Find onsite wastewater, septic, and wastewater recycling associations by state, region, and national organization. Use this list to connect with training groups, industry organizations, and professional resources across the U.S. and Canada.
Alabama
Alabama Onsite Wastewater Association
www.aowainfo.org; 334-396-3434
Arizona
Arizona Onsite Wastewater Recycling Association
www.azowra.org; 928-443-0333
California
California Onsite Wastewater Association
www.cowa.org; 530-513-6658
Colorado
Colorado Professionals in Onsite Wastewater
www.cpow.net; 720-626-8989
Connecticut
Connecticut Onsite Wastewater Recycling Association
www.cowra-online.org; 860-267-1057
Delaware
Delaware On-Site Wastewater Recycling Association
www.dowra.org
Florida
Florida Onsite Wastewater Association
myfowa.com; 863-845-5262
Georgia
Georgia Onsite Wastewater Association
gowa.wildapricot.org; 706-407-2552
Southeastern FOG Alliance
www.southeasternfogalliance.org
Illinois
Onsite Wastewater Professionals of Illinois
www.owpi.org
Indiana
Indiana Onsite Wastewater Professionals Association
www.iowpa.org; 317-965-1859
Iowa
Iowa Onsite Waste Water Association
www.iowwa.com; 515-225-1051
Kansas
Kansas Small Flows Association
www.ksfa.org; 785-823-5295
Kentucky
Kentucky Onsite Wastewater Association
www.kyonsite.com; 502-352-2575
Maine
Maine Association of Site Evaluators
www.mainese.com
Maine Association of Professional Soil Scientists
www.mapss.org
Maryland
Maryland Onsite Wastewater Professionals Association
www.mowpa.org; 443-570-2029
Michigan
Michigan Onsite Wastewater Recycling Association
mowra.net
Michigan Septic Tank Association
www.msta.biz; 989-808-8648
Minnesota
Minnesota Onsite Wastewater Association
www.mowa-mn.com; 612-361-9629
Missouri
Missouri Smallflows Organization
www.mosmallflows.org; 417-631-4027
Nebraska
Nebraska On-site Waste Water Association
www.nowwa.org; 402-476-0162
New England
Yankee Onsite Wastewater Assoc. (Massachusetts, Connecticut, Maine, New Hampshire, Rhode Island and Vermont)
www.yankeeonsite.org; 781-939-5710
New Hampshire
New Hampshire Association of Septage Haulers
www.nhash.com; 603-619-8868
Granite State Designers and Installers Association
gsowa.org; 603-228-1231
New Mexico
Professional Onsite Wastewater Reuse Association of New Mexico
powranm.com; 505-379-2293
New York
Long Island Liquid Waste Association, Inc.
www.lilwa.org; 631-585-0448
North Carolina
North Carolina Septic Tank Association
www.ncsta.net; 336-416-3564
North Dakota
North Dakota Onsite Wastewater Recycling Association
ndowra.org; 701-331-2400
Ohio
Ohio Onsite Wastewater Association
www.ohioonsite.org; 740-828-3000
Oklahoma
Oklahoma Onsite Wastewater Association
ooaok.org; 918-727-7113
Oregon
Oregon Onsite Wastewater Association
www.o2wa.org; 541-389-6692
Pennsylvania
Pennsylvania Association of Sewage Enforcement Officers
www.pa-seo.org; 717-761-8648
Pennsylvania Onsite Wastewater Recycling Association
www.powra.org
Pennsylvania Septage Management Association
www.psma.net; 717-763-7762
South Carolina
South Carolina Onsite Wastewater Association
www.scowa.org; 803-877-7388
Tennessee
Tennessee Onsite Wastewater Association
www.tnonsite.org
Texas
Texas On-Site Wastewater Association
www.txowa.org
Utah
Utah Onsite Wastewater Association
www.uthonsite.org
Virginia
Virginia Onsite Wastewater Recycling Association
www.vowra.org; 540-885-8500
Washington
Washington On-Site Sewage Association
www.wossa.org; 253-770-6594
Wisconsin
Wisconsin Onsite Water Recycling Association
www.wowra.com; 888-782-6815
Wisconsin Liquid Waste Carriers Association
wlwca.wildapricot.org
NATIONAL
Water Environment Federation
www.wef.org; 800-666-0206
National Onsite Wastewater Recycling Association
www.nowra.org; 978-496-1800
National Association of Wastewater Technicians
www.nawt.org; 800-236-6298
CANADA
Alberta
Alberta Onsite Wastewater Management Association
www.aowma.com; 877-489-7471
British Columbia
WCOWMA Onsite Wastewater Management of B.C.
www.wcowma-bc.com; 855-872-2645
British Columbia Onsite Sewage Association
www.bcossa.org; 778-432-2120
Manitoba
Manitoba Onsite Wastewater Management Association
www.mowma.org; 855-872-2659
Nova Scotia
Waste Water Nova Scotia Society
www.wwns.ca; 902-578-3268
Ontario
Ontario Onsite Wastewater Association
www.oowa.org; 855-905-6692
Ontario Association of Sewage Industry Services
www.oasisontario.on.ca
Saskatchewan
Saskatchewan Onsite Wastewater Management Association
www.sowma.ca; 855-872-2650
Canadian Regional
Western Canada Onsite Wastewater Management Association
www.wcowma.com
