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February 22, 2025

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Advisories for Ontario

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Select municipality for details:

MunicipalityTypeSince
1. ALBAN (1) Boil Water 6/27/2024
2. ALGONQUIN PROVINCIAL PARK Boil Water 2/10/2025
3. Anishnaabeg of Naongashiing First Nation Boil Water 11/30/2021
4. Annes Chip Stand Boil Water 7/14/2023
5. AYLMER (2) Water Quality Advisory 12/15/2022
6. AYTON Lodge Water Quality Advisory 6/25/2024
7. BASS LAKE Cyanobacteria Bloom 10/2/2024
8. Baycrest Lodge Boil Water 6/2/2023
9. BAYVIEW ESCARPMENT PROV PK Boil Water 5/25/2024
10. BEAR LAKE Cyanobacteria Bloom 8/6/2024
11. Bearskin Lake First Nation (3) Boil Water 5/4/2022
12. BELWOOD LAKE Cyanobacteria Bloom 8/23/2024
13. Big Grassy First Nation Boil Water 7/22/2024
14. BLACK CREEK PROVINCIAL PARK Boil Water 5/25/2024
15. BLOOMFIELD (1) Boil Water 8/29/2024
16. BONNIE LAKE Cyanobacteria Bloom 7/5/2024
17. BRANTFORD (Lifebridges) Boil Water 6/26/2024
18. BRUCE MINES (Bruce Bay Cottages) Boil Water 9/30/2024
19. CABOT HEAD PROVINCIAL PARK Boil Water 5/25/2024
20. CALLANDER BAY Cyanobacteria Bloom 8/2/2024
21. Camp Kagama Water Quality Advisory 6/3/2024
22. Campbellford Boil Water 6/4/2020
23. CAMPBELLVILLE Old Diamond Boil Water 8/23/2024
24. CARRYING PLACE (Stoneburg Cove Resort) Boil Water 9/17/2024
25. Cat Lake First Nation Boil Water 2/26/2024
26. Cat Lake First Nation Boil Water 3/11/2024
27. Cedar Creek Campground Boil Water 7/14/2020
28. CENTENNIAL PARK POND Cyanobacteria Bloom 8/16/2024
29. CENTERVILLE (SMJ Youth Services) Boil Water 1/2/2025
30. CHAPLEAU (1) Boil Water 8/10/2023
31. CHAPLEAU-NEMEGOSENDA RIVER PROV PK Boil Water 5/25/2024
32. CHATHAM (Glasshouse Nursery & Garden Centre) Boil Water 12/12/2024
33. Chippewas of Nawash-Cape Croker First Nation Boil Water 1/21/2019
34. Chippewas of the Thames Boil Water 12/14/2022
35. COBDEN (Logos Land Resort SDWS Campground) Boil Water 7/8/2024
36. Columbus Golf & Country Club Boil Water 5/21/2021
37. COMMANDA LAKE Cyanobacteria Bloom 6/30/2024
38. CONESTOGO LAKE Cyanobacteria Bloom 9/13/2024
39. CORNWALL (Glen Walter System) Boil Water 12/25/2024
40. Deer Lake First Nation Boil Water 10/15/2019
41. DEPARTURE LAKE Cyanobacteria Bloom 8/22/2024
42. DUNDALK Drinking Water System Water Quality Advisory 1/7/2025
43. DURHAM (1) Water Quality Advisory 3/8/2024
44. Eabametoong First Nation Boil Water 8/1/2001
45. ESPANOLA (Mountain Cove Lodge) Boil Water 8/14/2024
46. Ferme Butte and Bine Boil Water 7/6/2023
47. FOLEYET (Shenango Lodge) Boil Water 8/20/2024
48. Fort Severn First Nation Boil Water 12/29/2022
49. FREDERICK HOUSE LAKE Cyanobacteria Bloom 9/15/2024
50. FRENCH RIVER Cyanobacteria Bloom 9/23/2024
51. FUSHIMI LAKE PROVINCIAL PARK Boil Water 9/8/2023
52. Georgian Bluffs Boil Water 8/26/2019
53. GEORGINA Boil Water 4/18/2024
54. Georgina Island Chippewa Boil Water 4/24/2017
55. Glen Walter Boil Water 5/18/2023
56. GORDON LAKE Community Hall Boil Water 9/25/2024
57. Grassy Narrows First Nation Boil Water 8/29/2024
58. Green Wilderness Lodge Boil Water 8/17/2022
59. GUELPH LAKE Cyanobacteria Bloom 9/13/2024
60. Gull Bay First Nation Boil Water 4/30/2009
61. HALTON HILLS (Mt. Zion Apostolic Ark Church of Jes Boil Water 10/24/2024
62. HAMPTON Boil Water 1/29/2024
63. HANOVER (Victory Fellowship Church) Water Quality Advisory 7/3/2024
64. Harcourt (1) Boil Water 8/4/2024
65. HARTINGTON (Lazy Acre Cottages) Boil Water 6/19/2021
