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EP 4 816 776 A1

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(43) Date of publication: 07.10.2026 Bulletin 2026/41 (21) Application number: 24895237.6 (22) Date of filing: 02.12.2024

(51) International Patent Classification (IPC):  G01F 23/284(2006.01) E03F 5/02(2006.01) G01S 13/32(2006.01) G01S 13/88(2006.01) E02D 29/12(2006.01) G01S 13/08(2006.01) G01S 13/58(2006.01) (52) Cooperative Patent Classification (CPC): E03F 5/02; E03F 2201/20; G01S 7/038; G01F 23/284; G01F 23/80; G01S 13/88; G01S 7/027; G01S 7/03; G01S 7/414; G01S 7/415; G01S 7/2923; G01S 13/36; G01S 7/2886 (86) International application number: PCT/AU2024/051292 (87) International publication number: WO 2025/111668 (05.06.2025 Gazette 2025/23)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: GE KH MA MD TN (30) Priority: 01.12.2023 AU 2023274214 (71) Applicant: South East Water Corporation Frankston VIC 3199 (AU)	(72) Inventors: HAMILTON, Gregory Frankston, Victoria 3199 (AU) WILLIAMS, Jason Frankston, Victoria 3199 (AU) (74) Representative: Gill Jennings & Every LLP  The Broadgate Tower 20 Primrose Street London EC2A 2ES London EC2A 2ES (GB)