Yunshui Wastewater Treatment Plant Project in Guangdong Province

Integrity

The project’s additionality case is stronger than average because the issuance record says the VVB confirmed it through a combined test. However, integrity is weakened by the issuance report’s many material findings, including missing baseline demonstrations, incomplete investment-analysis support, and missing monitoring details. Leakage is treated as negligible with a 0% deduction, but the contradiction record shows an earlier document saying leakage was not addressed, so I privileged the later issuance record because it is more recent and more specific.

Transparency

Transparency is limited by the large difference between claimed and verified emission reductions, with 794,043 claimed versus 110,002 verified. The monitoring period and VVB are identified, but the extracted record does not state the usage monitoring method, and the low extraction-confidence flag suggests at least one key source was hard to read. The registry status is clear, but the overall reporting trail still looks incomplete.

Claim Safety

Claim safety is weakened by the very large claimed-versus-verified gap, which raises over-crediting concerns. The project is marked CORSIA-eligible, but CCP status is not stated, so dual-market risk is not fully resolved from the available record. The baseline is project-based rather than a more standardized jurisdictional approach, and the leakage justification is only summarized as negligible.

Documentation

Documentation quality is poor relative to what would be expected for a high-confidence issuance file. The record shows low extraction confidence, only one evidence document explicitly listed in the extracted set, and a long list of corrective actions and clarifications, including missing equipment, stakeholder, and calculation details. The crediting period is long and the monitoring period is recent, but the breadth of unresolved issues keeps the documentation score low.

Overall

Overall confidence is constrained by the low extraction quality and the many unresolved findings in the issuance record. I privileged the later issuance document over the earlier leakage note because it is more recent and appears to be the final verification/issuance source, but the contradiction still lowers reliability. The project is not a clear reject on integrity because additionality was VVB-confirmed, yet the large claimed-to-verified gap and extensive corrective actions keep the overall assessment cautious. The documentation score is below 3.0, so transparency would be capped further in a downstream rules engine, and the integrity score remains above 4.0 so the overall cap does not apply.