Roger E. Renner, MGWC, is president of E.H. Renner & Sons Inc. He is the fourth of five generations of this family-owned business located in Elk River, Minnesota. Aside from the overall operation of this business, he is specifically responsible for the municipal, large well sealing, and monitoring markets. Renner is a 39-year member of NGWA. He successfully completed the Master Ground Water Contractor examination of the NGWA Voluntary Certification Program and is therefore entitled to use MGWC after his name. He is one of 70 contractors in this NGWA program qualified to take this special exam. He is also a past president of NGWA, past president of the Minnesota Water Well Association, and 25-year member and current Chair of the Minnesota Dept. of Health Advisory Council on Wells and Borings.