Arizona Wells: Notice of Intent and the 35 GPM Exempt Well

Short summary of the Arizona Department of Water Resources (ADWR) page on well drilling.

You must file a Notice of Intent to Drill with ADWR, with the filing fee, before drilling a new well or deepening or modifying an existing one. The authority is valid for one year.
A licensed well-drilling contractor must do the work.
An exempt well is typically for domestic use and equipped to pump 35 gallons per minute or less. A non-exempt well has pump capacity above 35 gpm; in Active Management Areas it requires grandfathered rights, service area rights or withdrawal permits.
ADWR regulates all groundwater wells and keeps a permanent record, citing A.R.S. 45-593 on registration of existing wells.

For pump choice, the 35 gpm figure is a pump capacity limit, so ask the driller to confirm the pump you buy stays within it. Not verified: fees, current forms, and whether your location is in an Active Management Area.

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General information only. Not plumbing, legal or code advice. Confirm with a licensed professional and your local authority.