Ecoparque Maceió Landfill Gas Project
GS-4405 ↗ · current registry ID: GS12199
#39of 64 in Methane#61of 104 in Brazil#329of 426 in Gold Standard (GS)#36of 53 in ACM0001
Audit Analysis
The Ecoparque Maceió Landfill Gas Project has a verified additionality case and recent baseline reassessment, but is undermined by a critical internal contradiction in reported emission reductions (263,040 vs 546,706 tCO₂e within the same monitoring report), a 0% leakage deduction lacking a clear justification in the verification report, and a significant number of corrective action requests (5–13 CARs) raised by the VVB. The project's data reliability is materially weakened by multiple cross-document inconsistencies.
Red Flags
- The same monitoring report (Oct 2025) contains two different total ERR figures — 263,040 and 546,706 tCO₂e — a 2× discrepancy that cannot be reconciled from the available record
- The verification report (Feb 2026) does not address the leakage justification, while the monitoring report (Oct 2025) states leakage was 'deemed negligible'; the 0% deduction therefore lacks a verified, documented basis
- The VVB raised between 5 and 13 Corrective Action Requests depending on the document, indicating unresolved compliance or data-quality issues at the time of verification
- No buffer pool percentage is stated in any available document, leaving permanence risk unquantified despite the project being a gas-capture (avoidance) activity
Credit Vintages
| Issued | Retired | Available | ||
|---|---|---|---|---|
| 2023 | 3,229 | 0 | 3,229 | |
| 2024 | 219,062 | 0 | 219,062 | |
| 2025 | 40,749 | 0 | 40,749 | |
| Total | 263,040 | 0 | 263,040 |
Risk Indicators
VVB-verified combined test; capture not legally required
Avoidance project but no buffer pool stated; reversal not ex
0% deduction; justification contradictory between VR and MR
Project-specific baseline; measured per MR but contradicted
FPIC conducted; grievance mechanism present; safeguards docu
CORSIA and CCP status not stated in available documents
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