Description: Dam Boundaries for the Western Cape - Topological corrected by GI&A in 2013FIDInternal IDCATCH8_UnknownCATCH8_IDUnknownGRID_CODEGrid code used for capturing purposesQUATERNARYQuaternary Catchment IDInPoly_FIDUnknownSmoPgnFlagUnknownPRIMARY_Primary Catchment IDSECONDARYSecondary Catchment IDTERTIARYTertiary Catchment IDShape_STArShape Area in Decimal degreesShape_STLeShape length in Decimal degreesPublication date: 26 October 2020
Service Item Id: 23db8256929b4f49aca562c7acec4e43
Copyright Text: Department of Water and Sanitation ( DWS)
Description: A layer showing general discharge authorisations within the Western Cape The General Discharge Authorisation is provided for in terms of section 69(2) of the National Environmental Management: Integrated Coastal Management Act, 2008 (Act No. 24 of 2008) and is applicable to discharges of effluent from land-based sources into coastal waters of the Republic. Publication Date: 15 July 2022Attribute DefinitionsArea_sqkm (AREA_SQKM) - The total general discharge authorisation area, in km2 as calculated from the spatial data.Port (PORT) - The name of the applicable port subject to GDAGDA (GDA) - Applicability of the GDA
Description: Stormwater Open Watercourses(OWC):rivers identification information.The status of the official Open Watercourse layer is representative of natural and built river systems, which integrates surface stormwater runoff into underground urban drainage reticulation, from upstream mountain intakes to coastal outfalls. Rain-water is routed along natural flow paths, via environmental wetland eco-systems and artificial storm detention/retention depressions, through existing streams and tributaries of the bulk open natural and built-infrastructure river systems. The Open Watercourses are intercepted by Inlet-Outlet infrastructure, which deposits stormwater urban runoff into underground stormwater drainage reticulation networks, then converges with the road drainage runoff taken into catchpits from road surface channels into the underground reticulation, by means of the above open/closed systems, towards coastal outfalls.(OWC: spatial vector / non-spatial (attribute or tabular) / spatial extents)Open Watercourse river reaches are comprised of feature types such as Natural Rivers, Streams, Channels, Canals, Overland Flow Paths/Gap Connectors and Stream Extensions.The spatial coverage of Open Watercourses of the greater Cape Town Drainage Catchment area includes all rivers within the catchments, which drain into but also extend outside the Cape Town metro area.
Color: [0, 0, 0, 255] Background Color: N/A Outline Color: N/A Vertical Alignment: bottom Horizontal Alignment: center Right to Left: false Angle: 0 XOffset: 0 YOffset: 0 Size: 8 Font Family: Arial Font Style: normal Font Weight: normal Font Decoration: none
Description: Wetlands of the City of Cape Town - aquatic features of the Biodiversity Network. For wetland representation and prioritisation for inclusion as aquatic features in the City's Biodiversity Network. To be used in conjunction with the terrestrial Biodiversity Network and rivers layers.
Description: The 2021 spatial layer for SWSAs for surface water is a fine-scale delineation of the SWSAs, intended to support the integration of SWSAs in a range of catchment- and local-level planning, management, and regulatory processes. These include Catchment Management Strategies and their associated plans, land-use planning by municipalities, Environmental Impact Assessments and environmental authorisations, restoration projects undertaken through programmes such as Working for Water and Working for Wetlands, and expansion of South Africa’s protected area estate by conservation authoritiesThe 2021 SWSA for surface water layer is a refined spatial resolution of all the 22 SWSAs for surface water identified in 2018. It is not intended to be a revision of the 2018 SWSAs. It is intended to be integrated into a range of catchment- and local-level planning, management, and regulatory processes. Such as, in Catchment Management Strategies and their associated plans, in land-use planning by municipalities, in Environmental Impact Assessments and environmental authorisations, in restoration projects undertaken through programmes such as Working for Water and Working for Wetlands, and in expansion of South Africa’s protected area estate by conservation authorities (often in partnership with private and communal landowners).Publication
Name: WRC Strategic Water Areas (ground and surface)
Display Field: Name_sw
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: This GIS layer shows the outlines of the Strategic Water Source Areas (SWSAs) for surface water (SWSA-sw) and groundwater (SWSA-gw) that have been delineated as part of a Water Research Commission (WRC) project (K5/2431). Surface water SWSAs are defined as areas of land that supply a is proportionate (i.e. relatively large) quantity of mean annual surface water runoff in relation to their size. They include transboundary areas that extend into Lesotho and Swaziland. Groundwater SWSAs are areas which combine areas with high groundwater availability as well as where this groundwater forms a nationally important resource. The sub-national Water Source Areas (WSAs) are not nationally strategic as defined in the report but were included to provide a complete coverage. Publication date: Nov 2017
Description: Quaternary Drainage/Catchment Regions for the Western Cape. The development of a hydrologically improved Digital Elevation Model and derived products for the Western Cape based on the SRTM DEM. Water Research Commission, Research Report No.1908/1/11, Pretoria. DWS publication date is 2012 with minor updates done in 2018.Data sourced from DWS on 26 October 2020.FIDInternal IDP_CATCH_NOPrimary Catchment NumberLINE_IDLine IDID_DESCRIPID DescriptionDAM_NAMEDam NameMAPSHEET501:50 000 map sheet numberDATECREATEDate CreatedShape_STLeShape length in Decimal DegreesShape_ST_1Shape area in Decimal Degrees
Service Item Id: 23db8256929b4f49aca562c7acec4e43
Copyright Text: Department of Water and Sanitation ( DWS)