Deployment Storage reports 17.09 GB for clavametrics, but the project currently has 11 deployments, which would mean 1.5 GB each. The deployed site is a static site: 16 MB of files, and the build installs ~21 MB of dependencies.
I deleted 21 of its 32 deployments via the REST API (DELETE /v13/deployments/{id}, all returned success). The figure moved from 17.55 GB to 17.09 GB — 2.6%.
The metric is not stale: in that same refresh, website-jrob went from 1.31 GB to 0 B and clavametrics-survey from 433 kB to 0 B, so deletions elsewhere are reflected immediately.
This looks like orphaned storage from already-deleted deployments. Could you purge it? The team is currently over the 10 GB limit because of it.