Water Supply and Irrigation Systems: NAICS 221310
Browse federal contract opportunities classified under NAICS code 221310 (Water Supply and Irrigation Systems). Find active solicitations on SAM.gov, understand size standards, and discover set-aside opportunities for your business.
About NAICS 221310
Water Supply and Irrigation Systems. This industry falls under the Utilities sector (NAICS codes beginning with 22).
Federal agencies use NAICS code 221310 when posting contract opportunities on SAM.gov to classify the type of work being solicited. Businesses that operate in the water supply and irrigation systems space should include this code in their SAM.gov registration and capability statements to ensure they appear in relevant searches.
How to Use NAICS 221310 in Federal Contracting
To compete for federal contracts under NAICS 221310, your business should be registered in SAM.gov with this NAICS code listed in your entity profile. When agencies post solicitations for water supply and irrigation systems 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 221310. Set up your profile with your NAICS codes and certifications to receive personalized contract alerts.
NAICS 221310 Market Intelligence
Based on 3 years of federal award data from USAspending.gov, the water supply and irrigation systems market has seen 4,979 contract awards totaling $1.7B in value. The median contract size is $35K, with approximately 138 new awards per month.
Total Awards (3yr)
4,979
Total Value
$1.7B
Median Contract
$35K
Competitors
927
Contract value distribution
1,383 small business awards ($275.3M total value,$27K median)
927 companies compete for NAICS 221310 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 221310 (Water Supply and Irrigation Systems), 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 221310.
Recent NAICS 221310 Opportunities
View all →The Department of Defense is procuring water and sewer utility services for Goodfellow AFB and the Goodfellow Recreation Camp from the City of San Angelo. This sole-source firm-fixed-price contract is necessary as the City of San Angelo is the only provider with the required infrastructure and authority to deliver these services. The contract is expected to be awarded by November 30, 2026.
The Department of Defense is procuring bulk potable water delivery services for Schofield Barracks. The contractor will be responsible for delivering water on a scheduled or on-call basis, ensuring that facilities and tactical water stations are always supplied. Key requirements include providing all necessary personnel, equipment, and materials to fill US Army tactical water tanks.
The Department of Veterans Affairs is seeking sources for Water System Chemical Treatment Services for the VA Salt Lake City Health Care System. Key requirements include routine water system chemical testing, monitoring, maintenance treatment services, and supply of critical parts and chemicals for unscheduled maintenance and repairs. This notice is for market research purposes only and does not constitute a solicitation.
The Department of Energy is procuring a Deionization System with Recirculation and Monitoring Skid for the Oak Ridge National Laboratory. This project is funded by the DOE and requires proposals to support the installation within building 7920. Key requirements include adherence to specified terms and conditions and submission of various technical documents.
The Department of Energy is seeking proposals for a Deionization System with Recirculation and Monitoring Skid to support a DOE funded project at the Oak Ridge National Laboratory. Key requirements include the provision of equipment and adherence to specific terms and conditions outlined in the attachments. The project is managed by UT-Battelle, LLC, the contractor for the laboratory.
The Department of Energy is procuring a Deionization System with Recirculation and Monitoring Skid for the Oak Ridge National Laboratory to support a DOE funded project. Proposals are sought for the equipment to be installed in building 7920, with a fixed price contract structure. Key requirements include adherence to specific terms and conditions and completion by the stated deadlines.
The Department of the Interior is procuring repair services for the Domestic Water Treatment Plant at the New M. The work involves the repair and rebuilding of water purification and sewage treatment equipment, with a performance period of 28 days following order receipt. Quotes are due by July 27, 2026, and the procurement is being sole sourced to WesTech Engineering LLC due to proprietary software requirements.
The Department of Veterans Affairs is seeking sources for preventative maintenance of a reverse osmosis system. The requirement involves the repair and rebuild of water purification and sewage treatment equipment to ensure critical water system service.
The Department of the Interior is procuring water delivery services for the Sacramento River National Wildlife Refuge. The contract is designated as a single-source opportunity, indicating a unique requirement for the services needed.
The Department of the Interior is procuring maintenance services for the water purification and sewage treatment equipment at the Loxahatchee National Wildlife Refuge. Key requirements include the repair and rebuilding of existing equipment and systems to ensure operational efficiency.
Frequently Asked Questions
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