Justia U.S. 10th Circuit Court of Appeals Opinion Summaries

The case involves environmental organizations seeking to enforce the Clean Air Act (CAA) against a petroleum refinery in Commerce City, Colorado, now operated by Suncor Energy. The refinery emits significant air pollution, affecting nearby residents' health and quality of life. Over twenty years ago, the Environmental Protection Agency (EPA) entered into consent decrees with Valero Energy Corporation and Conoco Phillips to enforce the CAA at these refineries. Suncor later acquired the facilities and became subject to the consent decrees. Despite ongoing EPA and Colorado enforcement actions, including compliance orders and notices of violation, the organizations allege continued violations of CAA standards and the consent decrees.The environmental groups, including GreenLatinos, Sierra Club, and 350 Colorado, filed a citizen suit in the United States District Court for the District of Colorado, alleging 28 CAA violations and violations of the consent decrees. Suncor moved to dismiss, arguing that the suit was barred by the CAA’s diligent prosecution provision, which prevents citizen suits if EPA or a state is diligently prosecuting a civil action in court for the same violations. The district court granted Suncor’s motion to dismiss under Rule 12(b)(6), holding that ongoing enforcement actions by EPA and Colorado, including the consent decrees and administrative actions, triggered the diligent prosecution bar.On appeal, the United States Court of Appeals for the Tenth Circuit addressed whether the diligent prosecution bar precluded the organizations’ claims. The court held that only standards or limitations being diligently prosecuted through a present judicial action (such as a consent decree) in court are preclusive, not merely similar standards enforced in administrative actions. The district court erred by applying the bar to claims that were only substantially similar or based on administrative actions. The Tenth Circuit reversed and remanded, instructing the lower court to apply the correct standard and to assess diligence only for claims identical to those enforced in the consent decrees. View "GreenLatinos v. Suncor Energy (U.S.A.)" on Justia Law

Several conservation groups challenged a 2020 amendment to the management plan for Thunder Basin National Grassland, alleging that the United States Forest Service violated the National Environmental Policy Act (NEPA) and the Endangered Species Act (ESA). The State of Wyoming intervened in the case. After the case was transferred to the United States District Court for the District of Wyoming, the district court upheld the agency’s plan amendment, ruling that it complied with both statutes.The plaintiffs appealed to the United States Court of Appeals for the Tenth Circuit. The Tenth Circuit found that the Forest Service’s amendment did not comply with NEPA, specifically because the agency issued an unduly narrow Purpose and Need statement, failed to consider a reasonable range of alternatives, and did not take the required “hard look” at environmental consequences. The Tenth Circuit did not reach the ESA claims. Instead of determining the appropriate remedy itself, the Tenth Circuit remanded the case to the district court to decide whether the plan amendment should be vacated or remanded without vacatur, instructing the district court to apply the two-part Allied-Signal test.On remand, the district court considered additional briefing and ordered remand to the Forest Service without vacatur of the 2020 Plan Amendment, finding that both Allied-Signal factors favored this approach. The plaintiffs then sought appellate review of the district court’s refusal to order vacatur. The United States Court of Appeals for the Tenth Circuit determined that it lacked jurisdiction to review the district court’s remand order because it was not a final decision under 28 U.S.C. § 1291 and no exception to the administrative remand rule applied. The appeal was therefore dismissed for lack of jurisdiction. View "Western Watersheds Project v. Forest Service" on Justia Law

President Biden expanded the Bears Ears and Grand Staircase-Escalante National Monuments in Utah, designating over 3.23 million acres under the Antiquities Act and identifying more than 500 items for protection. Plaintiffs—including the State of Utah, two counties, individuals, and an organization—objected to the scope of these expansions. They argued that the President exceeded his authority by designating items and reserving land that, in their view, did not qualify under the Act’s requirements for “historic landmarks, historic and prehistoric structures, and other objects of historic or scientific interest,” and by not limiting the land to “the smallest area compatible with the proper care and management” of those objects.Reviewing the case, the United States District Court for the District of Utah dismissed the claims. It held that sovereign immunity barred review of the President’s actions, found some plaintiffs lacked standing, and concluded that challenges to agency management plans were not ripe because those plans were not final agency actions.On appeal, the United States Court of Appeals for the Tenth Circuit affirmed in part, vacated in part, and remanded. The Tenth Circuit held that the district court erred in concluding that sovereign immunity barred all review of the President’s actions under the ultra vires doctrine, since the Antiquities Act imposes discernable statutory limits on presidential authority. The court found that plaintiffs could bring ultra vires claims alleging that the President exceeded specific statutory limits, and remanded for the district court to consider whether the President’s actions were indeed ultra vires. The Tenth Circuit also vacated and remanded the dismissal of the plaintiffs’ Administrative Procedure Act claims due to subsequent agency action, but affirmed the dismissal of claims by individual plaintiffs and one organization for lack of standing. View "Garfield County v. Biden" on Justia Law

