| Anchor Point | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Anchor Point, Well Cove Brook) |
| Appleton | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Appleton, Gander Lake (The Outflow)) |
| Aquaforte | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Aquaforte, Davies Pond) |
| Arnold's Cove | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Arnold's Cove, Steve's Pond) |
| Avondale | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Avondale, Lees Pond) |
| Badger | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Badger, Badger Wellhead) |
| Baie Verte | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Baie Verte, Southern Arm Pond) |
| Barachois Brook | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Barachois Brook, Barachois Brook Wellhead) |
| Bauline | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Bauline, #1 Brook Path Well) |
| Bay Roberts | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Bay Roberts, Rocky Pond) |
| Bay St. George South | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Bay St. George South, #1 Well St. Fintan's (The Y)) |
| Beachside | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Beachside, Long Pond) |
| Bellburns | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Bellburns, Bound Brook Tributary) |
| Belleoram | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Belleoram, Rabbit's Pond) |
| Birchy Bay | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Birchy Bay, Jumper's Pond) |
| Bishop's Falls | Chlorine | GNL Drinking Water Treatment Plants inventory, Nov 2023 (Exploits Regional Water Supply) - Bishop's Falls |
| Blaketown | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Blaketown, #2 Well - Daphne Pincent Well) |
| Bonavista | Chlorine | Town of Bonavista Public Notice: Water Quality Update (July 2026) |
| Botwood (Exploits Regional - Northern Arm Lake) | Chlorine | GovNL Drinking Water Treatment Plants inventory, November 2023 - Botwood |
| Branch | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Branch, Well #1) |
| Brighton | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Brighton, Hynes Cove Pond) |
| Bryant's Cove | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Bryant's Cove, Well Field) |
| Buchans | Chlorine | Town of Buchans Municipal Services page |
| Buchans Junction | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Buchans Junction, Lapland Pond) |
| Bunyan's Cove | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Bunyan's Cove, #1 Well) |
| Burgoyne's Cove | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Burgoyne's Cove, Lower Rocky Pond) |
| Burin | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Burin, Big Pond) |
| Canning's Cove | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Canning's Cove, #2 Well - Eugene Ellis) |
| Cape St. George | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Cape St. George, Rouzes Brook) |
| Cappahayden (Renews-Cappahayden) | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Cappahayden, #1 Dinn's Well) |
| Carbonear | Chlorine | Town of Carbonear notice: Town has NOT issued a boil water advisory (Sept 2023) |
| Carmanville | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Carmanville, Grandfathers Pond) |
| Cavendish | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Cavendish, Long Pond) |
| Centreville-Wareham-Trinity | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Centreville-Wareham-Trinity, Northwest Pond) |
| Channel-Port aux Basques | Chlorine | Government of NL Drinking Water Treatment Plants inventory (Nov 2023) - Channel-Port aux Basques |
| Charlottetown (Labrador) | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Charlottetown (Labrador), Middle Pond) |
| Churchill Falls | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Churchill Falls, Smallwood Reservoir) |
| Clarenville | Chlorine | Government of NL Drinking Water Treatment Plants inventory (Nov 2023) - Clarenville |
| Clarke's Beach | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Clarke's Beach, Clarke's Pond) |
| Colliers | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Colliers, #3 Griffin's Well) |
| Comfort Cove-Newstead | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Comfort Cove-Newstead, Steady Cove Pond) |
| Conception Bay South | Chloramine | GovNL NDMA in chloraminated supplies report (Aug 2026) - Conception Bay South, GovNL Drinking Water Treatment Plant Inventory (Nov 2023) - Conception Bay South |
| Conception Harbour | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Conception Harbour, all 5 well systems) |
| Conne River (Miawpukek First Nation) | Chlorine | GovNL Drinking Water Treatment Plant Inventory (Nov 2023) - Conne River |
| Cook's Harbour | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Cook's Harbour, UnNamed Pond) |
| Corner Brook | Chlorine | City of Corner Brook BWA statement (Jan 2026) |
| Cottlesville | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Cottlesville, Rusty Cove Pond) |
