Sny Magill Source Pollution Monitoring Project, Clayton County, Iowa: Water Year 1994, L. S. Seigley, G. Wunder, S. A. Gritters, T. F. Wilton, J. E. May, M. W. Birmingham, M. D. Schueller, N. Rolling, and J. Tisl, May 1996, 85 p., 23 figs, 23 tables, 2 appendices. The Technical Information Series presents research results on a wide variety of geological studies. As its name implies, the series requires that the reader have some background in geologic concepts and terminology.