| 100 Mile House | Chlorine | 100 Mile House Annual Drinking Water Report |
| 103 Mile | Chlorine | Cariboo Regional District 103 Mile Water System Annual Report |
| 108 Mile Ranch | Chlorine | Cariboo Regional District 108 Mile Water System Annual Report |
| Abbotsford (Abbotsford-Mission water system) | Chloramine | Abbotsford-Mission (Abbotsford) Annual Water Quality Report |
| Acadia (Langley Township well system) | Chlorine | Township of Langley (Acadia) Annual Water Quality Report |
| Agassiz (District of Kent water system) | None (untreated) | District of Kent (Agassiz) Drinking Water System Annual Report |
| Aldergrove (Aldergrove Water Treatment Plant) | Chlorine | Township of Langley (Aldergrove) Annual Water Quality Report |
| Alert Bay | None (untreated) | Village of Alert Bay Annual Report 2025 (Draft) and 2024 Annual Water Report |
| Alexis Creek | Chlorine | Cariboo Regional District Alexis Creek Water System Annual Report |
| Anglemont (CSRD) | Chlorine | Columbia Shuswap Regional District 2025 Utilities Annual Report |
| Anmore (Metro Vancouver, Coquitlam Lake supply) | Chlorine | Village of Anmore Annual Water Quality Report |
| Arbutus Mountain Estates (CVRD) | Chlorine | CVRD (Arbutus Mountain Estates) Drinking Water System Annual Report |
| Arbutus Ridge (CVRD) | Chlorine | CVRD (Arbutus Ridge) Drinking Water System Annual Report |
| Armstrong | Chlorine | City of Armstrong Water System 2025 Annual Report |
| Ashcroft | Chlorine | Village of Ashcroft 2024 Annual Water Report |
| Bald Mountain (CVRD) | Chlorine | CVRD (Bald Mountain) Drinking Water System Annual Report |
| Balfour (RDCK) | Chlorine | RDCK Balfour Water System Annual Report of Monitoring |
| Bamfield | Chlorine | ACRD Bamfield Water System Annual Report |
| Barriere | Chlorine | District of Barriere Annual Water Report |
| Beaver Creek (Alberni-Clayoquot) | Chlorine | ACRD Beaver Creek Water System Annual Report |
| Beaver Falls | None (untreated) | Village of Montrose Annual Report of Water Monitoring |
| Belcarra (Metro Vancouver, Seymour-Capilano supply) | Chlorine | Village of Belcarra Drinking Water Quality Annual Report |
| Bell Acres (FVRD) | None (untreated) | FVRD Bell Acres Water System Annual Report |
| Benjamin | None (untreated) | Cariboo Regional District Benjamin Water System 2025 Annual Report |
| Black Creek / Oyster Bay (CVRD) | Chlorine | CVRD (Black Creek/Oyster Bay) Annual Drinking Water Report |
| Black Pines (TNRD) | Chlorine | TNRD Black Pines Community Water System |
| Blue River (TNRD) | Chlorine | TNRD Blue River Community Water System |
| Boston Bar (FVRD) | Chlorine | FVRD Boston Bar Water System Annual Report |
| Bowen Island (Bluewater Park system) | Chlorine | Bowen Island Municipality Drinking Water Quality Annual Report |
| Bowen Island (Bowen Bay system) | Chlorine | Bowen Island Municipality Drinking Water Quality Annual Report |
| Bowen Island (Cove Bay system) | Chlorine | Bowen Island Municipality Drinking Water Quality Annual Report |
| Bowen Island (Eagle Cliff system) | Chlorine | Bowen Island Municipality Drinking Water Quality Annual Report |
| Bowen Island (Hood Point system) | Chlorine | Bowen Island Municipality Drinking Water Quality Annual Report |
| Bowen Island (King Edward Bay system) | Chlorine | Bowen Island Municipality Drinking Water Quality Annual Report |
| Bowen Island (Tunstall Bay system) | Chlorine | Bowen Island Municipality Drinking Water Quality Annual Report |
| Britannia Beach (SLRD) | Chlorine | SLRD Britannia Beach Water System Operations and Maintenance RFP |
| Burnaby (Metro Vancouver, Seymour-Capilano supply) | Chlorine | City of Burnaby Drinking Water Quality Annual Report |
| Burns Lake | Chlorine | Village of Burns Lake Utilities (Water) |
| Burnum (CVRD) | Chlorine | CVRD (Burnum) Drinking Water System Annual Report |
| Burton | None (untreated) | RDCK Burton Water System 2026 Customer Update |
| Cache Creek | Chlorine | Village of Cache Creek 2025 Annual Report (Draft) |
| Campbell River | Chlorine | City of Campbell River Key Treated Drinking Water Parameters |
| Canal Flats | None (untreated) | Village of Canal Flats Drinking Water Report 2025 |
