| Reference Number | Full Name | Occupation | Disciplines | Company | Audit Expiry Date | Status |
|---|---|---|---|---|---|---|
| 1114 | Daniel Rae | Support Operative | Marshall Drilling | 2026-08-18 | Audited | |
| 1073 | Daniel Scrimshaw | Lead Driller | DS | Soil Engineering Geoservices | 2025-05-13 | Audit Expired |
| 1068 | Daniels Ziraks | Support Operative | Geotechnical Engineering | 2026-04-02 | Audited | |
| 0991 | Danny Davis | Lead Driller | RTY | Marshall Drilling | 2026-06-02 | Audited |
| 1064 | Danny Walsh | Lead Driller | RTY | ADS Drilling | 2026-04-01 | Audited |
| 0993 | Danny Williams | Lead Driller | RTY | CC Ground Investigations | 2025-05-13 | Audit Expired |
| 834 | Darren Jones | Lead Driller | RTY | Geotechnical Engineering | 2025-06-26 | Audit Expired |
| 1056 | David Cheetham | Lead Driller | CP | Endeavour Drilling | 2026-02-27 | Audited |
| 1001 | David Dorman | Support Operative | GeoSonic Drilling | 2025-07-10 | Audit Expired | |
| 1062 | David Egginton | Lead Driller | RTY | Soil Engineering Geoservices | 2026-03-11 | Audited |
| 1070 | David Guy | Lead Driller | RTY | Jackson Drilling | 2026-03-23 | Audited |
| 1013 | David Henderson | Lead Driller | RTY | Structural Soils | 2025-10-28 | Audited |
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