NONPOINT SOURCE SUCCESS STORY Project Restores Aquatic Life in Tete des Morts Creek
Tete des Morts Creek in Jackson County experienced a fish kill in
2005, and biological samples collected in 2001 showed a decline
in the biological community of benthic macroinvertebrates. As a result, the Iowa Department of
Natural Resources (DNR) placed the creek on Iowa’s impaired waters list in 2006. Nutrients and
increased sediment delivery were identified as pollutants of concern in the watershed. Through
the Tete des Morts Watershed Project, farmers and landowners installed conservation practices
that reduced nutrients and sediment reaching the creek and improved the habitat for aquatic life.
Monitoring shows Tete des Morts now meets the impairment delisting criteria for both the benthic
macroinvertebrates and fish. Therefore, Iowa DNR removed the creek from the impaired waters list
in the 2022 cycle due to the recovery of the biological community.
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