American Water Works Association (AWWA)
Code of Federal Regulations (CFR)
Illinois Environmental Protection Agency (IEPA)
Indiana Department of Environmental Management (IDEM)
Indiana Department of Natural Resources (DNR)
Indiana Water Environment Association (IWEA)
Kentucky Department for Environmental Protection (DEP)
Kentucky Water and Wastewater Operators' Association (KWWOA)
Southern Indiana Operators Association (SIOA)
United States Environmental Protection Agency (USEPA)