Types of Sampling

Water quality isn't as simple as measuring a single parameter. Rather the quality of water relies on several chemical, physical, and biological measures. It is only through a combination of these measures where a complete picture of a water body's health can be obtained. The United States Environmental Protection Agency conducted sampling at three locations on each of 12 different streams in the metropolitan area (for more information regarding site selection click here). The sampling was conducted in accordance with an approved Quality Assurance Project Plan, and was conducted using existing protocols employed by the Agency. Several different types of monitoring data were collected at each of the 36 sampling locations. These include:

  • Macroinvertebrates
  • Fish assemblage
  • Periphyton and Phytoplankton (algae)
  • Water Chemistry (laboratory)
  • Water Chemistry (in situ)
  • Sediment Chemistry and
  • Habitat