| Reference Number | Full Name | Occupation | Disciplines | Company | Audit Expiry Date | Status |
|---|---|---|---|---|---|---|
| 1154 | David Harrison | Lead Driller | CP | PB Drilling | 2027-05-18 | Audited |
| 1013 | David Henderson | Lead Driller | RTY | Structural Soils | 2027-04-19 | Audited |
| 0852 | David Minett | Lead Driller | RTY | Geotechnical Engineering | 2027-02-03 | Audited |
| 0528 | David Nayles | Lead Driller | RTY | BAM Ritchies | 2027-04-03 | Audited |
| 1093 | David Papworth | Lead Driller | RTY | ADS Drilling | 2026-06-17 | Audit Expired |
| 1019 | Dean Shirra | Support Operative | BAM Ritchies | 2026-11-25 | Audited | |
| 0575 | Derek Johnstone | Lead Driller | SON | Raeburn Drilling & Geotechnical T/A Igne | 2027-01-26 | Audited |
| 1131 | Des Downey | Lead Driller | RTY | Causeway Geotech | 2026-12-02 | Audited |
| 1085 | Donald Brown | Lead Driller | RTY | Raeburn Drilling & Geotechnical T/A Igne | 2026-06-24 | Audit Expired |
| 1133 | Douglas Millar | Support Operative | Raeburn Drilling & Geotechnical T/A Igne | 2027-01-29 | Audited | |
| 0517 | Eddie Bacon | Lead Driller | RTY | Allied Exploration & Geotechnics T/A Igne | 2026-05-19 | Audit Expired |
| 1152 | Edward Alderson | Support Operative | Arcadis UK | 2027-02-03 | Audited |
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