ESS: Experts on RICE Unit Stack Testing

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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:

  • 40 CFR Part 63 Subpart ZZZZ: National Emission Standards for Hazardous Air Pollutants (NESHAP) applies to new and existing stationary compression ignition and spark ignition engines
  • 40 CFR Part 60 Subpart IIII: New Source Performance Standards (NSPS) for Stationary Compression Ignition Internal Combustion Engines
  • 40 CFR Part 60 Subpart JJJJ: New Source Performance Standards (NSPS) for Stationary Spark Ignition Internal Combustion 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.

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