water quality, acid mine drainage, Iowa streams
In the spring and summer of 1976, a water-sampling program was carried out on the streams of Marion and Mahaska counties, where a significant portion of the coal mining in Iowa has occurred. Streams with underground mines or combinations of underground and surface mines in their watersheds had decreased values for alkalinity and increased values for specific conductance and sulfates, indicating the presence of acid mine drainage. Unless reclamation procedures are incorporated into standard mining operations, an expansion of Iowa coal mining could lead to an increase in the severity of this problem.
Proceedings of the Iowa Academy of Science
© Copyright 1979 by the Iowa Academy of Science, Inc.
Nesler, Thomas P. and Bachmann, Roger W.
"Influence of Coal Mining on Water Quality in Marion and Mahaska Counties, Iowa,"
Proceedings of the Iowa Academy of Science, 86(4), 149-153.
Available at: https://scholarworks.uni.edu/pias/vol86/iss4/9