Contractor Training Store, LLC. is based in Lincoln, Illinois. It is owned and operated by Douglas J. Ebelherr, R.S., L.E.H.P. Doug has over 48 years' experience in onsite wastewater training for both environmental health professionals and onsite wastewater contractors. He has coordinated and provided onsite wastewater and public health training at the local, state and national levels and is a national leader in the onsite wastewater field. Doug has extensive field experience and regulatory agency background as well as over 20 years of private industry experience.