MSS Support Services

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GEM has developed a wide variety of vapor control solutions to assist customers with Maintenance Startup & Shutdown (MSS) permit compliance. Our comprehensive emission management program offers multiple customized options to meet individual facility needs.

GEM’s MSS Emission Control Services Include:

  • Permit Requirement Compliance Planning
  • Engineered Emissions Control Solutions
  • Mobile Vapor Combustion Units
  • Portable Liquid Scrubbers
  • Carbon Adsorption Vessels in all sizes
  • Mobile On-site Wastewater Treatment
  • On-going Monitoring
  • Comprehensive Agency Reporting & Support  


Our equipment is designed to control vapors from a variety of sources, including tanks, vessels, pipelines, vacuum trucks & air movers, sumps, frac tanks, and process units. 

 GEM’s Vapor Control Systems are designed to meet all TCEQ BACT requirements.


Our Offices

Corporate Headquarters 2525 Cherry Ave, Suite 105 Signal Hill, CA 90755 Tel – 562.595.7075 Fax – 562.595.7546
Gulf Coast 1434 Sens Rd. LaPorte, TX 77571 Tel – 281.471.0107 Fax – 281.471.0162
Southern California 1196 E. Willow St. Signal Hill, CA 90755 Tel – 562.436.2999 Fax – 562.495.1039
Corpus Christi, TX 117 Airport Road Corpus Christi, TX 78405 Tel – 361.883.1100 Fax – 361.883.1197
Northern California
3915 Teal Court
Benicia, CA 94510
Tel – 707.751.1710
Fax – 707.751.1711


GEM Mobile Treatment Services Toll Free: 1-877-GEM-MOBILE

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