| Canim Lake | Chlorine | Cariboo Regional District Canim Lake Water System Annual Report |
| Carlton (CVRD) | Chlorine | CVRD (Carlton) Drinking Water System Annual Report |
| Castlegar | Chlorine | City of Castlegar Annual Water Quality Report |
| Cedar (North Cedar Improvement District) | Chlorine | North Cedar Improvement District Annual Drinking Water Report |
| Cedar Heights (CSRD) | Chlorine | Columbia Shuswap Regional District 2025 Utilities Annual Report |
| Central Saanich (Greater Victoria Water Supply) | Chloramine | CRD Greater Victoria Drinking Water Quality Annual Report |
| Chase | Chlorine | Village of Chase Annual Water Report |
| Chemainus | Chlorine | North Cowichan (Chemainus) Water Quality Report |
| Cherry Point Estates (CVRD) | Chlorine | CVRD (Cherry Point Estates) Drinking Water System Annual Report |
| Chetwynd | Chlorine | District of Chetwynd Community Water System Annual Report |
| Chilliwack | Chlorine | Chilliwack Annual Water Quality Report |
| Clearwater (Clearwater River wells) | Chlorine | District of Clearwater Annual Water System Report |
| Clearwater (Russell Creek source) | Chlorine | District of Clearwater Annual Water System Report |
| Clinton | Chlorine | Village of Clinton 2024 Annual Water Report |
| Coal Harbour (RDMW) | Chlorine | Coal Harbour (RDMW) Drinking Water System Annual Report |
| Cobble Hill (Cobble Hill Improvement District) | None (untreated) | Cobble Hill Improvement District 2026 AGM Minutes |
| Coldstream (Greater Vernon Water, Kalamalka Lake source) | Chlorine | Greater Vernon Water (Coldstream) 2026 Water Quality Monitoring Program |
| Colwood (Greater Victoria Water Supply) | Chloramine | CRD Greater Victoria Drinking Water Quality Annual Report |
| Comox (Comox Valley Water System) | Chlorine | CVRD (Comox Valley Water System) Annual Drinking Water Report |
| Copperside Estates | Chlorine | RDKS Copperside Water Engineering and Acquisition Assessment (Tetra Tech) |
| Coquitlam (Metro Vancouver, Coquitlam Lake supply) | Chlorine | City of Coquitlam Annual Drinking Water Quality Report |
| Courtenay (Comox Valley Water System) | Chlorine | CVRD (Comox Valley Water System) Annual Drinking Water Report |
| Cove Cay (SCRD) | Chlorine | SCRD Cove Cay Water System Backgrounder |
| Cowichan Bay (Cowichan Bay Waterworks District) | Chlorine | Cowichan Bay Waterworks District Drinking Water System Annual Report |
| Cranbrook | Chlorine | Cranbrook Annual Water Report |
| Creston | Chlorine | Creston Annual Water Report |
| Crofton | Chlorine | North Cowichan (Crofton) Water Quality Report |
| Cultus Lake / Columbia Valley (FVRD Cultus Lake Integrated system) | Chlorine | FVRD Cultus Lake Integrated Water System Annual Report |
| Cumberland | Chlorine | Cumberland Drinking Water System Annual Report |
| D'Arcy (SLRD) | None (untreated) | SLRD D'Arcy Water System Chlorination Treatment Notice |
| Dawson Creek | Chlorine | Dawson Creek Drinking Water Quality Annual Report |
| Decourcey (RDN) | Chlorine | RDN (Decourcey) Water Service Area Annual Report |
| Deep Bay (Deep Bay Improvement District) | None (untreated) | Deep Bay Improvement District Annual Water System Report |
| Del Oro (TNRD) | Chlorine | TNRD Del Oro Community Water System |
| Delcliffe | Chlorine | RDNO Delcliffe Water Utility Water Quality Report (September 2026) |
| Delta (Metro Vancouver, Seymour-Capilano supply) | Chlorine | City of Delta Drinking Water Quality Report (Appendices) |
| Delta (North Delta, Watershed Park well zone) | Chlorine | Delta Water Quality Annual Report |
| Deroche (FVRD) | None (untreated) | FVRD Deroche Water System Annual Report |
| Dewdney (FVRD) | Chloramine | FVRD Dewdney Water System Annual Report |
| Dogwood Ridge (CVRD) | Chlorine | CVRD (Dogwood Ridge) Drinking Water System Annual Report |
| Dogwood Valley (FVRD) | Chlorine | FVRD Dogwood Valley Water System Annual Report |
| Douglas Hill (CVRD) | Chlorine | CVRD (Douglas Hill) Drinking Water System Annual Report |
| Duhamel | None (untreated) | RDCK Duhamel Water System 2026 Customer Update |
| Duncan | Chlorine | Duncan Key Drinking Water Parameters |
| Eagle Bay | Chlorine | Columbia Shuswap Regional District Utilities Annual Report |
