Great Plains Organic Waste Sequestration

Audit Analysis

This Isometric biomass geological storage project has a functioning VVB process (350Solutions) that verified additionality and applied conservative deductions, but the April 2026 verification report surfaced 15 material findings and 15 corrective actions, including unresolved CO2 spike attribution, incomplete gas monitoring, and a gradual rise in TOC concentrations in displaced brine. The absence of a stated buffer pool, an unquantified leakage deduction, and a project-specific baseline with no recorded reassessment date leave significant permanence and over-crediting risk unaddressed for a carbon-removal credit.

Project Description

Red Flags

• ⚠Reversal events (gas detection, CO2 spikes) reported in the April 2026 verification report with source attribution (biogenic vs. legacy) still unresolved; the February 2026 report had recorded no reversal events, indicating the issue was missed or emerged later.
• ⚠15 material findings and 15 corrective actions in the April 2026 verification report, including incomplete methane speciation, recurring gas excursions without compositional sampling, and a gradual increase in TOC concentrations in displaced brine relative to the pre-injection baseline.
• ⚠No buffer pool percentage is stated in any available document for a geological-storage carbon-removal project, leaving permanence risk unmitigated.
• ⚠Leakage justification is described as 'quantified' in the extracted record, yet no actual deduction percentage is provided in any document.
• ⚠The LCA is present but not available on the Isometric Certify platform, and evidence for Feedstock 8 (rmv_1KHH624831S0AJGB) was missing at verification.

Credit Vintages

Issuance data not yet available — check back soon.