2017-01-16 General Committee Meeting Notes

RECOMMENDATIONS ONLY – NOT THE FINAL DECISION OF COUNCIL
GENERAL COMMITTEE MEETING                                                    16 JANUARY 2017


              Stormwater Quality Improvement Device (SQUID)
        64.   All stormwater from UFAs must be captured and drained to the approved SQUID.
        65.   The SQUID (treatment tank/ Stormwater 360 pods filter cartridges & detention
              tank) intended to be installed as part of the stormwater drainage system for the
              UFA, must incorporate the following design measures as a minimum:
              a.   steel bars or trash gates with at least 20mm spacing;
              b.   filtration devices such as sand filters or gross pollutant traps capable of
                   removing litter (diameter greater than 5mm) and at least 70% of fine
                   sediments (>125µm).
              c.   a wastewater treatment device, such as an oil and hydrocarbon separator,
                   triple interceptor or equivalent, capable of removing droplets larger than
                   60µm (i.e. corresponding to outlet discharge of approximately 15mg/L) and
                   to a point where there is no visible sheen or odour on stormwater. This
                   device is to be able to meet these requirements during a storm up to the 2
                   year ARI-6 minute design rainfall event without surcharging or backing up
                   the drainage system.
              d.   flow cut-off valves are to be installed at the outlet from the separator to use
                   in case of an emergency or cleaning operations.
              e.   be maintained in accordance with the manufacturers recommendations.
              f.   be engineered to ventilate any likely hazchem vapour and make a safe
                   working environment in accordance with the Model Development Code for
                   Hazardous Industries and Chemicals - Workplace Health and Safety
                   Queensland.
              Equipment Integrity Test (EIT) of UPSS
        66.   An EIT of the UPSS is to be conducted by a duly qualified person in accordance
              with the manufacturer’s written instructions specific to the UPSS.
        67.   The EIT must be capable of detecting a leak of 0.38 litres per hour, with a
              probability of detection of at least 95% and of false detection of 5% or less in
              accordance with AS 4897–2008 – The design, installation and operation of
              underground petroleum storage systems.
        68.   The EIT must be a nationally approved and certified method of testing that meets,
              at a minimum, the requirements or certification standards of the United States
              Environmental Protection Agency (USEPA 1990).
        69.   The EIT of the UPSS must be undertaken at the following times :
              a.   immediately before commissioning the new UPSS
              b.   immediately following any modification to the UPSS
              c.   immediately following installation of re-used equipment
              d.   immediately following any equipment retrofit
              e.   immediately following any repair to UPSS equipment
              f.   where the leak detection systems indicate failure
              g.   where there is only one method of leak detection system in use
              h.   where there is evidence of a leak

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