| East Kawkawa Lake | None (untreated) | District of Hope Water Quality Monitoring Report |
| East Sooke (Greater Victoria Water Supply) | Chloramine | CRD Greater Victoria Drinking Water Quality Annual Report |
| Eastbourne, Keats Island (SCRD) | Chlorine | SCRD Eastbourne Water System Background Information |
| Edgewater (RDEK) | Chlorine | RDEK Annual Water Systems Report |
| Edgewood | None (untreated) | RDCK Edgewood Water System 2026 Customer Update |
| Egmont (SCRD) | Chlorine | SCRD Egmont Water System Backgrounder |
| Elkford | Chlorine | Elkford Drinking Water Quality Annual Report |
| Elko | None (untreated) | RDEK Annual Water Systems Report |
| Elphinstone (SCRD Chapman Creek system) | Chlorine | SCRD Chapman Creek Water Treatment Plant Process and Water System Background |
| Enderby | Chlorine | Enderby Drinking Water Annual Report |
| Erickson (RDCK, Arrow Creek system) | Chlorine | RDCK Arrow Creek/Erickson Water System Annual Report of Monitoring |
| Esquimalt (Greater Victoria Water Supply) | Chloramine | CRD Greater Victoria Drinking Water Quality Annual Report |
| Evergreen Estates (TNRD) | Chlorine | TNRD Evergreen Estates Community Water System |
| Falcon Ridge (RDCO) | Chlorine | Regional District of Central Okanagan (Falcon Ridge) Small Water Systems Drinking Water Annual Report |
| Falkland (CSRD) | Chlorine | Columbia Shuswap Regional District 2025 Utilities Annual Report |
| Faulder (RDOS) | Chlorine | RDOS Faulder Annual Water Quality Report |
| Fauquier | Chlorine | RDCK Fauquier Water System 2026 Customer Update |
| Fern Ridge (CVRD) | Chlorine | CVRD (Fern Ridge) Drinking Water System Annual Report |
| Fernie | Chlorine | Fernie Annual Drinking Water Report |
| Forest Grove | None (untreated) | Cariboo Regional District Forest Grove Water System Annual Report |
| Fort Fraser | Chlorine | Regional District of Bulkley-Nechako Fort Fraser Water and Sewer |
| Fort St. James | None (untreated) | District of Fort St. James 2025 Annual Water System Report |
| Fort St. John | Chlorine | Fort St. John Water Treatment (City web page) |
| French Creek (RDN) | Chlorine | RDN (French Creek) Water Service Area Annual Report |
| Fruitvale (Beaver Valley Water Service) | Chlorine | Regional District of Kootenay Boundary (Beaver Valley Water System) Water Services |
| Furry Creek (SLRD) | Chlorine | SLRD Furry Creek Water System Operations and Maintenance RFP |
| Galena Shores | Chlorine | Columbia Shuswap Regional District Utilities Annual Report |
| Galiano Island (Sticks Allison water system) | Chlorine | CRD Sticks Allison Water System Annual Report |
| Gallagher Lake | Chlorine | RDOS Gallagher Lake Water System Annual Report |
| Garden Bay / Irvines Landing (SCRD North Pender Harbour system) | Chlorine | SCRD North Pender Harbour Water System Backgrounder |
| Gateway | Chlorine | Cariboo Regional District Gateway Water System Annual Report |
| Gibsons (Zone 3) | Chlorine | Gibsons Annual Drinking Water Report |
| Gibsons (Zones 1 and 2 - Aquifer 560 wells) | None (untreated) | Gibsons Annual Drinking Water Report |
| Golden | None (untreated) | Town of Golden Integrated Water Strategy |
| Grand Forks | Chlorine | Grand Forks Annual Water Report |
| Granisle | Chlorine | Village of Granisle Annual Drinking Water Report |
| Greenwood | None (untreated) | Email confirmation from the City of Greenwood (Dec. 2025) |
| Grindrod | Chlorine | RDNO Grindrod Water Water Quality Report (May 2026) |
| Halfmoon Bay (SCRD Chapman Creek system) | Chlorine | SCRD Chapman Creek Water Treatment Plant Process and Water System Background |
| Harrison Highlands | None (untreated) | District of Kent (Harrison Highlands) Drinking Water System Annual Report |
| Harrison Hot Springs | Chlorine | Village of Harrison Hot Springs Water Treatment Plant Master Plan |
| Hatzic Prairie (FVRD) | Chlorine | FVRD Hatzic Prairie Water System Annual Report |
| Hedley | None (untreated) | Hedley Improvement District Water System |
| Highlands (Greater Victoria Water Supply) | Chloramine | CRD Greater Victoria Drinking Water Quality Annual Report |
| Holland Creek (RDEK) | Chlorine | RDEK Annual Water Systems Report |
| Honeymoon Bay (CVRD) | Chlorine | CVRD (Honeymoon Bay) Drinking Water System Annual Report |
