Sewage Treatment Facilities: NAICS 221320
Browse federal contract opportunities classified under NAICS code 221320 (Sewage Treatment Facilities). Find active solicitations on SAM.gov, understand size standards, and discover set-aside opportunities for your business.
About NAICS 221320
Sewage Treatment Facilities. This industry falls under the Utilities sector (NAICS codes beginning with 22).
Federal agencies use NAICS code 221320 when posting contract opportunities on SAM.gov to classify the type of work being solicited. Businesses that operate in the sewage treatment facilities space should include this code in their SAM.gov registration and capability statements to ensure they appear in relevant searches.
How to Use NAICS 221320 in Federal Contracting
To compete for federal contracts under NAICS 221320, your business should be registered in SAM.gov with this NAICS code listed in your entity profile. When agencies post solicitations for sewage treatment facilities work, they reference this code to determine the applicable small business size standard and any set-aside eligibility.
If you hold certifications such as 8(a), HUBZone, SDVOSB, or WOSB, you may be eligible for set-aside contracts under this NAICS code. These set-asides limit competition to certified small businesses, giving you a significant advantage in winning federal work.
FedOverwatch monitors SAM.gov daily and can automatically match you with new opportunities under NAICS 221320. Set up your profile with your NAICS codes and certifications to receive personalized contract alerts.
NAICS 221320 Market Intelligence
Based on 3 years of federal award data from USAspending.gov, the sewage treatment facilities market has seen 1,495 contract awards totaling $575.8M in value. The median contract size is $60K, with approximately 42 new awards per month.
Total Awards (3yr)
1,495
Total Value
$575.8M
Median Contract
$60K
Competitors
239
Contract value distribution
336 small business awards ($66.8M total value,$43K median)
239 companies compete for NAICS 221320 contracts
See who's winning, their award values, and where you fit in the market
Explore CompetitorsSize Standards
The SBA establishes size standards for each NAICS code to define what qualifies as a "small business" for federal contracting purposes. For NAICS 221320 (Sewage Treatment Facilities), the size standard is based on either average annual receipts or number of employees, depending on the specific industry. Meeting the size standard for your primary NAICS code is required to qualify for small business set-aside contracts.
Visit the SBA Size Standards Table to find the current threshold for NAICS 221320.
Recent NAICS 221320 Opportunities
View all →The Department of the Interior is procuring the replacement of the South Rim Wastewater Treatment Plant located in Grand Canyon, AZ. The project involves the construction of other utilities and is associated with the National Park Service. Proposals are due by November 2, 2026, at 2:00 PM MST.
The Department of Defense is procuring operation and maintenance services for the Wastewater Treatment Plant at Commander Fleet Activities in Yokosuka, Japan. The contract will be a single award Indefinite Delivery/Indefinite Quantity type, focusing on both recurring and non-recurring work items, and requires contractors to be authorized to operate in Japan and comply with local regulations.
The Department of Defense is procuring maintenance services for incinerator plant equipment and systems, calibration weight scales, operation and maintenance of sewage treatment facilities and sewer lines, painting of wastewater treatment systems, and cleaning and disinfection of potable water tanks at various locations in Yokosuka. The contract was awarded on a sole source basis to Nikken Sogyo Co, Ltd, and is governed by FAR regulations.
Frequently Asked Questions
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Set up your profile with your NAICS codes and certifications, and FedOverwatch will automatically match you with relevant sewage treatment facilities opportunities as they're posted on SAM.gov.