What's Happening?
Aurora's proposed Wild Horse Reservoir project in Park County is undergoing intense review under Colorado's new state law, Regulation 87, designed to protect critical wetlands and streams. This project marks the first major review since the regulation
was approved in December, replacing federal rules that were eliminated by a 2023 U.S. Supreme Court case, Sackett v. EPA, and subsequent EPA actions. The Colorado Department of Public Health and Environment (CDPHE) is responsible for enforcing this new regulation. The $600 million-plus Wild Horse Reservoir project aims to store 93,000 acre-feet of water, nearly doubling the capacity of the city's existing Spinney Mountain Reservoir. Aurora Water officials state the reservoir is crucial for securing future water supplies due to growth-driven demand and climate change, and will primarily store water already owned by Aurora, freeing up space in Spinney Mountain Reservoir. This newly accessible water is intended to expand Aurora's large-scale recycled water program.
Why It's Important?
This project is a significant test case for Colorado's ability to independently protect its wetlands and water resources following the rollback of federal protections. Colorado is one of the few states that has successfully crafted new rules, making the outcome of this review a potential precedent for other states facing similar challenges. The project highlights the increasing pressure on water resources in the Western U.S. due to population growth and climate change, and the complex balance between urban development and environmental conservation. The concerns raised by Western Slope water agencies and environmental groups, such as the Colorado River District, the Eagle River Water and Sanitation District, and Save the Colorado, underscore the broader implications for the state's drought-stressed water supplies and the potential for inter-basin water disputes. The transparency of water management and the clarity of whether new diversions are involved are critical issues for public trust and environmental stewardship.
What's Next?
The public comment period for the Wild Horse Reservoir project has been extended to November 19, allowing more time for the application to be thoroughly examined. Regulators have approximately two years to complete the review process under the new Regulation 87. If approved, Aurora officials anticipate construction to take five to six years, with the reservoir likely taking five to ten years to fill. The CDPHE will continue to oversee the enforcement of Regulation 87, and the outcome of this review will set a significant precedent for future water infrastructure projects in Colorado and potentially influence other states considering similar wetland protection measures. Stakeholders, including environmental groups and other water agencies, will closely monitor the review process and its findings, particularly regarding the project's impact on existing water rights and environmental flows.
Beyond the Headlines
The Wild Horse Reservoir project and the implementation of Regulation 87 reflect a broader national trend where states are increasingly taking on environmental protection responsibilities as federal oversight diminishes. This shift raises questions about the consistency and effectiveness of environmental regulations across different states. The debate over whether the project involves new water diversions or merely reallocates existing supplies touches upon the ethical considerations of water rights and resource allocation in an arid region. The long-term implications of such large-scale water projects include potential ecological impacts on downstream ecosystems, changes in regional hydrology, and the sustainability of urban growth in water-stressed areas. The case also highlights the ongoing tension between economic development, population growth, and the imperative to conserve natural resources, prompting a reevaluation of water management strategies in the face of a changing climate.
