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Erosion and Sediment Control

Soil eroding at a construction siteErosion is a natural process where the force of raindrops and surface runoff can detach soil particles and transport them through our stormwater system as sediment. Sediment in stormwater runoff can pollute water and degrade aquatic habitats and is the largest pollutant of rivers, streams and lakes.  

Problems caused by sediment

Sediment fills up storm drains that carry water away from roads and homes, which increases the potential for flooding. Sediment in streams changes flow patterns and covers animal habitats with mud. Water polluted with sediment becomes cloudy, preventing fish from seeing food and filtering light away from plants growing in the water. In urban and suburban areas, soil often includes chemicals not usually present in the water, such as heavy metals and excess nutrients that cause algae blooms.  

Sediment control in Lenexa

Construction activity is a primary source of sediment in urbanized areas. We are required by the Clean Water Act to manage the stormwater runoff from construction sites. 
 
Our Land Disturbance ordinance helps: 

  • control stormwater runoff from construction sites 

  • reduce water pollution and improve water quality 

  • protect valuable water bodies and natural resources 

Under these provisions, if you are disturbing more than 100 cubic yards or 5,000 square feet of soil, you must obtain a land disturbance permit. Certain activities, including gardening and agriculture, are exempt from this requirement.  

Apply for a land disturbance permit

Erosion and sediment control manual

Contact Information

Dale Clark, Erosion and Sediment Control Inspector, dclark@lenexa.com