MARICOPA COUNTY AIR QUALITY DEPARTMENT PUBLIC NOTICE Start of 30-day Public Comment Period: September 17, 2025 End of 30-day Public Comment Period: October 17, 2025 Maricopa County Air Quality Department, 301 W. Jefferson Street, Suite 410, Phoenix, AZ 85003, has processed applications for the following facilities and is proposing to issue air quality permits. Facility ID F001569. Permit Number P0013172. Martin Marietta Arizona LLC, 5159 N El Mirage Rd, Litchfield Park 85340, Nonmetallic Mineral Processing, Products of Combustion, Particulate Matter, Volatile Organic Compounds, Hazardous Air Pollutants. Facility ID F054118. Permit Number P0013243. Vantage Data Centers AZ2, 14575 W Broadway Rd, Goodyear 85338, Data Center, Products of Combustion. Facility ID F003555. Permit Number P0013024. Corporate Properties Tempe SPE LLC, 300 E Rio Salado Pkwy, Tempe 85281, Commercial Office Buildings, Products of Combustion. The applications, proposed Technical Support Documentation, and proposed permits may be reviewed online at maricopa.gov/1624/Public-Notices. Additional information may be obtained by contacting the department at (602) 506-6010 or submitting a public record request online at maricopa.gov/5073/Public-Records-Request. In accordance with A.R.S. §49-426 and §49-480, any person may submit written comments and/or a written request for a public hearing on the proposed permits. All comments and requests must be received no later than the 30th day following the first date of publication. Submissions should be mailed to the Permitting Division Manager at 301 W. Jefferson St., Suite 410, Phoenix, AZ 85003 or by email at AQPermits@maricopa.gov. Any written comment shall state the name and mailing address of the person, shall be signed by the person, his agent, or his attorney and shall clearly set forth reasons why the permit should or should not be issued. Grounds for comment are limited to whether the proposed permit meets the criteria for issuance as prescribed in ARS §§49-426, 49-480, or 49-481. MCAQD will take reasonable measures to provide access to department services to individuals with limited ability to speak, write, or understand English and/or to those with disabilities. Requests for language interpretation services or for disability accommodations must be made at least 48 hours in advance by contacting: (602) 506-6443. MCAQD tomará las medidas necesarias para brindar acceso a los servicios del departamento a personas que no dominan el idioma inglés y/o personas con discapacidades. Las solicitudes de servicios de interpretación de otro idioma o adaptaciones para discapacitados deben realizarse con al menos 48 horas de anticipación comunicándose con: (602) 506-6443. Pub: Sept. 18, 25, 2025