66. HAZELWOOD LAKE Cyanobacteria Bloom 8/21/2024
67. HEARST (1) Boil Water 8/3/2024
68. HIGH LAKE Cyanobacteria Bloom 9/19/2024
69. HILLIER (Cold Creek Vineyards) Boil Water 10/4/2024
70. Hoard Station Boil Water 3/31/2023
71. HOLSTEIN (2) Water Quality Advisory 8/22/2024
72. HOPE BAY FOREST PROVINCIAL PARK Boil Water 5/25/2024
73. Horwood Lake Cyanobacteria Bloom 7/19/2023
74. Icarus Lake Cyanobacteria Bloom 7/6/2023
75. IRA LAKE PROVINCIAL PARK Boil Water 5/25/2024
76. IRON BRIDGE (Melwel Lodge) Boil Water 8/8/2024
77. Johnston Hrb.-Pine Tree Pt. Prov Park Boil Water 5/25/2024
78. Johson Landing Road - Winnipeg River Cyanobacteria Bloom 7/28/2023
79. Kalmo Sandy Beach Cyanobacteria Bloom 6/29/2023
80. Kashechewan Boil Water 12/3/2024
81. Kawartha Highland Provincial Park Boil Water 12/17/2020
82. KENOGAMING LAKE (Thunderstock Outfitters) Boil Water 5/22/2024
83. KENOGAMISIS LAKE Cyanobacteria Bloom 9/16/2024
84. Kicking Mule Ranch Boil Water 9/27/2023
85. LAKE BERNARD Cyanobacteria Bloom 7/19/2024
86. LAKE DALRYMPLE Cyanobacteria Bloom 9/24/2024
87. LAKE ERIE Cyanobacteria Bloom 8/1/2024
88. LAKE EUGENIA Cyanobacteria Bloom 8/15/2024
89. LAKE MUSKOKA Cyanobacteria Bloom 7/8/2024
90. LAKE NIAPENCO Cyanobacteria Bloom 8/27/2024
91. LAKE NIPIGON Cyanobacteria Bloom 8/26/2024
92. LAKE NIPISSING Cyanobacteria Bloom 8/14/2024
93. LAKE NOSBONSING Cyanobacteria Bloom 7/29/2024
94. Lake of the Woods Cyanobacteria Bloom 10/11/2023
95. LAKE ONTARIO (3) Cyanobacteria Bloom 8/27/2024
96. LAKE SCUGOG (2) Cyanobacteria Bloom 8/21/2024
97. LAKE SIMCOE Cyanobacteria Bloom 9/3/2024
98. LAKE ST. CLAIR Cyanobacteria Bloom 7/23/2024
99. LAKE ST. JOHN Cyanobacteria Bloom 8/1/2024
100. LAKE SUPERIOR (3) Cyanobacteria Bloom 8/27/2024
101. LEEs Creek (North Bay) Do Not Consume 2/22/2017
102. LIONS HEAD PROV PARK Boil Water 5/25/2024
103. LITTLE BRITAIN United Church Boil Water 1/23/2025
104. LITTLE LAKE Cyanobacteria Bloom 8/1/2024
105. LITTLE LAKE Cyanobacteria Bloom 8/7/2024
106. LITTLE TYNE LAKE Cyanobacteria Bloom 9/30/2024
107. LONG BEACH Water System Boil Water 4/10/2006
108. LONGS LAKE (Huntsville) Cyanobacteria Bloom 9/19/2024
109. Lost Lake Campground Boil Water 9/2/2022
110. MacLean Lake Cyanobacteria Bloom 8/14/2023
111. MacLeod Provincial Park Boil Water 11/18/2020
112. Maple Ridge Park Campground Boil Water 5/12/2023
113. MARIE LOUISE LAKE Cyanobacteria Bloom 9/26/2024
114. MARK S. BURNHAM PROV PK Boil Water 5/25/2024
115. Marten Falls First Nation Boil Water 7/18/2005
116. MASSEY Boil Water 4/25/2024
117. MAYNOOTH (Graphite Bible Camp) Do Not Consume 8/9/2024
118. MILTON (Humes Auction Farm) Do Not Consume 10/2/2024
119. Misery Bay Prov. Park Boil Water 8/1/2023
120. Mishkeegogamang First Nation Boil Water 5/8/2024
121. Missinaibi Provincial Park Boil Water 8/13/2021
122. Mohawks of Bay of Quinte Boil Water 9/2/2024
123. MOSQUITO LAKE Cyanobacteria Bloom 7/22/2024
124. Munsee Delaware First Nation Boil Water 2/27/2024
125. Muskrat Dam Lake Reserve Boil Water 10/24/2003
126. Neskantaga First Nation Boil Water 2/1/1995
127. NEW LISKEARD Community Water System Boil Water 2/18/2025
128. Newcastle Golf and Country Club Boil Water 5/21/2021
129. Nibinamik First Nation Boil Water 2/5/2013
130. NIGHT HAWK LAKE Cyanobacteria Bloom 9/14/2024
131. NORTH BAY Spill 12/4/2024
132. NORTH MIDDLESEX (2) Water Quality Advisory 8/23/2024
133. North Spirit Lake First Nation Boil Water 4/5/2019
134. North Spirit Lake Indian reserve Boil Water 8/20/2024
135. Northwest Angle 33 Boil Water 6/24/2024