| Cow Head | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Cow Head, Short Cat Path Pond) |
| Cox's Cove | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Cox's Cove, Cox's Brook and Upper Area Well) |
| Crow Head | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Crow Head, Oars Pond) |
| Cupids | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Cupids, Brigus Long Pond (to Brigus)) |
| Daniel's Harbour | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Daniel's Harbour, Unnamed Spring) |
| Deadman's Bay | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Deadman's Bay, Deadman's Pond) |
| Deer Lake | Chlorine | Town of Deer Lake Water and Sewer page |
| Dildo | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Dildo, Broad Cove Pond) |
| Eastport | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Eastport, Dug) |
| Elliston | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Elliston, Big Pond) |
| Embree | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Embree, Troke's Cove Pond) |
| Englee | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Englee, Island Cove Pond) |
| Fairbanks-Hillgrade | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Fairbanks-Hillgrade, Saltine's Pond) |
| Fermeuse | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Fermeuse, Merrymeeting Pond, Bear Cove Pond) |
| Ferryland | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Ferryland, Deep Cove Pond) |
| Flower's Cove | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Flower's Cove, French Island Pond) |
| Fogo Island (Fogo - Freeman's Pond) | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Fogo Island, Freeman's Pond) |
| Fogo Island (Joe Batt's Arm-Barr'd Islands-Shoal Bay - Long Pond) | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Fogo Island, Long Pond) |
| Fogo Island (Seldom-Little Seldom - Bullock Cove Pond) | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Fogo Island, Bullock Cove Pond) |
| Fogo Island (Tilting - Sandy Cove Pond) | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Fogo Island, Sandy Cove Pond) |
| Forteau | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Forteau, Trout Brook) |
| Fortune | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Fortune, Horsebrook) |
| Fox Cove-Mortier | Chlorine | Government of NL Permit to Operate OP-W-14793-2026, Town of Fox Cove-Mortier |
| Frenchman's Cove | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Frenchman's Cove, Dug Well) |
| Gambo | Chlorine | Government of NL Permit to Operate - Gambo Drinking Water System (OP-W-11667-2021) |
| Gander | Chloramine | Town of Gander Water Treatment and Distribution page |
| Garden Cove | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Garden Cove, Arch Cove Pond) |
| Garnish | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Garnish, Witchazel Pond) |
| George's Brook-Milton | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (George's Brook-Milton, George's Brook) |
| Georgetown | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Georgetown, Third Pond) |
| Gillams | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Gillams, Meaters Pond) |
| Glenwood | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Glenwood, Gander Lake (The Outflow)) |
| Glovertown | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Glovertown, Northwest Pond) |
| Grand Bank | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Grand Bank, Horsebrook) |
| Grand Falls-Windsor | Chlorine | Government of NL Drinking Water Treatment Plants inventory, November 2023 - Grand Falls-Windsor |
| Greenspond | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Greenspond, Shambler's Cove Pond) |
| Hampden | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Hampden, Elliot Brook) |
| Hant's Harbour | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Hant's Harbour, Eastern Pond (Halfway Brook)) |
| Happy Valley-Goose Bay | Chlorine | Town of Happy Valley-Goose Bay Treatment Facilities page |
| Harbour Grace | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Harbour Grace, Bannerman Lake) |
| Harbour Main-Chapel's Cove-Lakeview | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Harbour Main-Chapel's Cove-Lakeview, Maloneys River) |
| Hawke's Bay | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Hawke's Bay, Torrent River) |
| Heart's Content | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Heart's Content, Southern Cove Pond) |
| Heart's Delight-Islington | Chlorine | Government of NL Drinking Water Treatment Plants inventory (Nov 2023) - Heart's Delight-Islington |
| Heart's Desire | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Heart's Desire, Terrence Pond) |
| Herring Neck | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Herring Neck, Gut Pond) |
| Hickman's Harbour-Robinson Bight | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Hickman's Harbour-Robinson Bight, Big Loss Pound Pond) |
| Hodge's Cove | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Hodge's Cove, Drilled) |
| Holyrood | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Holyrood, Main Line (well #1 and well#3)) |
