


Full-Service Source Testing
Stack flow, particulate, gaseous (NOₓ, CO, O₂, CO₂, SO₂), VOC and visible emissions, run by our own crews under SCAQMD and CARB approval. One team handles your program end to end.

Trusted Since 1995
A stack testing company that cares. Our crew scopes the program, runs the test, and delivers the report, for permit holders across California.

Sources We Test


Who We Are
Three decades of California source testing. A team that cares about getting it right the first time.
Where We Serve





Sully-Miller





Sully-Miller


Aggregates &
Materials
Crushers & screens
Dryers & kilns
Baghouses & scrubbers
Asphalt & concrete plants


Aggregates &
Materials
Crushers & screens
Dryers & kilns
Baghouses & scrubbers
Asphalt & concrete plants


Aggregates &
Materials
Crushers & screens
Dryers & kilns
Baghouses & scrubbers
Asphalt & concrete plants


Energy &
Refining
Boilers & heaters
Turbines & engines
Flares
Duct burners


Energy &
Refining
Boilers & heaters
Turbines & engines
Flares
Duct burners


Energy &
Refining
Boilers & heaters
Turbines & engines
Flares
Duct burners


Manufacturing &
Process
Ovens & finishing lines
Thermal oxidizers
Coating operations
Control devices


Manufacturing &
Process
Ovens & finishing lines
Thermal oxidizers
Coating operations
Control devices


Manufacturing &
Process
Ovens & finishing lines
Thermal oxidizers
Coating operations
Control devices


A Gauge Industrial Group Company
A Gauge Industrial Group Company
AirX is a Gauge Industrial Group company. Gauge equips industrial service firms with AI-native technology, helping teams like ours quote faster, schedule smarter, and deliver better service to every customer.
AirX is a Gauge Industrial Group company. Gauge equips industrial service firms with AI-native technology, helping teams like ours quote faster, schedule smarter, and deliver better service to every customer.
AirX is a Gauge Industrial Group company. Gauge equips industrial service firms with AI-native technology, helping teams like ours quote faster, schedule smarter, and deliver better service to every customer.
Visit Gauge Industrial
Use Gauge for Every Compliance Program
Procure the rest of your compliance program from the Gauge Industrial Group family, and manage all of it in one AI-powered customer portal.
Wastewater Compliance Industrial Hygiene Occupational Safety Hazardous MaterialsRequest a Quote
Request a Quote
Request a Quote
Call to scope your next compliance or engineering test program. We quote quickly and mobilize on your timeline.
Call to scope your next compliance or engineering test program. We quote quickly and mobilize on your timeline.
4082 N Southbank Rd Ste D, Oxnard, CA 93036
4082 N Southbank Rd Ste D, Oxnard, CA 93036

