ESS began regularly stack testing stationary reciprocating internal combustion engines (RICE) in 2010 due to the promulgation of 40 CFR 63 Subpart ZZZZ on March 3rd, 2010. Since then, ESS has conducted over 600 stack tests on RICE engines.
The EPA has three regulations that govern stationary engines:
ESS sets the standard for client support when it comes to stack testing. Our dedicated RICE mobile laboratory is equipped with backup analyzers and its own power source. We offer solutions that include wellness checks, temporary stack construction, operational data documentation and verification, and notification of compliance (NOC) preparation. ESS regularly conducts stack tests from Northern NY to Southern Florida in every state west of Colorado.
The U.S. EPA signed an amendment to the rule on February 28, 2022 that removes the stay of the formaldehyde limit for lean premix and diffusion flame gas-fired units that were constructed or reconstructed after January 14, 2003.