| Hope | None (untreated) | District of Hope Water Quality Monitoring Report |
| Hope Airpark (FVRD) | None (untreated) | FVRD Hope Airpark Water System Annual Report |
| Horse Lake | Chlorine | Cariboo Regional District Horse Lake Water System Annual Report |
| Houston | Chlorine | District of Houston 2025 Annual Water Report |
| Hudson's Hope | Chlorine | Hudson's Hope Community Water System Annual Report |
| Invermere | Chlorine | Invermere Water Treatment and Distribution Annual Report |
| Kaleden (Kaleden Irrigation District) | Chlorine | Kaleden Irrigation District Water Quality Facts |
| Kamloops | Chlorine | City of Kamloops Drinking Water Annual Report |
| Kaslo | Chlorine | Village of Kaslo 2025 Annual Water System Report |
| Kawkawa Lake (District of Hope 138 Zone) | Chlorine | District of Hope Water Quality Monitoring Report |
| Kelowna (Black Mountain Irrigation District) | Chlorine | Black Mountain Irrigation District Monthly IHA Water Report |
| Kelowna (City of Kelowna water utility) | Chlorine | City of Kelowna Annual Water Report |
| Kelowna (Glenmore-Ellison Improvement District) | Chlorine | Glenmore-Ellison Improvement District Annual Water Quality Report |
| Kelowna (Rutland Waterworks District) | Chlorine | Rutland Waterworks District Water System Annual Report |
| Keremeos (Keremeos Irrigation District) | None (untreated) | Keremeos Irrigation District FAQ |
| Kerry Village (CVRD) | Chlorine | CVRD (Kerry Village) Drinking Water System Annual Report |
| Killiney Beach (RDCO) | Chlorine | Regional District of Central Okanagan (Killiney Beach) Large Water Systems Drinking Water Annual Report |
| Kimberley | Chlorine | City of Kimberley Drinking Water Report |
| Kitimat | Chlorine | District of Kitimat Annual Water Report |
| Lac La Hache | Chlorine | Cariboo Regional District Lac La Hache Water System Annual Report |
| Ladysmith | Chlorine | Ladysmith Arbutus Water Treatment Plant Monthly Report |
| Lake Country (Beaver Lake / Vernon Creek system) | Chlorine | District of Lake Country Water Operations 2025 Annual Report |
| Lake Country (Coral Beach system) | Chlorine | District of Lake Country Water Operations 2025 Annual Report |
| Lake Country (Kalamalka Lake system) | Chlorine | District of Lake Country Water Operations 2025 Annual Report |
| Lake Country (Lake Pine system) | Chlorine | District of Lake Country Water Operations 2025 Annual Report |
| Lake Country (Okanagan Lake system) | Chlorine | District of Lake Country Water Operations 2025 Annual Report |
| Lake Country (Oyama Lake system) | Chlorine | District of Lake Country Water Operations 2025 Annual Report |
| Lake Cowichan | Chlorine | Town of Lake Cowichan Water Treatment Plant Update |
| Lake Errock (FVRD) | None (untreated) | FVRD Lake Errock Water System Annual Report |
| Lake of the Woods (Hope area) | None (untreated) | District of Hope Water Quality Monitoring Report |
| Lakeshore | Chlorine | RDOS Lakeshore Water System Assessment Report |
| Lambourn Estates (CVRD) | Chlorine | CVRD (Lambourn Estates) Drinking Water System Annual Report |
| Langdale (SCRD) | Chlorine | SCRD Langdale Water System Background Information |
| Langford (Greater Victoria Water Supply) | Chloramine | CRD Greater Victoria Drinking Water Quality Annual Report |
| Langley | Chlorine | Langley City Water Quality Annual Report |
| Langley City (Metro Vancouver, Coquitlam Lake supply) | Chlorine | City of Langley Water Quality Annual Report |
| Langley Township (Metro Vancouver, Coquitlam Lake supply) | Chlorine | Township of Langley Water Quality Report |
| Lantzville | Chlorine | Lantzville Annual Water Report |
| Lexington | Chlorine | Cariboo Regional District Lexington Water System 2024 Annual Report |
| Lillooet | Chlorine | District of Lillooet Annual Water Report |
| Lions Bay | Chlorine | Lions Bay Annual Report on Drinking Water Quality |
| Lister (RDCK) | Chlorine | RDCK Lister Water System Annual Report of Monitoring |
| Logan Lake | None (untreated) | District of Logan Lake Annual Water Report |
| Loon Lake (TNRD) | Chlorine | TNRD Loon Lake Community Water System |
| Lucas Road (Castlegar supply) | Chlorine | RDCK Lucas Road Water System 2026 Customer Update |
