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Pennsylvania Real-time Water Quality


NRTWQ Home >> Pennsylvania >> Constituents

Constituents Measured or Computed Continuously in Pennsylvania

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 Pennsylvania. Click on a constituent for more detailed information, including a list of where it is measured or computed.

Constituent Name Units Criteria
Computed discharge cubic feet per second (cfs)
Fecal coliform bacteria colonies per 100 milliliters (cfu/100mL)
Suspended sediment concentration, water, unfiltered, estimated by regression equation milligrams per liter (mg/L)
Turbidity, measured as NTU or FNU formazin nephelometric units (FNU)