By S.A. Frenzel, R.B. Swanson, T.L. Huntzinger, J.K. Stamer, P.J. Emmons, and R.B. Zelt
U.S. GEOLOGICAL SURVEY CIRCULAR 1163
A contribution of the National Water-Quality Assessment (NAWQA) Program
Throughout this report, numbers in brackets  refer to References.
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Last modified: Wednesday, November 23 2016, 12:07:37 PM