Monitoring Water Quality on Hoover Creek as it Flows Into Herbert Hoover National Historic Site, West Branch, Iowa
Foreman K. 2007. Monitoring Water Quality on Hoover Creek as it Flows Into Herbert Hoover National Historic Site, West Branch, Iowa. Iowa Department of Natural Resources (IDNR), Water Monitoring Section
Through the duration of the monitoring project, the Hoover Creek watershed experienced above normal temperatures and dry conditions in 2005 and 2006. Sampling ceased for a large portion of 2005 due to the stream becoming dry. Hoover Creek can be characterized as having a very flashy flow regime with generally baseflow conditions that are interrupted by brief, highflow events. The consequence of such a flashy system is reflected in low biological and physical integrity. A physical assessment of the stream characterized the creek as having poor physical integrity due to the accelerated amount of hydrologic alteration, absence of pools and canopy cover, and the embeddedness of the substrate within the stream. This embeddedness decreases the stability, quality, quantity, and diversity of microhabitats available to aquatic life. As such, the diversity of benthic macroinvertebrate populations found in Hoover Creek was low and most of the organisms found were pollution tolerant and able to adapt to extreme changes in their physical environment.
- Type
- Published Report
- Authors
- Foreman, K.L.
- Date of Issue
- 2007-01
- Publisher
- Iowa Department of Natural Resources (IDNR), Water Monitoring Section
- Units
- HEHO
- Keywords
- iowa, watershed