Annual Report 2010 - Christchurch City Council

Refuse minimisation
and disposal
Council activities and
services
Annual Report
Christchurch Otautahi
2010
p91.
Council activities and services
Refuse minimisation and disposal
What did we achieve?
The Burwood gas project continues to perform very well. The gas
reticulation pipelines to the Christchurch Wastewater Treatment
Plant and a line to feed the Art Gallery and new Civic Building were
completed and the Art Gallery is now running on landfill gas. The
new Civic Building is being commissioned on landfill gas. In 2010
we received our second payment for carbon credits associated with
the Burwood gas project. In addition we have sold $138,700 of “grey
carbon credits”.
The new kerbside collection system has been running for 16 months
and the participation and success of the scheme is impressive.
There has been 11,000 tonnes of additional kerbside material
recycled (33% increase) and 46,800 tonnes of kerbside organic
waste processed through the new compost plant. Whilst more
residual waste (red bin material) was collected than originally
anticipated (36,800 tonnes versus 33,100 tonnes under bag system)
the total Council waste sent to Kate Valley landfill dropped from
131,000 tonnes to 90,000 tonnes.
During the year we continued to monitor progress towards our
community outcomes. One of the measures for environment is
quantity of waste to landfill per person (2010: 484.7 kilograms).
This has decreased considerably since 2008 (677) and 2009
(603) and follows a steady trend of annual decreases since 2005.
Conversely the tonnes of green waste composted has increased
from 28,930 in 2008 to 46,800 in 2010 due to the introduction of the
green bins and ongoing education on organic materials.
In August 2009 we purchased the assets and liabilities of Meta
Holdings Limited which runs the Material Recovery Facility and
transfer stations.
The capping of Burwood landfill is on schedule for completion in
July-August 2010. Restoration work and planting will continue in
future years.
The Target Sustainability programme has continued to be very
successful with the business community.
We committed $0.1 million to the Canterbury Waste Joint
Committee towards regional waste minimisation projects. These
projects included the continuation of the compost trial in South
Canterbury and at Lincoln, aimed at verifying the benefits of using
compost in agriculture. External funding was gained in the 2010
financial year to support this trial which has now been extended to
5 years.