REDUCING CARBON EMISSIONS ON I-64 CAPACITY IMPROVEMENT PROJECT WITH THE USE OF FSB AND EMULSION ASPHALT MIXTURES

Integrity

Additionality is confirmed by the VVB using a common-practice test (validation report). The baseline is project-specific rather than standardized, and there is no evidence in the extracted record that the baseline was reassessed during the crediting period (PDD/monitoring as extracted). Leakage is a key weakness: the monitoring report states leakage is deemed negligible, but the validation report indicates leakage was not addressed, and no leakage deduction percentage is provided. No reversal events are reported, but a buffer pool contribution is not found in the extracted record (monitoring report).

Transparency

The monitoring report clearly states the monitoring period (2018-04-17 to 2021-09-13) and the crediting period (2018-04-17 to 2028-04-16), and identifies the VVB as Ruby Canyon Environmental Inc. However, the extracted record does not include total emission reductions claimed or verified, preventing cross-checks between monitoring, verification, and issuance. The usage monitoring approach is not found in the extracted record, limiting insight into how activity data were tracked (monitoring report as extracted).

Claim Safety

CORSIA eligibility is indicated, which can elevate greenwashing and reputational risk if buyers treat credits as high-integrity without independently confirming conservative quantification and public transparency. Over-crediting risk cannot be well bounded because the extracted record lacks both claimed and verified ER totals and does not state any leakage deduction. The contradiction on leakage (negligible vs not addressed) further increases uncertainty about whether all relevant emissions sources were conservatively handled (monitoring report vs validation report).

Documentation

The evidence set includes a PDD, monitoring report, validation report, and issuance record, and the extraction confidence is high, supporting a moderately strong documentation score. At the same time, the monitoring report notes multiple corrective action requests, non-material findings, additional document requests, and clarification requests, suggesting the assurance process identified notable documentation gaps that required follow-up. Some key quantitative fields (e.g., ER totals, leakage deduction, buffer pool) are not found in the extracted record, reducing completeness for independent assessment.

Overall

The main reliability issue is the explicit contradiction on leakage: the monitoring report (2023-12-22) deems leakage negligible, while the validation report (also 2023-12-22) indicates leakage was not addressed. Because validation is the foundational assessment of completeness of sources and sinks, I privilege the validation report’s indication that leakage was not addressed, and treat the monitoring statement as insufficient without a quantified, validated leakage assessment; this lowers integrity and claim-safety. Additionality is a relative strength (VVB-confirmed common-practice test), but missing ER totals and missing leakage deduction prevent a robust over-crediting check. Note: if documentation were to score below 3.0, transparency would be capped post-scoring; and if integrity were below 4.0, overall would be capped at 6.0 (gate rules).