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Tittesworth Water becomes largest reservoir site to be awarded nationally significant Biodiversity Benchmark accreditation

Reported by Insideecology ·Watermagazine
Jul 15, 2026· 2 min read
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Key Takeaways
  • • Tittesworth Water has been awarded The Wildlife Trusts' Biodiversity Benchmark accreditation, becoming the largest reservoir site to receive this nationally significant certification.
  • • The Biodiversity Benchmark is the only standard that certifies business site management for wildlife and complements ISO 14001 environmental management systems.
  • • As of the current certification cycle, 52 sites across 20 organizations have achieved Biodiversity Benchmark status, collectively encompassing 7,700 hectares of certified land under active biodiversity management protocols.
  • • The certification recognizes excellence in designing and implementing management systems that achieve continual biodiversity enhancement and protection, positioning landowning businesses as positive forces for nature recovery.
  • • Tittesworth Water's designation as the largest reservoir site to achieve this accreditation represents a strategic milestone for water utility companies in demonstrating commitment to biodiversity stewardship alongside core water supply operations.
Summary
Tittesworth Water has achieved The Wildlife Trusts' Biodiversity Benchmark accreditation, establishing itself as the largest reservoir site to receive this nationally significant certification. The award recognizes the organization's excellence in land and wildlife management practices across its water supply operations.

The Biodiversity Benchmark is administered by The Wildlife Trusts and serves as the sole standard certifying business site management for wildlife in the UK. The certification framework is specifically designed to complement ISO 14001 environmental management systems and rigorously tests the design and implementation of an organization's management systems to achieve continual biodiversity enhancement and protection on certified sites.

The current scope of the Biodiversity Benchmark program includes 52 awarded sites managed by 20 organizations, collectively representing 7,700 hectares of land under certified biodiversity management. This portfolio spans multiple sectors, including water utilities (SES Water has achieved certification at multiple sites including Bough Beech in Kent and Fetcham Springs), extractive industries (Holcim UK's Glensanda Estate and Granite Quarry), financial services (Nationwide became the first bank to receive the standard), energy infrastructure (Cadent's Tatling End became the first UK gas distribution network site to achieve accreditation), and airport operations (Heathrow has maintained certification for 19 consecutive years).

Tittesworth Water's achievement as the largest reservoir site receiving this accreditation underscores the increasing recognition within the water utility sector of biodiversity stewardship as a core operational responsibility. The certification positions the organization within a cohort of landowning businesses demonstrating measurable commitment to nature recovery and ecosystem protection alongside their primary commercial operations. The Biodiversity Benchmark framework empowers such organizations to quantify and certify their positive environmental impact, complementing broader ESG reporting and stakeholder accountability frameworks increasingly expected by institutional investors and regulatory bodies.

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Insideecology Tittesworth Water becomes largest reservoir site to be awarded nationally significant Biodiversity Benchmark accreditation Watermagazine Tittesworth Water becomes largest reservoir site to be awarded nationally significant Biodiversity Benchmark accreditation