Document oeEb9xZ2Ge7rNBYrqKLB1r0kE

ATTACHMENT 3 2024-EPA-05254 Sierra Club FOIA 2024-EPA-05254 ED_017426_00003044-00001 SC_EVERSPLIT0002051 Attachment 3 STATE OF WASHINGTON DEPARTMENT OF ECOLOGY P.O. Box 47600 Olympia, Washington 98504-7600 (360) 407-6000 TDD Only (Hearing Impaired) (360) 407-6006 June 13, 2001 Mr. Kevin Scott Environmental Manager Boise Cascade Wallula Mill P.O. Box 500 Wallula, WA 99363 Dear Mr. Scott: On May 15, 2001, Boise Cascade submitted a letter to Ecology containing information regarding Wallula mill's No. 1 M&D Digester pocket feeder vent and its inapplicability to the rule, 40 CFR 63.443, Standard for Pulping System at Kraft, Soda, and Semichemical Processes. The rule states that chip steamers not using fresh steam are subject to the LVHC collection requirements in the National Emission Standard for Hazardous Air Pollutants for the Pulp and Paper Industry. Boise Cascade believes the rule should not apply because the steam supply system provides only fresh steam to the pocket feeder. After reviewing the information, related rules, EPA's guidance, Ecology agrees that the No. 1 M&D pocket feeder vent is not subject to the LVHC collection requirements when using only fresh steam in the pre-teaming process. If you have any questions regarding this approval, please contact me at (360) 404-6948. Sincerely, Teddy V. Le, P.E. Industrial Section cc: Merley McCall, Ecology 2024-EPA-05254 Sierra Club FOIA 2024-EPA-05254 ED_017426_00003044-00002 SC_EVERSPLIT0002052