During the period studied for this research, 2003–2005, there were six landfills and one stand-alone transfer station in the Wellington catchment. Several of the landfills also contain “transfer stations” for the use of smaller vehicles. A brief description of the facilities is presented in the table below.
Table 3.1 – Disposal facilities in the Wellington region
|
Northern landfill – closed February 2006 |
|
|---|---|
|
Owned by |
Wellington City Council |
|
Waste types |
General commercial and residential wastes No hazardous wastes accepted Council domestic kerbside collections Greenwaste separated and composted |
|
Gate charge for general waste |
$71.70/tonne |
|
Cover material |
Cleanfill and imported material |
|
Otaihanga landfill |
|
|
Owned by |
Kapiti Coast District Council |
|
Waste types |
General commercial and residential wastes No hazardous wastes accepted Council domestic kerbside collections Greenwaste separated and composted Sludge from Paraparaumu wastewater treatment plant |
|
Gate charge for general waste |
$22/cubic metre |
|
Cover material |
Cleanfill |
|
Otaki transfer station |
|
|
Owned by |
Kapiti Coast District Council |
|
Waste types |
General commercial and residential wastes No hazardous wastes accepted All materials taken to Otaihanga landfill Greenwaste separated and composted |
|
Gate charge for general waste |
$22/cubic metre |
|
Silverstream landfill |
|
|
Owned by |
Hutt City Council |
|
Waste types |
General commercial and residential wastes Hazardous wastes accepted Council domestic kerbside collections Greenwaste disposed of to landfill Sludge from Te Marua water treatment plant Sludge from Seaview wastewater treatment plant |
|
Gate charge for general waste |
$68/tonne |
|
Cover material |
Sawdust |
|
Southern landfill |
|
|
Owned by |
Wellington City Council |
|
Waste types |
General commercial and residential wastes Hazardous wastes accepted Council domestic kerbside collections Greenwaste separated and composted |
|
Gate charge for general waste |
$78/tonne (reduced from $101/tonne in 2006) |
|
Gate charge for cleanfill |
$4.20/tonne on an as required basis (reduced from $10.20/tonne in 2006) |
|
Cover material |
Cleanfill and imported material |
|
Spicer landfill |
|
|
Owned by |
Porirua City Council – 78.5% Wellington City Council – 21.5% |
|
Waste types |
General commercial and residential wastes Hazardous wastes accepted Council domestic kerbside collections Greenwaste disposed of to landfill Sludge from Porirua Treatment Plant |
|
Gate charge for general waste |
$80/tonne |
|
Cover material |
Cleanfill |
|
Wainuiomata landfill |
|
|
Owned by |
Hutt City Council |
|
Waste types |
General commercial and residential wastes No hazardous wastes accepted Council domestic kerbside collections Greenwaste disposed of to landfill Sludge from Wainui water treatment plant |
|
Gate charge for general waste |
$68/tonne |
|
Cover material |
Minor amounts of sawdust |
The New Zealand Waste Strategy defines “cleanfills” as “waste disposal sites that accept only inert wastes. These include materials such as clay, soil, rock, concrete and bricks.”
The establishment and operation of cleanfills are subject to different controls by different local authorities. District plans may require land use consents for cleanfills, and regional councils may require resource consents to control the environmental effects. The monitoring and reporting of volumes and types of materials disposed of at cleanfills may or may not be required as part of the consent process.
In many district and regional plans cleanfills can be a permitted activity, depending on factors such as size and proximity to watercourses. This means that cleanfill sites, particularly relatively small, short-term operations, may not be known to councils.
The cleanfill sites in the table that follows are known to be operating in the Wellington region. The list is not likely to include all sites in the region.
Table 3.2 – Cleanfill sites
|
Hutt City Council |
|---|
|
Manor Park – Dry Creek Quarry |
|
Manor Park – Benmore Crescent |
|
Mangaroa Valley |
|
Wainuiomata – Waiu Street |
|
Kapiti Coast District Council |
|
Otaki transfer station, on closed landfill site |
|
Porirua City Council |
|
Three consented sites, including one at Judgeford |
|
Wellington City Council |
|
C&D Landfills Ltd in Careys Gulley, alongside Southern landfill |
|
T&T Landfill in Happy Valley |
There are two commercial composting operations in the Wellington region:
Living Earth site, part of the Careys Gully complex in Wellington that includes the Southern landfill – processes sewage sludge and greenwaste
Site at the Otaihanga landfill, operated by Composting New Zealand Ltd – processes greenwaste