The Public Trust Doctrine and Water Rights in Nevada

In 2019, we previously posted a blog on the Public Trust Doctrine in Nevada which you can find here. Since then, the Nevada Supreme Court made its decision in Mineral Cty. v. Lyon Cty., 136 Nev. 503, 473 P.3d 418 (2020). We provide a brief recap of the Public Trust Doctrine and an update on the status of the doctrine in Nevada.

The Nevada Supreme Court formally recognized the Public Trust Doctrine in 2011 in Lawrence v. Clark County. However, the Court in Lawrence only recognized the doctrine in the context of navigable waters. In Mineral County, the Court later clarified that the doctrine applies to all waters within the state, whether navigable or non-navigable. The Court also adopted the position that the Public Trust Doctrine has been in place in Nevada since statehood, despite the doctrine not being formally acknowledged until Lawrence.

What is the Public Trust Doctrine?

The public trust doctrine “generally acts as a restraint on the state in alienating public trust resources.” Id. at 509. However, arguably the doctrine has broader implications than only the alienation of public resources by the State. The doctrine enshrines the principle that the public trust resources are owned by the State, and the State cannot use them for just any purpose. Rather, the State acts as a fiduciary. This means the State must use and maintain public trust resources for the benefit of the public. Therefore, because the State owns all the water of the State and holds those waters in trust for the public, the State has a duty to protect the water from misuse or contamination. As an acting fiduciary, the State’s protection is for the benefit of current and future residents of the State.

How does the decision in Mineral County affect your water rights?

The Court in Mineral County found that even though the Public Trust Doctrine “applies to all waters within the state, including those previously allocated under prior appropriation,” the doctrine does not allow for the reallocation of rights settled under the doctrine of prior appropriation. Id. at 506. The Court reasoned that the “state’s statutory water scheme [which is based on the doctrine of prior appropriation] is consistent with the public trust doctrine by requiring the State Engineer to consider the public interest when allocating and administering water rights.” Id. / The Court went on to explain, “in recognizing the significance of finality in water rights, our Legislature has expressly prohibited reallocating adjudicated water rights that have not been otherwise abandoned or forfeited in accordance with the state’s water statutes.” Id.

Due to the Mineral County decision, courts in Nevada will recognize the Public Trust Doctrine as it applies to the disposition of water rights by the State under the state’s statutory scheme. The Court in Mineral County cautioned “that rights holders must continually use water beneficially or lose those rights.” Id. at 518. If you need assistance ensuring your water is placed to beneficial use, research attorneys that can help you comply with State regulations.