--- title: WA Department of Water and Environmental Regulation open data resource: https://publicdata.au/wa/department-of-water-and-environmental-regulation/ jurisdiction: Western Australia catalogue_read: 2026-09-28 not_endorsed: true --- # WA Department of Water and Environmental Regulation open data Department of Water and Environmental Regulation lists 147 datasets on catalogue.data.wa.gov.au. 0 of them have an open licence and a file or API we can read. ## On the portals - [2003-2005 ASS Site Evaluation (DWER-047)](https://catalogue.data.wa.gov.au/dataset/2003-2005-ass-site-evaluation-dwer-047) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Acid Sulfate Soil Risk Map, Albany-Torbay (DWER-054)](https://catalogue.data.wa.gov.au/dataset/acid-sulphate-soil-risk-map-albany-torbay-dwer-054) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Acid Sulfate Soil Risk Map, Estuaries (DWER-050)](https://catalogue.data.wa.gov.au/dataset/acid-sulfate-soil-risk-map-estuaries-dwer-050) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Acid Sulfate Soil Risk Map, Geraldton (DWER-051)](https://catalogue.data.wa.gov.au/dataset/acid-sulfate-soil-risk-map-geraldton-dwer-051) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Acid Sulfate Soil Risk Map, Lower South West (DWER-052)](https://catalogue.data.wa.gov.au/dataset/acid-sulfate-soil-risk-map-lower-south-west-dwer-052) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Acid Sulfate Soil Risk Map, Pilbara Coastline (DWER-053)](https://catalogue.data.wa.gov.au/dataset/acid-sulfate-soil-risk-map-pilbara-coastline-dwer-053) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Acid Sulfate Soil Risk Map, Swan Coastal Plain (DWER-055)](https://catalogue.data.wa.gov.au/dataset/acid-sulphate-soil-risk-map-swan-coastal-plain-dwer-055) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Aquatic GDE in the Fitzroy Water Planning Area (DWER-126)](https://catalogue.data.wa.gov.au/dataset/aquatic-groundwater-dependent-ecosystems-in-the-fitzroy-water-planning-area) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Bindjareb Djilba (Peel Harvey) Seagrass Survey - Cover (DWER-128)](https://catalogue.data.wa.gov.au/dataset/bindjareb-djilba-peel-harvey-seagrass-survey-cover) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Bindjareb Djilba (Peel Harvey) Seagrass Survey - Extent (DWER-129)](https://catalogue.data.wa.gov.au/dataset/bindjareb-djilba-peel-harvey-seagrass-survey-extent) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Bindjareb Djilba (Peel Harvey) Seagrass Survey - Points (DWER-127)](https://catalogue.data.wa.gov.au/dataset/bindjareb-djilba-peel-harvey-seagrass-survey-points) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [CAWSA Part 2A Clearing Control Catchments (DWER-004)](https://catalogue.data.wa.gov.au/dataset/cawsa-part-2a-clearing-control-catchments) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Clearing Instruments Activities (Areas Approved to Clear) (DWER-076)](https://catalogue.data.wa.gov.au/dataset/clearing-instruments-activities) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +5; Custom (Active Acceptance); updated 2026-09-27) - [Clearing Instruments Conditions (Areas Subject to Conditions) (DWER-077)](https://catalogue.data.wa.gov.au/dataset/clearing-instruments-conditions) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +5; Custom (Active Acceptance); updated 2026-09-27) - [Clearing Instruments Proposals (Areas Applied to Clear) (DWER-075)](https://catalogue.data.wa.gov.au/dataset/clearing-instruments-proposals-dwer-074) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Clearing Referral Proposal (DWER-116)](https://catalogue.data.wa.gov.au/dataset/clearing-referral-proposal) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Clearing Regulations - Environmentally Sensitive Areas (DWER-046)](https://catalogue.data.wa.gov.au/dataset/clearing-regulations-environmentally-sensitive-areas-dwer-046) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Clearing Regulations - Schedule One Areas (DWER-057)](https://catalogue.data.wa.gov.au/dataset/clearing-regulations-schedule-one-areas-dwer-057) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +3; Custom (Active Acceptance); updated 2026-09-27) - [Contaminated Sites Database (DWER-059)](https://catalogue.data.wa.gov.au/dataset/contaminated-reported-sites-dwer-059) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +3; Custom (Active Acceptance); updated 2026-09-27) - [Contaminated Sites Database - Restricted (DWER-073)](https://catalogue.data.wa.gov.au/dataset/contaminated-sites-restricted-dwer-073) (API, API ARCGIS SERVER FEATURE SERVICE, API ARCGIS SERVER MAP SERVICE, FGDB +5; Custom (Government Use); updated 2026-09-27) - [Department of Water and Environmental Regulation Regional Boundaries (DWER-001)](https://catalogue.data.wa.gov.au/dataset/department-of-water-dow-regional-boundaries) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [DWER Water Information Sites (DWER-145)](https://catalogue.data.wa.gov.au/dataset/dwer-water-information-sites) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +5; Custom (Active Acceptance); updated 2026-09-27) - [EPA Referred Schemes (DWER-119)](https://catalogue.data.wa.gov.au/dataset/epa-referred-schemes) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [EPA Referred Schemes Pending (DWER-121)](https://catalogue.data.wa.gov.au/dataset/epa-referred-schemes-pending) (API, API ARCGIS SERVER FEATURE SERVICE, API ARCGIS SERVER MAP SERVICE, FGDB +5; Custom (Government Use); updated 2026-09-27) - [EPA Referred Significant Proposals (DWER-120)](https://catalogue.data.wa.gov.au/dataset/epa-referred-significant-proposals) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [EPA Referred Significant Proposals Pending (DWER-103)](https://catalogue.data.wa.gov.au/dataset/eiaoc-pending) (API, API ARCGIS SERVER FEATURE SERVICE, API ARCGIS SERVER MAP SERVICE, FGDB +5; Custom (Government Use); updated 2026-09-27) - [EPA-SIER (DWER-060)](https://catalogue.data.wa.gov.au/dataset/epa-sier) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +3; Custom (Active Acceptance); updated 2026-09-27) - [EPB Local Assesment Port Hedland Port 2011 (DWER-061)](https://catalogue.data.wa.gov.au/dataset/epb-local-assesment-port-hedland-port-2011-dwer-061) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +3; Custom (Active Acceptance); updated 2026-09-27) - [EPP 2011 Western Swamp Tortoise Policy Boundary (DWER-062)](https://catalogue.data.wa.gov.au/dataset/epp-2003-western-swamp-tortoise-policy-boundary-dwer-062) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +3; Custom (Active Acceptance); updated 2026-09-27) - [EPP Goldfields Residential Areas Sulphur Dioxide 2003 (DWER-063)](https://catalogue.data.wa.gov.au/dataset/epp-goldfields-residential-areas-sulphur-dioxide-2003-dwer-063) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Foreshore Conditions - Assessment of Left Bank Protection Fencing (DWER-005)](https://catalogue.data.wa.gov.au/dataset/foreshore-conditions-assessment-of-left-bank-protection-fencing) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Foreshore Conditions - Assessment of Right Bank Protection Fencing (DWER-006)](https://catalogue.data.wa.gov.au/dataset/foreshore-conditions-assessment-of-right-bank-protection-fencing) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Foreshore Conditions - Erosion (DWER-007)](https://catalogue.data.wa.gov.au/dataset/foreshore-conditions-erosion) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Foreshore Conditions - Fencing Linework (DWER-008)](https://catalogue.data.wa.gov.au/dataset/foreshore-conditions-fencing-linework) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Foreshore Conditions - Left Bank Condition (DWER-009)](https://catalogue.data.wa.gov.au/dataset/foreshore-conditions-left-bank-condition) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Foreshore Conditions - Points of Interest (DWER-010)](https://catalogue.data.wa.gov.au/dataset/foreshore-conditions-points-of-interest) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Foreshore Conditions - Right Bank Condition (DWER-011)](https://catalogue.data.wa.gov.au/dataset/foreshore-conditions-right-bank-condition) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Foreshore Conditions - River Access (DWER-012)](https://catalogue.data.wa.gov.au/dataset/foreshore-conditions-river-access) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Foreshore Conditions - Weeds (DWER-013)](https://catalogue.data.wa.gov.au/dataset/foreshore-conditions-weeds) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [FPM 1 in 100 (1%) AEP Floodplain Development Control Area (DWER-003)](https://catalogue.data.wa.gov.au/dataset/fpm-floodplain-development-strategy) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [FPM 1 in 100 (1%) AEP Floodway and Flood Fringe Area (DWER-014)](https://catalogue.data.wa.gov.au/dataset/fpm-100-year-ari-floodway-and-flood-fringe-areas) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [FPM 1 in 100 (1%) AEP Floodway and Flood Fringe Line (DWER-015)](https://catalogue.data.wa.gov.au/dataset/fpm-100-year-ari-floodway-and-flood-fringe-line-dow-043) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [FPM Bridges (DWER-016)](https://catalogue.data.wa.gov.au/dataset/fpm-bridges) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [FPM Extent of Flooding (DWER-017)](https://catalogue.data.wa.gov.au/dataset/fpm-extent-of-flooding) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [FPM Flood Level Contours (m AHD) (DWER-018)](https://catalogue.data.wa.gov.au/dataset/fpm-flood-level-contours) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [FPM Flood Level Points (m AHD) (DWER-019)](https://catalogue.data.wa.gov.au/dataset/fpm-flood-level-points) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +3; Custom (Active Acceptance); updated 2026-09-27) - [FPM Floodplain Area (DWER-020)](https://catalogue.data.wa.gov.au/dataset/fpm-floodplain-area) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [FPM Historical Extent of Flooding (DWER-123)](https://catalogue.data.wa.gov.au/dataset/fpm-historical-extent-of-flooding) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [FPM Historical Flood Levels (m AHD) (DWER-122)](https://catalogue.data.wa.gov.au/dataset/fpm-historical-flood-levels-m-ahd) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +3; Custom (Active Acceptance); updated 2026-09-27) - [FPM Historical Floodplain Area (DWER-124)](https://catalogue.data.wa.gov.au/dataset/fpm-historical-floodplain-area) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [FPM Levee Banks (DWER-021)](https://catalogue.data.wa.gov.au/dataset/fpm-levee-banks) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [FPM Location of Cross Sections (DWER-022)](https://catalogue.data.wa.gov.au/dataset/fpm-location-of-cross-sections) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Garden Bore Suitability (DWER-025)](https://catalogue.data.wa.gov.au/dataset/garden-bore-suitability) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Gnangara Jandakot Depth to Groundwater (Contours) – 2019 Max (DWER-096)](https://catalogue.data.wa.gov.au/dataset/gnangara-jandakot-depth-to-groundwater-contours-2019-max) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Gnangara Jandakot Depth to Groundwater (Contours) – 2019 Min (DWER-095)](https://catalogue.data.wa.gov.au/dataset/gnangara-jandakot-depth-to-groundwater-contours-2019-min) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Gnangara Jandakot Water Table Elevation (Contours) – 2019 Max (DWER-100)](https://catalogue.data.wa.gov.au/dataset/gnangara-jandakot-water-table-elevation-contours-2019-max) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Gnangara