The SEFA Group The SEFA Group 217 Cedar Road Lexington, SC 29073 (804) 380-8078 Fax: (804) 569-1793 Hank Keiper, P.E. hkeiper@sefagroup.com Web Site: www.sefagroup.com Products Supplier of fly ash Print This PageShare this:TwitterFacebookLike this:Like Loading...