{ "currentVersion": 11.3, "cimVersion": "3.3.0", "id": 23, "name": "Residual Flows", "type": "Feature Layer", "description": "Many resource consents contain a condition limiting the taking of water when a river or waterway is on restrictionA residual flow applies to specific consents that take water from a tributary of a main river. A residual flow recognises that a tributary stream often has different flow characteristics from the main river stem. It is set at the point of take on a case-by-case basis, to provide for the aquatic ecosystems and natural character of the source water body.Intended UseThe residual flow sites layer is intended to show the location of the monitoring sites associated with maintaining residual flows.Attribute InformationMonitoring Site informationSiteID \u2013 Unique identification number for this site in Environment Canterbury database systemsWaterway \u2013 name of the water feature that this site relates to for residual flow purposesLocation \u2013 name for the location that the monitoring is undertakenRestrictionType \u2013 type of restriction (in this case Residual Flow restriction) that this site is used for monitoring.ReferenceSystem \u2013 Environment Canterbury data management system that the monitoring site information is being managed within.ReferenceNo \u2013 Internal ID for this site within the listed reference data management systemSiteAccount \u2013 Internal account for monitoring site.GroupAccount \u2013 Monitoring group.QARCode \u2013 Quality assurance code that describes the spatial accuracy of the site information. 1 = Differential GPS (advanced) or Geodetic Land Survey (1 - 2m); 2 = Standard handheld GPS (2 - 15m); 3 = Site visit (10 - 50m); 4 = Old Grid reference ±100m, no location sketch, or location not checked (50 - 300m); 5 = Proposed Location, should be within 50m (< 50m)Altitude \u2013 Approximate altitude of the monitoring site (above mean sea level) relative to the datum listed in the AltitudeDatum field. Values where the data is missing or displays 0 represent sites where that information is not available.AltitudeDatum \u2013 The vertical datum that the listed altitude value was recorded using. See https://www.linz.govt.nz/data/geodetic-system/datums-projections-and-heights/vertical-datums for more information about the vertical datums commonly used in New Zealand.IsActive \u2013 Current status on whether a site is being used for residual flow monitoring. Records with this value set to No are not currently part of residual flow monitoring for consents.CatchmentNo \u2013 unique identification number for the hydrological catchment that the monitoring site lies within. See https://opendata.canterburymaps.govt.nz/datasets/catchment-boundaries/explore for more details.CatchmentDesc \u2013 name used for hydrological catchment that the monitoring site lies within. 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