Attachment 4 - Stormwater Managment Plan

                                                                 APPLICATIONS
                                                                 •   Council storm drain retrofits
                                                                 •   Commercial / retail / residential
                                                                 •   Litter prone urban areas
                                                                 •   Scrap metal / solid waste / oil storage
                                                                 •   Part of treatment train
                                                                 •   Construction sediment / erosion




                                                                 BENEFITS
                                                                 •    an be modelled in MUSIC in conjunction with
                                                                     C
                                                                     bio-retention
                                                                 •   Low cost gross pollutant capture
                                                                 •   Quick & easy installation
                                                                 •   Simple maintenance
                                                                 •   At source capture
                                                                 •   Adjusts to custom pit sizes


    The SPEL Stormsack is specifically designed for the          The SPEL Stormsack was introduced to the Australian
    capture of gross pollutants: sediment, litter, and oil       market in 2012 and field testing is underway at several
    and grease. Ideally suited for storm drain retrofits, the    locations in South-east Queensland. Laboratory testing
    SPEL Stormsack’s unique design allows maintenance            has shown capture of 99.99% of gross pollutants up to
    to be performed using conventional vacuum suction            the bypass flow rate.* Further results will be provided
    equipment.                                                   as they become available.

    SPEL Stormsack filtration solutions are highly               Recommended minimum clearance from bottom of
    engineered water quality devices that are                    SPEL Stormsack to inside bottom of vault is 50mm.
    deployed directly in the stormwater system to                Typical frame adjustability range of 127mm in each
    capture contaminants close the surface for ease of           direction.
    maintenance. Easily retrofitted into new or existing
    structures, SPEL Stormsack filtration technology is a
    decentralized approach to stormwater treatment that
    essentially repurposes traditional site infrastructure and
    customizes it to meet specific site water quality goals.
    In this way, it satisfies important objectives of today’s
    LID (Low Impact Development) criteria.

    From an operations perspective, catch basins with
    SPEL Stormsack filters are also easier and quicker to
    clean out because pollutants are trapped just under the
    grate.




2        SPEL Stormsack