Davidson County Landfill
#10of 115 in United States#277of 629 in Verra (VCS)
Audit Analysis
The Davidson County Landfill project is a VCS-registered landfill gas capture project using the CAR Landfill Protocol v6.0, verified by GHD Limited. Additionality is confirmed via a VVB-verified performance test and the baseline is measured and project-specific, but the most recent verification report does not address leakage (0% deduction with no justification), no buffer pool percentage is stated, and eleven corrective action requests—including a substantive error in the destruction efficiency applied to engine calculations—raise concerns about MRV robustness. The project delivered approximately 102% of its pro-rata ex-ante expectation for the 2024 monitoring period, indicating reasonable claim alignment.
Red Flags
- Eleven corrective action requests in the 2025 verification report, including an incorrect 96% destruction efficiency applied to engine emission reduction calculations, indicating substantive MRV calculation errors that were caught and corrected
- Leakage deduction of 0% with justification listed as 'not addressed' in the most recent verification report (2024-11-12), while an earlier verification report (2022-08-24) had quantified leakage—suggesting the project dropped its leakage quantification without explanation
- No buffer pool percentage stated in any available document, leaving permanence risk unquantified for a project with a 7-year crediting period
- FPIC status contradicts between the monitoring report (not conducted) and the most recent verification report (conducted), creating uncertainty about free, prior, and informed consent
Credit Vintages
| Issued | Retired | Available | ||
|---|---|---|---|---|
| 2015 | 36,159 | 36,159 | 0 | |
| 2016 | 54,493 | 0 | 54,493 | |
| 2017 | 43,711 | 0 | 43,711 | |
| 2018 | 51,590 | 49,388 | 2,202 | |
| 2019 | 55,049 | 55,049 | 0 | |
| 2020 | 48,570 | 48,570 | 0 | |
| 2021 | 49,291 | 0 | 49,291 | |
| 2022 | 60,886 | 0 | 60,886 | |
| 2023 | 58,596 | 0 | 58,596 | |
| 2024 | 51,238 | 0 | 51,238 | |
| Total | 509,583 | 189,166 | 320,417 |
Risk Indicators
VVB-confirmed performance test
No buffer pool stated; no reversals reported
0% deduction, not addressed in latest VR
Project-specific, measured, reassessed 2022
FPIC and grievance confirmed in 2025 VR but contradicted in
CORSIA explicitly not eligible; CCP status not stated
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