A mining company sought to expand its underground coal mine situated beneath Indian lands. To proceed, it needed approval for a revised permit, a new federal lease, and a modification of its operations plan. The Office of Surface Mining Reclamation and Enforcement and the Bureau of Land Management jointly conducted an environmental assessment, solicited public comments, and ultimately granted the necessary authorizations for expansion.Two advocacy groups opposed the expansion, citing potential impacts on water resources and basing their challenges on the Surface Mining Control and Reclamation Act. They previously sued, raising claims under the rescinded Stream Protection Rule, but the United States Court of Appeals for the Tenth Circuit rejected those claims. The groups later amended their complaint to invoke different provisions of the Act, specifically Sections 1270 and 1276. The United States District Court for the District of Colorado denied their petition for judicial review, concluding the claims were substantially similar to those previously rejected and finding the agency had fulfilled its nondiscretionary duties.On appeal, the United States Court of Appeals for the Tenth Circuit held that the advocacy groups could not obtain relief under Section 1270 because they failed to provide adequate notice of the alleged violations and had advanced claims implicating discretionary, not mandatory, agency actions. The court also found that Section 1276 did not authorize judicial review for the groups because they had not participated in the permit-review process as required by the statute. The court clarified that commenting on an environmental assessment was not a substitute for objecting to the permit application itself. Therefore, the Tenth Circuit affirmed the district court’s denial of the petition for judicial review. View "Citizens for Constitutional Integrity v. United States" on Justia Law

A commercial air tour operator, who had previously conducted flights over Bandelier National Monument under interim authority, challenged a final order issued by the Federal Aviation Administration and the National Park Service. This order established an Air Tour Management Plan (ATMP) for Bandelier National Monument, prohibiting all commercial air tours over the site. The agencies’ process included public comment, environmental assessment, and extensive consultation with Native American tribes, who strongly objected to air tours due to cultural and privacy concerns. The operator argued that his flights were minimally intrusive, carefully routed, and brief, and that banning them would negatively impact safety and his business.The agencies initially considered various alternatives, including allowing limited air tours or maintaining previous operations, but ultimately concluded that any commercial air tour flights would create unacceptable impacts to Bandelier’s natural and cultural resources and visitor experience. The agencies’ environmental assessment under the National Environmental Policy Act (NEPA) found no significant impacts for NEPA purposes, but their record of decision emphasized significant adverse impacts to tribal cultural resources under the National Parks Air Tour Management Act (NPATMA).Upon petition for review, the United States Court of Appeals for the Tenth Circuit reviewed the agency action under the Administrative Procedure Act’s “arbitrary and capricious” standard and de novo for statutory interpretation, as required by recent Supreme Court precedent. The court held that NPATMA and NEPA use different significance standards, and that the agency’s path to finding significant adverse impacts under NPATMA was reasonably discernible in the record. The court also rejected the petitioner’s additional statutory and constitutional challenges, finding them either unexhausted or inadequately briefed. The Tenth Circuit denied the petition for review. View "Adams v. FAA" on Justia Law

In 1991, the predecessor to the plaintiffs conveyed land to the United States in a land exchange but retained certain water rights that could only be accessed through the conveyed property, now managed by the U.S. Forest Service. The conveyance documents did not mention these water rights or provide any right of access. Over the years, the plaintiffs and their predecessors sought permits from the Forest Service to access and develop the water rights, but the agency repeatedly expressed concerns about environmental impacts and indicated it had the authority to deny access. In 2010, the Forest Service formally opposed the plaintiffs’ efforts to maintain the water rights in state court, asserting it would not grant the necessary land use authorization.The United States District Court for the District of Colorado dismissed the plaintiffs’ claims under the Quiet Title Act (QTA) and the Declaratory Judgment Act (DJA). The court found the QTA claim time-barred by the statute’s twelve-year limitations period, reasoning that the plaintiffs or their predecessors were on notice of the government’s adverse claim well before the suit was filed in 2022. The court also dismissed the DJA claim, holding it was essentially a quiet title claim subject to the same limitations period.The United States Court of Appeals for the Tenth Circuit affirmed the district court’s dismissal. The Tenth Circuit held that the QTA claim was untimely because, by 2006 at the latest, the Forest Service had asserted exclusive control sufficient to put the plaintiffs on notice of its adverse claim, causing the limitations period to expire before the suit was filed. The court also held that it lacked jurisdiction over two of the plaintiffs’ requests for declaratory relief and that the third, alleging a taking, was not ripe because the plaintiffs had not first sought compensation under the Tucker Act. View "Purgatory Recreation I v. United States" on Justia Law

