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HomeBrowseNAICS237110
NAICS237110Sector 23

Water and Sewer Line Construction

Laying water and sewer mains, pumping stations, and water and sewage treatment plants. Find active federal and state water and sewer line construction contracts — AI-scored against your profile across SAM.gov and 200+ portals.

237110
NAICS Code
$3.1M
Avg Contract Value
$45 million in average annual receipts
Size Standard
Construction
Sector

Market Overview — NAICS 237110

Annual federal spend under NAICS 237110 averages $2–3 billion, driven primarily by EPA's State Revolving Funds, Army Corps civil works, and USACE military construction. Contracts are typically competed as firm-fixed-price IDIQs or stand-alone design-bid-build projects. Demand spikes with new EPA consent decrees and aging infrastructure replacement. Competition is moderate; about 60% of dollars go to small businesses. Most work is regional, with agencies like USACE districts and state DOTs issuing multiple-award task-order contracts. Bonding requirements (typically 100% performance and payment bonds) are a key barrier. Set-asides are common: 8(a), HUBZone, and SDVOSB preferences appear frequently, especially for projects under $10 million.

Top Federal Buyers for NAICS 237110

These agencies are the largest buyers of water and sewer line construction services and products in the federal government. Each awards contracts under NAICS 237110 regularly — build relationships with their small business offices first.

EPA
Municipal Water Authorities
Army Corps
State DOTs

How to Win NAICS 237110 Contracts

To win 237110 contracts, focus on past performance in EPA-funded water/wastewater projects and obtain necessary state licenses (e.g., contractor license in the state of work). The highest-leverage move is to pursue 8(a) or HUBZone set-aside contracts via USACE and EPA's SRF-funded programs, as these are often less competitive. Many awards use LPTA evaluation, so a technically acceptable proposal with the lowest price wins. Build relationships with USACE district small business offices and monitor FedBizOpps for sources-sought notices. Also, consider teaming with a larger prime on design-build projects to gain experience.

Contract Vehicles & Buying Pattern

Most 237110 work is awarded via agency-specific multiple-award IDIQs (e.g., USACE MATOC, EPA SRF-funded contracts). GSA Schedule 236215 (Construction) is rarely used for water/sewer; instead, agencies use open-market LPTA competitions. Best-value tradeoffs occur on larger, complex projects. Evaluation typically emphasizes past performance, technical approach, and price, with LPTA common for smaller task orders.

Related Search Terms

water main construction federal contractsEPA sewer line construction IDIQUSACE water treatment plant set-aside8(a) water and sewer line constructionHUBZone wastewater infrastructure projectsSDVOSB sewer line construction bidsstate DOT water line replacement contractssmall business sewer main installation

Frequently Asked Questions

What license do I need for NAICS 237110 water and sewer line construction?

Most states require a general contractor license, often with a specific classification for water/sewer or utility construction. For example, California requires an A or C-34 license. Check the state where the project is located; federal contracts typically defer to state licensing laws.

What bonding is typically required for federal water and sewer contracts?

For contracts over $150,000, the Miller Act requires 100% performance and payment bonds. Many agencies also require bid bonds (typically 20% of bid amount). For IDIQ contracts, bonding may be required per task order, often at 100% of the order value.

Are there set-asides for small businesses in NAICS 237110?

Yes. The SBA's 8(a) program, HUBZone, and SDVOSB set-asides are common, especially for projects under $10 million. USACE and EPA often set aside entire IDIQs for small businesses. Check the solicitation for set-aside status.

What is the typical award size for a water and sewer line construction contract?

Award sizes vary widely. Stand-alone projects range from $500,000 to $50 million. IDIQ contracts may have a $5–$20 million ceiling with individual task orders averaging $1–$5 million. The median federal award is around $2 million.

Can I subcontract as a small business on a large water/sewer project?

Yes, many large primes seek small business subcontractors for specialized work like trenching, pipe laying, or concrete work. Ensure you register in SAM and have relevant past performance. Subcontracting can be a good entry point to build experience for prime contracts.

Related NAICS Codes