Appointment From: Sent: To: Coogan, Daniel [Coogan.Daniel@epa.gov] 2/18/2025 12:24:50 PM Loving, Kathryn [Loving.Kathryn@epa.gov]; Killian, Cole [Killian.Cole@epa.gov] Subject: Location: Check-in WJCN 3309 Start: 2/18/2025 5:00:00 PM End: 2/18/2025 5:25:00 PM Show Time As: Tentative Required Attendees: Loving, Kathryn; Killian, Cole I wanted to connect briefly to go over how we define `Mission Critical' contracts/ grants.

Message From: Sent: To: Subject: Brown, Ashley [Brown.Ashley@epa.gov] 3/6/2025 9:29:11PM Francesca Gourdikian [GourdikianF@api.org]; Abboud, Michael [abboud.michael@epa.gov] RE: API Invitation for Administrator Zeldin- March 20th Hey Francesca!

Message From: Sent: To: Subject: Attachments: Brown, Ashley [/O=EXCHANGELABS/OU=EXCHANGE ADMINISTRATIVE GROUP (FYDIBOHF23SPDLT)/CN=RECIPIENTS/CN=8D0606BC1F694C6AA1C3A90C00B7825D-51E37D1D-82] 2/20/2025 7:52:09 PM Francesca Gourdikian [GourdikianF@api.org] RE: API Invitation for Administrator Zeldin- March 20th EPA Event Information Form.docx Hi Francesca!

From: ent: o: Toomey, Megan A [Megan.Toomey@talenenergy.com 4/11/2025 3:37:39 PM Tardif, Abigale (Abbie) [Tardif.Abigale@epa.gov] ubject: Location: Accepted: Confirmed: In person OAR External Meeting with Talen Energy Microsoft Teams Meeting; DCRoomWJCN5415/OAR tart: 4/24/2025 7:15:00 PM End: 4/24/2025 7:45:00 PM how Time Busy s: Caution: This email originated from outside EPA, please exercise additional caution when deciding whether to open attachments or click on provided links.

From: Richard Huggins Jr.

EPA ADMINISTRATOR EVENT INFORMATION FORM This form assists in planning participation in events and activities.

Message From: Sent: To: CC: Subject: Brown, Ashley [Brown.Ashley@epa.gov] 2/19/2025 6:19:56 PM Gustafson, Daniel G [daniel_gustafson@ios.doi.gov]; kdoran@westgov.org; Johnson, Ashley A [ashleyjohnson@ios.doi.gov]; ZeldinScheduling [ZeldinScheduling@epa.gov] Talmage, Sarah [Talmage.Sarah@epa.gov]; Barja, Jaide [Barja.Jaide@epa.gov]; Bowles, Jack [Bowles.Jack@epa.gov]; Gill, Sonam [Gill.Sonam@epa.gov] RE: [EXTERNAL] RE: EPA at Breakfast Danny, Thank you so much.

Message From: Mark Johnson (TMNA) [mark.johnson@toyota.com] Sent: 2/25/2025 3:27:13 PM To: Brown, Ashley [Brown.Ashley@epa.gov] Subject: RE: Introduction/Meeting Request Attachments:EPA Meeting Information Form.docx Caution: This email originated from outside EPA, please exercise additional caution when deciding whether to open attachments or click on provided links.

From: Boxerman, Samuel B.

Request for Presidential Exemption: National Emissions Standards for Hazardous Air Pollutants: Ethylene Oxide Emissions Standards for Sterilization Facilities Residual Risk and Technology Review (89 FR 24090; April 5, 2024) (Sterilizer Rule): DeRoyal Industries, Inc., 1 135 and 121 1 Highway 33 South (Two Facilities), New Tazewell, TN 37825 About DeRoyal Industries, Inc.: DeRoyal is a global medical device manufacturer headquartered in Powell, Tennessee, with over 50 years of experience serving, the healthcare industry.

From: Shannon Mikula [smikula@minnkota.com] ent: 3/28/2025 11:07:57 PM o: AirAction [AirAction@epa.goy] C: Mac McLennan [mmclennan@minnkota.com object: Presidential Exemption: National Emission Standards for Hazardous Air Pollutants: Coal and Oil-Fired Electric Utility Steam Generating Units MATS RTR: Milton R Young Station ttachments:MINNKOTA - MATS 112 Exemption Letter 20250328.pdf mportance: High Flag: Follow up Caution: This email originated from outside EPA, please exercise additional caution when deciding whether to open attachments or click on provided links.

compliance with any and all final standards in the upcoming FEE NESHAP within 2 years of publication of the final rule in the federal register.

iNDGRAMA VENTURES Indorama Ventures-- Indovinya PO Box 847 I 2701 Spur 135 Port Neches, TX 77651 USA http://indovmyarndorarnaventures corn March 31 2025 VIA E-MAIL U S.

NorthWestern Energy Delivering a Bright Future Transmission limitations on the ability to import power; Inability to close Colstrip prior to 2035 without constructing replacement thermal bascload capacity; Costs of installing additional controls on Colstrip; Colstrip and NorthWesteni portfolio scenarios; Cost and safety hazards of closing Colstrip prior to 2036 without constructing replacement thermal baseload capacity; Consequences of diverting capital from other beneficial projects to comply with the Proposed Rule Prejudice to NorthWestern of the Proposed Rule; Statutory and Administrative Procedure Act deficiencies with the Proposed Rule; and, Requests.

USCA Case #24-1190 Co strip PM Evaluation -- Final Document #2062093 Apri 29, 2024 Filed: 06/27/2024 Page 42 of 92 Cost Evaluation 5.0 COST EVALUATION Included in this section of the report are the cost estimates for both control technologies evaluated for application at Colstrip.