| Lumby | Chlorine | Village of Lumby Water Utility |
| Lytton | Chlorine | Village of Lytton Community Water System 2024 Annual Water Report |
| Mabel Lake | Chlorine | RDNO Mabel Lake Water Utility Water Quality Report (May 2026) |
| MacArthur Reedman | Chlorine | Columbia Shuswap Regional District Utilities Annual Report |
| Mackenzie | None (untreated) | District of Mackenzie Water System Annual Report |
| Mackenzie (Gantahaz Subdivision) | Chlorine | District of Mackenzie (Gantahaz) Water System Annual Report |
| Madeira Park (SCRD South Pender Harbour system) | Chlorine | SCRD South Pender Harbour Water System Backgrounder |
| Malahat Forest (CVRD) | Chlorine | CVRD (Malahat Forest) Drinking Water System Annual Report |
| Maple Mission (TNRD) | Chlorine | TNRD Maple Mission Community Water System |
| Maple Ridge (Metro Vancouver, Coquitlam Lake supply) | Chlorine | City of Maple Ridge Drinking Water Quality Report |
| Mayne Island (Skana water system) | Chlorine | CRD Skana Water System Annual Report |
| Mayne Island (Surfside Park Estates water system) | Chlorine | CRD Surfside Water System Annual Report |
| McBride | Chlorine | Village of McBride Annual Water System Report |
| McDonald Creek (Kaslo supply) | Chlorine | RDCK McDonald Creek Water System |
| Melrose Terrace (RDN) | Chlorine | RDN (Melrose Terrace) Water Service Area Annual Report |
| Merritt | Chlorine | City of Merritt Water System |
| Mesachie Lake (CVRD) | Chlorine | CVRD (Mesachie Lake) Drinking Water System Annual Report |
| Metchosin (Greater Victoria Water Supply) | Chloramine | CRD Greater Victoria Drinking Water Quality Annual Report |
| Mill Bay (Mill Bay Waterworks District) | Chlorine | Mill Bay Waterworks District Strategic Plan 2023-2025 |
| Millstream (Alberni-Clayoquot) | Chlorine | ACRD Millstream Water System Annual Report |
| Missezula Lake (RDOS) | Chlorine | RDOS Missezula Lake Annual Water Quality Report |
| Mission (Abbotsford-Mission water system) | Chloramine | Abbotsford-Mission (Mission) Annual Water Quality Report |
| Montrose | Chlorine | Village of Montrose Annual Report of Water Monitoring |
| Morris Valley (FVRD) | None (untreated) | FVRD Morris Valley Bulk Water System Annual Report |
| Moyie (RDEK) | None (untreated) | RDEK Annual Water Systems Report |
| Myrtle Pond (Powell River area) | Chlorine | qathet Regional District Myrtle Pond Water System 2025 Drinking Water System Annual Report |
| Nakusp (lower zone, wells) | Chlorine | Village of Nakusp Annual Water Report |
| Nakusp (upper zone, creek treatment plant) | Chlorine | Village of Nakusp Annual Water Report |
| Nanaimo | Chlorine | City of Nanaimo Annual Water Quality Report |
| Nanoose Bay (RDN) | Chlorine | RDN (Nanoose Bay Peninsula) Water Service Area Annual Report |
| Naramata (RDOS) | Chlorine | RDOS Naramata Annual Water Quality Report |
| Nelson | Chlorine | City of Nelson Annual Drinking Water Report |
| New Denver | None (untreated) | Village of New Denver 2025 Annual Water Report |
| New Hazelton | Chlorine | District of New Hazelton Water System Annual Report 2025 |
| New Westminster (Metro Vancouver) | Chlorine | City of New Westminster Water Quality Monitoring Report |
| North Bend (FVRD) | Chlorine | FVRD North Bend Water System Annual Report |
| North Cowichan South End / Maple Bay (Boys Road wells) | Chlorine | North Cowichan (South End) Water Quality Report |
| North Saanich (Greater Victoria Water Supply) | Chloramine | CRD Greater Victoria Drinking Water Quality Annual Report |
| North Vancouver (Metro Vancouver, Seymour-Capilano supply) | Chlorine | City of North Vancouver Drinking Water Quality Annual Report |
| Oak Bay (Greater Victoria Water Supply) | Chloramine | CRD Greater Victoria Drinking Water Quality Annual Report |
| Okanagan Falls (RDOS - Lower Zone) | Chlorine | RDOS Okanagan Falls Annual Water Quality Report |
| Okanagan Falls (RDOS - Upper Zone) | None (untreated) | RDOS Okanagan Falls Annual Water Quality Report |
| Olalla (RDOS) | Chlorine | RDOS Olalla Annual Water Quality Report |
| Oliver | Chlorine | Town of Oliver Annual Water Report |
| Oliver (Rural North system, Buchanan well) | Chlorine | Town of Oliver Annual Water Report |
