ONTERRIS AIR QUALITY SERVICES, LLC

MONTROSE AIR QUALITY SERVICES, LLC specializes in air quality monitoring, emissions modeling, and environmental compliance services for federal and state regulatory frameworks. The firm delivers technical expertise in ambient air sampling, stack testing, dispersion modeling using EPA-approved tools such as AERMOD and CALPUFF, and permit support under the Clean Air Act. Their work centers on data collection, analytical validation, and reporting to meet EPA and state environmental agency requirements, with a focus on industrial facility compliance, fugitive emissions assessments, and air toxics monitoring. Differentiators include precision in field instrumentation calibration, real-time sensor deployment, and integration of meteorological data into regulatory submissions, ensuring defensible outcomes for permitting and enforcement actions. Award history is not available to confirm specific agency relationships, but given the nature of their services, their work likely supports environmental regulatory bodies such as the EPA, Department of Defense, and state air quality management districts. Their engagements typically involve technical consulting, compliance audits, and air quality impact assessments for infrastructure or industrial projects requiring environmental review. The primary NAICS code 541380, Environmental Consulting Services, reflects a focus on applied environmental science and regulatory support rather than construction or remediation. The firm positions itself within the environmental compliance and air quality management vertical, serving clients in energy, manufacturing, and transportation sectors requiring adherence to federal and state air quality standards. MONTROSE AIR QUALITY SERVICES, LLC is structured as a small business (2L) based in Irvine, California. The company holds no government certifications and operates as an independent technical services provider with a regional footprint centered on California’s stringent air quality regulatory environment. Their market positioning is that of a specialized, field-responsive consultancy focused on technical rigor and regulatory precision in air quality management.