| Hopeall | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Hopeall, Charles Cumby Well) |
| Hopedale | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Hopedale, American Pond) |
| Hughes Brook | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Hughes Brook, Reservoir) |
| Humber Arm South | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Humber Arm South, Dormody's Brook) |
| Indian Bay | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Indian Bay, Indian Bay Brook) |
| Isle aux Morts | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Isle aux Morts, Burnt Ground Pond) |
| Jackson's Arm | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Jackson's Arm, Unnamed Brook) |
| King's Point | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (King's Point, Bulley's Pond) |
| Kippens | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Kippens, Town of Kippens Wellhead) |
| L'Anse au Clair | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (L'Anse au Clair, Park Pond) |
| L'Anse au Loup | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (L'Anse au Loup, L'Anse Au Loup River) |
| Labrador City | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Labrador City, Beverly Lake) |
| Lamaline | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Lamaline, Upper Hodges Pond) |
| Lark Harbour | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Lark Harbour, Fairfax Brook) |
| Leading Tickles | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Leading Tickles, Cook's Pond) |
| Lewin's Cove | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Lewin's Cove, Big Pond) |
| Lewisporte | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Lewisporte, Stanhope Pond) |
| Little Bay | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Little Bay, First Pond) |
| Little Burnt Bay | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Little Burnt Bay, Troke's Cove Pond) |
| Long Harbour-Mount Arlington Heights | Chlorine | GovNL Drinking Water Treatment Plants inventory, Nov 2023 - Long Harbour-Mount Arlington Heights |
| Loon Bay | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Loon Bay, Southeast Pond) |
| Lourdes | Chlorine | GovNL Drinking Water Treatment Plants inventory, Nov 2023 - Lourdes |
| Lumsden | Chlorine | GovNL Drinking Water Treatment Plants inventory, Nov 2023 - Lumsden |
| Main Brook | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Main Brook, Joe Burt's Pond) |
| Mainland | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Mainland, Caribou Brook) |
| Makinsons | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Makinsons, Country Path Wells (Dale Efford Well)) |
| Makkovik | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Makkovik, Ranger Bight Pond) |
| Massey Drive (City of Corner Brook - Trout Pond) | Chlorine | GovNL Drinking Water Treatment Plants inventory, Nov 2023 - Massey Drive |
| McCallum | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (McCallum, Drilled) |
| McIvers | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (McIvers, McIvers Brook) |
| Meadows | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Meadows, Meater's Pond) |
| Merritt's Harbour | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Merritt's Harbour, Jimmy's Pond) |
| Miles Cove | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Miles Cove, Paddock's Pond) |
| Millertown | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Millertown, Water Pond) |
| Milltown-Head of Bay d'Espoir | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Milltown-Head of Bay d'Espoir, Jersey Pond) |
| Morrisville | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Morrisville, Morrisville Pond) |
| Mount Moriah (Corner Brook - Trout Pond) | Chlorine | GovNL Drinking Water Treatment Plants inventory (Nov 2023) - Mount Moriah, Government of NL Water Resources Portal - Public Water Supplies (Corner Brook, Trout Pond) |
| Mount Pearl (City of St. John's - Bay Bulls Big Pond) | Chloramine | GovNL WRMD NDMA in Chloraminated Supplies report (2026 Update) - Mount Pearl, GovNL Drinking Water Treatment Plants inventory (Nov 2023) - Mount Pearl |
| Musgrave Harbour | Chlorine | GovNL Drinking Water Treatment Plants inventory (Nov 2023) - Musgrave Harbour |
| Nain | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Nain, Trouser Lake) |
| Nameless Cove | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Nameless Cove, French Island Pond) |
| Natuashish | Chlorine | GovNL Drinking Water Treatment Plants inventory (Nov 2023) - Natuashish |
| New Harbour | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (New Harbour, Williams Hill Well) |
| New Perlican | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (New Perlican, New Perlican River) |
| New-Wes-Valley | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (New-Wes-Valley, Little Northwest Pond) |
| Norman's Cove-Long Cove | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Norman's Cove-Long Cove, John Newhooks Pond) |