| Osoyoos | Chlorine | Town of Osoyoos Annual Water System Report |
| Parksville | Chlorine | City of Parksville Annual Water Report |
| Peachland | Chlorine | District of Peachland Annual Drinking Water Report |
| Pemberton | Chlorine | Village of Pemberton Annual Water Report |
| Pender Island (Magic Lake Estates water system) | Chlorine | CRD Magic Lake Estates Water and Sewer System Annual Report |
| Penticton | Chlorine | City of Penticton Water Treatment Plant Annual Report |
| Pinecrest Estates (SLRD) | Chlorine | SLRD Pinecrest Estates Water Quality Advisory |
| Pitt Meadows (Metro Vancouver, Coquitlam Lake supply) | Chlorine | City of Pitt Meadows Drinking Water Quality Report |
| Port Alberni | Chlorine | City of Port Alberni Finished Water Quality Parameters |
| Port Alice | None (untreated) | Village of Port Alice Annual Report for Drinking Water System |
| Port Clements | Chlorine | Village of Port Clements 2025 Annual Report |
| Port Coquitlam (Metro Vancouver, Coquitlam Lake supply) | Chlorine | City of Port Coquitlam Annual Drinking Water Quality Report |
| Port Edward | Chlorine | District of Port Edward 2021 Water Quality Report |
| Port Hardy | Chlorine | District of Port Hardy Water Treatment Plant Annual Report |
| Port McNeill | None (untreated) | Town of Port McNeill 2020 Drinking Water Annual Report |
| Port Moody (Metro Vancouver, Coquitlam Lake supply) | Chlorine | City of Port Moody Annual Water Quality Report |
| Port Renfrew | Chlorine | CRD Port Renfrew Utility System Annual Report |
| Pouce Coupe (Dawson Creek water system) | Chlorine | City of Dawson Creek (Pouce Coupe) Drinking Water Quality Annual Report |
| Powell River | Chlorine | Haslam Lake Water Treatment (Serving Powell River) Water System Extension Feasibility Study |
| Prince George (main system, Nechako wells) | Chlorine | City of Prince George Annual Water System Report |
| Prince George (PW652 system) | Chlorine | City of Prince George Annual Water System Report |
| Prince Rupert | Chlorine | City of Prince Rupert Annual Water Report |
| Princeton | Chlorine | Town of Princeton 2021 Annual Water Report |
| Pritchard (TNRD) | Chlorine | TNRD Pritchard Community Water System |
| Qualicum Beach | Chlorine | Town of Qualicum Beach Annual Water Report |
| Quesnel | None (untreated) | City of Quesnel Annual Drinking Water Quality Monitoring Report |
| Radium Hot Springs | Chlorine | Village of Radium Hot Springs Annual Drinking Water Report |
| Revelstoke | Chlorine | City of Revelstoke 2025 Annual Water Report |
| Revelstoke (Big Eddy system) | Chlorine | City of Revelstoke 2025 Annual Water Report |
| Richmond (Metro Vancouver, Seymour-Capilano supply) | Chlorine | City of Richmond Water Quality and Conservation Report |
| Riondel (RDCK) | Chlorine | RDCK Riondel Water System Annual Report of Monitoring |
| River's Edge (RDN Englishman River community water) | Chlorine | RDN (River's Edge) Water Service Area Annual Report |
| Roberts Creek (SCRD Chapman Creek system) | Chlorine | SCRD Chapman Creek Water Treatment Plant Process and Water System Background |
| Rockwell Bay | None (untreated) | District of Kent (Rockwell Bay) Drinking Water System Annual Report |
| Rossland | Chlorine | City of Rossland Water Operations Annual Report |
| Royston (CVRD) | Chlorine | CVRD (Royston) Annual Drinking Water Report |
| Rushmere | Chlorine | RDEK Annual Water Systems Report |
| Saanich (Greater Victoria Water Supply) | Chloramine | CRD Greater Victoria Drinking Water Quality Annual Report |
| Sage Mesa (RDOS) | Chlorine | RDOS Sage Mesa Annual Water Quality Report |
| Salmo | None (untreated) | Village of Salmo Aquifer Health (Water Smart Salmo) |
| Salmon Arm (East Canoe Creek / Metford Dam source) | Chlorine | City of Salmon Arm Water Quality Report 2025 |
| Salmon Arm (Shuswap Lake source) | Chlorine | City of Salmon Arm Water Quality Report 2025 |
| Salt Spring Island (Beddis water system) | Chlorine | CRD Beddis Water Service Annual Report |
| Salt Spring Island (Cedar Lane water system) | Chlorine | CRD Cedar Lane Water Service Annual Report |
| Salt Spring Island (Cedars of Tuam water system) | Chlorine | CRD Cedars of Tuam Water Service Annual Report |
