A. To protect the public health and safety, the general regulations adopted by the board pursuant to section 11-821, subsection B, if approved by unanimous vote of the board of supervisors, may provide that, except as provided in subsection C and subsection D, paragraph 1 of this section, the board or a county employee who is authorized by the adopted county ordinance shall not approve a final plat for a subdivision composed of subdivided lands, as defined in section 32-2101, located outside of an active management area, as defined in section 45-402, unless one of the following applies:

1. 1. The director of water resources has determined that there is an adequate water supply for the subdivision pursuant to section 45-108 and the subdivider has included the report with the plat.
2. 2. The subdivider has obtained a written commitment of water service for the subdivision from a city, town or private water company designated as having an adequate water supply by the director of water resources pursuant to section 45-108.

B. If the board unanimously adopts the provision authorized by subsection A of this section:

1. 1. The board may include in the general regulations an exemption from the provision for a subdivision that the director of water resources has determined will have an inadequate water supply because the water supply will be transported to the subdivision by motor vehicle or train if all of the following apply:

   1. (a) The board determines that there is no feasible alternative water supply for the subdivision and that the transportation of water to the subdivision will not constitute a significant risk to the health and safety of the residents of the subdivision.
   2. (b) If the water to be transported to the subdivision will be withdrawn or diverted in the service area of a municipal provider as defined in section 45-561, the municipal provider has consented to the withdrawal or diversion.
   3. (c) If the water to be transported is groundwater, the transportation complies with the provisions governing the transportation of groundwater in title 45, chapter 2, article 8.
   4. (d) The transportation of water to the subdivision meets any additional conditions imposed by the county.
2. 2. The board shall promptly give written notice of the adoption of the provision to the director of water resources, the director of environmental quality and the state real estate commissioner. The notice shall include a certified copy of the provision and any exemptions adopted pursuant to paragraph 1 of this subsection. Water providers may be eligible to receive monies in a water supply development fund, as otherwise provided by law.
3. 3. The board shall not rescind the provision or amend it in a manner that is inconsistent with subsection A of this section. If the board amends the provision, it shall give written notice of the amendment to the director of water resources, the director of environmental quality and the state real estate commissioner. The board may rescind an exemption adopted pursuant to paragraph 1 of this subsection. If the board rescinds the exemption, it shall give written notice of the rescission to the director of water resources, the director of environmental quality and the state real estate commissioner, and the board shall not readopt the exemption for at least five years after the rescission becomes effective.
4. 4. If the board or a county employee who is authorized by the adopted county ordinance approves a subdivision plat pursuant to subsection A, paragraph 1 or 2 of this section, the board shall note on the face of the plat that the director of water resources has reported that the subdivision has an adequate water supply or that the subdivider has obtained a commitment of water service for the proposed subdivision from a city, town or private water company designated as having an adequate water supply pursuant to section 45-108.

5. 5. If the board or a county employee who is authorized by the adopted county ordinance approves a subdivision plat pursuant to an exemption authorized by paragraph 1 of this subsection or granted by the director of water resources pursuant to section 45-108.02 or 45-108.03:

   1. (a) The board shall give written notice of the approval to the director of water resources and the director of environmental quality.
   2. (b) The board shall include on the face of the plat a statement that the director of water resources has determined that the water supply for the subdivision is inadequate and a statement describing the exemption under which the plat was approved, including a statement that the board or the director of water resources, whichever applies, has determined that the specific conditions of the exemption were met. If the director of water resources subsequently informs the board that the subdivision is being served by a water provider that has been designated by the director as having an adequate water supply pursuant to section 45-108, the board shall record in the county recorder's office a statement disclosing that fact.

C. Subsection A of this section does not apply to:

1. 1. A proposed subdivision that the director of water resources has determined will have an inadequate water supply pursuant to section 45-108 if the director grants an exemption for the subdivision pursuant to section 45-108.02 and the exemption has not expired or the director grants an exemption pursuant to section 45-108.03.
2. 2. A proposed subdivision that received final plat approval from the county before the requirement for an adequate water supply became effective in the county if the plat has not been materially changed since it received the final plat approval. If changes were made to the plat after the plat received the final plat approval, the director of water resources shall determine whether the changes are material pursuant to the rules adopted by the director to implement section 45-108. If the county approves a plat pursuant to this paragraph and the director of water resources has determined that there is an inadequate water supply for the subdivision pursuant to section 45-108, the county shall note this on the face of the plat.

D. If the subdivision is composed of subdivided lands as defined in section 32-2101 outside of an active management area and the board has not adopted a provision pursuant to subsection A of this section:

1. 1. If the director of water resources has determined that there is an adequate water supply for the subdivision pursuant to section 45-108 or if the subdivider has obtained a written commitment of water service for the subdivision from a city, town or private water company designated as having an adequate water supply by the director of water resources pursuant to section 45-108, the board or a county employee who is authorized by the adopted county ordinance shall note this on the face of the plat if the plat is approved.
2. 2. If the director of water resources has determined that there is an inadequate water supply for the subdivision pursuant to section 45-108, the board or a county employee who is authorized by the adopted county ordinance shall note this on the face of the plat if the plat is approved.