Dennis K Demcheck

• Chemical, tissue, and physical data from water and bottom material in the lower Calcasieu River, Louisiana, 1985-88
• Selected water-quality data for the lower Mississippi River, Bonnet Carré Spillway, and Lake Pontchartrain area, Louisiana, April through June and 1974-84
• Water-quality characteristics of urban storm runoff at selected sites in East Baton Rouge Parish, Louisana, April 1993 through June 1995