Do I require a Post-Construction Permit from Maricopa County?
A permit is required for land disturbance equal to or greater than one acre. Land disturbance of less than one acre constituting a part of a larger plan of development are also regulated.

Activities for which a permit is required include land development and redevelopment to include clearing or grubbing, leveling, construction of new or additional impervious or semi-pervious surfaces such as driveways, roadways, parking lots, recreation features, construction of new buildings or additions to existing buildings and installation of stormwater management facilities or appurtenances thereto.

Show All Answers

1. What is the Stormwater Program?
2. What is the Arizona Pollutant Discharge Elimination System (AZPDES) program?
3. What is stormwater runoff?
4. What is an MS4 system?
5. Why is stormwater regulated?
6. Does my construction site require a Stormwater Plan Approval from Maricopa County?
7. Do I require a Post-Construction Permit from Maricopa County?
8. How do I apply for Stormwater Plan Approval?
9. What is the National Pollutant Discharge Elimination System (NPDES) program?