- Independent Environmental Audit (SSD 8445) 2023
- Independent Environmental Audit 2023
- Response Letter – 2023 Audit
- Development Consent SSD 8445 Independent Audit Report 2022
- Response letter – 2022 Audit
- Actions update letter – 2022 Audit
- Independent Environmental Audit 2020
- Response letter – 2020 Audit
- Development Consent Compliance Audit Report 2017
- Response letter – 2017 Audit