Onsite Residential and Commercial Water Reuse Systems
Innovative product designers, engineers, and manufacturers have begun developing onsite wastewater treatment technologies to treat and reuse wastewater. These decentralized treatment systems will offer a sustainable, energy-efficient, and practical solution for protecting our water supply.
Some feel uncertain and skeptical since these newer technologies are not widely known as an alternative to discharge-only systems. To help address the uncertainty and skepticism about these reuse systems, NSF/ANSI Standard 350: Onsite Residential and Commercial Water Reuse Treatment Systems was developed. This standard sets guidelines and requirements for treating onsite wastewater for reuse applications and methods to meet Log Reduction Targets (LRTs) to yield credits for viruses, bacteria, and protozoan removal. This is the first standard to comprehensively evaluate wastewater reuse technologies with water treatment quality criteria, public health initiatives, and environmental concerns in mind.
When certifying these types of technologies, NSF verifies that all design, construction, and performance requirements of the standard have been met through initial technical reviews, rigorous testing of influent /effluent, and inspection to ensure that the reused water meets stringent water quality criteria for its designated end uses.
How NSF Can Help You
What’s New with NSF
Information Systems Security Association (ISSA) Welcomes NSF’s Brian Schultz into the 2026 Hall of Fame
September 10, 2026Lifetime achievement recognition honors exceptional leadership and lasting contributions to the cybersecurity profession.NSF Welcomes Nicole Parent Haughey to Board of Directors
September 10, 2026NSF's appointment of Nicole supports the organization's continued focus on long-term growth and transformation.
NSF Launches Independent Certification Standard for Compact Products
August 25, 2026New third-party certification verifies products cutting materials and shipping impacts while maintaining safety and performance.
CELSIUS® Products Earn NSF Certified for Sport® Certification
August 20, 2026CELSIUS® has earned NSF Certified for Sport® certification for select products, including the CELSIUS VIBES line, reinforcing the brand’s commitment to quality, transparency and consumer trust.