formly Gass Trenching OPPAHL FULDA, MN FARM DRAINAGE, LLC GARRETT OPDAHL, OWNER Cell: 507-227-3703 email: Opdahldrainage@gmail.com formly Gass Trenching OPPAHL FULDA , MN FARM DRAINAGE , LLC GARRETT OPDAHL , OWNER Cell : 507-227-3703 email : Opdahldrainage@gmail.com