If your construction projects disturbs one (1) or more acres you need coverage under this general permit. Find out more information and how to apply here.
If you are planning to temporarily discharge water to surface waters, you may need this permit. Find out more information and how to apply here.
If you operate a business or industry, you may need a permit for stormwater discharges from your site. The need for an industrial permit is based on the types of activities you do at your site. Find out more information and how to apply here.
If you are a public entity such as a city or county with population/urbanized area of 10,000 or more people, you may need coverage under a Municipal Separate Storm Sewer System, or MS4, stormwater permit. Find out more information and how to apply here.
Search for Construction and Industrial stormwater permit information or our construction contractor database.