Accepting comments from November 24, 2025, through December 24, 2025.

The Idaho Department of Environmental Quality (DEQ) is seeking comment on a draft reuse permit renewal (M-188-04) for Black Rock Utilities, Inc.

Black Rock Utilities, Inc (BRU) owns and operates a private municipal Class II wastewater treatment plant and Class C reuse facility that services a residential and golfing community on the southwestern edge of Lake Coeur d’Alene. The nearest city, approximately 16 miles to the southeast, is Worley, Idaho. BRU’s reuse facility produces 9.71 million gallons of recycled water annually, which is used for to irrigate 25 acres of poplar trees and pasture grass during the growing season. The draft reuse permit establishes monitoring requirements, limits on nutrient and hydraulic loading, and conditions established by DEQ to protect public health and the environment.

The permit materials are available for public review at DEQ’s State Office (1410 North Hilton Street, Boise, Idaho 83706) and on DEQ’s Public Comment Opportunities page. Written comments will be accepted through December 24, 2025, until 5 p.m. Mountain Time. Submit comments electronically using the form below or by mail or email to:

Nathan Costner
Reuse Permit Writer
1410 N. Hilton St.
Boise, Idaho 83706
nathan.costner@deq.idaho.gov

Related Documents
Permit Materials

Accessibility Services: The Idaho Department of Environmental Quality will provide reasonable language access services and/or disability services for documents at no charge. To request an accommodation under Title VI of the Civil Rights Act of 1964 or Americans with Disabilities Act, contact DEQ’s nondiscrimination coordinator at (208) 373-0271 or accessibility@deq.idaho.gov. Para obtener información en español, visite https://www.deq.idaho.gov/about-us/accessibility/.