Yunshui Wastewater Treatment Plant Project in Guangdong Province

Audit Analysis

A 16-plant wastewater treatment project in Guangdong Province with VVB-confirmed additionality and a reasonable leakage justification, but undermined by a project-specific baseline, absence of a buffer pool, and a heavy load of 32 corrective action requests (all closed) that reveal significant gaps in the original documentation. The verified emissions reductions for the first monitoring period represent roughly 72% of the pro-rata lifetime expectation, indicating conservative delivery. Low extraction confidence and contradictory statements across documents reduce overall reliability.

Project Description

Red Flags

• ⚠32 Corrective Action Requests and 10 Clarification Requests were raised during verification, covering incomplete regulatory compliance evidence for all 16 plants, incorrect common-practice analysis, use of outdated IPCC guidelines (2006 instead of 2019 Refinement), and missing calculation details — all closed but indicative of weak initial documentation
• ⚠Minimum extraction confidence is rated low, meaning at least one key document was poorly readable, reducing confidence in the completeness of the extracted record
• ⚠Benefit-sharing description is contradictory: the PDD (Feb 2023) states it is described, while the validation report (Mar 2023) states it is not — the more recent and authoritative validation report is privileged

Credit Vintages Exhausted