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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.

108
Active Contracts
$94.9M
Total Obligations (12mo)
166
Awarded Contracts (12mo)
87
Contractors Awarded (12mo)
1
Median Bidders per Award
+8.9%
YoY Growth

Awarded Contractors

Companies that have received federal awards classified under NAICS 221320.

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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
SLED
Ductile Iron Pipe Installation (6-Inch)The contract requires the installation of 13 linear feet of 6-inch ductile iron pipe, encompassing all necessary tasks including handling, precise alignment, and proper jointing to ensure structural integrity and long-term performance. All work must strictly comply with the standards and specifications set forth by the South Carolina Department of Transportation, ensuring adherence to state-mandated engineering and safety protocols. The project is designated as a subcontract under NAICS code 221320, indicating its focus on water and sewer line and related infrastructure construction. The place of performance is located in Calhoun, Orangeburg, South Carolina, and the solicitation was posted on September 9, 2026, with the same date serving as the response deadline, indicating an immediate or same-day procurement process. The contract is managed under the jurisdiction of the South Carolina Department of Transportation, reflecting its alignment with state transportation infrastructure initiatives.
South Carolina Department of Transportation

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in 12 days

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NAICS: 221320
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PVC Water Line Installation (4-Inch C900 DR18)The contract entails the installation of 80 linear feet of 4-inch C900 DR18 PVC water line, encompassing all necessary work including trenching, bedding, jointing, and pressure testing to meet specified engineering and safety standards. The work must be performed in accordance with industry best practices and regulatory requirements to ensure the long-term integrity and functionality of the water line. All materials and procedures must comply with the defined technical specifications for C900 DR18 PVC, which includes proper handling, alignment, and sealing of joints to prevent leakage or structural failure. The project is issued as a subcontract under the South Carolina Department of Transportation with the NAICS code 221320, indicating classification within water and sewage systems construction. The place of performance is located in Calhoun, Orangeburg, South Carolina, and the solicitation was posted on September 9, 2026, with the same date set as the response deadline, suggesting an immediate or expedited award process. There is no set-aside designation indicated, and no point of contact is provided, meaning proposers must rely on the public posting for submission guidelines and additional details available through the provided link.
South Carolina Department of Transportation

POSTED

in 12 days

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NAICS: 221320
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Tapping Tee with Valve and Box InstallationThe contract involves the supply and installation of a 12-inch by 6-inch tapping tee complete with an integrated valve and protective box, requiring qualified personnel to perform a hot tap operation on an existing pipeline. The work includes the secure integration of the valve into the system, proper setting of the protective box, and ensuring all components meet operational and safety standards for long-term functionality. This subcontract is specifically scoped for a single location in Calhoun, Orangeburg, with the work tied to infrastructure maintenance or expansion efforts under the South Carolina Department of Transportation. All activities must be executed in compliance with industry best practices for pipeline modifications, with emphasis on minimizing disruption and ensuring structural integrity during and after installation. The solicitation was posted on September 9, 2026, with the same date serving as the deadline for responses, indicating an immediate or expedited award timeline.
South Carolina Department of Transportation

POSTED

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NAICS: 221320
New
McCook, Nebraska Water Resource Recovery Facility
Solicitation # mccook-nebraska-water-resource-recovery-facility
The McCook Water Resource Recovery Facility project in Nebraska involves the construction of a new waterline from Ravenswood Road to the treatment plant and the development of a 3,750 square foot headworks building featuring screens and grit removal. The scope includes the installation of new sequencing batch reactors and aerobic digesters, the relocation of a fan press for solids processing, and extensive site work including 1,800 square yards of paving and 2,800 square feet of sidewalks, alongside various building demolitions and renovations. Comprehensive work requirements span multiple disciplines, including demolition, concrete, masonry, plumbing, HVAC, electrical, and specialized water and wastewater equipment. Bids must be submitted to Rice Lake West by September 15, 2026, at 12:00 p.m. via email to estimating@rlwest.org. This solicitation is open to qualified contractors, with specific set-aside considerations for certified Minority Business Enterprises and Woman Business Enterprises.
Rice Lake West

POSTED

about 15 hours ago

DEADLINE

in 17 days
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NAICS: 221320
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WWTP repairs
Solicitation # BD-26-1992-BOURN-BOURN-132854
The Bourne Public Schools in Massachusetts is soliciting bids for wastewater treatment facility system upgrades located on Sandwich Road in Bourne. This project, identified by solicitation number BD-26-1992-BOURN-BOURN-132854, has an estimated value of 370,000 dollars. The scope of work includes the replacement of RBC media, installation of splash guards, replacement of the influent flow control box, exterior painting, and other miscellaneous contract tasks. Bids must be submitted electronically by September 23, 2026, at 11:00 AM EDT. Interested parties can review the bid forms and contract documents via the specified bidding portal. The procurement process includes specific requirements for bid deposits and bonds, and is managed by the primary point of contact, Jordan Geist.
BOURN - Bourne Public Schools

