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South Dakota WSC


NRTWQ Home >> South Dakota >> Constituents

Constituents Measured or Computed Continuously in South Dakota

Continuous measurements of constituents (water-quality parameters) can be obtained by direct measurement using sensors, or by indirect computation using models.

Below is a list of constituents continuously measured or computed by the USGS in South Dakota. Click on a constituent for more detailed information, including a list of where it is measured or computed.

Constituent Name Units Criteria
Dissolved oxygen milligrams per liter (mg/L)
pH standard units (std units)
Specific conductance at 25 degrees Celsius microsiemens per centimeter (uS/cm)
Suspended sediment concentration, water, unfiltered, estimated by regression equation milligrams per liter (mg/L)
Turbidity, measured as NTU or FNU formazin nephelometric units (FNU)
Water temperature degrees Celsius (°C)