ON THIS DAY: The eastern Iowa "Corn Belt Derecho of 1998" | KGAN
State of Iowa heating oil and propane program, 1997--1998 winter heating season: Final report - UNT Digital Library
USGS Scientific Investigations Report 2008-5108: Effectiveness of an Alluvial Wetland on Improving Ground-Water Quality in a Municipal Well Field, Cedar Rapids, Iowa, 1998–2006