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Waste Treatment Associations and Professional Organization - Founded in 1964, the American Water Resources Association is a non-profit professional association dedicated to the advancement of men and women in water resources management, research, and education - For over 40 years, the Solid Waste Association of North America has been the leading professional association in the solid waste field. Our association serves over 7,200 members throughout North America , and thousands more with conferences, certifications, publications, and technical training courses - Represents companies providing solid, hazardous and medical waste collection, recycling and disposal services, remedial and oil spill clean-ups, and consulting services to the industry - Association for companies which design, build, distribute, and service equipment for the waste management industry - NACWA represents the interests of the country's wastewater treatment agencies, true environmental practitioners that serve the majority of the sewered population in the United States , and collectively treat and reclaim more than 18 billion gallons of wastewater each day - The Air & Waste Management Association (A&WMA) is a nonprofit, nonpartisan professional organization that provides training, information, and networking opportunities to thousands of environmental professionals in 65 countries - Your comprehensive guide to the full spectrum of environmental products & services, featuring 7'000 leading suppliers from 144 countries