We perform opacity observations in accordance with EPA Method 9 and Method 22 to demonstrate compliance with air permits and NSPS Subpart OOO requirements.
All evaluations are conducted by personnel certified in EPA Method 9, ensuring observations are legally defensible and technically accurate.
We offer both opacity evaluations (Method 9) and visual detection of intermittent emissions (Method 22) to meet different regulatory standards.
Opacity readings are typically required under NSPS Subpart OOO for crushers, screens, conveyors, and transfer points. We provide full documentation for your compliance files.
Our service includes field logs, weather records, site sketches, and photographic support—all packaged in a compliance-ready report.