40 CFR Part 60, Table 2 — Alternative Technology Periodic Screening Frequency at Well Sites and Centralized Production Facilities Subject to AVO Inspections and/or Semiannual OGI or EPA Method 21 Monitoring
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| Minimum screening frequency | Minimum detection threshold of screening technology *(kg/hr) |
|---|---|
| Semiannual | ≤1 |
| Triannual | ≤2 |
| Triannual + Annual OGI | ≤10 |
| Quarterly | ≤5 |
| Quarterly + Annual OGI | ≤15 |
| Bimonthly | ≤15 |
* Based on a probability of detection of 90%