16-001014-02A (Ultimate SCMMP)

                                                                                                                       Condition Maintenance
 What to look for                                        Performance Indicator (PI)^                                                                                                Additional Work Needed
                                                                                                                       Rating*   undertaken**
                                                         During dry conditions, the water level is not
 Water levels                                            more than 0.3m below the normal operating
                                                         level
                                                         Minimum 80% vegetation cover on batters and
                                                         in water up to 300mm deep (higher if the
                                                         vegetation provides a public‐safety exclusion
 Vegetation                                              role)
                                                         Average plant height > 500mm
                                                         Plants are healthy and free from significant
                                                         disease.
                                                         No declared weeds present (or declared weeds
 Weeds2                                                  are controlled)
 (emergent, floating or submerged)
                                                         Maximum 10% cover of weeds
                                                         Maximum 10% cover of algal mats on two
 Algal Mats
                                                         consecutive inspections
 Mosquitoes                                              1 larvae per 2 ladle dips (300mL ladle)

 Fertiliser3                                             No presence of fertiliser on banks of WQCP
                                                         Water is clear, that is turbidity is such that the
                                                         floor of the pond can be seen at 0.75m depth

                                                         No visible algal blooms
 Cyanobacterial Blooms
                                                         Macrophyte coverage to be above 20% of the
                                                         WQCP water surface.
                                                         Plants are healthy and are free from significant
                                                         disease
*1 – PI met; 2 – PI met after maintenance activity; 3 – Additional maintenance needed; 4 – Rectification may be needed; NI – not inspected; NA – not applicable
**Quantify where possible e.g. amount of sediment or litter removed
1
 Monitor the rate of accumulation by checking sediment levels at least once per year. This may involve establishing one or more reference points within different zones of the WQCP. Where sediment depths are greater than
150mm, a bathymetric survey of the WQCP may be required to determine the full extent of accumulation
2
 Appendix B of WBD’s Maintaining Vegetated Stormwater Assets (2012) provides details of common weed species. Both declared and environmental/nuisance weeds are incorporated into this list
3
 Application of fertiliser in upstream catchment to be scheduled and measured to maximise nutrient uptake by plants and avoid runoff to WQCP.
^Performance indicators and monitoring triggers outlined in this document are subject to latest specifications provided in peer reviewed journal publications and health regulations. Changes are to be made where appropriate.