How long is a drainage and erosion plan in effect?
The drainage and erosion control plan must be maintained until surface coverage is at least 70% of predisturbance levels or until permanent physical erosion reduction methods have been employed.

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1. Why do I need a drainage and erosion control?
2. Does the area of disturbance dictate what permits and plans I need to submit?
3. What goes into a drainage and erosion control plan for Pitkin County?
4. How long is a drainage and erosion plan in effect?
5. Who can I contact at Pitkin County for more information, or with questions?