Document reXMryNvG3Q8Vp63v98xL1r2r
with personnel exposure requirements, or to make recommendations for additional protective equipment.
14. Safely implementing enclosures of this magnitude takes time. Based on my prior experience installing existing enclosures at the Facility, the process safety concerns, and the necessary design, review, and approval process, I estimate a period of at least two years--and more likely 30-36 months--would be required before such enclosures could be installed in tandem with the additionally required thermal oxidizer.
15. The rest of the ERPs previously evaluated following the Proposed Rule would still require the same costs and time previously estimated.
16. The requirements of the Final Rule do not alter my opinion that EPA's proposed Statement of Final Relief requires emission reductions that are not feasible and may be impossible. See Remedy Declaration 10.
17. I reserve the right to further supplement this Declaration.
I declare under penalty of perjury that the foregoing is true and correct.
Executed on February 3, 2025.
Sierra Club FOIA 2025-EPA-04883
ED_018388_00000139-00006 SC_EVERSPLIT0005296
Message
From:
DeLibero, Matthew J
[MJDeLibero@uss.com]
Sent:
3/31/2025 9:00:00 PM
To:
AirAction
[AirAction@epa.gov]; Zeldin,
Lee [Zeldin.Lee@epa.gov]
CC:
Lassiter, Penny
[Lassiter. Penny@epa.gov];
Tsirigotis, Peter
[Tsirigotis.Peter@epa.gov];
Hamilton, Sabrina
[Hamilton.Sabrina@epa.gov];
Tardif, Abigale (Abbie)
[Tardif.Abigale@epa.gov];
Szabo, Aaron
[Szabo.Aaron@epa.gov];
schwab.justin@epa.goy;
Dzurinko, Mike G
[MDzurinko@uss.com];
Hardin, Christopher W
[CWHardin@uss.com];
Jeffrey, Mark A
[MJeffrey@uss.com]; Tunno,
Brett J [BJTunno@uss.com];
Woodwell, Tishie W
[TWoodwell@uss.com]
Subject:
Presidential Exemption: Coke
MACT RTR Rule (2024): U. S.
Steel's Clairton, PA Facility
Attachments:US Steel Request for
Presidential Exemption Coke
MACT RTR.pdf
Caution: This email originated from outside EPA, please exercise additional caution when deciding whether to open attachments or click on provided links.
Flag:
Follow up
To Whom It May Concern,
Please see the attached request from U.S. Steel for a Presidential Exemption for the Coke MACT for U.S. Steel's Clairton, PA Facility. Let us know if you have any questions.
Best Regards,
Matthew DeLibero
Nettaatt9, De.dideizo.
Director Environmental, Reliability, & Operational Excellence U.S. Steel Mon Valley Works (o): 412-233-1200 (e): IVIJDeLibero@uss.com
Sierra Club FOIA 2025-EPA-04883
ED_018388_00000140-00001 SC_EVERSPLIT0005297