Document 5LXrqVEoNONmqmvwyznz5npy8

Reasons why additional time is needed A one-year extension is needed in order to properly engineer and construct the projects. Typically, it takes 36 months to complete projects similar to these. Key steps in the engineering, procurement, and construction process are: Major Steps in Process Testing to determine "In ED Service" and PreFEED Project Scoping Front End Engineering Design (FEED) Detailed Design Engineering Procurement (Obtaining Vendor Bids, Vendor Questions & Selection, Equipment Fabrication & Delivery to site) Construction of Required Equipment, Piping and Instrumentation Develop Operating Procedures, Commissioning Equipment, and Placing Into Service Estimated Time to Complete (Months) 6 12 9 19 (overlaps with engineering) 10 (overlaps with detailed engineering) 1 -- 1.5 months Total Estimated Time for Project including testing 36 to determine "In BO Service": Note: Some steps like Procurement overlap with Front End Engineering Design, Detailed Design Engineering, and Construction. Construction also overlaps with Detailed Design Engineering. SECTION II CERTIFICATION (Note you may edit the text in this section as deemed appropriate) Based upon information and belief formed after a reasonable inquiry, I, as a responsible official of the above-mentioned facility, certify the information contained in this request is accurate and true to the best of my knowledge. Name of Responsible Official (Print or Type) Fernando Frollini Signature of Responsible Official Title Responsible Care Leader Date (mm/dd/n) 02/26/2025 Page 3 Sierra Club FOIA 2025-EPA-04883 ED_018388_00000034-00003 SC_EVERSPLIT0005203