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GS Clean Drinking Water Sierra Leone Vintage 2021, 2022, 2023 Registry: Certified & crediting Documentazione completa General Methodology v2.0

VPA 211 Sierra Leone Safe Water

GS-7476 ↗

5.0 / 10
Integrity
6.2
Transparency
5.0
Claim Safety
4.5
Documentation
3.0

Score Breakdown

Integrity

verified additionality confirmed by the VVB in the verification report (verification report, 2021-02-05)

missing reversal treatment not addressed consistently — monitoring report states reversal events as not addressed while a later record suggests none reported (monitoring report 2021-03-26; unknown doc 2024-12-13)

Transparency

verified monitoring period and VVB are documented (monitoring report 2023–2024; verification report 2021-02-05)

missing critical MRV numbers are missing from the extracted record (total emissions claimed/verified and grid emission factor not found in available documents)

Claim Safety

verified baseline was reassessed recently (baseline reassessed in 2024), and the project uses national-default FNRB documented in a monitoring report

missing project is marked CORSIA-eligible and there are contradictory usage and FNRB values (monitoring report vs earlier PDD), increasing over-crediting/double-claim risk

Documentation

verified many documents listed and 21 documents used according to the extracted record

missing minimum extraction confidence is low and several fields are null or not stated (min_extraction_confidence = low; key fields missing)

Detailed Analysis

Integrity

Additionality is confirmed by the VVB in the verification report (2021-02-05) and the baseline was last reassessed in 2024, which supports the project’s baseline validity. Leakage is treated with a 0% deduction but is reported as 'quantified' (monitoring report), which is acceptable if the quantification is robust; however, the lack of buffer pool data and the unclear treatment of reversals reduce confidence. Material findings (closed CLs and CARs) were raised and closed according to the verification report, and no corrective actions remain outstanding.

Transparency

The project names its VVB (Earthood Services Limited) and provides a monitoring period (2023–01–01 to 2024–12–31), but key MRV outputs such as total emissions claimed/verified, grid emission factor, and buffer pool percentage are not present in the extracted record. The minimum extraction confidence is low, which implies some source documents were poorly readable and lowers the effective transparency score.

Claim Safety

There is an elevated claim risk because the project is listed as CORSIA-eligible (merged facts field) and CCP status is not mentioned, creating potential for dual use of credits. Contradictions exist in usage rates (100% vs 81.73) and in FNRB values (0.95 vs 0.85) between documents; I privileged the values from the monitoring and verification reports where they are explicitly stated because those are formal, project-level measurement documents (monitoring report 2021-03-26; verification report 2021-02-05). These inconsistencies increase the risk of over-crediting until reconciled.

Documentation

Although 21 documents are listed in the extraction and standard documents (PDD, monitoring report, verification report, validation report) are present, the extraction confidence is low and several fields are null or 'not stated in available documents' (e.g., total ERR claimed/verified, grid EF, buffer pool). The verification report is dated 2021-02-05 and monitoring records include 2021 and 2023–2024 periods, but the low extraction confidence and missing quantitative records justify a conservative documentation score.

Overall

I privileged monitoring-report and verification-report values where contradictions exist because they are the primary project measurement and assurance documents and are specific (monitoring report 2021-03-26; verification report 2021-02-05). Specific contradictions: (1) usage rate — monitoring report records 100% (2021-03-26) vs an earlier 81.73% (2020-10-14); I privilege the monitoring report 100% value but note the inconsistency reduces reliability. (2) usage rate assumed — verification report asserts 100% (2021-02-05) vs 0.85 in the PDD (2019-10-29); I privilege the verification report as the later formal check. (3) reversal events — monitoring report marks as not addressed (2021-03-26) while a later unknown record states none reported (2024-12-13); I take the conservative view that reversals are not clearly addressed. (4) FNRB — monitoring report gives 0.95 (2021-03-26) vs 0.85 in an unknown 2023 record; I privilege the monitoring report but flag the discrepancy. (5) crediting period — monitoring report/PDD indicate 2019–2027 while an unknown later record claims a different future period; I privilege the project's documented crediting period in primary project documents. These contradictions and the low extraction confidence reduce the overall reliability, yielding an overall score of 5.0.

Audit Analysis

The project shows several positive integrity features (VVB-confirmed additionality, a recent baseline reassessment) but also important gaps: reversal treatment is unclear, key emission figures are missing, and extraction confidence is low. Claim risk is elevated because the project is CORSIA-eligible and there are contradictions in usage and baseline adjustment factors.

Project Description

Sierra Leone faces major challenges in safe water provision, particularly in rural areas where over 50% of the population lacks access to an improved water source. Even where improved sources such as boreholes are available, it is estimated that approximately 95% of sources are contaminated by diseases linked to poor sanitation such as E-coli. As in other parts of sub-Saharan Africa, the lack of access to safe water or to any other means of purification means that rural households are forced to boil water in order to purify it, thereby causing significant damage to ecosystems and releasing carbon dioxide into the atmosphere. The project team is working closely with CODE-SL, a local organisation in Sierra Leone, to rehabilitate and maintain boreholes and to ensure that good sanitation practices are followed in communities. The sanitation element is crucial, as it is crucial to keep the area around the borehole free of contamination to ensure that safe and clean water continues to flow for the community. The project is initially being implemented in Kono district in the East of Sierra Leone and will hopefully expand to other districts in the coming years.

Red Flags

  • CORSIA eligibility disclosed — potential double-claiming risk
  • Key emissions figures (total ERR claimed/verified, grid EF, buffer pool) not found in extracted records

Credit Vintages

Issued Retired Available
2020
6,420 6,420 0
2021
7,141 7,135 6
2022
6,614 2,226 4,388
2023
2,640 0 2,640
Total 22,815 15,781 7,034

Cosa migliorerebbe questo punteggio

  • Publish or extract the verified totals for emissions claimed and emissions verified, plus grid emission factor and buffer pool percentage.
  • Resolve and document contradictions in usage rates and FNRB in a consolidated monitoring/verification statement, and explicitly document reversal risk treatment.

Questi suggerimenti indicano quali prove pubbliche aggiuntive potrebbero migliorare il livello di confidenza di questa valutazione. Non garantiscono un punteggio futuro più alto.

Risk Indicators

Additionality

VVB-confirmed

Permanence

reversal unclear

Leakage

quantified (0% deduction)

Baseline

project baseline, reassessed

Safeguards

FPIC & grievance present

Double-claim

CORSIA-eligible

Where to buy

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Analysis Provenance Scored 2026-04-23 General Methodology v2.0 Documentazione completa

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