Station name
Date and time
Water Level/Flow Parameters
Reservoir storage, acre-ft (23 sites)
Streamflow, ft³/s (674 sites)
Elevation of reservoir water surface above datum, ft (6 sites)
Gage height, ft (796 sites)
Streamflow, gal/min (2 sites)
Lake or reservoir water surface elevation above NGVD 1929, ft (113 sites)
Lake or reservoir water surface elevation above NAVD 1988, ft (53 sites)
Estuary or ocean water surface elevation above NGVD 1929, ft (2 sites)
Estuary or ocean water surface elevation above NAVD 1988, ft (1 sites)
Stream water level elevation above NGVD 1929, in ft (8 sites)
Stream water level elevation above NAVD 1988, in ft (6 sites)
Depth to water level, ft below land surface (69 sites)
Streamflow, tidally filtered, ft³/s (6 sites)
Mean Stream velocity from field sensor, ft/s (27 sites)
Mean Stream velocity, ft/s (5 sites)
Mean water velocity for discharge computation, mph (3 sites)
Lake or reservoir elevation above local mean sea level (LMSL), ft (1 sites)
Water surface elevation difference between two locations,ft (1 sites)
Long-term mean daily streamflow, ft³/s
Long-term median daily streamflow, ft³/s
Water Quality Parameters
Temperature, water, °C (119 sites)
Specific conductance, water, unfiltered, µS/cm at 25 °C (115 sites)
Dissolved oxygen, water, unfiltered, mg/L (65 sites)
pH, water, unfiltered, field, standard units (67 sites)
Salinity, water, unfiltered, parts per thousand (15 sites)
Chlorophyll a, estimated, water, in-situ, in-vivo fluorescence, concentration estimated from reference material, µg/L (2 sites)
Phycocyanins (cyanobacteria), water, in situ, fluorometric method, excitation at 590 +-15 nm, emission at 685 +-20 nm, relative fluorescence units, RFU (2 sites)
Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +/-2.5 degrees, FNU (34 sites)
Suspended sediment load, water, unfiltered, computed, the product of regression-computed suspended sediment concentration and streamflow, tons/day (1 sites)
Salinity, water, unfiltered, practical salinity units at 25 °C (2 sites)
Nitrate plus nitrite, water, in situ, mg/L as N (10 sites)
Suspended sediment concentration, water, unfiltered, estimated by regression equation, mg/L (1 sites)