Since the implementation of the Clean Water Act in 1972, the Environmental Protection Agency has been able to curtail pollution to waterways from many point sources. However, pollution impacts from nonpoint source stormwater runoff continue to increase. Stormwater management has become an increasingly important topic in the state of Iowa with a large focus on finding ways of improving agricultural runoff, which pollutes streams and rivers with high nutrient and sediment loads. While the vast majority of land in Iowa is dedicated to agricultural production, there is another major culprit to non-point pollution sources: construction sites.
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