Trusted Source for Environmental Testing Since 1979
From emissions testing to landfill well monitoring to fenceline monitoring: ESS has your environmental testing needs covered
Partners in Industrial Environmental Maintenance
ESS’ environmental maintenance contracts can help your facility with anything from CEMS maintenance to leak checks and tuning
Global Solution Provider
With offices across the globe, our multilingual staff is ready to assist

Our Services

ESS is a full-service environmental consulting agency specializing in environmental air testing and control since 1979. With offices across the globe, our multilingual staff can help you tackle even your most challenging environmental concerns. Our international insights give ESS the industry edge, allowing us to adapt to a changing industrial landscape.

Air Quality Measurement & Engineering

  • Emissions Testing / Stack Testing
  • Environmental Air Testing
  • Ambient Air Monitoring
  • Indoor Air & Industrial Hygiene
  • Remediation
  • Forensic Analysis

Industrial Maintenance & Tuning

  • CEMS/CAMS Integration & Maintenance
  • Boiler Tuning
  • Part 60 & Part 75 Audits
  • Opacity Audits
  • LDAR

Environmental Program Reporting

  • ERT & CEDRI Reporting 
  • e-GGRT
  • CEMS Monitoring Plan Review 
  • Third-Party Stack Test Report Review

Industry News

ESS: Experts on Stack Testing for RICE Engines

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.

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Industries Served