What We Do

NSU is a leader in water reuse

Natural Systems Utilities (NSU) creates sustainable solutions for water management. Pioneering efforts in water recycling, NSU is a resource for institutional, commercial, municipal, and other sectors meeting their long-term resource stewardship and sustainability goals.

We minimize the long-term liability of our clients through private management and operation of water treatment infrastructure. NSU is here to help you achieve your sustainability goals today. Contact us to discuss your water management project and to learn more about the services we provide.

Water Reuse Solutions

Sustainable water strategies yield environmental benefits while also saving your business in overhead costs. NSU’s water reuse solutions capitalize on the resources already in use at your facility, so you can do more with less. We’ve undertaken dozens of projects across sectors in our 30-plus years of service — view our work to see how we’ve improved facilities in your industry.

NSU designed, built, and operates the largest base of community-scale water resource and wastewater systems in the country which transcends a long history of innovation and advancement. NSU’s community district infrastructure incorporates an integrated water management approach that capitalizes on multiple facets of efficiency and optimization that together provide resilient, affordable, and sustainable treatment systems.

NSU’s water management solutions offer value to a wide array of community densities and user types and currently serve many urban, suburban, and rural communities and include residential, industrial, institutional, commercial, and municipal customers. Such systems can stand alone and provide complete water and wastewater services or can be blended together with aging regional infrastructure to improve efficiency and reduce burden. Built to fit specific customer needs, schedules, and budgets, our systems encompass a combination of water, wastewater, thermal energy, and nutrient benefits and stand as living proof of the advantages of distributed infrastructure.

Although considerable attention is drawn to the 1 percent of the world’s available water supply that is used for drinking, the vast majority of our water is used for agriculture, commercial, and industrial purposes and this finite resource is rapidly depleting. Municipalities, businesses, and schools, particularly in the more arid regions, demand systems that not only fulfill day-to-day water needs, but also must simultaneously conserve water in a cost-effective manner. This is indeed a challenge, particularly given the nation’s aging and inefficient infrastructure and increasingly strained water supplies.


We manage the design, construction, and operations of several wastewater reuse systems that are helping to lead a transformation of water infrastructure within the United States, some of which recycle 100% of the wastewater treated. Direct water reuse is a beneficial and innovative approach where wastewater and stormwater are treated and reused for multiple non-potable purposes, greatly reducing demands on fresh water supplies:

  • Toilet flushing
  • Cooling tower make-up
  • Laundry
  • Landscape or rooftop irrigation

All of the water reuse projects designed by NSU incorporate blackwater (typically water from toilets and urinals) and greywater (typically water from all drains except toilets and urinals) treatment systems. In addition, NSU offers services in rainwater harvesting or stormwater management using green stormwater infrastructure.

NSU’s direct water reuse systems are of varying capacities and sizes depending on the particular needs and water demand for each building. Each system employs the same basic technology:

  • Anoxic and aerobic treatment is employed to remove the biological oxygen demand and nitrogen to comply with each state’s direct reuse standards.
  • Filtration is typically applied. In several of the systems, submerged microfiltration membranes are in place to remove suspended solid particles. This treated, filtered water is then passed through an ultraviolet light system that kills pathogenic bacteria.
  • Disinfection using ozone can be used to completely remove any traces of color.

Efficient water use begins with an effective supply system. NSU has over 35 years of experience in developing strategies, designing, building, and operating water supply systems. Our experts will collaborate with you to develop or maintain a water supply system that meets demand and positions your facility for prolonged sustainability.

NSU specializes in environmental consulting that strives to balance development with environmental stewardship. The goal of valuing and preserving the unique qualities of a community are always first and foremost in our minds as we assist in responsible development. Through value and environmental quality engineering decisions we can help with Spill Cleanup, Tank Removal, Site Assessment (21E), Water Supply Treatment & Development, Septic & Wastewater, Wetlands Permitting & Development, and Asbestos & Radon.

Today’s standards of operating modern water-supply or wastewater treatment facilities require a state-certified individual who has knowledge of chemistry and biology and possesses additional electrical and mechanical skills and management has particular expertise in recruiting and training local employees. The company applies remote monitoring technology as well as distributed system management expertise to provide award winning service. NSU maintains a staff of professional operators for contract operation services, providing full- and part-time operators for many clients.

Working with a single source provider like NSU ensures smooth transitions between project phases, reducing costs and producing the BEST POSSIBLE OUTCOME.

Water Recycling Services

Water reuse gives your business an opportunity to lead its industry with a cost-effective plan for sustainability. Choose the experts who can make it happen. Our wastewater treatment services will address specific needs while helping your business design, build, and operate a successful treatment system on its grounds. We offer multiple water reuse service options, including:

A thoughtful design implemented through efficient building practices will ensure your facility’s water treatment system produces the best long-term results. NSU’s design-build expertise offers our clients an efficient and cost-effective full-service project approach in the early stages of onsite water stewardship. Your organization will save time and money by allowing our in-house planning, engineering, and construction professionals to collaborate, develop, and build reliable infrastructure.

Contracting an experienced and reliable team to design and build your water system will lead to significant long-term savings, and additional water treatment facility operation services can expand your return to a greater extent. NSU combines the roles of designer, engineer, contractor, and operator of water, energy, and wastewater reclamation infrastructure components in a seamless multi-discipline Design-Build-Operate (DBO) service for our clients.

Operating a water treatment system at your facility requires careful attention to detail. NSU understands the inner workings of a functional system and can pinpoint warning signs before they escalate into greater issues. For the right project, NSU can provide the capital investment and expertise to build your project through a Water Purchase Agreement (WPA) or similar structure.

NSU can also transfer or assume ownership responsibilities after the project is built. Having experts present onsite after your treatment infrastructure’s construction is one of the best ways to ensure proper long-term performance.

Achieving water sustainability requires collaborative efforts across the market. NSU is committed to seeing every industry save by implementing water restoration and reuse systems, which is why we offer ownership services. For the right project, NSU can provide the capital investment and expertise to build your project and share operating responsibilities.

Consistent and satisfactory maintenance routines help ensure water treatment infrastructures operate at full capacity for longer periods. Turn to the experts for water system maintenance at your facility. NSU offers customized preventative maintenance and repair programs for water supply, wastewater treatment, and water reuse facilities.

Design Build

Design Build Services


Operation & Maintenance


Public-Private Partnership

Site Services


Get Started With Natural Systems Utilities

NSU is here to provide a smooth pathway toward in-house sustainability for businesses across industries. Our water solutions and services facilitate long-term success through careful planning, precise construction, and diligent management. We’ve aided countless customers in our nearly 40 years in the industry. Contact NSU online today to discuss how we can help your business.