Source testing is a broad term that is defined as the measurement and characterization of emissions from stationary sources (point sources). Source testers primarily utilize test methods established by the United States Environmental Protection Agency (US EPA), unless other methods are mandated by applicable regulations. These methods employ precision instruments and advanced techniques to ensure unbiased measurement. Source testers identify the methods and procedures required to quantify the required emissions, conduct the emissions determination, and report the test results.
Rules can vary widely across the United States and the world. Many stationary source are required by an air management district, like the EPA, to conduct periodic checks of their emissions to show that the facility is operating within the terms of a Permit to Operate or state/federal rules. Source testing is also extremely beneficial for facilities looking to optimize processes and promote community engagement.
Requirements to conduct tests will depend on the required measurements. There are elements that are always required - the three P’s.
Sampling must occur at a sampling plane that meets the criteria of EPA Method 1, or a local equivalent. This generally means two or four sampling ports located at certain distances from flow disturbances. Necessary port dimensions will vary based on methodology. We can’t test if we can’t reach the ports, so safe access is a must!
Emissions are extracted from the source and directed to a suite of gas analyzers or through method-specific media. Test vehicles need to be parked reasonably close to the exhaust stack or sampling location to allow for gas analysis in a timely manner. At times, a mobile analyzer enclosure is the only way to accomplish this.
Test equipment and analyzers will not operate without proper power. Sampling equipment is not all the same, and power requirements vary by site.
A: We won’t know until you ask! Reach out to our team to see how we can be of service. Even if we do not perform tests in your area, our experienced team can point you in the right direction.
