SERVICE 04Monitoring and safetySHEET 04 / 05

Every tonne, followed.

Ensuring the permanent containment of stored CO₂ is the cornerstone of our mission. Without it, everything else we do is decoration. Surveillance is comprehensive, customized to each storage site, and the results are reported.

A monitoring station with sensors and a solar panel standing in a meadow beside a forest — Fig. 17 · Surface monitoring stationReference imagery

Straight down aerial view of a small rectangular gravel well pad in dense forest, a single wellhead and two skid units on it, one narrow access track — Fig. 18 · Storage site, surface footprint, from aboveReference imagery

What is watched

01

The storage complex

Pressure and the position of the plume, so we know where the CO₂ is and that it is behaving as modelled.

02

Above the seal

A separate well completed in a permeable bed above the caprock. Nothing should ever arrive there, and that is the point.

03

The surface

Soil gas, groundwater and atmosphere, so a claim of containment can be checked from the outside.

04

The wells

Integrity of every well, because a well is the only man made path through a seal that took millions of years to form.

An industrial plant with concrete silos seen across a frosted field at the edge of a forest on a cold clear morning — Fig. 19 · The same site, watched through every seasonReference imagery

Measured in centuries, not seasons.

The obligation does not end when injection does. Monitoring continues long after the last tonne goes in, and the record is what lets a regulator, an auditor and a neighbour all reach the same conclusion.

NEXTThe rest of what we do04 SHEETS

ScreeningScreening ExplorationExploration StorageStorage as a service Negative emissionsNegative emissions

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