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The National Onsite Wastewater Recycling Association (NOWRA) is the largest U.S. organization representing the decentralized wastewater industry and plays a vital role among environmental health organizations. It also collaborates with various onsite wastewater associations to provide essential wastewater training services.
The National Association of Wastewater Technicians (NAWT) serves as a key player among environmental health organizations by providing national training and certification for inspectors and maintenance providers in the field. Additionally, NAWT collaborates with onsite wastewater associations to enhance wastewater training services.
The State Onsite Regulators Association (SORA) plays a crucial role in the regulatory community, focusing on the government oversight of onsite systems. It collaborates with various environmental health organizations and onsite wastewater associations to enhance standards and provide essential wastewater training services.
The National Environmental Health Association (NEHA), one of the prominent environmental health organizations, addresses septic systems within the scope of broader environmental health and sanitation standards. This includes collaboration with onsite wastewater associations to enhance wastewater training services.
The National Rural Water Association (NRWA) plays a vital role in supporting small and rural community wastewater programs, working closely with various environmental health organizations and onsite wastewater associations to provide essential wastewater training services.
The Water Environment Federation (WEF) serves as a global network of water quality professionals and is closely aligned with various environmental health organizations, offering dedicated decentralized wastewater resources, including onsite wastewater associations and wastewater training services.
A – D
Alabama: Alabama Onsite Wastewater Association (AOWA)
Alaska: No dedicated onsite wastewater association; oversight by Alaska Department of Environmental Conservation, which is part of the state's environmental health organizations.
Arizona: Arizona Onsite Wastewater Recycling Association (AzOWRA)
Arkansas: Arkansas Onsite Wastewater Association
California: California Onsite Wastewater Association (COWA)
Colorado: Colorado Professionals in Onsite Wastewater (CPOW)
Connecticut: No independent association; coordinated via CT Dept. of Public Health - Subsurface Sewage Program, supporting environmental health initiatives.
Delaware: Delaware Onsite Wastewater Recycling Association (DOWRA)
F – I
Florida: Florida Onsite Wastewater Association (FOWA)
Georgia: Georgia Onsite Wastewater Association (GOWA)
Hawaii: Managed by Hawaii Department of Health – Wastewater Branch, which oversees essential wastewater training services.
Idaho: Idaho Onsite Wastewater Association (IOWA)
Illinois: Illinois Association of Wastewater Agencies (IAWA)
Indiana: Indiana Onsite Wastewater Professionals Association (IOWPA)
Iowa: Iowa Onsite Waste Water Association (IOWWA)
K – M
Kansas: Kansas Small Flows Association (KSFA)
Kentucky: Kentucky Onsite Wastewater Association (KOWA)
Louisiana: Louisiana Onsite Wastewater Association (LOWA)
Maine: Maine Association of Site Evaluators (MASE)
Maryland: Maryland Onsite Wastewater Professionals Association (MOWPA)
Massachusetts: Massachusetts Onsite Wastewater Association (MOWA)
Michigan: Michigan Onsite Wastewater Recycling Association (MOWRA)
Minnesota: Minnesota Onsite Wastewater Association (MOWA)
Mississippi: Mississippi Onsite Wastewater Association (MSOWA)
Missouri: Missouri Smallflows Organization (MSO)
Montana: Montana Onsite Wastewater Association (MOWWA)
N – P
Nebraska: Nebraska Onsite Wastewater Association (NOWA)
Nevada: Nevada Onsite Wastewater Association (NOWA)
New Hampshire: Granite State Designers and Installers (GSDI)
New Jersey: New Jersey Septic Management Group (NJSMG)
New Mexico: New Mexico Onsite Wastewater Association (NMOWA)
New York: New York Onsite Wastewater Treatment Education Program (OTEP)
North Carolina: North Carolina Onsite Wastewater Contractors & Inspectors Association (NCOCIA)
North Dakota: Oversight by ND Department of Environmental Quality – Wastewater Program, integral to local environmental health organizations.
Ohio: Ohio Onsite Wastewater Association (OOWWA)
Oklahoma: Oklahoma Onsite Wastewater Association (OOKWA)
Oregon: Oregon Onsite Wastewater Association (O2WA)
Pennsylvania: Pennsylvania Association of Sewage Enforcement Officers (PASEO)
R – W
Rhode Island: Rhode Island Onsite Wastewater Training Program (OWTS), providing essential wastewater training services.
South Carolina: South Carolina Onsite Wastewater Association (SCOWA)
South Dakota: South Dakota Onsite Wastewater Association (SDOWWA)
Tennessee: Tennessee Onsite Wastewater Association (TOWA)
Texas: Texas Onsite Wastewater Association (TOWA)
Utah: Utah Onsite Wastewater Association (UOWA)
Vermont: Vermont Wastewater Program – Agency of Natural Resources, which collaborates with environmental health organizations.
Virginia: Virginia Onsite Wastewater Recycling Association (VOWRA)
Washington: Washington Onsite Sewage Association (WOSSA)
West Virginia: West Virginia Onsite Wastewater Association (WVOWA)
Wisconsin: Wisconsin Onsite Water Recycling Association (WOWRA)
Wyoming: Wyoming Onsite Wastewater Recycling Association (WYOWA)
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