Jandakot Water Table Elevation (Contours) – 2019 Min (DWER-099)](https://catalogue.data.wa.gov.au/dataset/gnangara-jandakot-water-table-elevation-contours-2019-min) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Groundwater Salinity Statewide (DWER-026)](https://catalogue.data.wa.gov.au/dataset/groundwater-salinity-statewide) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Hardy Inlet Seagrass Survey - Cover (DWER-112)](https://catalogue.data.wa.gov.au/dataset/hardy-inlet-seagrass-survey-cover) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Hardy Inlet Seagrass Survey - Extent (DWER-111)](https://catalogue.data.wa.gov.au/dataset/hardy-inlet-seagrass-survey-extent) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Hardy Inlet Seagrass Survey - Points (DWER-110)](https://catalogue.data.wa.gov.au/dataset/hardy-inlet-seagrass-survey-points) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Hydrographic Catchments - Basins (DWER-027)](https://catalogue.data.wa.gov.au/dataset/hydrographic-catchments-basins) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Hydrographic Catchments - Catchments (DWER-028)](https://catalogue.data.wa.gov.au/dataset/hydrographic-catchments-catchments) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Hydrographic Catchments - Divisions (DWER-029)](https://catalogue.data.wa.gov.au/dataset/hydrographic-catchments-divisions) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Hydrographic Catchments - Subcatchments (DWER-030)](https://catalogue.data.wa.gov.au/dataset/hydrographic-catchments-subcatchments) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Hydrography, Linear (Hierarchy) (DWER-031)](https://catalogue.data.wa.gov.au/dataset/hydrography-linear-hierarchy) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Iron Staining Risk (DWER-032)](https://catalogue.data.wa.gov.au/dataset/iron-staining-risk) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [ISA Survey Boundaries (DWER-148)](https://catalogue.data.wa.gov.au/dataset/isa-survey-boundaries) (API, API ARCGIS SERVER FEATURE SERVICE, API ARCGIS SERVER MAP SERVICE, TXT; Custom (Government Use); updated 2026-09-27) - [ISA Survey Boundaries Quarantine (DWER-147)](https://catalogue.data.wa.gov.au/dataset/isa-survey-boundaries-quarantine) (API, API ARCGIS SERVER FEATURE SERVICE, API ARCGIS SERVER MAP SERVICE, TXT +1; Custom (Government Use); updated 2026-09-27) - [Kwinana - Atmospheric Waste Miscellaneous Areas (DWER-064)](https://catalogue.data.wa.gov.au/dataset/kwinana-atmospheric-waste-miscellaneous-areas-dwer-064) ("", API, API ARCGIS SERVER MAP SERVICE, FGDB +4; Custom (Active Acceptance); updated 2026-09-27) - [Kwinana - Atmospheric Waste Policy Boundary (DWER-065)](https://catalogue.data.wa.gov.au/dataset/kwinana-atmospheric-waste-policy-boundary-dwer-065) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +3; Custom (Active Acceptance); updated 2026-09-27) - [Leschenault Estuary Seagrass Survey - Cover (DWER-105)](https://catalogue.data.wa.gov.au/dataset/leschenault-estuary-seagrass-survey-cover) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Leschenault Estuary Seagrass Survey - Extent (DWER-106)](https://catalogue.data.wa.gov.au/dataset/leschenault-estuary-seagrass-survey-extent) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Leschenault Estuary Seagrass Survey - Points (DWER-104)](https://catalogue.data.wa.gov.au/dataset/leschenault-estuary-seagrass-survey-points) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [LiDAR Index External (DWER-045)](https://catalogue.data.wa.gov.au/dataset/lidar-index-external) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Native vegetation extent - parts of South West WA 2024 (DWER-146)](https://catalogue.data.wa.gov.au/dataset/native-vegetation-extent-parts-of-south-west-wa-2024) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +5; Custom (Active Acceptance); updated 2026-09-27) - [Offsets Register - Offsets (DWER-078)](https://catalogue.data.wa.gov.au/dataset/offsets-register-offsets) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +5; Custom (Active Acceptance); updated 2026-09-27) - [Offsets Register - Projects (DWER-079)](https://catalogue.data.wa.gov.au/dataset/offsets-register-projects) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +5; Custom (Active Acceptance); updated 2026-09-27) - [Oyster Harbour Seagrass Survey - Cover (DWER-109)](https://catalogue.data.wa.gov.au/dataset/oyster-harbour-seagrass-survey-cover) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Oyster Harbour Seagrass Survey - Extent (DWER-107)](https://catalogue.data.wa.gov.au/dataset/oyster-harbour-seagrass-survey-extent) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Oyster Harbour Seagrass Survey - Points (DWER-108)](https://catalogue.data.wa.gov.au/dataset/oyster-harbour-seagrass-survey-points) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Peel Inlet - Harvey Estuary (DWER-066)](https://catalogue.data.wa.gov.au/dataset/peel-inlet-harvey-estuary-dwer-066) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [PEOF Project Areas (DWER-125)](https://catalogue.data.wa.gov.au/dataset/pilbara-environmental-offset-fund-peof-projects) (API, API ARCGIS SERVER FEATURE SERVICE, API ARCGIS SERVER MAP SERVICE, FGDB +5; Custom (Government Use); updated 2026-09-27) - [Perth Metropolitan Stormwater Drainage - Pipe (DWER-089)](https://catalogue.data.wa.gov.au/dataset/perth-metropolitan-stormwater-drainage-pipe) (API, API ARCGIS SERVER FEATURE SERVICE, API ARCGIS SERVER MAP SERVICE, TXT +1; Custom (Government Use); updated 2026-09-27) - [Perth Metropolitan Stormwater Drainage – HEWalls (Head/End Walls) (DWER-093)](https://catalogue.data.wa.gov.au/dataset/perth-metropolitan-stormwater-drainage-hewalls-head-end-walls) (API, API ARCGIS SERVER FEATURE SERVICE, API ARCGIS SERVER MAP SERVICE, TXT +1; Custom (Government Use); updated 2026-09-27) - [Perth Metropolitan Stormwater Drainage – On-Site Disposal System Area (DWER-094)](https://catalogue.data.wa.gov.au/dataset/perth-metropolitan-stormwater-drainage-on-site-disposal-system-area) (API, API ARCGIS SERVER FEATURE SERVICE, API ARCGIS SERVER MAP SERVICE, TXT +1; Custom (Government Use); updated 2026-09-27) - [Perth Metropolitan Stormwater Drainage – Pits (DWER-090)](https://catalogue.data.wa.gov.au/dataset/perth-metropolitan-stormwater-drainage-pits) (API, API ARCGIS SERVER FEATURE SERVICE, API ARCGIS SERVER MAP SERVICE, TXT +1; Custom (Government Use); updated 2026-09-27) - [Perth Metropolitan Stormwater Drainage – Property Connection (DWER-092)](https://catalogue.data.wa.gov.au/dataset/perth-metropolitan-stormwater-drainage-perth-metro-property-connection) (API, API ARCGIS SERVER FEATURE SERVICE, API ARCGIS SERVER MAP SERVICE, TXT +1; Custom (Government Use); updated 2026-09-27) - [Perth Metropolitan Stormwater Drainage – Water Harvesting Devices (DWER-091)](https://catalogue.data.wa.gov.au/dataset/perth-metropolitan-stormwater-drainage-water-harvesting-devices) (API, API ARCGIS SERVER FEATURE SERVICE, API ARCGIS SERVER MAP SERVICE, TXT +1; Custom (Government Use); updated 2026-09-27) - [Princess Royal Harbour Seagrass Survey - Cover (DWER-131)](https://catalogue.data.wa.gov.au/dataset/princess-royal-harbour-seagrass-survey-cover) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Princess Royal Harbour Seagrass Survey - Extent (DWER-132)](https://catalogue.data.wa.gov.au/dataset/princess-royal-harbour-seagrass-survey-extent) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Princess Royal Harbour Seagrass Survey - Points (DWER-130)](https://catalogue.data.wa.gov.au/dataset/princess-royal-harbour-seagrass-survey-points) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Public Drinking Water Source Areas (DWER-033)](https://catalogue.data.wa.gov.au/dataset/public-drinking-water-source-areas) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Referral - Permit Application Not Required (DWER-117)](https://catalogue.data.wa.gov.au/dataset/referral-permit-application-not-required) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [RIWI Act, Groundwater Areas (DWER-034)](https://catalogue.data.wa.gov.au/dataset/riwi-act-groundwater-areas) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [RIWI Act, Rivers (DWER-036)](https://catalogue.data.wa.gov.au/dataset/riwi-act-rivers) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [RIWI Act, Surface Water Areas and Irrigation Districts (DWER-037)](https://catalogue.data.wa.gov.au/dataset/riwi-act-surface-water-areas-and-irrigation-districts) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Seawater Interface Depth Superficial Aq: Esperance Area Contours (DWER-134)](https://catalogue.data.wa.gov.au/dataset/seawater-interface-depth-superficial-aq-esperance-area-contours) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Seawater Interface Elev Superficial Aq – Cockburn Area Contours (DWER-133)](https://catalogue.data.wa.gov.au/dataset/seawater-interface-elevation-superficial-aquifer-cockburn-area-contours) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Seawater Interface Salinity Dist 10m Below Water Table: Esperance (DWER-135)](https://catalogue.data.wa.gov.au/dataset/seawater-interface-salinity-dist-10m-below-water-table-esperance) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Sprinkler Restrictions - Water Agencies (Water Use) Bylaws (DWER-044)](https://catalogue.data.wa.gov.au/dataset/sprinkler-restrictions-water-agencies-water-use-bylaws) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [State Climate Projections 20km - Max Temperature bias corrected (DWER-144)](https://catalogue.data.wa.gov.au/dataset/state-climate-projections-20km-max-temperature-bias-corrected) (API, API ARCGIS SERVER MAP SERVICE, CSV, FGDB +7; Custom (Active Acceptance); updated 2026-09-27) - [State Climate Projections 20km - Min Temperature bias corrected (DWER-143)](https://catalogue.data.wa.gov.au/dataset/state-climate-projections-20km-min-temperature-bias-corrected) (API, API ARCGIS SERVER MAP SERVICE, CSV, FGDB +7; Custom (Active Acceptance); updated 2026-09-27) - [State Climate Projections 20km - Rainfall bias corrected (DWER-142)](https://catalogue.data.wa.gov.au/dataset/state-climate-projections-20km-rainfall-bias-corrected) (API, API ARCGIS SERVER MAP SERVICE, CSV, FGDB +7; Custom (Active Acceptance); updated 2026-09-27) - [State Environment Policy Cockburn Protection Levels 2010 (DWER-068)](https://catalogue.data.wa.gov.au/dataset/state-environment-policy-cockburn-protection-levels-2010-dwer-068) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [State Environmental (Cockburn Sound) Policy Boundaries (DWER-058)](https://catalogue.data.wa.gov.au/dataset/cockburn-sound-management-council-boundary-dwer-058) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Statewide River Water Quality Assessment (DWER-038)](https://catalogue.data.wa.gov.au/dataset/statewide-river-water-quality-assessment) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Surface Water Management Areas (DWER-041)](https://catalogue.data.wa.gov.au/dataset/surface-water-management-areas) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Surface Water Management Subareas (DWER-042)](https://catalogue.data.wa.gov.au/dataset/surface-water-management-subareas) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [SWAN Bioplan Peel Sector 2010 (DWER-069)](https://catalogue.data.wa.gov.au/dataset/swan-bioplan-peel-sector-2010-dwer-069) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +3; Custom (Active Acceptance); updated 2026-09-27) - [SWAN Bioplan Regionally Significant Natural Areas 2010 (DWER-070)](https://catalogue.data.wa.gov.au/dataset/swan-bioplan-regionally-significant-natural-areas-2010-dwer-070) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +3; Custom (Active Acceptance); updated 2026-09-27) - [Swan Coastal Plain and Perth-Peel Native Vegetation Extent 2000 (DWER-136)](https://catalogue.data.wa.gov.au/dataset/swan-coastal-plain-and-perth-peel-native-vegetation-extent-2000) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +5; Custom (Active Acceptance); updated 2026-09-27) - [Swan Coastal Plain and Perth-Peel Native Vegetation Extent 2005 (DWER-137)](https://catalogue.data.wa.gov.au/dataset/swan-coastal-plain-and-perth-peel-native-vegetation-extent-2005) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +5; Custom (Active Acceptance); updated 2026-09-27) - [Swan Coastal Plain and Perth-Peel Native Vegetation Extent 2010 (DWER-138)](https://catalogue.data.wa.gov.au/dataset/swan-coastal-plain-and-perth-peel-native-vegetation-extent-2010) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +5; Custom (Active Acceptance); updated 2026-09-27) - [Swan Coastal Plain and Perth-Peel Native Vegetation Extent 2015 (DWER-139)](https://catalogue.data.wa.gov.au/dataset/swan-coastal-plain-and-perth-peel-native-vegetation-extent-2015) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +5; Custom (Active Acceptance); updated 2026-09-27) - [Swan Coastal Plain and Perth-Peel Native Vegetation Extent 2020 (DWER-140)](https://catalogue.data.wa.gov.au/dataset/swan-coastal-plain-and-perth-peel-native-vegetation-extent-2020) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +5; Custom (Active Acceptance); updated 2026-09-27) - [Swan Coastal Plain and Perth-Peel Native Vegetation Extent 2024 (DWER-141)](https://catalogue.data.wa.gov.au/dataset/swan-coastal-plain-and-perth-peel-native-vegetation-extent-2024) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +5; Custom (Active Acceptance); updated 2026-09-27) - [Urban Water Management Strategies and Plans (DWER-043)](https://catalogue.data.wa.gov.au/dataset/urban-water-management-strategies-and-plans) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Water Allocation Plans and Statements (DWER-086)](https://catalogue.data.wa.gov.au/dataset/water-allocation-plans-and-statements) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Water Demand Region Boundaries (DWER-002)](https://catalogue.data.wa.gov.au/dataset/water-demand-region-boundaries) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Waterways Conservation Act Management Areas (DWER-072)](https://catalogue.data.wa.gov.au/dataset/waterways-conservation-act-management-areas) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Western Swamp Tortoise Habitat (DWER-071)](https://catalogue.data.wa.gov.au/dataset/western-swamp-tortoise-habitat-dwer-071) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Wild Rivers (DWER-087)](https://catalogue.data.wa.gov.au/dataset/wild-rivers) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Wilson Inlet Seagrass Survey - Cover (DWER-114)](https://catalogue.data.wa.gov.au/dataset/wilson-inlet-seagrass-survey-cover) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Wilson Inlet Seagrass Survey - Extent (DWER-115)](https://catalogue.data.wa.gov.au/dataset/wilson-inlet-seagrass-survey-extent) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [Wilson Inlet Seagrass Survey - Points (DWER-113)](https://catalogue.data.wa.gov.au/dataset/wilson-inlet-seagrass-survey-points) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [WRIMS - Groundwater Areas (DWER-085)](https://catalogue.data.wa.gov.au/dataset/wrims-groundwater-areas) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [WRIMS - Groundwater Resources (DWER-084)](https://catalogue.data.wa.gov.au/dataset/wrims-groundwater-resources) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [WRIMS - Groundwater Subareas (DWER-083)](https://catalogue.data.wa.gov.au/dataset/wrims-groundwater-subareas) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [WRIMS - Surface Water Areas (DWER-082)](https://catalogue.data.wa.gov.au/dataset/wrims-surface-water-areas) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [WRIMS - Surface Water Resources (DWER-081)](https://catalogue.data.wa.gov.au/dataset/wrims-surface-water-resources) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [WRIMS - Surface Water Subareas (DWER-080)](https://catalogue.data.wa.gov.au/dataset/wrims-surface-water-subareas) (API, API ARCGIS SERVER MAP SERVICE, FGDB, GEOJSON +4; Custom (Active Acceptance); updated 2026-09-27) - [[RETIRED] FPM Map Index (DWER-023)](https://catalogue.data.wa.gov.au/dataset/fpm-map-index) (TXT, WMS; Custom (Active Acceptance); updated 2026-09-26) - [[RETIRED] FPM Special Development Condition Area (DWER-024)](https://catalogue.data.wa.gov.au/dataset/fpm-special-development-condition-area) (TXT, WMS; Custom (Active Acceptance); updated 2026-09-26) - [[RETIRED] IBSA Survey Details (DWER-118)](https://catalogue.data.wa.gov.au/dataset/ibsa-survey-details-dwer-118) (TXT, WMS; Custom (Government Use); updated 2026-09-26) - [Gnangara Jandakot Depth to Groundwater (Raster) – 2019 Max (DWER-098)](https://catalogue.data.wa.gov.au/dataset/gnangara-jandakot-depth-to-groundwater-raster-2019-max) (API, API ARCGIS SERVER MAP SERVICE, TXT, WMS; Custom (Active Acceptance); updated 2026-09-26) - [Gnangara Jandakot Depth to Groundwater (Raster) – 2019 Min (DWER-097)](https://catalogue.data.wa.gov.au/dataset/gnangara-jandakot-depth-to-groundwater-raster-2019-min) (API, API ARCGIS SERVER MAP SERVICE, TXT, WMS; Custom (Active Acceptance); updated 2026-09-26) - [Gnangara Jandakot Water Table Elevation (Raster) – 2019 Max (DWER-102)](https://catalogue.data.wa.gov.au/dataset/gnangara-jandakot-water-table-elevation-raster-2019-max) (API, API ARCGIS SERVER MAP SERVICE, TXT, WMS; Custom (Active Acceptance); updated 2026-09-26) - [Gnangara Jandakot Water Table Elevation (Raster) – 2019 Min (DWER-101)](https://catalogue.data.wa.gov.au/dataset/gnangara-jandakot-water-table-elevation-raster-2019-min) (API, API ARCGIS SERVER MAP SERVICE, TXT, WMS; Custom (Active Acceptance); updated 2026-09-26) - [Native Vegetation Statistics for Merredin, Katanning and Western Mallee IBRA sub-regions 2024](https://catalogue.data.wa.gov.au/dataset/native-vegetation-statistics-for-merredin-katanning-and-western-mallee-ibra-sub-regions-2024) (PDF, XLSX; Custom (Active Acceptance); updated 2026-09-19) - [Environmental Impact Assessments, Outcomes and Changes (EIAOC) (DWER-088)](https://catalogue.data.wa.gov.au/dataset/environmental-impact-assessments-outcomes-and-changes-eiaoc-dwer-088) (TXT; Custom (Active Acceptance); updated 2026-07-28) - [DWER Active Acceptance Licence Agreement](https://catalogue.data.wa.gov.au/dataset/dwer-active-acceptance-licence-agreement) (PDF; none stated; updated 2026-07-21) - [DWER Restricted Licence Agreement](https://catalogue.data.wa.gov.au/dataset/dwer-restricted-licence-agreement) (PDF; none stated; updated 2026-07-21) - [Swan Coastal Plain and Region Schemes 2024 Remnant Vegetation Statistics](https://catalogue.data.wa.gov.au/dataset/swan-coastal-plain-and-region-schemes-2024-remnant-vegetation-statistics) (PDF, XLSX; Custom (Active Acceptance); updated 2026-05-27) - [Climate Technical Information Factsheet](https://catalogue.data.wa.gov.au/dataset/climate-technical-information-factsheet) (PDF; none stated; updated 2026-04-23) - [Climate Data User Guide](https://catalogue.data.wa.gov.au/dataset/climate-data-user-guide) (PDF; none stated; updated 2025-11-11) - [Waste and recycling in Western Australia](https://catalogue.data.wa.gov.au/dataset/waste-and-recycling-in-western-australia) (PDF, XLSX; Custom (Active Acceptance); updated 2025-11-04) Full list: https://publicdata.au/wa/department-of-water-and-environmental-regulation/catalogue.json