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USGS Surface-Water Annual Statistics for the Nation

USGS 05474500 Mississippi River at Keokuk, IA


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USGS 05474500 Mississippi River at Keokuk, IA
Period of Approved Daily-Mean Data (Water Year)
  Parameter Code Parameter Name From To Count
00010 Temperature, water, degrees Celsius 2021 2024 992
00060 Discharge, cubic feet per second 1878 2024 53362
00095 Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius 2021 2024 862
00300 Dissolved oxygen, water, unfiltered, milligrams per liter 2021 2023 837
32318 Chlorophylls, water, in situ, fluorometric method, excitation at 470 +-15 nm, emission at 685 +-20 nm, micrograms per liter 2021 2024 866
63680 Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU) 2021 2024 865
 
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