136. OAKVILLE (2) Do Not Consume 1/15/2025
137. OLIVER PAIPOONGE Do Not Consume 3/9/2023
138. ONE ISLAND LAKE Cyanobacteria Bloom 8/12/2024
139. Oneida of The Thames First Nation Boil Water 9/1/2019
140. ORR LAKE Cyanobacteria Bloom 8/2/2024
141. Palmer Rapids - Maplehaus Boil Water 6/13/2023
142. PAUDASH LAKE Cyanobacteria Bloom 7/2/2024
143. PELEE ISLAND (2) Boil Water 6/25/2024
144. Pembroke - LJs Boil Water 6/10/2023
145. PETAWAWA (Pine Ridge Park & Resort) Boil Water 6/12/2024
146. Peterborough Cyanobacteria Bloom 7/24/2023
147. PICTON (1) Boil Water 9/10/2024
148. PICTON (Lake on the Mountain Brewing Company) Boil Water 12/5/2024
149. PORT HOPE (The Grocery Outlet) Boil Water 1/30/2025
150. POTHOLES PROVINCIAL PARK Boil Water 5/25/2024
151. Rainy River First Nation Boil Water 7/8/2024
152. RAMSEY LAKE Cyanobacteria Bloom 9/13/2024
153. REMI LAKE Cyanobacteria Bloom 8/15/2024
154. Rene Brunelle Provincial Park Boil Water 12/4/2020
155. Rideau Ferry Country Home Boil Water 6/12/2024
156. ROSENEATH (Langs Family Resort & Marina) Boil Water 8/21/2024
157. Russell - Marvelville Community Centre Boil Water 8/15/2023
158. RUTH LAKE Cyanobacteria Bloom 9/30/2024
159. Sandy Lake First Nation Boil Water 10/10/2002
160. SAULT STE. MARIE Boil Water 9/25/2024
161. SEELEY’S BAY Boil Water 7/11/2023
162. Seine River First Nation Boil Water 2/10/2025
163. Shawanaga First Nation Boil Water 11/6/2024
164. Shelburne Boil Water 7/10/2023
165. SILVER LAKE Cyanobacteria Bloom 9/9/2024
166. Simcoe Water Quality Advisory 7/28/2017
167. SIOUX LOOKOUT Water System Boil Water 8/20/2024
168. Slate Falls First Nation Boil Water 6/23/2023
169. Slate Falls First Nation Boil Water 11/11/2024
170. Smokey Head-White Bluff Prov Pk Boil Water 5/25/2024
171. SOUTHWOLD Water Supply Boil Water 2/19/2025
172. SPRING BAY (Freds Camp) Boil Water 9/7/2024
173. ST CLAIR RIVER Spill 8/3/2024
174. ST. CLAIR RIVER (Sarnia Harbour) Spill 7/11/2024
175. STAR LAKE Cyanobacteria Bloom 8/28/2024
176. SUNDRIDGE (Zion United Church) Do Not Consume 10/31/2024
177. Surprise Lake Cyanobacteria Bloom 8/17/2023
178. TEA LAKE - Northeast Shoreline Cyanobacteria Bloom 10/30/2023
179. The Shoals Prov. Park Boil Water 5/25/2024
180. THESSALON (Pinecrest Tent & Trailer Park WS) Boil Water 8/29/2024
181. THREE MILE LAKE Cyanobacteria Bloom 6/10/2024
182. THUNDER BAY - WEST LOON LAKE Cyanobacteria Bloom 8/28/2023
183. Timberwolf Lodge Restaurant Boil Water 7/22/2022
184. TROUT LAKE Cyanobacteria Bloom 9/30/2024
185. TROUT LAKE Cyanobacteria Bloom 6/24/2024
186. TWO ISLAND LAKE Cyanobacteria Bloom 8/22/2024
187. VICTORIA HARBOUR Municipal WS Boil Water 7/8/2024
188. W. Leitch Organics Boil Water 5/26/2023
189. Wabigoon Lake Cyanobacteria Bloom 7/26/2023
190. WAINFLEET Boil Water 4/10/2006
191. WAKAMI LAKE Cyanobacteria Bloom 9/25/2024
192. Wakami Lake Provincial Park Do Not Consume 9/13/2024
193. WARREN Water System Boil Water 1/15/2024
194. WASI LAKE Cyanobacteria Bloom 8/9/2024
195. WEBBWOOD (Black Bear Camp) Do Not Consume 9/27/2024
196. Weenusk First Nation Boil Water 5/3/2024
197. What The Fries Boil Water 5/23/2023
198. White Lake Provincial Park Boil Water 5/18/2024
199. WHITESTONE LAKE Cyanobacteria Bloom 9/30/2024
200. WHITEWATER LAKE Cyanobacteria Bloom 9/17/2024
201. Whitson Lake Cyanobacteria Bloom 7/7/2023
202. WOOLWICH Reservoir Cyanobacteria Bloom 9/13/2024
203. Young Lake also known as Trout Lake (Northeast Sho Boil Water 9/14/2023
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