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    1. Home
    2. /Gov Explore
    3. /NAICS Codes
    4. /22131

    NAICS Demand Lane

    Water Supply and Irrigation Systems, Contract Opportunities

    2,098 total opportunities (2,098 active) tied to NAICS 22131 across federal, state, local, and forecast sources.
    NAICS 22131Federal + SLED2.1K total
    View NAICS definition →
    Total Opportunities
    2.1K
    Across all indexed sources
    Active Estimate
    2.1K
    Approximate active count
    Source Count
    3
    Federal, SLED, and forecast lanes

    Latest federal solicitations for NAICS 22131.

    DEPT OF DEFENSE

    CHLORINATION SYSTEMS AND MAINTENANCE - FWA

    Active

    AI Summary

    The Department of Defense is seeking proposals for chlorination systems and maintenance services. This opportunity is a combined synopsis/solicitation, and interested parties should refer to the attached solicitation documents for detailed instructions and requirements. The solicitation includes a Performance Work Stat…

    AK

    Posted Aug 25, 2026Due Sep 1, 2026Combined Synopsis/SolicitationNAICS 221310Total Small Business Set-Aside (FAR 19.5)Sol: W912D026QA009
    View details→

    DEPT OF DEFENSE

    AMENDMENT 4-SOLICITATION-WBAMC- WATER PURIFICATION AND TREATMENT SERVICES W81K0026QA253 (DHA)

    Active

    AI Summary

    This opportunity involves water purification and treatment services for the Defense Health Agency, as indicated in the amended solicitation DHARFQ_W81K0026QA253. The requirement remains unchanged despite the agency realignment. Bidders should review all attached documents thoroughly for details.

    VA

    Posted Aug 24, 2026Due Aug 27, 2026SolicitationNAICS 221310Total Small Business Set-Aside (FAR 19.5)Sol: DHARFQ_W81K0026QA253
    View details→

    DEPARTMENT OF TRANSPORTATION

    WATER TREATMENT SERVICES AT ZMP ARTCC IN FARMINGTON, MN

    Active

    AI Summary

    The FAA is seeking proposals for water treatment services at the ZMP ARTCC in Farmington, MN, under a Firm-fixed Price Contract. Proposals are due by September 2, 2026, and an optional site visit is scheduled for August 19, 2026. Interested parties must register in SAM and submit inquiries via email.

    TX

    Posted Aug 24, 2026Due Sep 2, 2026SolicitationNAICS 221310Total Small Business Set-Aside (FAR 19.5)Sol: 697DCK-26-R-00373
    View details→

    REPLACE FILTER MEDIA OF WATER TREATMENT PLANT AT CAMP HUMPHREYS

    Active

    AI Summary

    This opportunity involves the replacement of filter media at the Water Treatment Plant located at Camp Humphreys. Interested bidders should refer to the attached solicitation for detailed requirements and specifications.

    Posted Aug 24, 2026Due Sep 2, 2026SolicitationNAICS 221310Sol: W51LL526QA016
    View details→

    DEPARTMENT OF HOMELAND SECURITY

    NOTICE OF INTENT TO AWARD SOLE SOURCE ORDER FOR OEM AQUA-CHEM FRESHWATER DISTILLATION AND REVERSE OSMOSIS SYSTEM TECHNICAL SERVICES

    Archived

    AI Summary

    The US Coast Guard intends to award a sole-source order to Aqua-Chem Inc. for OEM technical services related to freshwater distillation and reverse osmosis systems. Interested parties must demonstrate their capability to provide equivalent services. This opportunity is conducted under Simplified Acquisition Procedures …

    Posted Aug 22, 2026Due Aug 24, 2026Special NoticeNAICS 221310No Set aside usedSol: 52000SP260027864
    View details→