The Bureau of Land Management (BLM) manages wild horse herds in southern Wyoming under the Wild Free-Roaming Horses and Burros Act. This Act mandates the protection and management of wild horses on public lands. The land in question is a checkerboard pattern of alternating public and private ownership. Since 1979, BLM managed these herds with the consent of private landowners. However, in 2010, private landowners revoked their consent, making it difficult for BLM to maintain the herds. In 2022, BLM amended its Regional Management Plan (RMP) to change two Herd Management Areas (HMAs) to Herd Areas (HAs), reducing the wild horse population goal to zero in two areas and significantly reducing it in another.The United States District Court for the District of Wyoming reviewed the case and ruled in favor of BLM, finding that the agency had not acted arbitrarily or capriciously in amending the RMP. The court held that any challenge to BLM’s decision to remove horses was unripe and that BLM had complied with the relevant statutes.The United States Court of Appeals for the Tenth Circuit reviewed the case and found that BLM failed to consider whether its decision would achieve and maintain a thriving natural ecological balance, as required by the Wild Horse Act. The court held that BLM’s decision was arbitrary and capricious because it did not base its decision on this statutory requirement. The court reversed the district court’s decision and remanded the case to determine the appropriate remedy, considering the practical consequences of vacatur and the potential for BLM to substantiate its decision on remand. View "American Wild Horse Campaign v. Raby" on Justia Law

Two environmental groups, WildEarth Guardians and Western Watersheds Project, challenged a decision by the U.S. Forest Service (USFS) to open new domestic sheep grazing allotments, known as the Wishbone Allotments, in the Rio Grande National Forest, Colorado. The groups argued that the allotments posed a high risk of disease transmission to local populations of Rocky Mountain bighorn sheep, which are vulnerable to diseases from domestic sheep.The USFS had previously vacated larger grazing allotments in 2013 and 2015 due to high risks to bighorn sheep, based on a "risk of contact model" (RCM). However, in 2017, the USFS decided to open the Wishbone Allotments despite the RCM predicting a high risk of contact. The USFS justified this decision by considering additional local factors, such as geography and herding practices, which they claimed would mitigate the risk. The environmental groups objected, arguing that these local factors were unsupported by scientific data.The United States District Court for the District of Colorado denied the groups' petition, finding that the USFS did not violate the National Environmental Protection Act (NEPA). The groups then appealed to the United States Court of Appeals for the Tenth Circuit.The Tenth Circuit found that the USFS acted arbitrarily and capriciously in approving the Wishbone Allotments. The court held that the USFS failed to provide a reasoned explanation for downgrading the RCM's high-risk rating based on local factors, which lacked scientific support. The court also found that the USFS did not adequately consider the cumulative impacts on neighboring bighorn sheep herds. Consequently, the Tenth Circuit reversed the district court's decision and remanded the case to determine the appropriate remedy. View "WildEarth Guardians v. U.S. Forest Service" on Justia Law

The case involves the Center for Biological Diversity challenging the United States Environmental Protection Agency's (EPA) approval of Colorado's revised implementation plan for ambient air quality standards. Colorado revised its plan in 2019, changing the wording of a permit requirement for new emission sources and adding language to the definition of a key threshold for evaluating compliance. The Center argued that the revisions would prevent regulators from blocking construction of new sources that generate excessive emissions and allow regulators to disregard emissions during drilling, fracking, and well completion.The EPA approved Colorado's revisions, leading the Center to file a petition for review. The State of Colorado intervened to defend the revisions. The Center contended that the revised permit requirement and the new definition of "commencement of operation" would undermine air quality standards.The United States Court of Appeals for the Tenth Circuit reviewed the case. The court rejected the Center's first challenge, concluding that the Center had not shown an effect from the revised wording in the permit requirement. However, the court agreed with the Center on the second challenge, finding that the EPA acted arbitrarily and capriciously by failing to address the potential emissions during drilling, fracking, and well completion. The court held that the EPA did not independently assess whether the revised definition created a substantive change and remanded the case to the EPA for further explanation without vacating the EPA's prior approval of the revised definition. The court denied the petition for review regarding the revised permit requirement but granted it concerning the revised definition of "commencement of operation." View "Center for Biological Diversity v. EPA" on Justia Law

Iron Bar Holdings, LLC, a private landowner in Wyoming, owns a checkerboarded ranch interspersed with federal and state public lands. The only way to access these public lands, other than by aircraft, is by corner-crossing, which involves stepping from one public parcel to another at their adjoining corners without touching the private land in between. In 2020 and 2021, a group of hunters from Missouri corner-crossed to hunt elk on the public lands within Iron Bar's ranch. Iron Bar's property manager confronted the hunters, and law enforcement was contacted, but no citations were issued. In 2021, the hunters were prosecuted for criminal trespass but were acquitted. Iron Bar then filed a civil lawsuit for trespassing, seeking $9 million in damages.The United States District Court for the District of Wyoming granted summary judgment in favor of the hunters, holding that corner-crossing without physically contacting private land and without causing damage does not constitute unlawful trespass. Iron Bar Holdings appealed the decision.The United States Court of Appeals for the Tenth Circuit reviewed the case. The court held that while Wyoming law recognizes a property owner's right to exclude others from their airspace, federal law, specifically the Unlawful Inclosures Act (UIA) of 1885, overrides state law in this context. The UIA prohibits any inclosure of public lands that obstructs free passage or transit over them. The court found that Iron Bar's actions effectively enclosed public lands and prevented lawful access, which is prohibited by the UIA. The court affirmed the district court's decision, allowing the hunters to corner-cross as long as they did not physically touch Iron Bar's land. View "Iron Bar Holdings v. Cape" on Justia Law