A. The district shall:

1. 1. Establish annually the costs and expenses to replenish groundwater pursuant to this article with respect to all parcels of member lands and all member service areas located in each active management area, including capital expenses, debt service expenses, the operation, maintenance, replacement and administrative costs and expenses of the district, replenishment reserve costs and expenses as provided in subsection E of this section and reasonable reserves. Separate calculations of costs and expenses shall be made for each active management area in which member lands or member service areas are located and for each membership category. Costs and expenses attributed by the district to contract replenishment obligations shall not be included in these calculations.
2. 2. Provide for the payment of all costs and expenses to replenish groundwater pursuant to this chapter and the payment of operation, maintenance, replacement and administrative costs and expenses and debt service expenses of the district.
3. 3. Levy an annual replenishment assessment against each parcel of member land pursuant to section 48-3778 and an annual replenishment tax against each municipal provider that has a member service area pursuant to section 48-3781 to pay the district's costs and expenses as established pursuant to paragraph 1 of this subsection.
4. 4. Levy a contract replenishment tax against municipal providers that are parties to contracts authorized under subsection B, paragraph 9 of this section to pay the district's costs and expenses to replenish groundwater based on contract replenishment obligations.
5. 5. Establish and maintain reserve accounts in amounts as may be deemed necessary to perform the district's obligations under this article.
6. 6. Fulfill all obligations under resolutions adopted pursuant to subsection B, paragraph 10 of this section.

7. 7. Levy an activation fee as follows:

   1. (a) For subdivisions within member lands and member service areas that are enrolled before May 6, 2004 and that had not been issued a public report before August 12, 2005, the district shall levy a onetime activation fee against each housing unit to be constructed within the subdivision.
   2. (b) For subdivisions within member lands and member service areas that are enrolled on or after May 6, 2004, the district shall levy a onetime activation fee against each housing unit to be constructed within the subdivision.

   3. (c) The activation fee shall be paid to the district according to either of the following schedules, whichever the subdivider elects:

      1. (i) Paid in full before issuance of a public report for each real estate subdivision identified in subdivision (a) or (b) of this paragraph.
      2. (ii) One-half paid before issuance of a public report for each real estate subdivision identified in subdivision (a) or (b) of this paragraph and the remaining amount paid no later than one year after the issuance of the public report. The total amount of the activation fee must be the amount of the activation fee in effect at the time of the initial payment. Payment of the initial one-half of the activation fee pursuant to this item constitutes sufficient payment of applicable fees for notice of intent to subdivide as prescribed in section 32-2181, subsection C and for issuance of a public report as prescribed in section 32-2183, subsection G and section 45-576, subsection C, except that on failure to pay the remaining amount, the commissioner shall suspend the public report for that subdivision pursuant to section 32-2183.
   4. (d) The activation fee shall be established annually by the district. The amount of the activation fee to be paid to the district under subdivision (c) of this paragraph must be the amount of the activation fee in effect at the time of payment. Revenues from the activation fee together with revenues from other sources that are legally available to the district for those uses shall be used by the district to acquire, lease or exchange water or water rights and develop infrastructure necessary for the district to perform its replenishment obligations.
8. 8. For any year, set all of its rates and charges associated with the acquisition, lease or exchange of water or water rights and development of infrastructure necessary for the district to perform its replenishment obligations, other than the annual membership dues established pursuant to section 48-3779, so that the total projected revenues from revenue sources other than the annual membership dues, that are legally available to the district in that year to pay costs associated with the acquisition, lease or exchange of water or water rights and development of infrastructure necessary for the district to perform its replenishment obligations, shall be at least three times the total projected revenues from the annual membership dues in that year. For the purposes of this paragraph, costs associated with the acquisition, lease or exchange of water or water rights do not include the annual costs associated with delivery of water for replenishment purposes.

