The volume of water that naturally recharges the groundwater supply minus natural depletions to the groundwater supply.
ADWR Dictionary

ADWR Dictionary
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Net natural recharge
New Large Landscape User
A non-residential facility that has a water-intensive landscaped area in excess of 10,000 square feet and that has landscaping planted and maintained after January 1, 1990 or bodies of water, other than bodies of water used primarily for swimming purposes, filled and maintained after January 1, 1990, or both. The following facilities are excluded from this definition: schools, parks, cemeteries, golf courses, common areas of housing developments and public recreational facilities.
New Large Municipal Provider
A municipal provider that begins serving more than 250 ac-ft of water for non-irrigation use during a calendar year after the date of adoption of the 4MP.
Newly Turfed Area
For a calendar year, an area of land planted with a warm-season grass species that was not planted with any warm-season grass species during the preceding calendar year.
Non-exempt well
Within an AMA, a well having a pump with a maximum pumping capacity of more than 35 gallons per minute and used for non-irrigation purposes or any well used for irrigation purposes. This term is also frequently used to describe any well outside an AMA having a pump with a maximum pumping capacity greater than 35 gallons per minute.
Non-irrigation grandfathered right
Refers to grandfathered rights within active management areas that are associated with irrigated land retired after January 1, 1965 in anticipation of a non-irrigation use, and to grandfathered rights that are not associated with retired irrigated land.
Non-jurisdictional dam
An artificial barrier for impounding water that does not qualify as a jurisdictional dam.
Non-Lactating Animal
A calf, heifer, mature dry cow, bull, or steer that is present on-site at a dairy operation and receives water through the dairy operation's watering system.
Non-Residential Customer
A person who is supplied water by a municipal provider for a non-irrigation use other than a residential use.
Normal storage capacity
The total volume, in acre-feet, at the normal retention level, including dead and inactive storage and excluding flood control and surcharge storage.