Revised On: Apr. 25, 2024 - 4:30 p.m.

A foundry is a factory that produces metal castings.

You may need all or some of the following permits:

• If you have a boiler + generator, you may need an Air Quality Individual Permit | Learn More > 
• If you have hazardous waste to dispose of, you may need an Application for an EPA ID Number | Learn More > 
• If you have underground storage tank, may need a Notification of UST Form | Learn More > 
• 1.04 GP: Discharge from a Facility that Receives Water from a Well if Discharge is to the Same Aquifer: “Type 1 General Permit: No notification is required, however, best management practices (BMPs) must be followed.”
• 1.05 GP: Discharge of Backwash or Condensate if less than 1000 Gallons Per Day: “Type 1 General Permit: No notification is required, however, best management practices (BMPs) must be followed.”
• 1.08 GP: Toilet or Privy: “Type 1 General Permit: No notification is required, however, best management practices (BMPs) must be followed.”
• 2.01 GP: Drywells that Drain Areas with Hazardous Substances | Learn More > 
• 2.03 GP: Hydrologic Tracer Studies | Learn More > 
• 3.01 GP: Lined Impoundments | Learn More > 
• 3.03 GP: Vehicle and Equipment Washes | Learn More > 
• 3.07 GP: Tertiary Treatment Wetlands | Learn More > 
• If you discharge water pollutants, you may need an Individual APP | Learn More > 
• If you temporarily need to discharge water pollutants, you may need a Temporary Individual APP | Learn More >  
• If you have a drywell, you may need a Drywell Registration | Learn More > 
• If your industry has stormwater discharges, you may need an AZPDES MSGP Industrial Stormwater or No Exposure Certification | Learn More >