When a site operates under a specific permit — such as a corrective action permit or a remediation consent order — the permitId on Site records the external permit number or ID. This lets your team cross-reference piper data with the permitting authority's records without duplicating permit data. It is a free-form string matching the identifier used by the issuing agency or the Stratum Permits module.
Technical section
Data model, API, and internals — visible to developers.