Station name
Date and time
Water Level/Flow Parameters
Reservoir storage, acre-ft (12 sites)
Streamflow, ft³/s (242 sites)
Gage height, ft (228 sites)
Groundwater level above NGVD 1929, ft (14 sites)
Groundwater level above NAVD 1988, ft (20 sites)
Lake or reservoir water surface elevation above NGVD 1929, ft (11 sites)
Lake or reservoir water surface elevation above NAVD 1988, ft (1 sites)
Long-term mean daily streamflow, ft³/s
Long-term median daily streamflow, ft³/s
Water Quality Parameters
Temperature, water, °C (48 sites)
Oxidation reduction potential, mV (1 sites)
Specific conductance, water, unfiltered, µS/cm at 25 °C (47 sites)
Dissolved oxygen, water, unfiltered, mg/L (32 sites)
Dissolved oxygen, water, unfiltered, %saturation (25 sites)
pH, water, unfiltered, field, standard units (34 sites)
Colored dissolved organic matter (CDOM), water, in situ, single band excitation, fluorescence emission, ppb QSE (7 sites)
Chlorophylls, water, in situ, fluorometric method, excitation at 470 +-15 nm, emission at 685 +-20 nm, relative fluorescence units, RFU (6 sites)
Phycocyanins (cyanobacteria), water, in situ, fluorometric method, excitation at 590 +-15 nm, emission at 685 +-20 nm, relative fluorescence units, RFU (6 sites)
Colored dissolved organic matter (CDOM), water, in situ, fluorometric method, relative fluorescence units (RFU) (2 sites)
Chlorophyll, total, water, fluorometric, 650-700 nanometers, in-situ sensor, µg/L (5 sites)
Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +/-2.5 degrees, FNU (35 sites)
Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detector angles at 90 +/- 2.5 degrees and 30 +/- 15 degrees, ratiometric, FBRU (2 sites)
Cyanobacteria (blue-green algae), YSI in-vivo fluorescence of phycocyanin, excitation - 595, emission - 650 nm, cells/mL (2 sites)
Nitrate plus nitrite, water, in situ, mg/L as N (8 sites)