Description: Provisional protection zones for Community and Group drinking water sources have been delineated in accordance with Schedule 1 of the proposed Canterbury Land and Water Regional Plan and are based on the best available information as at May 2015. Environment Canterbury has reviewed information on the location of Community and Group drinking water sources in association with Water Suppliers, Territorial Authorities and Community and Public Health
Name: Drains and watercourses (Flood Protection and Drainage Bylaw 2013)
Display Field: NAME
Type: Feature Layer
Geometry Type: esriGeometryPolyline
Description: This dataset has been created from the a georeferenced plans and Engineering knowledge of the drains that the Regional Council manages and maintains through out the region. Note equipment used by the regional council needs at most 7.5m strip alongside the drain. Buffering of 10m has been added so as to alleviate any errors in drawing of the drains, therefore consider the two outer lines as advisory only. Attribute fields: Feature Name: Type (Canals, Rivers, Waterway ie Creeks; and Drains. No definitions on the differences were given on original map) Grid: Grid number given on map Given Length: Length of Drain given on map 2 Name: Name of Drain Asset Number: ECan asset number ID: ECan ID number
SOURCECODE
(
type: esriFieldTypeString, alias: SOURCECODE, length: 6
, Coded Values:
[NZMSGR: Derived from a NZMS 260 Grid Reference.]
, [NZTMGR: Derived from a NZTM Grid Reference]
, [GPS: Direct input from a GPS device]
, ...3 more...
)
QARCODE
(
type: esriFieldTypeSmallInteger, alias: QARCODE
, Coded Values:
[1: Differential GPS (advanced) or Geodetic Land Survey.]
, [2: Standard handheld GPS OR accurate location sketch, confirmed by GIS.]
, [3: Site visit OR dillers GPS OR checked location sketch using GIS.]
, ...4 more...
)
Description: A draft boundary line shows areas of vegetation retained under the Soil Conservation and Rivers Control Act (1941).A desired boundaryline showsareas where it would be beneficial to increase the vegetated buffer width to the land side so that a consistent protective buffer can be achieved. In some cases, on the river side, the actual buffer width will depend on whether or not the vegetated buffer can be made to fill the area to the desired fairway edge in a reasonable time or not. On the landward side, any areas for new planting will need to be agreed with the landowner (and in general terms at least by the rating district).
Name: Floodways (Flood Protection and Drainage Bylaw 2013)
Display Field: STATUS
Type: Feature Layer
Geometry Type: esriGeometryPolyline
Description: See RMA definition of riverbed and NRRP guidance 6.2 2 2. Generally, a river bed line shows the outside toe of the stopbank where there are stopbanks (provided the stopbank is of a sufficient standard), a terrace, or, where there are no well-defined terraces or stopbanks, a pragmatic boundary such as a ridge, the edge of a channel or a road. Where a "draft river bed" line is shown, a"alternativeriver bed line"is less preferred. Where there are multiple "alternative" lines shown, there is less certainty about which line is most reasonable. Where there is only one "alternative" line and no "draft"line, this is an area where there is little evidence and least confidence in the line.
Copyright Text: Matt Surman (rating district rivers)
Hilary Fraser (some southern rating districts)
John Trevena (outside rating districts)
Description: The Coastal Confined Gravel Aquifer System is a relatively narrow band of confined gravel aquifers, situated near the coast between the Ashley and Rakaia rivers, bounded by the coastal marine area, Banks Peninsula, and on
the western side by the line where sediments in the overlying confining layer are three metres thick. The aquifer system consists of at least five permeable gravel layers containing water (aquifer), separated by relatively impermeable layers of sediments (confining layers). Recognisable surface features have been used to
approximate the natural boundary because the latter is not obvious at the ground surface.