20230025_RECOR_MCU Engineers Letter_20.12.24

                                                                                             Verification Certificate – SQIDEP VC
                                                                                             Reference Number: SA-2019/009/VC
                                 the cleaning of the Storm Sack and filter cartridge at regular intervals;
                            • The life expectancy of the device and the media is unknown. In discussions with the
                                 manufacturer the testing is consistent to at least the 6 year mark. It is suggested that
                                 an estimated lifespan of both media and the whole device be written into any technical
                                 guidelines as the filter material will deteriorate over time;
                            • The acceptance of these results is reliant on the installation being similar to that shown
                                 in this analysis. Alternative installations may result in different outcomes;
                            • Designs & Installations of the SPELBasin® are in accordance with the SPEL Stormwater
                                 SPELBasin® Technical Guidelines; and
                            • If the media is observed to not fully drain down to its lowest level within 2 hours
                                 following an event, investigate the media permeability, and if required replace media.
   Independent
   Reviewers             Mr Chris Beardshaw, Afflux Consulting

                         Mr Mark Liebman, Sustainability Workshop

   Accepted by
   Governance            24/9/2020
   Panel
   Accepted by
   Stormwater            25/9/2020
   Australia
   Board




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