In order to gain a comprehensive look at the emission factors during the operation of a source, Erthwrks provides comprehensive engineering tests for our clients. These tests can be used to improve our client’s understanding of an upset industrial process or to gain more insight before beginning a full compliance test. Erthwrks recommends a well-developed engineering test plan for specialty systems that have yet to undergo a full-compliance test. By utilizing Erthwrk’s superior senior staff, engineering tests might not be necessary, but they can provide valuable insight into the air emissions permit application process.