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<br />....;!t.',. , <br />..^ .....,\"u;, <br /> <br />CONTENTS <br /> <br />5.0 Reconnaissance of surface-water quality--Continued <br />5.2 Water quality--Continued <br /> <br />5.2.3 Stream temperature, pH, and percent saturation <br />of dissolved oxygen-----------~------------------------ 32 <br />Kenneth J. Covay <br /> <br />Page <br /> <br />5.2.4 Algal-growth potential and nutrients-------------------- 34 <br />Kenneth J. Covay <br /> <br />5.2.5 Trace elements----------------------------------________ 36 <br /> <br />5.2.5.1 Concentrations in bed material-------------------- 36 <br />Kenneth J. Covay <br /> <br />5.2.5.2 Total-recoverable concentrations------------------ 38 <br />KennethJ.Covay <br /> <br />6.0 Historic quality of surface water------------------------------- 40 <br />6.1 Oissolved sol ids----~~--------h----------~--___~____________ 40 <br /> <br />6.1.1 General analysis-----------------------------------__~-- 40 <br />Jeanne M. Boyle <br /> <br />6.1.2 Computational metnods----------------------~------------ 46 <br />Jeanne M. Boyle <br /> <br />6.1.3 Possible dissolved-solids changes----------------------- 50 <br />Jeanne M. Boyle <br /> <br />6.2 Watertemperature---------------~----------------~----------- 54 <br /> <br />6.2.1 General analysis-------------------~-------------------- 54 <br />Jeanne M. Boyle <br /> <br />6.2.2 Harmonic characteristics versus elevation--------------- 58 <br />Jeanne M. Boyle <br /> <br />6.2.3 Air-temperature relations------------------------------- . 60 <br />Jeanne M. Boyle <br /> <br />6.3 Suspended sediment--h---h---------h--~h-----,------------- 64 <br />Kenneth J. Covay <br /> <br />6.4 Major i norgani c const i tuents--------------------------------- 66 <br />Kenneth J. Covay <br /> <br />6.5 Benthic invertebrates---------------~------------------------ 70 <br />Kenneth J. Covay <br /> <br />iv <br />