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ISOCarbon RemovalGeneral Methodologyv2.1

Ontario Avenue Bio-Oil Sequestration

ISO-1JQEQKCF91S0 ↗

#9of 52 in ISO

4.8/ 10
Integrity
5.0
Transparency
4.8
Claim Safety
4.0
Documentation
5.8

Audit Analysis

The Ontario Avenue Bio-Oil Sequestration project is a carbon removal project under the Isometric standard with VVB-confirmed additionality and independently verified geological storage, but it is undermined by a four-fold overstatement in the project's own monitoring report (240.19 tCO2e claimed vs. 60.43 tCO2e verified), a complete absence of leakage treatment for a subsurface storage project, and a monitoring exemption that weakens the permanence assurance. The project shows reasonable documentation and recent verification activity, yet key safeguards and permanence safeguards remain unaddressed.

Red Flags

  • Project's monitoring report claimed 240.19 tCO2e while the VVB verified only 60.43 tCO2e — a ~4× overstatement traced to a water-deduction calculation error in bio-oil mass
  • Leakage is entirely unaddressed (no deduction, no justification) in a geological storage project where subsurface migration is a primary risk
  • Exemption from continuous methane monitoring granted due to a shared brine tank with unrelated gas storage caverns, relying on Isometric's risk assessment rather than independent continuous data
  • No buffer pool or additional permanence safeguard is documented despite a 1,000-year permanence claim

Credit Vintages

Issuance data not yet available — check back soon.

Risk Indicators

Additionality

VVB-confirmed

Permanence

1,000-yr claim, no buffer pool, monitoring exemption

Leakage

Not addressed in geological storage project

Baseline

Project-specific, no reassessment date

Safeguards

Mentioned but FPIC, grievance, benefit-sharing not documented

Double-claim

CORSIA and CCP status not stated

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Analysis ProvenanceScored2026-09-02General Methodology v2.1

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