1004-002 Rathbun Lake Watershed Final Report

(2014) 1004-002 Rathbun Lake Watershed Final Report. Agriculture and Land Stewardship

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Abstract

The Rathbun Land and Water Alliance and partners have undertaken a highly effective approach to water quality protection through the Rathbun Lake Special Project. This approach is achieving a significant reduction in the sediment and phosphorus that impair water quality in Rathbun Lake and its tributaries as a result of the targeted application of best management practices (BMPs) for priority land in the watershed. This application proposes to assist landowners to construct five large sediment retention basins that will reduce sediment and phosphorus delivery from priority land in targeted sub-watersheds. The Alliance, with previous WIRB support, demonstrated that construction of these basins at strategically selected sites is one of the most cost effective measures to reduce sediment and phosphorus delivery to Rathbun Lake. Features of this project are: (1) use of geographic information system (GIS) analysis to identify potential basin sites; (2) assistance for landowners to construct 5 basins that will reduce the annual delivery of sediment by 1,500 tons and phosphorus by 5,000 pounds; (3) evaluation of the benefits from basin construction using GIS analysis and water quality monitoring; and (4) watershed outreach activities that encourage landowners to apply BMPs including sediment retention basins to protect water quality.

Item Type: Departmental Report
Keywords: Watershed Improvement Review Board, WIRB, water quality, watershed, Upper Chariton River Watershed, Appanoose County, Clarke County, Decatur County, Lucas County, Monroe County, Wayne County, Rathbun Land and Water Alliance
Subjects: Natural resources and environment > Water resources > Water quality
Natural resources and environment > Water resources > Watersheds
ID Code: 21221
Deposited By: Jerome Neppel
Deposited On: 29 Feb 2016 13:09
Last Modified: 29 Feb 2016 13:09
URI: http://publications.iowa.gov/id/eprint/21221