Arizona 2025 2025 Regular Session

Arizona Senate Bill SB1518 Comm Sub / Analysis

Filed 03/21/2025

                     
  	SB 1518 
Initials CW/TM 	Page 1 	Caucus & COW 
 
ARIZONA HOUSE OF REPRESENTATIVES 
Fifty-seventh Legislature 
First Regular Session 
Senate: NR DP 4-3-1-0 | 3rd Read 16-11-3-0-0 
House: NREW DP 5-4-0-1  
 
SB 1518: subsequent AMAs; groundwater portability 
Sponsor: Senator Dunn, LD 25 
Caucus & COW 
Overview 
In subsequent Active Management Areas (AMA) authorizes the sale, lease, use and transfer 
of irrigation grandfathered rights (IGFRs) and the water duty associated with the acres. 
History  
Irrigation Grandfathered Right (IGFR) 
An IGFR is associated with land within an AMA that was legally irrigated with groundwater 
between January 1, 1975 and January 1, 1980, or the five years prior to the designation of a 
subsequent AMA and has not been retired from irrigation for non-irrigation use. To irrigate 
means to grow crops for sale, human consumption or livestock or poultry feed by applying 
water on two or more acres (A.R.S. §§ 45-402, 45-465). 
To sell an IGFR, the Arizona Department of Water Resources (ADWR) must be notified 
through a 58-500 form. The rights are tied to the lands, allowing the owner to irrigate those 
acres, but the rights cannot be transferred independently of the land (ADWR).  
Water Duty 
Water duty refers to the amount of water in acre-feet per acre that may be applied to irrigated 
land in a farm unit during an accounting period as calculated by the ADWR Director (A.R.S 
§ 45-402 and A.R.S § 45-465).  
Provisions 
1. Allows an owner of an IGFR in a subsequent AMA to sell, use, transfer or lease the right 
and the water duty associated with those acres. (Sec.1) 
2. Authorizes the owner of an IGFR, that did not irrigate a set portion of lands attached to 
the IGFR, to sell, transfer or lease the associated water duty of the non-irrigated acres. 
(Sec.1) 
3. Allows the original owner of the associated water duty to use the full volume of the water 
duty that is attached to the acres that the owner does not irrigate anywhere on the farm 
unit. (Sec. 1) 
4. Permits the person who receives a sold, leased or transferred associated water duty to use 
the associated water duty anywhere in the subsequent AMA for irrigation use and to 
further convey the water duty. (Sec.1)  
☐ Prop 105 (45 votes)     ☐ Prop 108 (40 votes)      ☐ Emergency (40 votes) ☐ Fiscal Note   
  	SB 1518 
Initials CW/TM 	Page 2 	Caucus & COW 
5. Requires an owner of an IGFR who proposes to use, sell, transfer or lease the irrigation 
grandfathered right and the associated water duty to notify the Director of ADWR via a 
form provided by the Director. (Sec.1) 
6. Outlines the information to be included on the form. (Sec.1) 
7. Mandates the Director of ADWR adopt rules, including the implementation of flexibility 
accounts or similar accounting methods to implement the proposed measure. (Sec.1)