1. Occurrence and distribution of nitrate and herbicides in the Iowa River alluvial aquifer, Iowa--May 1984 to November 1985 Author/Creator: Detroy, Mark G., author Publication/Creation: Iowa City, Iowa : U.S. Geological Survey, 1988 Resource Type: Book Access & Availability: Loading
2. Hydrology of the alluvial, buried channel, basal Pleistocene and Dakota aquifers in west-central Iowa Author/Creator: Runkle, Donna L., author Publication/Creation: [Reston, Virginia?] : U.S. Geological Survey, [1985] Resource Type: Book Access & Availability: Loading