BRUSQUE LANDFILL GAS PROJECT
#15of 64 in Methane#17of 104 in Brazil#240of 629 in Verra (VCS)#14of 53 in ACM0001
Audit Analysis
The Brusque Landfill Gas Project is a VCS-registered LFG project with confirmed additionality and no reported reversals, but it carries notable data-quality concerns (multiple calibration delays exceeding 270 days, a 26-day data exclusion, and a data-collection system failure) and a 0% leakage deduction with no stated justification. The project-specific baseline and the absence of a buffer pool percentage in the available records add moderate risk. Overall, the project is functional and verified but exhibits operational and methodological weaknesses that temper confidence in the credit volume.
Red Flags
- 0% leakage deduction with justification recorded as 'not addressed' in the 2025 verification report — unusual for a landfill gas project where incomplete capture or incomplete combustion is an inherent risk
- Calibration delays of 279 days (LFG temperature sensor) and 287 days (flare thermocouple) during the 2024 monitoring period, corrected only with small adjustment factors (−1% and ±0.5 °C), raising questions about the accuracy of the underlying measurements
- 26-day period (May–Jun 2023) excluded from verification due to a data-gathering malfunction, reducing the effective monitoring coverage
- Contradiction between the 2025 verification report (leakage 'not addressed') and the 2024 verification report (leakage 'quantified') suggests a regression in methodological rigour between reporting cycles
Credit Vintages
| Issued | Retired | Available | ||
|---|---|---|---|---|
| 2022 | 28,971 | 7,158 | 21,813 | |
| 2023 | 94,584 | 52,849 | 41,735 | |
| 2024 | 65,023 | 52,900 | 12,123 | |
| Total | 188,578 | 112,907 | 75,671 |
Risk Indicators
Combined test confirmed by VVB
No reversals but buffer pool not stated
0% deduction, justification not addressed
Project-specific, not yet due for reassessment
FPIC and grievance confirmed but contradicted in monitoring
CORSIA and CCP status not stated
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