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This dataset was first added to WDC Data Service on 23 Aug 2020.
bfc6851f-51d2-456c-8c7d-ddff4a944d2a
District Plan
GIS Team
Waikato District Council
2020-10-19T16:51:50
ISO 19115:2003/19139
1.0
EPSG:2193
Proposed Mine Subsidence Risk Area
Strategic Planning and Resource Managment Team Leader
Waikato District Council
info@waidc.govt.nz
Waikato District Council - Proposed District Plan (Stage 2 Natural Hazards), Notified 27 July 2020.
This layer is a spatial representation of an overlay in the Proposed District Plan and indicates where land use will be regulated by various associated rules. It will be used as a guide in the regulatory process of implementing the Proposed District Plan and managing land use, subdivision, the environment and economy. This dataset is subject to changes undertaken through the Resource Management act. Note individual Proposed Plan rules can have different statuses, some may have current legal effect and others will not until the Proposed Plan becomes operative. This data is provided for use in the District Plan only.
The Mine Subsidence Risk Area identifies land in Huntly East that is currently at risk of subsidence due to historic underground coal mining activities and the subsequent closure and refilling of the Huntly East underground mine. An assessment has been carried out to confirm the likelihood of ongoing mine subsidence and methane gas migration from mine workings to the ground surface above the Huntly East mine and the South Headings as a result of the closure of the Huntly East Mine and subsequent flooding of the underground mine workings (see Appendix 5(c) of Section 32 report Natural Hazards and Climate Change). This belongs to the series of data relating to Natural Hazards which includes the following groups - coastal erosion, coastal inundation, inland flooding, and land subsidence. This layer belongs to the land subsidence group (this is the only layer in this group).
METHODOLOGY: hand digitised.
Includes both subsidence and gas hazard. Methodology for determining gas hazard area is based on methodology used to predict where natural gas (and oil) can be found due to the configuration of confining strata. More detail on methodology is described in Appendix 5 (c) (IRBA, Oct 2018, "Report on hazard following mine closure, Huntly East").
SOURCE DATA: Shapefile provided by IRBA on 5 August 2019, via email (archived in ECM 2379763). Name of shapefile: hazard_area_small_columns_gas
SPATIAL REFERENCE SYSTEM: EPSG2193
SPATIAL REPRESENTATION TYPE: vector
ADDITIONAL NOTES: Related documentation: Report was peer reviewed and a risk assessment undertaken (see appendix 5(d) and 5(e) of Section 32 report.
Waikato District Council
GIS Team Leader
15 Galileo Street
Ngaruawahia
3720
New Zealand
info@waidc.govt.nz
DP_Mine_Subsidence_Risk_Area_vw
GEO/GPlan/DP_Mine_Subsidence_Risk_Area_vw
District Plan
Resource Management Act
CC-BY-4.0
1000
planningCadastre
Waikato District Council
info@waidc.govt.nz
KML
1
https://data.waikatodistrict.govt.nz/
WWW:LINK-1.0-http--link
Waikato District Council's data repository and download service
https://waikato.intramaps.co.nz/IntraMaps90?project=Waikato&module=District%20Plan&x=1791000.06&y=5847600.0&zoom=300000&configId=b2549ae1-f643-4ac6-9586-211ba985dd89
WWW:LINK-1.0-http--samples
Waikato District Council Intramaps
Map viewer with the District Plan maps, these are linked to the E-Plan software
Refer Planning Text..