New Working in Waterways Permit Application for East Walker River: Libra Water Project

NOTICE OF PROPOSED ACTION – Bureau of Water Pollution Control

Web Posting: 11/26/2025

Deadline for Comments: 12/29/2025

SOLV Energy, LLC

Libra Solar

Permit Number NS2026506

This is a new permit. The Permittee, SOLV Energy LLC, has applied for a new individual Working in Waterways permit for the Libra Solar project. The access road and project are located on vacant public land managed by the Bureau of Land Management between Mason Valley and the Walker River Indian Reservation, in Mineral and Lyon Counties. The Permittee is proposing to operate heavy equipment (rolling stock) within the Nelson Ditch, High Ditch and unnamed ephemeral tributaries to the East Walker River and discharge private well water to waters of the State (groundwater) for dust control for the construction, operation and decommission of a 700-megawatt (MW) alternating current solar photovoltaic power generating facility and 700-MW battery storage system. Best Management Practices (BMPs) shall be utilized to prevent erosion and degradation of waters of the State.

On the basis of preliminary review of the requirements of the Nevada Revised Statutes, as amended, and implementing regulations, the Administrator proposes to issue Permit NS2026506 to discharge for a five (5) year period, subject to certain effluent limitations.

Persons wishing to comment upon or object to the proposed determinations by the Administrator regarding permit issuance should submit their comments or request a hearing in writing, hand delivered or postmarked no later than 5:00 P.M. on 12/29/2024, either in person or by mail to:

Department of Conservation and Natural Resources

Division of Environmental Protection

Bureau of Water Pollution Control

901 South Stewart Street, Suite 4001

Carson City, NV 89701

The request for a hearing must be filed within the comment period and must indicate the interest of the person filing the request and the reasons why a hearing is warranted. All comments or objections received within the thirty (30) day period will be considered in the formulation of final determination(s) regarding the application. If written comments indicate a significant degree of public interest in the proposed permit, the Administrator shall hold a public hearing. A public notice of such hearing will be issued not less than thirty (30) days prior to the hearing date. If no hearing is held and the determinations of the Administrator are substantially changed from the tentative determinations, the Administrator will give public notice of the revised determinations. Additional comments and objections will be considered at that time.

The applications, proposed permits, comments received, and other information are on file and may be copied or copies may be obtained by writing to the above address or by contacting Aaron Park, Bureau of Water Pollution Control, at (775) 687­-9427 or at apark@ndep.nv.gov. The office facsimile number is (775) 687-­4684. For further information, the fact sheet for this project can be viewed at the following website: https://ndep.nv.gov/posts/category/water.

Please bring the forgoing notice to the attention of all persons whom you know would be interested in this matter.