The U.S. Department of Energy's Federal Energy Management Program (FEMP) has identified on-site wastewater treatment systems as a water-efficient technology opportunity for the federal sector, publishing a deployment overview on 23 September 2026 (Department of Energy (.gov)). The program said treated effluent from these systems can be reclaimed for non-potable uses, offering federal sites a consistent alternative water supply that offsets freshwater drawn from surface and groundwater sources (Department of Energy (.gov)).
Key takeaways
- FEMP named on-site wastewater treatment as commercially available and relevant to federal facilities in a 23 September 2026 overview (Department of Energy (.gov)).
- Reclaimed effluent can be reused for landscape irrigation, vehicle wash, dust suppression, cooling tower makeup, and toilet and urinal flushing, the agency said (Department of Energy (.gov)).
- The overview is designed to help agencies screen technologies when entering energy savings performance contracts and utility energy service contracts (Department of Energy (.gov)).
- FEMP compared treatment options including conventional plants, lagoons, intermittent sand filters, constructed wetlands, membrane bioreactors, package plants, sequencing batch reactors, and moving bed biofilm reactors (Department of Energy (.gov)).
What happened
FEMP said it chose on-site wastewater treatment for the overview because treated effluent can be reclaimed and reused, helping federal sites reduce reliance on freshwater and lower their water risk (Department of Energy (.gov)). The document describes a range of processes — from conventional brick-and-mortar plants and engineered lagoons to package systems such as membrane bioreactors (MBR), sequencing batch reactors (SBR), and moving bed biofilm reactors (MBBR) — and ties each to land-area, capital cost and effluent quality characteristics (Department of Energy (.gov)).
FEMP framed the document as a tool for agencies to consider when they negotiate energy savings performance contracts (ESPCs) and utility energy service contracts (UESC), and pointed to EPA Wastewater Technology Fact Sheets and other resources for deeper technical detail (Department of Energy (.gov)). The overview does not name a specific procurement award or dollar figure; its purpose is to shortlist a technology class for federal water-efficiency planning.
Specification read
The overview does not report a single project's flow rate, so a project-level conversion to m³/day cannot be derived from the source. As a class, on-site systems covered by FEMP are described as package units needing relatively less land than a conventional plant and producing high-quality effluent suitable for cooling tower makeup, toilet flushing and irrigation (Department of Energy (.gov)). Treatment trains in this class typically run screening → equalisation → biological stage (MBR, SBR or MBBR) → tertiary filtration/disinfection, and the FEMP overview specifically bears on the biological and tertiary stages where reuse-grade effluent is generated.
If your plant is a federal or campus-style facility treating 50–500 m³/day of medium-strength sewage (BOD 200–400 mg/L, TSS 200–350 mg/L — general industry range, not from the sources) and you are under pressure to cut potable draw or meet a water-reuse target, the FEMP signal matters: it puts packaged MBR/SBR/MBBR options on the pre-approved list for ESPC and UESCO procurements, which is where the funding pathway for a retrofitted reuse train is most likely to be structured. Buyers scoping this class of project can compare packaged biological-reactor options and reuse-ready treatment chains via our Municipal and Water Purification hubs, and review reference specifications for closed-loop reuse on our Etching Wastewater Treatment System Design: 2026 Specs page. Operators comparing packaged biological reactors for Australian conditions can also read our Effluent Treatment Plant in Melbourne: 2026 Buyer's Engineering Guide and Effluent Treatment Plant in Sydney: 2026 Engineering Buyer's Guide.
FAQ
What did FEMP actually publish on 23 September 2026?
A technology-opportunity overview naming on-site wastewater treatment systems as a commercially available option for federal sites to reclaim and reuse effluent (Department of Energy (.gov)). It is a screening document, not a contract award.
Which reuse end-uses does FEMP say the reclaimed effluent can support?
Landscape irrigation, vehicle wash, construction-related applications, dust suppression, ornamental pond and fountain filling, cooling tower makeup, and toilet and urinal flushing (Department of Energy (.gov)).
How does this change a federal site's procurement pathway?
FEMP says the overview helps agencies identify water-efficient technologies when entering energy savings performance contracts (ESPCs) and utility energy service contracts (UESCs) (Department of Energy (.gov)), so a packaged reuse train becomes a more natural line item in those contracts.
What capital cost range should a buyer expect for a packaged MBR or SBR reuse train?
FEMP characterises these package units as moderate-to-high capital cost with moderate-to-high operating cost depending on the technology (Department of Energy (.gov)); specific dollar figures were not given in the source, so installed cost is a general industry range, not from the sources.
