(1985) Hydrogeologic Observations from Multiple Core Holes and Piezometers in the Devonian-Carbonate Aquifers in Floyd and Mitchell Counties, IA. University of Iowa
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OFR-1985-2.pdf File Size:8MB |
Abstract
Previous investigations in northeast and north-central Iowa have identified areas where surficially derived contaminants, particularly nitrates and commonly-used pesticides, have caused degradation of groundwater quality (Hallberg and Hoyer, 1982; Hallberg et a!., 1983, 1984; Libra et al., 1984). These studies showed that the depth to bedrock aquifers, and the presence or absence of karst features, have a major influence on the potential for surficial contaminants to reach groundwater. Geologic regions based on these criteria were delineated.
| Item Type: | Departmental Report |
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| Keywords: | Iowa Counties, Investigative Reports, aeromagnetic maps, subsurface rock, gravity data, groundwater |
| Subjects: | Natural resources and environment Natural resources and environment > Earth sciences Natural resources and environment > Maps and gazetteers |
| ID Code: | 26430 |
| Deposited By: | Margaret Barr |
| Deposited On: | 29 Jan 2018 14:11 |
| Last Modified: | 29 Jan 2018 14:11 |
| URI: | https://publications.iowa.gov/id/eprint/26430 |