Below are EPA's National Pollutant Discharge Elimination System (NPDES) final permit and supporting documents for the Dawn Mining Company Midnite Mine discharging to the Spokane Arm of Lake Roosevelt on the Spokane Indian Reservation in eastern Washington.
- Permit number: WA0026841
- Effective date: January 1, 2019
- Permit expires: December 31, 2023
You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.
NPDES Permit, Midnite Mine, #WA0026841 (PDF)(29 pp, 286 K,
November 15, 2017)
NPDES Permit Fact Sheet, Midnite Mine, #WA0026841 (PDF)(50 pp, 1 MB,
Provides technical basis for NPDES permit.
Response to Comments, Midnite Mine NPDES Permit, #WA0026841 (PDF)(9 pp, 74 K,
EPA's responses to public comments on the April 2017 draft NPDES permit.