B. The district may:

1. 1. Acquire, develop, construct, operate, maintain, replace and acquire permits for water storage, storage facilities and recovery wells for replenishment purposes.
2. 2. Acquire, transport, hold, exchange, own, lease, store or replenish water, except groundwater withdrawn from an active management area, subject to the provisions of title 45, for the benefit of member lands and member service areas.
3. 3. Acquire, hold, exchange, own, lease, retire or dispose of water rights for the benefit of member lands and member service areas.
4. 4. Require municipal providers to provide such information, in such form and within the time limits prescribed by the district, as may be necessary to carry out the purpose of this chapter.
5. 5. Levy and collect assessments, fees, charges, taxes and other revenues as are provided in this chapter for the financing of replenishment activities.
6. 6. Contract for or perform feasibility studies of water storage, storage facilities and recovery wells for replenishment purposes.
7. 7. Acquire real and personal property for water storage, storage facilities and recovery wells for replenishment purposes by purchase, lease, donation, dedication, exchange or other lawful means.
8. 8. Use any facilities and any excess storage capacity of any state demonstration projects undertaken pursuant to title 45, chapter 3.1 for water storage for replenishment purposes.
9. 9. Subject to subsection G of this section, contract with any municipal provider having a member service area to replenish groundwater on behalf of the municipal provider and with respect to the member service area in an amount in excess of the sum of the service area replenishment obligations applicable to the member service area for all years in which the district has not completed the replenishment of the groundwater replenishment obligation for the member service area.

10. 10. Adopt resolutions granting water availability status to a member service area of a city, town or private water company and committing to replenish a specified average annual volume of water in a location where the city, town or private water company may physically access the water for service to its customers, if all of the following apply:

    1. (a) The district has reviewed its requirements for transportation of central Arizona project water, its contracts, subcontracts, letter agreements, excess water contracts and other contractual obligations and its member service area and member land requirements and has determined that the district can meet those obligations and that capacity remains in the central Arizona project to meet the obligations undertaken through the resolution.

    2. (b) The resolution acknowledges that the commitment to replenish the specified average annual volume of water in the location cited in the resolution shall be a permanent obligation of the district, unless one of the following applies:

       1. (i) A permanent substitute supply of water is found for the city, town or private water company and the substitution is approved by the director of water resources, thus terminating the water availability status of the member service area.
       2. (ii) The requirements of section 45-576.07, subsection A are not met, and thus the director of water resources does not issue an order granting or maintaining the city, town or private water company as having an assured water supply based in whole or in part on section 45-576.07. If no order is issued within two years of the district adopting the resolution, the resolution may be repealed, and the district shall be relieved of all obligations under the resolution.
    3. (c) The average annual volume of water specified in the resolution, when added to the average annual volume of water specified in all other resolutions adopted pursuant to this paragraph, does not exceed twenty thousand acre-feet.
    4. (d) The district has entered into an agreement with the city, town or private water company under which the city, town or private water company will hold for the district's future use, and provide to the district when needed, sufficient water to meet the obligations undertaken by the district through the resolution.
    5. (e) The district determines that the obligations undertaken by the district through the resolution will not increase annual replenishment assessment rates or costs to central Arizona project contract and subcontract holders and its member service areas and member lands.
    6. (f) The director of water resources has found, pursuant to section 45-576.07, subsection H, that the district has the capability to grant water availability status to member service areas.

11. 11. Provide in resolutions adopted pursuant to paragraph 10 of this subsection that the district may fulfill its obligations under the resolution in any year by directly delivering to the city, town or private water company the water that otherwise would have been replenished pursuant to the resolution, if all of the following apply:

    1. (a) The district has reviewed its requirements for transportation of central Arizona project water, its contracts, subcontracts, letter agreements, excess water contracts and other contractual obligations and its member service area and member land requirements and has determined that the district can meet those obligations and that capacity remains in the central Arizona project to make direct deliveries pursuant to this paragraph.
    2. (b) The district determines that the delivery will not increase annual replenishment assessment rates or costs to central Arizona project contract and subcontract holders, its member service area and member lands.
12. 12. Enter into agreements with a city, town or private water company that will have water made available to it through a resolution adopted pursuant to paragraph 10 of this subsection and under which the city, town or private water company compensates the district for the costs and fair value of the water supply provided by the district.

13. 13. Issue revenue bonds pursuant to article 3 of this chapter to fund the costs and expenses of the district for the acquisition, lease or exchange of water or water rights and the development of infrastructure necessary for the district to perform its replenishment obligations subject to the following:

    1. (a) The principal of, interest and premiums, if any, on revenue bonds issued pursuant to article 3 of this chapter to acquire, lease or exchange water or water rights and develop infrastructure necessary for the district to perform its replenishment obligations are not payable from any revenues of the district other than revenues generated or collected pursuant to this article that are legally available to the district for those purposes and revenues from the investment of the proceeds of the bonds.

