| Water Level/Flow Parameters |
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Streamflow, ft³/s (696 sites) |
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Elevation of reservoir water surface above datum, ft (1 sites) |
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Gage height, ft (752 sites) |
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Groundwater level above NGVD 1929, ft (366 sites) |
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Groundwater level above NAVD 1988, ft (210 sites) |
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Lake or reservoir water surface elevation above NGVD 1929, ft (10 sites) |
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Lake or reservoir water surface elevation above NAVD 1988, ft (1 sites) |
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Estuary or ocean water surface elevation above NAVD 1988, ft (16 sites) |
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Stream water level elevation above NGVD 1929, in ft (21 sites) |
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Stream water level elevation above NAVD 1988, in ft (289 sites) |
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Direction of stream flow, magnetic azimuth, degrees (2 sites) |
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Elevation above NGVD 1929, ft (18 sites) |
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Reservoir storage, thousand acre feet (1 sites) |
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Streamflow, tidally filtered, ft³/s (75 sites) |
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Mean Stream velocity from field sensor, ft/s (5 sites) |
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Mean Stream velocity, ft/s (141 sites) |
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Tidal elevation, NOS-averaged, NAVD88, ft (1 sites) |
| Water Quality Parameters |
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Temperature, water, °C (285 sites) |
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Specific conductance, water, unfiltered, µS/cm at 25 °C (239 sites) |
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Dissolved oxygen, water, unfiltered, mg/L (53 sites) |
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pH, water, unfiltered, field, standard units (26 sites) |
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Salinity, water, unfiltered, parts per thousand (114 sites) |
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Colored dissolved organic matter (CDOM), water, in situ, single band excitation, fluorescence emission, ppb QSE (8 sites) |
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Chlorophyll a, estimated, water, in-situ, in-vivo fluorescence, RFU (2 sites) |
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Phycocyanins (cyanobacteria), water, in situ, fluorometric method, excitation at 590 +-15 nm, emission at 685 +-20 nm, relative fluorescence units, RFU (2 sites) |
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Chlorophyll, total, water, fluorometric, 650-700 nanometers, in-situ sensor, µg/L (1 sites) |
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Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +/-2.5 degrees, FNU (27 sites) |
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Nitrate plus nitrite, water, in situ, mg/L as N (35 sites) |
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Residue, dissolved, water, filtered, estimated by regression equation, mg/L (1 sites) |