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Visible Emission Evaluation (VEE) Services

Opacity observations per EPA Method 9 and Method 22 to demonstrate compliance with air permits and NSPS Subpart OOO.

We make VEEs simple and defensible: plan the read → observe under correct geometry → document conditions → deliver an audit-ready package.

Method 9 / 22 Execution

Certified observations with proper setup (sun angle, wind, distance, and unit operating condition) and clean field sheets.

  • Method 9: 5% opacity increments over set intervals
  • Method 22: intermittent visible emissions (presence/absence)
  • Unit-focused: crusher/screen/conveyor/transfer point reads
  • Safety + access: vantage verification and site coordination
Compliance Package + Proof

Deliverables aligned to permit conditions and Subpart OOO expectations, packaged for inspection defense and internal close-out.

  • Report packet: field sheets, weather, sketches, photos
  • Condition mapping: results vs permit/standard
  • Corrective actions: if excursions observed
  • Retention: file-ready binder (PDF + optional portal storage)
Finish-line workflow

Plan → Observe → Document → Prove

Send the unit list, operating schedule, and permit conditions (opacity limits / OOO applicability). We’ll respond with a tight scope + schedule.
Schedule a Reading Deadline Triage
1Plan
Units, vantage points, limits, and operating conditions.
2Observe
Correct geometry, timing, and method selection (9 vs 22).
3Document
Weather, sketches, photos, and field sheets with QA review.
4Prove
Audit-ready report packet and retention-ready file set.
Tip For best defensibility, schedule readings during representative operating conditions (startup/steady-state/burden changes).
Certified Observers

Evaluations conducted by EPA Method 9 certified personnel for defensible, technically accurate observations.

Method 9 & Method 22

Opacity (Method 9) and intermittent emissions (Method 22) services to satisfy varying regulatory standards.

Subpart OOO Compliance

Support for crushers, screens, conveyors, and transfer points—complete documentation for compliance files.

Observation & Documentation

Field logs, weather records, site sketches, and photos packaged in an audit-ready report.

Need State Requirements?

Get a quick summary of common state-level rules we encounter.

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