Valero Refining Company- Issuance of an Alteration Permit to Operate for the installation of piping and fugitive components at S-1010 Hydrogen Plant -AN714083

The Bay Area Air Quality Management District has issued an Alteration Permit to Operate to Valero Refining Company for minor modifications to the S-1010 Hydrogen Plant in Fairfield, California, to reroute atmospheric vents to the base of the existing North Flare (S-19) in compliance with Regulation 13, Rule 5. The alteration involves the installation of new piping and fugitive components but does not change the plant's hydrogen production rate of 164 million standard cubic feet per day, nor does it involve any upgrades or modifications to pumps, compressors, or other upstream or downstream equipment. Fugitive emissions from the plant are expected to increase by less than 10 pounds per day, and toxic air contaminant emissions remain below regulatory trigger levels, qualifying the project for exemption under Regulation 2, Rule 1, Section 128.21. Although the modification is not considered a formal change requiring BACT or emission offsets under Regulation 1, Section 115, the facility must still implement Best Available Control Technology for fugitive components as mandated by Regulation 2, Rule 1, Section 128.21. The project qualifies as a ministerial action under CEQA Guidelines Section 15301, meaning approval was granted based on objective regulatory criteria without discretionary evaluation or competitive selection. The work is physically located at the Valero facility in Fairfield, and compliance will be verified through regulatory review by the Air District, with any changes to the facility’s Potential to Emit to be addressed in future permit applications. No federal acquisition contract clauses, pricing data, payment terms, or procurement-specific requirements are involved, as this is an environmental permitting action, not a procurement contract.