Safe Water Programme – Nigeria – VPA 17

Audit Analysis

The Safe Water Programme in Nigeria is a Gold Standard project replacing water-boiling with safe drinking water supply, with VVB-confirmed additionality via a combined test. However, the project carries moderate risk due to a project-specific baseline, a thin 0% leakage justification, absence of a stated buffer pool, and multiple corrective actions related to sampling bias and operational-day calculations. The ERR figures across monitoring reports reflect different periods rather than true contradictions, but the FNRB discrepancy (96 vs 82.3) warrants attention.

Project Description

Red Flags

• ⚠Leakage deduction of 0% justified only as 'deemed negligible' without quantified analysis, despite realistic risk of households reverting to water boiling or purchasing bottled water
• ⚠Multiple corrective actions required regarding sampling methodology, chlorine tablet usage bias, and operational-day calculations across institution types
• ⚠FNRB value discrepancy: verification report (Oct 2022) uses 96 while the 2024 monitoring report uses 82.3, a 14% difference that affects ER calculations
• ⚠Total ERR verified figure not stated in the extracted record, limiting independent verification of claimed reductions

Credit Vintages