Three stainless stacks with drifting plumes at sunset
California’s Source
Testing Leader
AIRX
Services

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.

Stack Flow & VelocitySCAQMD 1, 2, 3, 4, CARB 1–4
ParticulateSCAQMD 5.1, 5.2, CARB 5, EPA 201A/202
Gaseous EmissionsSCAQMD 100.1, CARB 100, EPA 205
VOC & SulfurSCAQMD 25.1, 25.3, 6.1
Visible EmissionsCARB VEE
Compliance ReportingDistrict format
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AirX test vans
AirX Testing Services

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.

Industries

Sources We Test

Crushers, dryers & baghouses
Heaters, boilers & flares
Turbines, engines & duct burners
Ovens & coating lines

Who We Are

Three decades of California source testing. A team that cares about getting it right the first time.

Where We Serve

Ventura County: Oxnard, Ventura, Camarillo, Santa Paula
Southern California: Los Angeles, Orange County, San Diego
Central Valley: Fresno, Bakersfield
Bay Area: San Francisco, San Jose, Salinas
  • Vulcan Materials
    Granite Construction
    SGS
    SCS Engineers
    Bimbo Bakeries

    Sully-Miller

    Vulcan Materials
    Granite Construction
    SGS
    SCS Engineers
    Bimbo Bakeries

    Sully-Miller

Aggregates & Materials

Aggregates &
Materials

Crushers & screens

Dryers & kilns

Baghouses & scrubbers

Asphalt & concrete plants

Aggregates & Materials

Aggregates &
Materials

Crushers & screens

Dryers & kilns

Baghouses & scrubbers

Asphalt & concrete plants

Aggregates & Materials

Aggregates &
Materials

Crushers & screens

Dryers & kilns

Baghouses & scrubbers

Asphalt & concrete plants

Energy & Refining

Energy &
Refining

Boilers & heaters

Turbines & engines

Flares

Duct burners

Energy & Refining

Energy &
Refining

Boilers & heaters

Turbines & engines

Flares

Duct burners

Energy & Refining

Energy &
Refining

Boilers & heaters

Turbines & engines

Flares

Duct burners

Manufacturing & Process

Manufacturing &
Process

Ovens & finishing lines

Thermal oxidizers

Coating operations

Control devices

Manufacturing & Process

Manufacturing &
Process

Ovens & finishing lines

Thermal oxidizers

Coating operations

Control devices

Manufacturing & Process

Manufacturing &
Process

Ovens & finishing lines

Thermal oxidizers

Coating operations

Control devices

Gauge Industrial Group facility

A Gauge Industrial Group Company

A Gauge Industrial Group Company

Gauge Industrial Group

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
Wastewater Compliance
Permit sampling, discharge monitoring, pretreatment support, and SWPPP stormwater programs.
Learn more

Request 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

Have a compliance deadline or a permit test coming up? Send the details and we’ll get you a quote fast.

Permit (optional · PDF or photo, up to 10 MB)
Upload your permit
Drop it here or click to browse. Helps us scope the right methods.