What's the problem with Walnut Creek?
Walnut Creek was placed on Iowa's impaired waters list in 2002 due to its inability to support aquatic life, such as fish and insects. This problem has been traced to excess soil and nutrients in the water. Each year, erosion causes 30,000 pounds of phosphorus to wash into Walnut Creek. It also washes in enough sediment each year to fill a line of dump trucks seven miles long. Livestock can also contribute to the erosion of the streambank, and their waste may lead to high levels of bacteria and ammonia. Large amounts of ammonia can be lethal to aquatic life.
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What's being done to help Walnut Creek?
The Walnut Creek Watershed Project has been underway since January 2008. The project is working with landowners to install conservation practices such as:
- Terraces-Terraces built around a hillside either slow runoff and guide it to the bottom of the hill, or collect runoff and store it until the runoff can be absorbed by the ground.
- Grade stabilization structures- These artificial or natural structures (like ponds or dams) built across water channels reduce water flow and slow gully erosion.
- Water and sediment control basins- Basins constructed across gullies trap sediment and pollutants and keep them from reaching the stream.
- Grassed waterways- The vegetation in these natural or artificial water channels slows the speed of surface water, protecting the land around streambanks from erosion.
- Livestock management-Limiting livestock access to the stream through fences and rotational grazing results in fewer pollutants reaching the streams and less streambank erosion.
- Buffers and Filter strips- Strips of grass or other vegetation trap sediment and pollutants and slow water runoff to reduce rill and gully erosion.
- Streambank stabilization- Structures, such as rocks or vegetation planted along the creek's edge, counter streambank erosion.
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What can you do to help?
Landowners can partner with the Walnut Creek Watershed Project to use conservation practices on their land. Jeremy Saugstad, project coordinator, can help landowners decide which projects would work best for their land and the creek. Financial assistance may be available for those looking to begin these projects. Contact Saugstad at (641) 528-2065 or Jeremy.Saugstad@ia.nacdnet.net to learn more.
Residents can also participate in water monitoring through the IOWATER program. Through this voluntary program, residents are trained and equipped with water sampling kits in order to test the quality of water in their area. The information collected is submitted to an online database which the public can view. Visit the IOWATER website to learn more.
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What is the future of Walnut Creek?
The project aims to reduce soil reaching the stream by 3,205 tons per year and reduce phosphorus reaching the stream by 4,167 pounds per year. Working with the Walnut Creek Watershed Project to accomplish these goals, landowners and residents can help improve the quality of the creek so that wildlife can thrive and future generations can enjoy the creek for years to come.
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Meet the project coordinator
Jeremy Saugstad, Walnut Creek Watershed Project Coordinator, wants to get the community involved in improving the water quality in the creek.
With nearly 15 years of farming experience, Saugstad would like to help farmers improve the land and water quality with conservation practices.
"Most farmers know about different conservation practices, but we would like to educate them further on how these improvements can impact the soil and water quality in the area," said Saugstad.
Saugstad, who lives in Grinnell, became the project coordinator for the Walnut Creek Watershed Project in January 2008 after working with the Holiday Lake watershed in 2007.
"Landowners should learn to conserve today for a better tomorrow," said Saugstad. "I am working on this project in order to help preserve our natural resources- our land and our water."
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Project partners
For More Information
Local:
Jeremy Saugstad
Walnut Creek Watershed Project Coordinator
(641) 528-2065 ext. 3
Jeremy.Saugstad@ia.nacdnet.net
Poweshiek NRCS
Statewide:
Steve Hopkins
DNR Watershed Improvement Program Grants Coordinator
(515) 281-6402
Stephen.Hopkins@dnr.iowa.gov
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