| Norris Arm | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Norris Arm, Mill Lake) |
| North West River | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (North West River, Well Field + 1 Well) |
| Old Perlican | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Old Perlican, Bell Pond) |
| Paradise | Chloramine | Government of NL NDMA in Chloramination Systems Report 2026 - Paradise |
| Parkers Cove | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Parkers Cove, Unnamed Pond) |
| Parson's Pond | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Parson's Pond, Cold Brook) |
| Pasadena | Chlorine | Government of NL Drinking Water Treatment Plants inventory (Nov 2023) - Pasadena |
| Peterview (Exploits Regional Water - Northern Arm Lake) | Chlorine | Government of NL DWQI Summary Winter 2026, Government of NL Drinking Water Treatment Plants inventory (Nov 2023) - Peterview |
| Petty Harbour-Maddox Cove | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Petty Harbour-Maddox Cove, Western Barrens Pond) |
| Phillips Head | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Phillips Head, Dogberry Brook) |
| Pigeon Cove-St. Barbe | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Pigeon Cove-St. Barbe, Long Pond (Intake #2)) |
| Pilley's Island | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Pilley's Island, Loadabats Pond) |
| Placentia (Dunville) | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Placentia, Wyses Pond) |
| Placentia (Freshwater, Argentia - Clarkes Pond) | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Placentia, Clarke's Pond) |
| Placentia (Placentia, Jerseyside - Larkins Pond) | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Placentia, Larkin's Pond) |
| Pleasantview | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Pleasantview, Little Arm Pond) |
| Point Leamington | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Point Leamington, Little Pond) |
| Point May | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Point May, Short's Pond) |
| Point of Bay | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Point of Bay, Indian Cove Pond) |
| Pool's Cove | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Pool's Cove, Widgeon Pond) |
| Port Albert | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Port Albert, Beaverton Pond) |
| Port Anson | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Port Anson, Anchor Pond) |
| Port au Choix | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Port au Choix, Winterhouse Pond) |
| Port au Port East | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Port au Port East, Drilled Well / Berry Head Watershed) |
| Port au Port West | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Port au Port West-Aguathuna-Felix Cove, Jim Rowe's Brook) |
| Port Blandford | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Port Blandford, Noseworthy's Pond) |
| Port Hope Simpson | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Port Hope Simpson, Arnold's Brook and Pond) |
| Port Saunders | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Port Saunders, Tom Taylor's Pond) |
| Portland Creek | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Portland Creek, Unnamed Streams) |
| Portugal Cove-St. Philip's | Chloramine | Town of Portugal Cove-St. Philip's Water and Wastewater page |
| Postville | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Postville, Big Pond) |
| Pouch Cove | Chlorine | Town of Pouch Cove notice: Removal of Boil Water Advisory |
| Purcell's Harbour | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Purcell's Harbour, Purcell's Harbour Pond) |
| Raleigh | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Raleigh, Raleigh Wellhead) |
| Ramea | Chlorine | NL Drinking Water Treatment Plants inventory (Nov 2023) - Ramea |
| Rattling Brook | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Rattling Brook, Mark's Pond Brook) |
| Red Harbour | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Red Harbour, Wellfield) |
| Reidville | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Reidville, Humber Canal) |
| River of Ponds | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (River of Ponds, Burnt Head Ponds) |
| Riverhead (St. Mary's Bay) | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Riverhead, Well Field) |
| Robert's Arm | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Robert's Arm, Young's Pond/Dam Pond) |
| Roddickton-Bide Arm (Bide Arm) | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Roddickton-Bide Arm, First Clay Cove Pond) |
| Roddickton-Bide Arm (Roddickton) | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Roddickton-Bide Arm, East Brook Pond) |
| Rose Blanche-Harbour Le Cou | Chlorine | Town of Rose Blanche-Harbour Le Cou council minutes, July 17 2026 |
| Salmon Cove | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Salmon Cove, Rocky Pond) |
| Salvage | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Salvage, Wild Cove Pond) |
| Sandy Cove | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Sandy Cove, Dug) |