| Salt Spring Island (Fernwood water system) | Chlorine | CRD Fernwood and Highland Water Service Annual Report |
| Salt Spring Island (Fulford water system) | Chlorine | CRD Fulford Water Service Annual Report |
| Salt Spring Island (Highland water system) | Chlorine | CRD Fernwood and Highland Water Service Annual Report |
| Saltair (CVRD) | Chlorine | CVRD (Saltair) Drinking Water System Annual Report |
| San Pareil (RDN) | Chlorine | RDN (San Pareil) Water Service Area Annual Report |
| Sanca | None (untreated) | RDCK Sanca Water System 2026 Customer Update |
| Saratoga | Chlorine | Columbia Shuswap Regional District Utilities Annual Report |
| Satellite Park (CVRD) | Chlorine | CVRD (Satellite Park) Drinking Water System Annual Report |
| Saturna Island (Lyall Harbour / Boot Cove water system) | Chlorine | CRD Lyall Harbour/Boot Cove Water Service Annual Report |
| Savona (TNRD) | Chlorine | TNRD Savona Community Water System |
| Scotch Creek | Chlorine | Columbia Shuswap Regional District Utilities Annual Report |
| Sechelt (SCRD Chapman Creek system) | Chlorine | SCRD Chapman Creek Water Treatment Plant Process and Water System Background |
| Shawnigan Lake North (CVRD) | Chlorine | CVRD (Shawnigan Lake North) Drinking Water System Annual Report |
| Shawnigan Village (CVRD) | Chlorine | CVRD (Shawnigan Village) Drinking Water System Annual Report |
| Shell Beach (CVRD) | Chlorine | CVRD (Shell Beach) Drinking Water System Annual Report |
| Shellwood (CVRD) | Chlorine | CVRD (Shellwood) Drinking Water System Annual Report |
| Sicamous | Chlorine | District of Sicamous Annual Water System Report |
| Sidney (Greater Victoria Water Supply) | Chloramine | CRD Greater Victoria Drinking Water Quality Annual Report |
| Silver Creek (District of Hope) | None (untreated) | District of Hope Water Quality Monitoring Report |
| Silver Star (RDNO) | Chlorine | RDNO Silver Star Water Quality Report (April 2026) |
| Sion (Grand Forks area) | None (untreated) | Sion Improvement District FAQ |
| Skaha Estates | Chlorine | RDOS Skaha Estates Boil Water Notice Reminder (Oct 2025) |
| Smithers | None (untreated) | Town of Smithers Annual Water Public Report |
| Soames Point (SCRD) | Chlorine | SCRD Chapman Water System Backgrounder |
| Sointula | None (untreated) | Sointula Waterworks District - Our Water |
| Sooke (Greater Victoria Water Supply) | Chloramine | CRD Greater Victoria Drinking Water Quality Annual Report |
| Sorrento (CSRD) | Chlorine | Columbia Shuswap Regional District 2025 Utilities Annual Report |
| South Hazelton | Chlorine | Regional District of Kitimat-Stikine South Hazelton Water System |
| South Slocan | Chlorine | RDCK South Slocan Water System 2026 Customer Update |
| Sparwood | None (untreated) | District of Sparwood Water System Services |
| Spences Bridge (TNRD) | Chlorine | TNRD Spences Bridge Community Water System |
| Spur Valley | Chlorine | RDEK Annual Water Systems Report |
| Squamish | Chlorine | District of Squamish Drinking Water Quality Report |
| Star Place / Trepanier (RDCO Dietrich water system) | Chlorine | Regional District of Central Okanagan (Dietrich) Small Water Systems Drinking Water Annual Report |
| Stewart | None (untreated) | District of Stewart 2023 Community Water System Annual Report |
| Summerland | Chlorine | District of Summerland Drinking Water Quality Annual Report |
| Sun Peaks | Chlorine | Sun Peaks Mountain Resort Municipality Annual Water Report |
| Sunset Ranch (RDCO) | Chlorine | Regional District of Central Okanagan (Sunset Ranch) Large Water Systems Drinking Water Annual Report |
| Surfside (RDN) | Chlorine | RDN (Surfside) Water Service Area Annual Report |
| Surrey (Metro Vancouver) | Chlorine | City of Surrey Water System Annual Report |
| Tahsis | Chlorine | Village of Tahsis 2025 Water Quality Monitoring Memo |
| Telkwa | Chlorine | Village of Telkwa Community Water System Annual Report |
| Terrace | Chlorine | City of Terrace Annual Water System Report |
| Thornhill | None (untreated) | RDKS Thornhill Community Water System Annual Report |
| Tofino | Chlorine | District of Tofino Water Master Plan |
| Trail | Chlorine | Trail Public Utilities Water Quality Report |
