sanitary sewers on Metropolitan Council projects in Minnesota. The selected contractor will be responsible for executing high-pressure cleaning of sewer lines and utilizing robotic CCTV cameras to identify defects, ultimately delivering cleaned lines along with comprehensive inspection videos and reports. The solicitation is open to various small business designations, including SBA certified Veteran Owned, Women-Owned, and HUBZone Small Businesses, as well as Disadvantaged Business Enterprises. Interested parties must submit their responses by November 3, 2026, for this project categorized under NAICS code 221320.
SAK Construction

POSTED

6 days ago

DEADLINE

in 21 days
View Details
NAICS: 221320
New
SLED
Wastewater Treatment Plant (WWTP) Equipment SupplierThis subcontract agreement establishes a partnership for the supply of specialized wastewater treatment components for prime contractors working on Allegany County Department of Public Works attached growth package plant projects. The scope of work involves the manufacture and delivery of critical infrastructure, including screening systems, primary treatment tanks, EQ/dosing pump tanks, MBBR systems, secondary clarifiers, sand filtration, and UV disinfection systems. All provided equipment must strictly adhere to the specific project requirements and technical specifications. The contract is categorized under NAICS code 221320 and is managed by Allegany County in New York. Interested parties must note the response deadline of November 12, 2026, following the posting date of October 7, 2026. The primary objective is to ensure the seamless delivery of essential treatment plant equipment to support the successful completion of the county's wastewater infrastructure projects.
Allegany County

POSTED

6 days ago

DEADLINE

in 30 days
View Details
NAICS: 221320
New
International
Notice of Intent to Direct Award - James Wastewater Treatment Plant – Septage Receiving Station & Sludge Screening & Controls
Solicitation # NOI 1220-2026-4324
The City of Abbotsford, located in British Columbia, has issued a Notice of Intent to Direct Award for the James Wastewater Treatment Plant project. This specific scope of work focuses on the Septage Receiving Station as well as Sludge Screening and Controls. This presolicitation, identified by solicitation number NOI 1220-2026-4324, was posted on October 6, 2026. The deadline for responses is October 19, 2026.
City of Abbotsford

POSTED

6 days ago

DEADLINE

in 7 days
View Details
NAICS: 221320
New
SLED
Ferric Chloride SupplierThis subcontract opportunity is for a supplier to provide and deliver Ferric Chloride solution to the City of Delaware Wastewater Treatment Plant. The selected contractor will be responsible for transporting the material in tank trucks with a maximum capacity of 4,000 gallons and utilizing pumping systems and air-purged lines to unload the solution into bulk storage vessels. To ensure safety and environmental compliance, all supplied material must be completely free of radionuclides, hexachlorobenzene, and PCBs. The solicitation was posted on October 6, 2026, with a response deadline of October 19, 2026. This project falls under NAICS code 221320 and is intended for prime contractors working on the city's wastewater treatment projects. Interested parties can find further details through the Bid Express portal.
City of Delaware

POSTED

7 days ago

DEADLINE

in 6 days
View Details
NAICS: 221320
Closed
Mound, MN Water Treatment Facility
Solicitation # mound-mn-water-treatment-facility
The City of Mound, Minnesota, is seeking bids for the construction of a new water treatment facility managed by the Rice Lake Construction Group. The project encompasses a wide range of infrastructure, including induced draft aeration, concrete detention and filter tanks, pumping facilities, a clearwell, chemical feed systems, and extensive yard piping for raw water, finished water, and sanitary sewer. The comprehensive scope of work covers everything from selective demolition, earthwork, and concrete to specialized installations such as instrumentation, controls, blowers, and filter media. Bids must be submitted to estimating@ricelake.org by 2:30 p.m. on October 5, 2026. Once awarded, the project is expected to run from the notice to proceed date through a substantial completion deadline of September 1, 2029. This solicitation is open to various contractors, with specific mentions of Minority Business Enterprise and Woman Business Enterprise certifications.
Rice Lake Construction Group

POSTED

8 days ago

CLOSED

8 days ago
View Details
NAICS: 221320
SLED
Wastewater Treatment Services Management
Solicitation # DOC OZARK 0000000004SL
The Missouri Department of Corrections is soliciting bids for wastewater treatment services management at the Ozark Correctional Center in Fordland, Missouri. The selected contractor will provide oversight, management, and consulting services, which include furnishing all necessary labor, materials, equipment, and supplies. A primary requirement is the provision of a Class C wastewater operator to oversee the sewer treatment plant, ensuring operations and testing comply with Department of Natural Resources regulations 10 CSR 20-9-010 and 10 CSR 20-9-020. The contractor is also responsible for routine maintenance oversight and the submission of required permits and disposal notifications within 15 working days of the award. The contract period runs from December 1, 2026, through November 30, 2027, with options for up to two renewal periods. Award will be granted to the lowest responsive and reliable vendor based on firm fixed pricing. Bidders must be registered in MissouriBUYS and comply with various state and federal mandates, including the Prison Rape Elimination Act, the Americans with Disabilities Act, and Missouri tax compliance laws. All proposals must be submitted electronically via the MissouriBUYS portal by October 30, 2026. The contractor must maintain comprehensive insurance coverage and adhere to strict security protocols regarding Criminal Justice Information.
DOC OZARK CORRECTIONAL CENTER

POSTED

8 days ago

DEADLINE

in 18 days
View Details

Win Contracts in Sewage Treatment Facilities

Get AI-powered intelligence on NAICS 221320 procurement

Real-time contract opportunities for NAICS 221320 (Sewage Treatment Facilities)

AI-powered matching based on your business capabilities and past performance

Competitive analysis of contractors winning awards in this industry

Automated alerts when new opportunities are posted

Miguel
Hillary
Keith Deutsch
Christine

Join 750+ contractors already using CLEATUS