| Seal Cove (White Bay) | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Seal Cove, Seal Cove Brook & Long Pond) |
| Sheppardville | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Sheppardville, Drilled) |
| Sheshatshiu | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Sheshatshiu, Wells 1, 2 & 3) |
| Sibley's Cove and Lead Cove (New Chelsea-New Melbourne-Brownsdale-Sibley's Cove-Lead Cove) | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (New Chelsea-New Melbourne-Brownsdale-Sibley's Cove-Lead Cove, Sibley's Cove Pond) |
| Small Point-Adam's Cove-Blackhead-Broad Cove | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Small Point-Adam's Cove-Blackhead-Broad Cove, #4 Well - Leonard King Well) |
| South Brook | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (South Brook, Next To Brook) |
| South River | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (South River, Brigus Long Pond (to Brigus)) |
| Southport (Caplin Cove-Southport) | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Caplin Cove-Southport, Button's Pond) |
| Spaniard's Bay | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Spaniard's Bay, Kelly's Pond (Spider's Pond)) |
| Springdale | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Springdale, Sullivan's Pond) |
| St. Alban's | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (St. Alban's, Well Field) |
| St. George's | Chlorine | Town of St. George's Council Minutes Feb 10 2026, Government of NL Water Resources Portal - Public Water Supplies (St. George's, Wellfield) |
| St. John's (Bay Bulls Big Pond) | Chloramine | Government of NL NDMA in Chloraminated Public Drinking Water Supplies, 2026 Update - St. John's, Government of NL Drinking Water Treatment Plants inventory Nov 2023 - St. John's |
| St. John's (Petty Harbour Long Pond) | Chlorine | Government of NL Drinking Water Treatment Plants inventory Nov 2023 - St. John's, Government of NL NDMA report 2026 Update - St. John's |
| St. John's (Windsor Lake) | Chlorine | Government of NL Drinking Water Treatment Plants inventory Nov 2023 - St. John's, Government of NL NDMA report 2026 Update - St. John's |
| St. Lawrence | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (St. Lawrence, St. Lawrence River) |
| St. Lunaire-Griquet | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (St. Lunaire-Griquet, Joe's Pond) |
| St. Mary's | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (St. Mary's, Drilled) |
| St. Paul's | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (St. Paul's, Two Mile Pond) |
| Steady Brook | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Steady Brook, Wellfield) |
| Stephenville | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Stephenville, #1 Well) |
| Stephenville Crossing | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Stephenville Crossing, Wells #6 & #7) |
| Stoneville | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Stoneville, Dog Bay Pond Brook) |
| Summerford | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Summerford, Rusty Cove Pond) |
| Terrenceville | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Terrenceville, Big Brook) |
| Tizzard's Harbour | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Tizzard's Harbour, Rocky Pond) |
| Torbay | Chlorine | Town of Torbay notice: Precautionary Boil Order Lifted, May 14 2026, Government of NL Water Resources Portal - Public Water Supplies (Torbay, North Pond) |
| Trinity | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Trinity, Indian Pond) |
| Trinity Bay North | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Trinity Bay North, Whirl Pond) |
| Trout River | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Trout River, Feeder Brook) |
| Twillingate | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Twillingate, Wild Cove Pond) |
| Upper Island Cove | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Upper Island Cove, Kelly's Pond (Spider's Pond)) |
| Victoria | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Victoria, Rocky Pond) |
| Wabush | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Wabush, Wahnahnish Lake) |
| West Bay (Lourdes regional plant - Victor's Brook) | Chlorine | Government of NL Drinking Water Treatment Plants inventory Nov 2023 - West Bay |
| West St. Modeste | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (West St. Modeste, Well Field (well #1)) |
| Whitbourne | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Whitbourne, Hodges River) |
| Whiteway | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Whiteway, Long Pond) |
| Winterland | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Winterland, Well Field) |
| Winterton | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Winterton, Western Pond) |
| Wooddale (Exploits Regional Water Supply) | Chlorine | Government of NL Drinking Water Treatment Plants inventory Nov 2023 - Wooddale |
| Woody Point | Chlorine | Government of NL Water Resources Portal - Public Water Supplies (Woody Point, Winterhouse Brook) |
