NOTICE OF PROPOSED ISSUANCE OF NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) PERMITS TO DISCHARGE TO WATERS OF THE UNITED STATES

Public Notice United States Environmental Protection Agency Region 10 1200 Sixth Avenue, Suite 155, WD 19-C04 Seattle, Washington 98101 (206) 553-0523 or 1-800-424-4372 (within Region 10 only) NOTICE OF PROPOSED ISSUANCE OF NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) PERMITS TO DISCHARGE TO WATERS OF THE UNITED STATES Public Notice No.: WA0026778; WA0026701; WA0026832; WA0026824; WA0026816; WA0026808; WA0026786; WA0026794 Technical Contact: Jennifer Wu 206-553-6328 1-800-424-4372 ext. 6328 (within Region 10) Wu.Jennifer@epa.gov Public Notice Issuance Date: March 18, 2020 Public Notice Expiration Date: May 4, 2020 1. Applicants The EPA proposes to issue National Pollutant Discharge Elimination System (NPDES) permits for four hydroelectric generating facilities on the Lower Columbia River and four hydroelectric generating facilities on the Lower Snake River operated by the United States Army Corps of Engineers: Bonneville Project, WA0026778 Exit 40, Interstate 84 Cascade Locks, Oregon 97014 The Dalles Lock and Dam, WA0026701 Exit 88, Interstate 84 The Dalles, Oregon 97058 John Day Project, WA0026832 Exit 109, Interstate 84 Rufus, Oregon 97050 McNary Lock and Dam, WA0026824 82925 DeVore Road Umatilla, Oregon 97882 Ice Harbor Lock and Dam, WA0026816 2763 Monument Drive Burbank, Washington 99323 Lower Monumental Lock and Dam, WA0026808 5220 Devil’s Canyon Road Kahlotus, Washington 99335 Little Goose Lock and Dam, WA0026786 1001 Little Goose Dam Road Dayton, Washington 99359 Lower Granite Lock and Dam, WA0026794 885 Almota Ferry Road Pomeroy, Washington 99133 These permits will address oil and grease discharges, pH, and cooling water discharges from hydroelectric generating facilities. Fact sheets are available. 2. Tentative Determination The Region 10 Office of EPA has tentatively determined to issue discharge permits to the above listed applicants. 4. Public Comments Persons wishing to comment on the tentative determination contained in the draft permits or wishing to request that a public hearing be held, may do so in writing to the above address or by e-mail to Wu.Jennifer@epa.gov by May 4, 2020. A request for a public hearing shall state the nature of the issues to be raised as well as the requester’s name, address and telephone number. Comments must be received by May 4, 2020 to be considered in the formulation of final determinations. All comments should include the name, address and telephone number of the commenter and a concise statement of the exact basis of any comment and the relevant facts upon which it is based. All written comments and requests should be submitted to EPA at the above address to the attention of the Director, Water Division. 5. Administrative Record The proposed NPDES permits and other related documents are on file and may be inspected at the EPA Region 10 office at the above address any time between 8:30 a.m. and 4:00 p.m., Monday through Friday. Copies and other information may be requested by writing to the EPA at the above address to the attention of the NPDES Permitting Section or by sending an e-mail to Washington.Audrey@epa.gov, or by calling (206) 553-0523. Copies of the proposed permits and fact sheets can also be downloaded from the internet for the Lower Columbia River hydroelectric generating facilities (https://www.epa.gov/npdes-permits/proposed-dis charge-permits-federal-hydroelectric-projects-lower-columbia-river) and for the Lower Snake River facilities (https://www.epa.gov/npdes-permits/proposed-discharge-permits-federal-hydroelectric-projects-lower-snake-river). The proposed permits and fact sheets are also on file at the following location: U.S. Environmental Protection Agency Region 10 Washington Operations Office 300 Desmond Dr. SE Suite 102 Lacey, WA 98503 Disability Reasonable Accommodation Notice: If you need a reasonable accommodation for a disability, please contact Audrey Washington at (206) 553-0523 (voice). TTY/TDD users please dial Washington Relay Service at 1 (800) 833-6388. Please provide one week advance notice for special requests not related to ongoing programs and services. Published March 20, 2020. BT158404

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