This permit is for discharges to lined surface impoundments, lined secondary containment structures and associated lined conveyance systems at mining sites. You need this permit if you have: 

• Seepage from tailing impoundments, unleached rock piles or process areas
• Process solution is temporarily stored for short periods of time due to process upsets or rainfall
• Stormwater runoff is not permitted under statute¹ because the facility does not solely receive stormwater or because the runoff is regulated but not considered stormwater under the Clean Water Act
• Wash water specific to sand and gravel operations not covered by Arizona Administrative Code (AAC)2

This permit is valid for five years.

Applications: 

• Type 3 General Permit Notice of Intent (NOI) | Download Application >
• 3.04 General Permit Supplemental NOI | Download Application >
• Are you renewing your Type 3 APP permit? | Download Application >