What is impervious surface?
Any surface that prevents or retards the entry of water into the soil and/or causes the water to run off the surface in greater quantities than natural conditions prior to development. Rooftops, gravel, or paved driveways and sidewalks are the most common impervious surfaces in single family projects.

Show All Answers

1. What is a site development permit?
2. When is a site development permit required?
3. How do I get a site development permit?
4. Who should I talk to if I have vesting questions regarding the site development work for my project?
5. How can I check the status of my site development permit?
6. Once I make application for my site development permit, may I start site development work?
7. Who prepares the plans and reports that I need to submit for a site development permit?
8. Can I/how do I get an extension for my general site development permit?
9. Can I/how do I get an extension for my residential site development permit?
10. At what point is work considered 'minor work in the Right-of-way' vs. an 'off-site public road improvement'?
11. What is an infiltration trench?
12. What is impervious surface?
13. What is a dispersion trench?
14. Do you have a list of surveyors and engineers?
15. Who do I talk to about a violation (filling, grading, clearing, work in floodplains, work in drainage course, etc.) on my property?