As of March 10, 2003, construction activity that disturbs one or more acre of land, including that conducted by a municipality, needs the Construction General Permit (CGP).
What EPA considers "construction activity": clearing, grading, excavation and other land disturbance activities related to projects such as landscaping, demolition, and building homes, office buildings, factories, roads, etc.
If your own work site creates less than one acre of disturbance, but is part of a larger "common plan of development or sale" totaling that many acres of disturbance, you need a permit. It is important to note that the threshold is for total disturbance. The areas of disturbance do not need to be contiguous to be included in the calculation of total disturbance.
This permit is different from
- Alteration of Terrain (Site Specific) permit - NH
- Best Management Practices (BMPs)
- EPA's construction dewatering permit
- More Information about the Construction General Permit
- More Information on Runoff Control
- News for Construction Site Operators
- State and Federal wetlands permits
- Questions/Answers and Important Notices
Alteration of Terrain Bureau
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