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<br />C~ <br />;::;l <br />~ <br /> <br />c::: <br /> <br />Table 1.--Water and bottom-sediment quality at selected sites, August 17-19, 1976 <br /> <br />Ul <br />C.Jl <br /> <br />Variable <br /> <br />Water temperature, degrees Celsius----- <br /> <br />Spec' f-i c conductance, m i cromhos per <br />centimeter at 25 degrees Celsius----- <br /> <br />Dissolved oxygen, milligrams per liter- <br /> <br />Dissolved oxygen, percent saturation--- <br /> <br />pH, standard units--------------------- <br /> <br />Discharge, cubic meters per second----- <br /> <br />'-I <br /> <br />Trace-element concentration <br />in bottom sediments <br />(micrograms per gram) <br /> <br />Antimony------------------------------- <br /> <br />Arsenic-------------------------------- <br /> <br />Chromium------------------------------- <br /> <br />Copper--------------------------------- <br /> <br />Iron----------------------------------- <br /> <br />Lead----------------------------------- <br /> <br />Mercury-------------------------------- <br /> <br />Nickel--------------------------------- <br /> <br />Siten <br />Day-n <br />Time-- <br /> <br />1 <br />17 <br />0800 <br /> <br />8 <br />17 <br />1830 <br /> <br />Sampling site <br /> <br />17 <br />18 <br />1700 <br /> <br />21.5 <br /> <br />445 <br />7.6 <br />106 <br />8.8 <br />9.4 <br /> <br />o <br />o <br />3 <br />2 <br />2,400 <br /> <br /><10 <br /> <br />.16 <br />5 <br /> <br />28 <br />19 <br />0900 <br /> <br />19.0 <br /> <br />475 <br />7.5 <br />97 <br />8.5 <br />10.0 <br /> <br />o <br />5 <br />6 <br />9 <br />5,500 <br />20 <br /> <br />.18 <br /> <br />15 <br /> <br />43 <br />19 <br />1900 <br /> <br />21.0 <br /> <br />495 <br />8.0 <br />108 <br />8.6 <br />10.1 <br /> <br />o <br /> <br />3 <br />2 <br /> <br /><2 <br />2,600 <br /><20 <br /> <br /><10 <br /> <br />Range of concentrations <br />in streams of the Yampa <br />River basin, August- <br />September 1976 <br /> <br />,02 <br /> <br />o <br /> <br />0-13 <br /> <br />2-16 <br /> <br />3-16 <br /> <br />1,600-11,000 <br /> <br /><10-30 <br /> <br />.05- ,.28 <br /> <br />4-30 <br /> <br />15.0 <br /> <br />18.5 <br /> <br />., <br /> <br />445 <br />7.4 <br />90 <br />8.6 <br />10.6 <br /> <br />450 <br />7.8 <br />103 <br />8,4 <br />9.8 <br /> <br />o 0 <br />o 5 <br />2 7 <br />2 12 <br />1,500 6,500 <br /><10 20 <br />.09 .35 <br /><10 15 <br />