Policy

Policy guides how stormwater management techniques are used to mitigate the impacts of urban development. The Walnut Creek Watershed Management Plan recommends altering development standards for more effective stormwater management and policy changes including, regulations protecting stream buffers, floodplain ordinances that reduce flood risks, and the implementation of best management practices as outlined in the Iowa Stormwater Management Manual.

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Floodplain Protection

Reducing development in the floodplain will help build flood resilient communities.

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Stream Buffers

Minimum level of protection needed to protect homes and business from eroding streams.

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Construction Site Erosion

0.1% of the watershed consists of constructions sites contributing as much as 25% of the sediment load.

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Topsoil

Protecting topsoil can help reduce flooding and improve water quality.

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4,300 acres of land in the watershed were developed between 2001 and 2011