Xuancheng Composting Project Phase I

Audit Analysis

The Xuancheng Composting Project is a VCS-registered manure composting project in China with VVB-confirmed additionality and a verified ERR that closely matches the claimed figure for the monitoring period. However, the project's documentation history is marred by an unusually high volume of corrective actions (23+ CARs, 10+ CLs) covering fundamental calculation errors, misclassified parameters, and incomplete monitoring plans, all of which were ultimately resolved. The project-specific modeled baseline, absence of a stated buffer pool, and a public comment flagging potential overestimation from dry/wet-basis confusion temper confidence in the underlying quantification.

Project Description

Red Flags

• ⚠23+ Corrective Action Requests and 10+ Clarification Requests were raised across validation and verification cycles, including errors in ex-ante GHG calculations, IRR/additionality calculations, GWP values (AR5 vs AR4), and misclassified ex-ante/ex-post parameters — all closed but indicating weak initial documentation quality
• ⚠A public comment flagged potential overestimation of emission reductions due to confusion between dry and wet basis manure quantities; the project recalculated using dry basis for baseline and wet basis for project emissions
• ⚠Buffer pool percentage is not stated in any available document, and reversal events are listed as 'not addressed' in the extracted record, leaving permanence risk unquantified
• ⚠Leakage deduction is 0% with a 'quantified' justification, but the specific quantification methodology and magnitude are not visible in the extracted data
• ⚠Minimum extraction confidence is rated 'low', meaning at least one key document was poorly readable, reducing reliability of the extracted facts

Credit Vintages