Station name
Date and time
Water Level/Flow Parameters
Reservoir storage, acre-ft (1 sites)
Streamflow, ft³/s (415 sites)
Elevation of reservoir water surface above datum, ft (17 sites)
Gage height, ft (400 sites)
Lake or reservoir water surface elevation above NGVD 1929, ft (4 sites)
Lake or reservoir water surface elevation above NAVD 1988, ft (12 sites)
Stream water level elevation above NAVD 1988, in ft (105 sites)
Depth to water level, ft below land surface (78 sites)
Streamflow, tidally filtered, ft³/s (1 sites)
Mean Stream velocity from field sensor, ft/s (2 sites)
Atmospheric water vapor pressure, calculated, millibars (1 sites)
Long-term mean daily streamflow, ft³/s
Long-term median daily streamflow, ft³/s
Water Quality Parameters
Temperature, water, °C (155 sites)
Temperature, water, °F (3 sites)
Total partial pressure of dissolved gases, water, unfiltered, mmHg (1 sites)
Total partial pressure of dissolved gases, water, unfiltered, percent of saturation (1 sites)
Specific conductance, water, unfiltered, µS/cm at 25 °C (99 sites)
Dissolved oxygen, water, unfiltered, mg/L (64 sites)
Dissolved oxygen, water, unfiltered, %saturation (17 sites)
pH, water, unfiltered, field, standard units (63 sites)
Colored dissolved organic matter (CDOM), water, in situ, single band excitation, fluorescence emission, ppb QSE (1 sites)
Chlorophyll a, estimated, water, in-situ, in-vivo fluorescence, RFU (3 sites)
Chlorophyll a, estimated, water, in-situ, in-vivo fluorescence, concentration estimated from reference material, µg/L (1 sites)
Chlorophylls, water, in situ, fluorometric method, excitation at 470 +-15 nm, emission at 685 +-20 nm, ug/L (1 sites)
Phycocyanins (cyanobacteria), water, in situ, fluorometric method, excitation at 590 +-15 nm, emission at 685 +-20 nm, µg/L (1 sites)
Chlorophylls, water, in situ, fluorometric method, excitation at 470 +-15 nm, emission at 685 +-20 nm, relative fluorescence units, RFU (1 sites)
Phycocyanins (cyanobacteria), water, in situ, fluorometric method, excitation at 590 +-15 nm, emission at 685 +-20 nm, relative fluorescence units, RFU (1 sites)
Colored dissolved organic matter (CDOM), water, in situ, fluorometric method, relative fluorescence units (RFU) (1 sites)
Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +/-2.5 degrees, FNU (52 sites)
Suspended sediment load, water, unfiltered, computed, the product of regression-computed suspended sediment concentration and streamflow, tons/day (13 sites)
Suspended sediment concentration, water, unfiltered, at a fixed point in stream, estimated by a regression equation with turbidity, mg/L (1 sites)
Nitrate plus nitrite, water, in situ, mg/L as N (13 sites)
Chloride, water, unfiltered, mg/L (3 sites)
Suspended sediment concentration, water, unfiltered, estimated by regression equation, mg/L (12 sites)
Total nitrogen [nitrate + nitrite + ammonia + organic-N], water, unfiltered, estimated by regression equation, mg/L (6 sites)
Phosphorus, water, unfiltered, estimated by regression equation,mg/L as phosphorus (6 sites)