West Coast Region Water Quality Objectives
Last updated on June 11, 2026Water quality objectives and reports for waterbodies in the West Coast Region of B.C.
Regions of Vancouver Island
Bamfield Inlet (West Vancouver Island)
Elk and Beaver Lakes (South Vancouver Island)
- Beaver and Elk Lakes Overview Report (PDF, 171KB)
- Beaver and Elk Lakes Technical Report (PDF, 1.7KB)
Chemainus River (South Vancouver Island)
China Creek (West Vancouver Island)
Comox Lake (Mid Vancouver Island)
- Comox Lake Overview Report (PDF, 656KB)
- Comox Lake Technical Report (PDF, 1.6MB)
- Comox Lake: Water Quality Objectives Attainment Report (2015 to 2016) (PDF, 848KB)
Cowichan Lake (South Vancouver Island)
- Cowichan Lake and Tributaries: Water Quality Objectives Attainment Report (2024) (PDF, 1.6MB)
- Cowichan Lake Overview Report (PDF, 274KB)
- Cowichan Lake Technical Report (PDF, 751KB)
- Cowichan Lake: Water Quality Objectives Attainment Report (2012 to 2014) (PDF, 1.8MB)
Cowichan and Koksilah Rivers (South Vancouver Island)
- Cowichan and Koksilah Rivers Water Quality Assessment and Objectives (PDF, 4.5MB)
- Cowichan and Koksilah Rivers Overview Report (PDF, 248KB)
- Cowichan and Koksilah Rivers Technical Report (PDF, 3.9MB)
- Cowichan and Koksilah Rivers Water Quality Objective Attainment Report (2012 to 2014) (PDF, 2MB)
- Cowichan and Koksilah Rivers Water Quality Objective Attainment Report (2019 to 2024) (PDF, 1.2MB)
Cowichan Bay (South Vancouver Island)
- Cowichan Bay and Tributaries Water Quality Objectives Attainment Report (2022) (PDF, 853KB)
- Cowichan Bay and Tributaries Water Quality Objectives (PDF, 401KB)
- Cowichan Bay and Tributaries Water Quality Assessment (PDF, 3MB)
Cusheon Lake, Maxwell Lake, St. Mary Lake, and Weston Lake (Salt Spring Island)
Englishman River (Mid Vancouver Island)
French Creek (Mid Vancouver Island)
Holland Creek (South Vancouver Island)
- Holland Creek and Stocking Lake Overview Report (PDF, 200KB)
- Holland Creek and Stocking Lake Technical Report (PDF, 3MB)
John Hart and McIvor Lakes (North Vancouver Island)
- John Hart Lake Community Watershed and McIvor Lake Overview Report (PDF, 897KB)
- John Hart Lake Community Watershed and McIvor Lake Technical Report (PDF, 2.1MB)
- John Hart Lake Community Watershed and McIvor Lake Attainment Report (PDF, 315KB)
Kemp Lake (South Vancouver Island)
- Kemp Lake Community Watershed Overview Report (PDF, 546KB)
- Kemp Lake Community Watershed Technical Report (PDF, 1.3MB)
- Kemp Lake: Water Quality Objectives Attainment Report (2016 to 2017) (PDF, 825KB)
Langford Lake (South Vancouver Island)
Little Qualicum River (Mid Vancouver Island)
McKelvie Creek (North Vancouver Island)
- McKelvie Creek Community Watershed Overview Report (PDF, 140KB)
- McKelvie Creek Community Watershed Technical Report (PDF, 716KB)
- McKelvie Creek Community Watershed Attainment Report (PDF, 592KB)
Mercantile Creek (West Vancouver Island)
- Mercantile Creek Community Watershed Overview Report (PDF, 492KB)
- Mercantile Creek Community Watershed Technical Report (PDF, 1.2MB)
- Mercantile Creek Community Watershed Attainment Report (PDF, 678KB)
Mill Bay (South Vancouver Island)
- Mill Bay and Tributaries Water Quality Objectives (PDF, 496KB)
- Mill Bay and Tributaries Water Quality Assessment (PDF, 2.5MB)
Newcastle Creek (North Vancouver Island)
- Newcastle Creek Community Watershed Overview Report (PDF, 494KB)
- Newcastle Creek Community Watershed Technical Report (PDF, 1.5MB)
- Newcastle Creek Community Watershed Attainment Report (PDF, 513KB)
Oyster River (Mid Vancouver Island)
- Oyster River Overview Report (PDF, 183KB)
- Oyster River Technical Report (PDF, 4.5MB)
- Oyster River Water Quality Objectives Attainment Report (PDF, 1.2MB)
Quatse Lake (North Vancouver Island)
Quinsam Lake (North Vancouver Island)
Shawnigan Lake (South Vancouver Island)
- Shawnigan Lake Overview Report (PDF, 179KB)
- Shawnigan Lake Technical Report (PDF, 729KB)
- Shawnigan Lake Water Quality Objectives Attainment Report (2006 to 2014) (PDF, 1.9MB)
- Shawnigan Lake: Water Quality Objectives Attainment Report (2015 to 2019) (PDF, 2.2MB)
Sooke Inlet, Harbour, Basin and Tributary Streams (South Vancouver Island)
- Sooke Inlet, Harbour, Basin, and Tributary Streams Water Quality Objectives (PDF, 740KB)
- Sooke Inlet, Harbour, Basin, and Tributary Streams Water Quality Assessment and Proposed Objectives Technical Report (PDF, 2.5MB)
Tsolum River (Mid Vancouver Island)
- Tsolum River Overview Report (PDF, 174KB)
- Tsolum River Technical Report (PDF, 5.4KB)
- Tsolum River Watershed Overview Report (PDF, 612KB)
- Tsolum River Watershed Technical Report (PDF, 2.6MB)
Tsulquate River (North Vancouver Island)
- Tsulquate River Community Watershed Overview Report (PDF, 813KB)
- Tsulquate River Community Watershed Technical Report (PDF, 3.1MB)
- Tsulquate River Community Watershed Attainment 2013 Report (PDF, 781KB)