Pace Analytical Services, LLC - El Monte

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(A2LA Cert. No. 3778.03) Revised 05/20/2026 Page 1 of 1 SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017 PACE ANALYTICAL SERVICES, LLC – EL MONTE 3565 Lexington Avenue El Monte, CA 91731 Tina Shidel Phone: 386-368-7410 tina.buttermore@pacelabs.com BIOLOGICAL Valid To: August 31, 2026 Certificate Number: 3778.03 In recognition of the successful completion of the A2LA evaluation process, (including an assessment of the laboratory's compliance with A2LA’s R261 – Specific Requirements – Environmental Microbiology Laboratory Accreditation Program ), accreditation is granted to this laboratory to perform the following tests on the materials listed below: Test Test Method Matrix Spore Trap – Fungal Spores, Fungal Structures, Hyphae, Pollen, Insect Fragments, and Fibrous Material ENV-SOP-BDSG-0044 Air

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For the tests to which this accreditation applies, please refer to the laboratory’s Biological Scope of Accreditation. Accredited Laboratory A2LA has accredited PACE ANALYTICAL SERVICES, LLC – EL MONTE El Monte, CA for technical competence in the field of Biological Testing This laboratory is accredited in accordance with the recognized International Standard ISO/IEC 17025:2017 General requirements for the competence of testing and calibration laboratories. This laboratory also meets the requirements of A2LA’s R261 – Specific Requirements – Environmental Microbiology Laboratory Accreditation Program. This accreditation demonstrates technical competence for a defined scope and the operation of a laboratory quality management system (refer to joint ISO-ILAC-IAF Communiqué dated April 2017). Presented this 19th day of May 2026. _______________________ Mr. Trace McInturff, Vice President, Accreditation Services For the Accreditation Council Certificate Number 3778.03 Valid to August 31, 2026 Revised May 20, 2026