| Tsawwassen (Metro Vancouver, Seymour-Capilano supply) | Chlorine | City of Delta (Tsawwassen) Drinking Water Quality Report (Appendices) |
| Tumbler Ridge | Chlorine | District of Tumbler Ridge 2024 Annual Water Report |
| Ucluelet | Chlorine | District of Ucluelet Water System Facts Sheet |
| Union Bay (CVRD) | Chlorine | CVRD (Union Bay) Annual Drinking Water Report |
| Upper Fintry / Shalal Road / Valley of the Sun (RDCO) | Chlorine | Regional District of Central Okanagan (Upper Fintry) Small Water Systems Drinking Water Annual Report |
| Valemount | Chlorine | Village of Valemount 2025 Community Water Report |
| Vancouver (Metro Vancouver, Seymour-Capilano supply) | Chlorine | City of Vancouver Waterworks Utility Annual Report |
| Vanderhoof | Chlorine | District of Vanderhoof 2018 Annual Water Report |
| Vavenby (TNRD) | Chlorine | TNRD Vavenby Community Water System |
| Vernon (Greater Vernon Water, Duteau Creek source) | Chlorine | Greater Vernon Water (Vernon) 2026 Water Quality Monitoring Program |
| Vernon (Greater Vernon Water, Kalamalka Lake source) | Chlorine | Greater Vernon Water (Vernon) 2026 Water Quality Monitoring Program |
| Victoria (Greater Victoria Water Supply) | Chloramine | CRD Greater Victoria Drinking Water Quality Annual Report |
| View Royal (Greater Victoria Water Supply) | Chloramine | CRD Greater Victoria Drinking Water Quality Annual Report |
| Walhachin (TNRD) | Chlorine | TNRD Walhachin Community Water System |
| Warfield | Chlorine | Village of Warfield Water Quality Notification Policy 5600 |
| West Bench (Penticton water system) | Chlorine | RDOS West Bench Annual Water Quality Report |
| West Howe Sound (SCRD Chapman Creek system) | Chlorine | SCRD Chapman Creek Water Treatment Plant Process and Water System Background |
| West Kelowna (Powers Creek Water Service Area) | Chlorine | City of West Kelowna Annual Water Report |
| West Kelowna (Rose Valley Water Service Area) | Chlorine | City of West Kelowna Annual Water Report |
| West Robson | None (untreated) | RDCK West Robson Water System 2026 Customer Update |
| West Vancouver (Eagle Lake system) | Chlorine | District of West Vancouver Drinking Water Quality Annual Report |
| West Vancouver (Metro Vancouver, Seymour-Capilano supply) | Chlorine | District of West Vancouver Drinking Water Quality Annual Report |
| West Vancouver (Montizambert Creek system) | Chlorine | District of West Vancouver Drinking Water Quality Annual Report |
| Westshore Estates (RDCO) | Chlorine | Regional District of Central Okanagan (Westshore Estates) Large Water Systems Annual Report |
| Westurne Heights (RDN) | Chlorine | RDN (Westurne Heights) Water Service Area Annual Report |
| Whiskey Creek (RDN) | Chlorine | RDN (Whiskey Creek) Water Service Area Annual Report |
| Whistler (community water system) | Chlorine | Resort Municipality of Whistler Annual Drinking Water Report |
| Whistler (Emerald Estates system) | Chlorine | Resort Municipality of Whistler Annual Drinking Water Report |
| White Rock | Chloramine | City of White Rock Annual Water Quality Report |
| Wilderness Mountain (CRD) | Chloramine | CRD Wilderness Mountain Water System Annual Report |
| Williams Lake | Chlorine | City of Williams Lake Drinking Water Quality Annual Report |
| Willowbrook (RDOS) | Chlorine | RDOS Willowbrook Annual Water Quality Report |
| Windermere (RDEK East Side Lake Windermere system) | Chlorine | RDEK Annual Water Systems Report |
| Woodbury Village | Chlorine | RDCK Woodbury Village Water System 2026 Customer Update |
| Woodland Heights | Chlorine | RDCK Woodland Heights Water System 2026 Customer Update |
| Woodley Range (CVRD) | Chlorine | CVRD (Woodley Range) Drinking Water System Annual Report |
| Woss (RDMW) | None (untreated) | Regional District of Mount Waddington (Woss) Drinking Water System Annual Report |
| Wynndel | Chlorine | Wynndel Irrigation District 2025 Annual Water Report |
| Yale (FVRD) | None (untreated) | FVRD Yale Water System Annual Report |
| Ymir | Chlorine | RDCK Ymir Water System 2026 Customer Update |
| Youbou (CVRD) | Chlorine | CVRD (Youbou) Drinking Water System Annual Report |
| Zeballos | None (untreated) | Village of Zeballos Drinking Water System 2017 Annual Report (Island Health) |