    DEPARTMENT OF HEALTH AND HUMAN SERVICES

    AMENDMENT 1 - QUESTIONS, ANSWERS, SITE VISIT INFO AND CLOSING DATE EXTENSION WRSU WATER DELIVERY SERVICE

    Active

    AI Summary

    The Indian Health Service is seeking quotations for emergency potable water delivery to the Whiteriver Hospital during outages. This is a combined synopsis/solicitation under NAICS 221310, with a Firm-Fixed-Price contract anticipated. The opportunity is a Total Small Business Set-Aside, and a site visit is scheduled fo…

    AZ

    Posted Aug 21, 2026Due Aug 28, 2026Combined Synopsis/SolicitationNAICS 221310Total Small Business Set-Aside (FAR 19.5)Sol: IHS1525524
    View details→

    DEPARTMENT OF HEALTH AND HUMAN SERVICES

    SOURCES SOUGHT ONLY - HOPI - UTILITY WATER SERVICE

    Active

    AI Summary

    The Indian Health Service is seeking sources for continuous potable water utility service at the Hopi Health Care Center in Arizona. This includes utility infrastructure support, emergency response, and water quality management. Interested parties should demonstrate their capability to provide these services through ex…

    AZ

    Posted Aug 20, 2026Due Aug 26, 2026Sources SoughtNAICS 221310Indian Small Business Economic Enterprise (ISBEE) Set-Aside (specific to Department of Interior and Indian Health Services)Sol: IHS1530073
    View details→

    DEPARTMENT OF COMMERCE

    CISTERN CLEANING SERVICES

    Active

    AI Summary

    The Department of Commerce seeks a contractor for comprehensive cistern cleaning services at the Table Mountain Field Site. The project includes cleaning, sanitization, inspection, and potential replacement of five potable water cisterns to ensure compliance with industry standards. Bidders must provide all necessary l…

    DC

    Posted Aug 20, 2026Due Sep 4, 2026SolicitationNAICS 221310Total Small Business Set-Aside (FAR 19.5)Sol: NTIA0000-26-00235
    View details→

    DEPARTMENT OF AGRICULTURE

    WATER PURIFICATION SYSTEM

    Archived

    AI Summary

    This solicitation is for a 5-year firm-fixed-price contract for preventive maintenance of the Water Purification System at USDA’s National Center for Applied Plant Protection. The contract includes quarterly, biannual, and annual maintenance services. Interested vendors must submit their proposals by 12:00 PM (EST) on …

    MN

    Posted Aug 20, 2026Due Aug 24, 2026SolicitationNAICS 221310Total Small Business Set-Aside (FAR 19.5)Sol: 12639526Q0241
    View details→

    DEPARTMENT OF THE INTERIOR

    F--SERVICE FOR ATLANTIUM UV WATER TREATMENT SYSTEM

    Active

    AI Summary

    The National Park Service is seeking services for the installation and maintenance of an Atlantium UV water treatment system at Katherine Landing in Lake Mead National Recreation Area. Interested parties should refer to the attached notice for complete details.

    NV

    Posted Aug 20, 2026Due Sep 3, 2026PresolicitationNAICS 221310Sol: 140P8126Q0047
    View details→

    Source mix

    How this NAICS code is represented across indexed contract sources.

    federal
    1,225
    sled
    854
    forecast
    19

    Related NAICS Codes

    • 22, Utilities→
    • 221, Utilities →
    • 2211, Electric Power Generation, Transmission and Distribution→
    • 22111, Electric Power Generation →
    • 221111, Hydroelectric Power Generation →
    • 221112, Fossil Fuel Electric Power Generation →
    • 221113, Nuclear Electric Power Generation →
    • 221114, Solar Electric Power Generation →
    • 221115, Wind Electric Power Generation →
    • 221116, Geothermal Electric Power Generation →

    Explore

    • 22131 Definition→
    • Browse NAICS Codes→
    • PSC Contract Lanes→
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    About NAICS 22131

    This industry comprises establishments primarily engaged in operating water supply systems and irrigation systems. These systems provide water for residential, commercial, agricultural, and industrial use.

    Read the full NAICS definition →