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Last updated on July 3, 2024. A design manual for onsite wastewater treatment and disposal systems.
Although wastewater treatment and di sposal systems servi ng single homes have been used for many years, they have often been considered an inadequate or temporary sol on uti sewers until could be constructed.
Onsite (or decentralized) wastewater treatment systems are used to treat wastewater from a home or business and return treated wastewater back into the receiving environment. They are typically referred to as septic systems, because most involve a septic tank for partial treatment.
A design manual for onsite wastewater treatment and disposal systems. You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.
Guidance and technical information to help communities establish comprehensive septic (onsite) wastewater management programs. Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems (pdf) (1.23 MB)
The 2012 Residential Onsite Wastewater Treatment Systems Design Handbook (PDF, 10MB, 277pg) is now available for download. Questions or comments: bpwsp@health.ny.gov. Revised: July 2017.
An Onsite Wastewater Treatment System, or OWTS, is the approved method of sewage/wastewater disposal in areas where sewer connection is not yet available. Also known as a “septic system”, OWTS are made up of a septic tank that collects sewage/wastewater from the home, and a dispersal field that allows the liquid sewage or “efluent” to ...
Onsite Wastewater Treatment System. USER GUIDE. About NOWRA. The National Onsite Wastewater Recycling Association (NOWRA) is the largest organization within the U.S. dedicated to educating and representing members within the onsite and decentralized industry.
Onsite wastewater treatment system (OWTS) is a privately owned and maintained sewage disposal system that treats wastewater and produces disinfected effluent, which is not harmful to humans and the environment.
The State Water Board adopted the Water Quality Control Policy for Siting, Design, Operation and Maintenance of Onsite Wastewater Treatment Systems (OWTS Policy) in June of 2012 and renewed its conditional waiver in April of 2018, for the first renewal and in April 2023 for the second renewal.
EPA’s Voluntary National Guidelines for Managing Onsite and Clustered (Decentralized) Wastewater Treatment Systems provides information on the impacts of decentralized wastewater systems, the need for management, and five management program models that can be used by states and communities. See page 49, reference #4.
Lowridge custom designs onsite wastewater treatment systems by integrating all aspects of wastewater treatment: hydraulic, biological, filtration, electrical controls, and final dispersal. Depending on the needs and layout, we can be a one stop shop for onsite wastewater needs.
Onsite wastewater treatment systems are designed to remove or inactivate these pathogens, reducing the risk of disease transmission. Onsite wastewater treatment also helps to control the spread of antibiotic-resistant bacteria.
Through a grant from US EPA and in partnership with the Rural Community Assistance Partnership (RCAP), NOWRA has developed training materials for educating property owners with an onsite wastewater treatment system (OWTS).
NSF Onsite Wastewater Treatment Unit Program. Goal: Ensure a national program of product compliance that (1) provides consistent methods and measures of performance, and (2) a reliable third-party source for data and product directories of those products demonstrating compliance.
Onsite and decentralized wastewater treatment systems treat 20%–25% of the wastewater in the US, particularly in low-density residential and commercial areas. While sewerage systems are expected to expand over the next decades, it remains cost-prohibitive to connect many rural and suburban areas to centralized treatment facilities.
Decentralized wastewater systems are defined as managed collection, treatment, and/or disposal and reuse of wastewater from individual homes, clusters of homes, isolated communities, industries or institutional facilities.
EPA's Voluntary National Guidelines for Managing Onsite and Clustered (Decentralized) Wastewater Treatment Systems provides information on the impacts of decentralized wastewater systems, the need for management, and five management program models that can be used by states and communities.
The Handbook describes a step-by-step approach to developing a community management program for decentralized wastewater systems. It is intended to help improve the performance of onsite and clustered treatment systems through better planning, design, siting, installation, operation, maintenance and other activities.
Onsite wastewater treatment systems (OWTS), also called septic systems, are useful and necessary for residents at locations that are removed from centralized wastewater treatment systems. When properly sited, designed, operated, and maintained, septic systems treat domestic wastewater to reduce its polluting impact on the environment and ...
Various states have approved advanced treatment methods for their decentralized wastewater systems. The following links to state web pages contain information about the advanced technology products approved for use in that state and the product approval process.