The Water Quality Monitoring Section assesses the biological health of Missouri’s rivers and streams, and monitors water and sediment quality throughout the state.  The section includes the aquatic biological assessment and water monitoring units. The section works in support of the Water Protection Program to ensure that Missourians will always have clean water for drinking, recreation, tourism and continued economic growth. Staff travel to all areas of the state conducting a variety of investigations such as:

  • Wastewater discharge monitoring
  • Groundwater monitoring
  • Electrofishing
  • Stream surveys

The section often assists with special projects such as enforcement actions, environmental risk assessments or damage assessments resulting from chemical spills. Staff collects and evaluates a wide variety of water, sediment and macroinvertebrate samples. The results of these studies are used to make certain that the rivers, streams and lakes of Missouri remain a treasure for all to enjoy.

Aquatic Biological Monitoring Unit

  • Bioassessment Reports
  • Biological Criteria Database
  • Macroinvertebrate Samples Database
  • Standard Operating Procedures and Project Procedures
  • Sample Maps

Water Quality Monitoring Unit

  • Projects
  • Analyses Performed

Special Studies

Lake of the Ozarks E. coli Sampling

    The Water Quality Monitoring Unit, working with volunteers from the Lake Ozark Watershed Alliance, collected E. coli samples from 118 coves throughout the lake starting in 2007 and ending in 2011.  The unit analyzed 1619 samples collected during the study.  Annual geometric means for the survey ranged from 3.0 to 8.8 colonies per 100 milliliters of water.

East Fork Locust Creek/Locust Creek E. coli Study

Hinkson Creek Stream Study 2003 - 2006

Big River Sediment Study

Additional Information