Source testing for the South Coast, since 1998.

• Refinery process heaters
• Utility & industrial boilers
• Combustion turbines & engines
• Permitted process vents
• Thermal oxidizers & flares
• Industrial ovens & kilns
• Direct-fired furnaces
• Any permitted combustion source

SCAQMD 1.1–1.2  — Traverse & velocity measurements
SCAQMD 2.1–2.3  — Stack gas flow rates
SCAQMD 3.1–4.1  — Stack gas density & moisture
SCAQMD 5.1–5.3  — Particulate matter (PM, PM₁₀)
SCAQMD 6.1        — Sulfuric acid & sulfur oxides
SCAQMD 25.1 & 25.3 — Organic compounds
SCAQMD 100.1      — Continuous NOx, CO, O₂, CO₂, SO₂
SCAQMD 207.1      — Ammonia emissions
And additional SCAQMD, CARB & EPA methods as required

Testing begins with a District-approved protocol tailored to your permit conditions. After testing, a complete source test report is prepared: field data, QA/QC records, laboratory results, and emission calculations. Independently reviewed by a qualified project manager, verified by a source test engineer, and signed by our Source Testing Manager — triple-checked before submission.

• Rule 1146 — Large boilers, heaters, steam generators
• Rule 1146.1 — Small industrial, commercial
• Rule 1146.2 — Large water heaters & boilers
• Rule 1147 — NOₓ from miscellaneous sources

We handle your permit work from start to finish. We review your permit to understand exactly what testing is required, consult with you on scope and timing, then coordinate and conduct all required source testing for your permitted equipment.

Source test reports delivered within 30 days of completed testing. Every report is structured for District review and includes all required documentation.

• Relative Accuracy Test Audit (RATA)
• Low Level Spike RATA (LLSR)
• High Level Spike RATA (HLSR)
• Low Level Calibration Error (LLCE)
• Cylinder Gas Audit (CGA)
• Relative Accuracy Audit (RAA)
• Linearity & drift checks
• Certification & re-certification
• Monitoring & Record Keeping

NOₓ · CO · SO₂ · O₂ · CO₂
Flow · THC · Opacity
Stratification tests
Bias adjustment calcs

We coordinate RATA windows around your operation — not the other way around. Whether you need daytime, evening, or weekend testing, we work with your schedule to minimize downtime while keeping your compliance clock on track.

• Formaldehyde, acetaldehyde (carbonyls)
• Dioxins / furans (PCDD/PCDF)
• Metals — Hg, Cr⁶⁺, Ni, As, Cd, Pb
• Polycyclic aromatic hydrocarbons (PAHs)
• Benzene, toluene, BTEX

CARB 421   — Volatile organic compounds
CARB 425   — Reactive organic gases
CARB 428   — Metals & trace elements
CARB 429   — PAHs
CARB 430   — Formaldehyde & carbonyls
CARB 436   — Hydrogen chloride
CARB 410A/B — Dioxins / furans
CARB 101A  — Particulate matter
CARB 12    — Trace metals
EPA TO-11A — Carbonyls
EPA TO-14  — VOCs (canister)
EPA TO-15  — VOCs (Summa)

All data is packaged and formatted to support your facility’s risk assessment and District reporting requirements. We coordinate directly with your environmental consultant so no data needs to be re-keyed or reformatted.