Noosa Springs SMP_Rev 4 · OPW17/0612

ALTUM CONSTRUCTIONS
PRECINCT F & E2 NOOSA SPRINGS DEVELOPMENT



          Watering

          Regular watering of vegetation is essential for successful establishment and healthy
          growth. The frequency of watering to achieve the successful plant establishment is
          dependent upon rainfall, maturity of planting stock and the water holding capacity of the
          soil. The following watering program is generally adequate but should be adjusted to suit
          the site conditions:

             Week 1-2             3 visits/week

             Week 3-6             2 visits/week

             Week 7-12            1 visit/week

          After this initial 3 month period, watering may still be required, particularly during the first
          winter. Watering requirements to sustain healthy vegetation should be determined during
          ongoing maintenance site visits.

5.2       Bioretention / Infiltration Sw ale Maintenance

          Vegetation plays a key role in maintaining the porosity of the filter media of a bioretention
          basin or infiltration swale and a strong healthy growth of vegetation is critical to its
          performance. Therefore the most intensive period of maintenance is during the plant
          establishment period (first two years) when weed removal and replanting may be required.

          Typical maintenance of bioretention basin and infiltration swale elements as outlined
          within Healthy Waterways Technical Design Guidelines will involve:

             Routine inspection of the basin/swale profile to identify any areas of obvious increased
              sediment deposition, scouring from storm flows, rill erosion of the batters from lateral
              inflows, damage to the profile from vehicles and clogging of the filter media (evident by
              a ‘boggy’ filter media surface).

             Routine inspection of the inflows systems, overflow pits and under-drains to identify
              and clean any areas of scour, litter build up and blockages.

             Removal of sediment where it is smothering the vegetation.

             Where a sediment forebay is adopted, removal of accumulated sediment.

             Repairing any damage to the profile resulting from scour, rill erosion or vehicle
              damage by replacement of appropriate fill and revegetation.

             Tilling of the filter media surface, or removal of the surface layer, if there is evidence of
              clogging.

             Regular watering/irrigation of vegetation until plants are established and actively
              growing.


Job No. M7130_001                                                                                 Page 14
                                                                                   Rev 4 : 7 December 2017