Revised On: May. 27, 2024 - 3:00 p.m.

Well drilling is the process of drilling a hole in the ground for the extraction of a natural resource such as ground water, brine, natural gas, or petroleum, for the injection of a fluid from surface to a subsurface reservoir or for subsurface formations evaluation or monitoring.

You may need all or some of the following permits:

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.”

If you discharge water pollutants, you may need an Individual APP | Learn More >  

If your industry has stormwater discharges due to mining, then you may need an AZPDES MSGP Mining Permit | Learn More > 

If your industry has certain types of non-stormwater discharges to surface waters, then you may need an AZPDES De Minimis GP | Learn More >

If your industry has stormwater discharges, you may need an AZPDES Industrial Stormwater Non-Mining MSGP | Learn More >