    2. (b) The district may not use the proceeds of the bonds to acquire or lease:

       1. (i) Groundwater, as defined in section 45-101, except as expressly authorized in sections 45-547, 45-553 and 45-554.
       2. (ii) Surface water, as defined in section 45-101, that is the subject of a general adjudication pursuant to title 45, chapter 1, article 9.
    3. (c) Subdivision (b) of this paragraph does not prohibit the district from acquiring or leasing central Arizona project water.
14. 14. Except as provided in section 48-3780.01, subsection B, in addition to any other assessments, fees, charges or taxes levied and collected under this chapter, or under any declaration, contract or agreement entered into under this chapter, charge annual dues for membership pursuant to section 48-3779 against each parcel of member land and each municipal provider that has a member service area.

E. The district shall establish and maintain a replenishment reserve of long-term storage credits as follows:

1. 1. The district shall calculate a reserve target for each of the three active management areas within the district and shall identify the reserve target in the plan of operation prepared pursuant to section 45-576.02. The reserve target for each active management area shall be calculated as follows:

   1. (a) For each active management area, add together the projected replenishment obligation for each of the twenty years following submission of the plan of operation. For the purposes of this subdivision, each active management area's projected replenishment obligation does not include replenishment obligations under resolutions adopted pursuant to subsection B, paragraph 10 of this section or replenishment obligations for category 2 member lands.
   2. (b) Divide each sum from subdivision (a) of this paragraph by twenty to determine the twenty-year average annual projected replenishment obligations for each active management area and multiply by five. Each product is the reserve target for the applicable active management area. If the replenishment reserve account balance in any active management area exceeds the reserve target as of September 26, 2025, the excess shall remain in the account.

2. 2. The reserve target for an active management area may be adjusted by the district, subject to the approval of the director of water resources, based on changes in either of the following:

   1. (a) The active management area's projected replenishment obligation.
   2. (b) The volumes of water identified in the plan of operation prepared pursuant to section 45-576.02 as water that the district plans to use to meet its replenishment obligations for that active management area.
3. 3. The district shall include a replenishment reserve charge in the annual replenishment assessment levied against all parcels of category 1 member land as provided in section 48-3774.01 and in the annual replenishment tax levied against all municipal providers that have member service areas as provided in section 48-3780.01. The replenishment reserve charge for each active management area is established annually by the district based on the reserve target for that active management area.
4. 4. The district shall levy a replenishment reserve fee against category 1 member lands pursuant to section 48-3774.01 and against member service areas pursuant to section 48-3780.01. For category 1 member lands the fee is equal to twice the applicable replenishment reserve charge multiplied by the total projected average annual replenishment obligation for the member lands as reported by the director of water resources pursuant to section 45-578, subsection F. For member service areas the fee is equal to twice the applicable replenishment reserve charge multiplied by the excess groundwater increment. With the approval of the district and the director of water resources, long-term storage credits as defined in section 45-802.01 may be assigned to the district's replenishment reserve subaccount in lieu of paying the replenishment reserve fee.
5. 5. The district shall use replenishment reserve charges and replenishment reserve fees collected within each active management area together with all interest earned on the charges and fees to store water in that active management area in advance of groundwater replenishment obligations for the purpose of developing long-term storage credits as defined in section 45-802.01 that shall be credited to the replenishment reserve subaccount for that active management area as provided in section 45-859.01.
6. 6. Beginning on January 1, 2030 or earlier, on approval of the director of water resources pursuant to section 45-859.01, subsection K, the district may transfer credits from a replenishment reserve subaccount to a conservation district account as provided in section 45-859.01 to satisfy its groundwater replenishment obligations.
7. 7. If the district transfers credits from the replenishment reserve subaccount for an active management area pursuant to section 45-859.01, subsection E, the district shall include in the annual replenishment assessment levied against all parcels of category 1 member land in that active management area and, except as provided in section 48-3780.01, subsection B, in the annual replenishment tax levied against all municipal providers that have member service areas in that active management area a reserve replacement component to fund the replacement of the transferred credits. The district shall use all monies from the reserve replacement component collected within an active management area together with all interest earned on the monies to develop long-term storage credits as defined in section 45-802.01 within that active management area to be credited to the replenishment reserve subaccount for that active management area as provided in section 45-859.01.
8. 8. For the purposes of establishing and maintaining the replenishment reserve, the district shall have access to excess central Arizona project water equivalent to but not more than the access the Arizona water banking authority has for the purposes specified in section 45-2401, subsection H, paragraph 2.