Decision report- Carey's Gully Sludge Dewatering Facility - Greater ...

Note: It is therefore possible to dispose of sludge which is at times less than
20% dry solids (but no less than 15% dry solids) provided the overall weekly
average is greater than 20%.
5. The consent holder must, by the end of each working day, fully cover the sludge
refuse mixture at the landfill with compacted suitable soil cover to contain odour
emissions.
6. A final capping layer of at least 600 millimetres of low permeability material
shall be applied by the consent holder to each landfill stage to contain odour
emissions.
7. The landfill must be monitored for landfill gas evolution and migration through
its operational stages and following closure of each landfill stage. Records of
monitoring must be forwarded to Wellington City Council’s Compliance
Monitoring Officer on request.
8. Dewatered sludge discharged to the landfill must be combined with solid refuse
at a ratio of at least four parts per solid refuse to one part of sludge measured on
a daily basis.
9. The consent holder must keep accurate daily records of the dewatered sludge
volume and the waste deposited at the landfill. These records must be made
available to Wellington City Council on request.
10. The consent holder must take effective precautions to ensure that dewatered
sludge is not tracked or otherwise taken off the disposal site.
11. The consent holder must ensure that the public is excluded from any sludge
disposal area within the landfill at all times, unless the sludge refuse mixture is
thoroughly mixed, compacted and covered with at least 600 millimetres of
suitable soil cover.
12. The consent holder must pay to the Wellington City Council the actual and
reasonable costs associated with the monitoring of conditions [or review of
consent conditions], or supervision of the resource consent as set in accordance
with section 36 of the Resource Management Act 1991. These costs* may
include site visits, correspondence and other activities, the actual costs of
materials or services, including the costs of consultants or other reports or
investigations which may have to be obtained.
* Please refer to the current schedule of Resource Management Fees for guidance on the
current administration charge and hourly rate chargeable for Council officers.
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