POSTED

1 day ago

DEADLINE

in 26 days
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NAICS: 221320
New
Federal
USCG FRC Sewage Offloading
Solicitation # 31140PR260000156
The US Coast Guard Base Kodiak intends to award a sole source firm fixed price contract to Paradigm Marine, LLC for sewage offload services for Fast Response Cutters in Kodiak, Alaska. This procurement is conducted under NAICS code 221320 and is justified because the services are tied to an existing dock space lease agreement, making Paradigm Marine the only responsible source capable of satisfying the agency requirements. While this is not a request for competitive quotes, interested organizations may submit their capabilities and qualifications to the primary point of contact, Robbin Kessler, by August 31, 2026, at 1:00 p.m. Alaska time. The government will evaluate these submissions to determine if the procurement should be shifted to a competitive basis, though the final decision remains at the discretion of the government.
Base KODIAK(00045)

POSTED

1 day ago

DEADLINE

in 3 days
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NAICS: 221320
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Wastewater System Flow Monitoring Services
Solicitation # 2026-09
The City of Modesto is seeking proposals and qualifications for Wastewater System Flow Monitoring Services under solicitation 2026-09. The project supports a wastewater infrastructure serving approximately 225,000 customers across 42 square miles, featuring 680 miles of sewer pipes, 43 lift stations, and two treatment plants located at the Sutter and Jennings campuses. Interested parties must submit their proposals by 11:00 AM PT on September 8, 2026. This local government solicitation is managed by the City of Modesto in California and aims to secure professional services to monitor and manage the flow within their extensive wastewater network.
City of Modesto

POSTED

2 days ago

DEADLINE

in 11 days
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NAICS: 221320
New
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1CA08023 Overhead Doors Maintenance and Repair Services
Solicitation # 1CA08023
The State of California is seeking a contractor for solicitation 1CA08023 to provide wastewater treatment services at the Glenwood Fire Center for the California Department of Forestry and Fire Protection. The selected contractor will be responsible for providing all necessary labor, materials, equipment, tools, and permits required to operate and maintain the facility while ensuring full regulatory compliance with California laws and industry standards. The closing date for this opportunity is September 23, 2026, at 5:00 PM. Interested parties should direct inquiries to Christopher Cabanes and may be required to register on the State of California website to participate in the bidding process. Performance of these services will take place in West Sacramento, California.
State of California

POSTED

2 days ago

DEADLINE

in 26 days
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NAICS: 221320
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Water Softener Tank Rental & Lease Management
County of Santa Barbara

POSTED

2 days ago

DEADLINE

in 12 days
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NAICS: 221320
New
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1CA08023 Overhead Doors Maintenance and Repair Services
Solicitation # 1CA08023
The California Department of Forestry and Fire Protection (CAL FIRE) is seeking a contractor to provide comprehensive wastewater treatment services for the Glenwood Fire Center located in Santa Clara, California. The selected contractor will be responsible for providing all necessary labor, materials, equipment, and permits to operate and maintain the facility while ensuring full regulatory compliance with California state regulations and industry standards. This solicitation, identified as 1CA08023, was posted on August 26, 2026, with a response deadline of September 24, 2026. Interested parties should direct inquiries to the primary point of contact, Christopher Cabanes, and submit their proposals through the Cal eProcure portal.
CAL FIRE

POSTED

2 days ago

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in 26 days
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NAICS: 221320
New
International
Town of High Level - Invitation to Bid - Sewage Lagoon Desludging Services
Solicitation # AB-2026-05950
The Town of High Level is seeking bids for sewage lagoon desludging services under solicitation AB-2026-05950. The scope of work requires the desludging of the first four primary cells on a lumpsum basis, while the desludging of the holding cell will be handled via a unit rate. Interested parties must submit their responses by the deadline of September 9, 2026, at 8:00 PM. The project is located in High Level, Alberta, and inquiries can be directed to Sunil Kanamala, the Director of Operations.
Town of High Level

POSTED

2 days ago

DEADLINE

in 12 days
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NAICS: 221320
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Quarterly Water Quality and Filtration System OverhaulThe City of Burlingame in California is seeking a subcontractor for the Quarterly Water Quality and Filtration System Overhaul. This contract focuses on the deep maintenance of the filtration system, requiring the contractor to perform backwashing of filters, inspect media beds, and conduct efficiency testing on a quarterly basis. The project is located in Burlingame, California, 94010, and falls under NAICS code 221320. Interested parties must submit their responses by the deadline of September 8, 2026.
City of Burlingame

POSTED

3 days ago

DEADLINE

in 11 days
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