Document jYoMnxMyXJney4Q8jBZ1DapN

Marcia Smith Senior Vice President, Sustainability and External Affairs marcia.smith@teck.com Teck Metals Ltd. Suite 3300, 550 Burrard Street Vancouver, BC Canada V6C 0B3 +1 604 699 4616 Tel +1 604 699 4750 Fax www.teck.com By Email Teck February 13, 2018 Chris Hladick, Regional Administrator United States Environmental Protection Agency, Region 10 1200 Sixth Avenue, Suite 900 Seattle, WA 98101-3140 Dear Mr. Hladick: Re: Upper Columbia River/Lake Roosevelt Site I am writing to thank you again for taking the time to meet with my colleagues and me on February 6, so that we could provide some background information on Teck and outline Teck American Incorporated's activities in Washington State and Alaska, while sharing our perspective on the remedial investigation and feasibility study ("RI/FS") underway in the Upper Columbia River. I hope that we managed to convey Teck's commitment to working cooperatively with Indigenous communities, the EPA and State officials, both in Alaska and in Washington State, and our determination to do the right thing when it comes to legacy impacts of the historical activities of the smelter operations at Trail, British Columbia. As Peter Rozee said at the meeting, from the beginning Teck has consistently said that if there are real risks to human health or the environment associated with Trail's historical operations, whether in Canada or in the United States, we will take appropriate action to deal with them. We have lived up to that commitment. We have conducted voluntary removal actions at Black Sand Beach and of soils at upland properties. It is important to note that significant soils removal were undertaken even after the Ninth Circuit Court of Appeals determined that Teck had no legal obligation to do so. As discussed at the meeting, we have concerns with the direction that the RI/FS seems to be taking and Peter will be writing separately on that subject. Again, thank you for taking the time to meet with us. We look forward to a productive working relationship as we move forward both at Red Dog and on this important work in the Upper Columbia River. Please do not hesitate to call if it would be helpful to discuss these matters. In addition, we would be very pleased to host a tour of either Red Dog or the UCR Site if you would find that informative. Yours sincerely, Marcia Smith Senior Vice President, Sustainability and External Affairs Cc: Sheryl Bilbrey, Director, Office of Environmental Cleanup, Environmental Protection Agency Peter Rozee, Senior Vice President, Commercial and Legal Affairs Kris McCaig, Manager, Environment and Public Affairs Christian Baxter, Director, Environmental Performance Tom Syer, Head, Government Affairs Sierra Club v. 6RAs18sv3472 NDCA Tiers 8&9 ED 002061 00114180-00001