EPA Eastern Lake Survey original data for the Upper Midwest Region 1984

Overton, W. S., P. Kanciruk, L. A. Hook, J. M. Eilers, D. H. Landers, D. F. BRAKKE, R.
A. Linthurst, and M. D. DeHaan. 1986. Characteristics of lakes in the Eastern United States.
Vol. 2. Lakes sampled and descriptive statistics for physical and chemical variables. US EPA
600/4-86/007B. 369 p. The Eastern Lake Survey-Phase I (ELS-I), conducted in the fall of
1984, was the first part of a long-term effort by the U.S. Environmental Protection Agency
known as the National Surface Water Survey. It was designed to synoptically quantify the
acid-base status of surface waters in the United States in areas expected to exhibit low
buffering capacity. The effort was in support of the National Acid Precipitation Assessment
Program (NAPAP). The survey involved a three-month field effort in which 1612 probability
sample lakes and 186 special interest lakes in the northeast, southeast, and upper midwest
regions of the United States were sampled. This dataset includes data on 592 lakes in
Michigan, Minnesota and Wisconsin. Number of sites: 592