Drinking Water

Water Quality

Municipal drinking water for Canadian cities: hardness, pH, lead, fluoride, and chlorine graded against Health Canada guidelines, plus where each city draws water and how it is treated.

City rankings Boil water advisories

City rankings

Every tracked municipality. Sort by grade, hardness, pH, lead, fluoride, chlorine, or source type. Open a city for lab grades, or see where its water comes from (sources, plants, map).

172 of 172 cities

City ranking table

1.GuelphONGrade B	B	460	Very hard	7.2	0.1	0.6	0.6	Groundwater	Outlook
2.KitchenerONGrade B	B	400	Very hard	8.0	0.3	0.5	0.8	Mixed surface and groundwater	Outlook
3.WaterlooONGrade C	C	400	Very hard	8.2	0.7	0.7	1.2	Mixed surface and groundwater	Outlook
4.Belleville - Quinte WestONGrade C	C	279	Very hard	7.7	0.7	0.5	1.2	Surface	Outlook
5.YorktonSKGrade C	C	279	Very hard	7.2	0.7	0.6	1.2	Groundwater	Outlook
6.SherbrookeQCGrade C	C	277	Very hard	7.5	0.5	0.6	1	Surface	Outlook
7.VictoriavilleQCGrade C	C	276	Very hard	7.9	0.4	0.7	0.9	Surface	Outlook
8.HawkesburyONGrade C	C	271	Very hard	7.9	0.7	0.7	1.2	Surface	Outlook
9.IngersollONGrade C	C	271	Very hard	7.4	0.7	0.5	1.2	Groundwater	Outlook
10.MataneQCGrade C	C	271	Very hard	6.9	0.7	0.6	1.2	Groundwater	Outlook
11.SydneyNSGrade C	C	270	Very hard	6.8	0.6	0.5	1.1	Groundwater	Outlook
12.BrantfordONGrade B	B	266	Very hard	7.4	0.2	0.5	0.7	Surface	Outlook
13.Prince AlbertSKGrade B	B	265	Very hard	7.8	0.1	0.6	0.6	Surface	Outlook
14.Sainte-MarieQCGrade B	B	262	Very hard	8.0	0.6	0.5	1.1	Surface	Outlook
15.TerrebonneQCGrade B	B	259	Very hard	7.7	0.3	0.5	0.8	Surface	Outlook
16.BrockvilleONGrade B	B	257	Very hard	7.0	0.1	0.7	0.6	Surface	Outlook
17.CollingwoodONGrade B	B	255	Very hard	6.8	0.7	0.5	1.2	Surface	Outlook
18.Port AlberniBCGrade B	B	253	Very hard	8.1	0.5	0.6	1	Surface	Outlook
19.LavalQCGrade B	B	253	Very hard	7.1	0.5	0.5	1	Surface	Outlook
20.EdmundstonNBGrade B	B	252	Very hard	7.0	0.4	0.7	0.9	Groundwater	Outlook
21.PeterboroughONGrade B	B	252	Very hard	8.0	0.4	0.5	0.9	Surface	Outlook
22.Port HopeONGrade B	B	252	Very hard	7.5	0.4	0.6	0.9	Surface	Outlook
23.Quebec CityQCGrade B	B	250	Very hard	7.3	0.2	0.7	0.7	Surface	Outlook
24.Val-d'OrQCGrade B	B	249	Very hard	7.7	0.1	0.5	0.6	Surface	Outlook
25.CourtenayBCGrade B	B	246	Very hard	6.9	0.6	0.6	1.1	Surface	Outlook
26.Wasaga BeachONGrade B	B	244	Very hard	8.2	0.4	0.7	0.9	Surface	Outlook
27.New GlasgowNSGrade B	B	241	Very hard	7.4	0.1	0.5	0.6	Surface	Outlook
28.Swift CurrentSKGrade C	C	238	Very hard	7.1	0.6	0.5	1.1	Surface	Outlook
29.StratfordONGrade C	C	235	Very hard	7.3	0.3	0.7	0.8	Groundwater	Outlook
30.BrooksABGrade C	C	234	Very hard	8.2	0.2	0.7	0.7	Surface	Outlook
31.Fort St. JohnBCGrade C	C	233	Very hard	8.1	0.1	0.6	0.6	Surface	Outlook
32.CamroseABGrade C	C	232	Very hard	7.0	0	0.7	0.5	Surface	Outlook
33.GanderNLGrade C	C	230	Very hard	7.8	0.6	0.6	1.1	Surface	Outlook
34.Centre WellingtonONGrade B	B	229	Very hard	8.2	0.5	0.7	1	Groundwater	Outlook
35.Chatham-KentONGrade B	B	229	Very hard	8.2	0.5	0.7	1	Mixed surface and groundwater	Outlook
36.MarkhamONGrade B	B	229	Very hard	7.2	0.5	0.6	1	Surface	Outlook
37.SummersidePEGrade B	B	220	Very hard	6.8	0.4	0.5	0.9	Groundwater	Outlook
38.Trois-RivieresQCGrade B	B	216	Very hard	7.4	0	0.5	0.5	Mixed surface and groundwater	Outlook
39.LacombeABGrade B	B	215	Very hard	7.3	0.7	0.7	1.2	Surface	Outlook
40.Dawson CreekBCGrade B	B	215	Very hard	7.8	0.7	0.6	1.2	Surface	Outlook
41.Kawartha LakesONGrade B	B	214	Very hard	8.2	0.6	0.7	1.1	Mixed surface and groundwater	Outlook
42.BurlingtonONGrade B	B	210	Very hard	7.3	0.2	0.7	0.7	Surface	Outlook
43.Red DeerABGrade B	B	209	Very hard	7.3	0.4	0.7	0.9	Surface	Outlook
44.Owen SoundONGrade B	B	209	Very hard	7.7	0.1	0.5	0.6	Surface	Outlook
45.Sept-ÎlesQCGrade B	B	209	Very hard	7.2	0.1	0.6	0.6	Surface	Outlook
46.PentictonBCGrade B	B	208	Very hard	7.6	0	0.7	0.5	Surface	Outlook
47.BathurstNBGrade B	B	208	Very hard	8.1	0	0.6	0.5	Surface	Outlook
48.EssaONGrade B	B	208	Very hard	7.1	0	0.5	0.5	Mixed surface and groundwater	Outlook
49.ReginaSKGrade B	B	208	Very hard	7.8	0.5	0.5	1	Surface	Outlook
50.Sault Ste. MarieONGrade B	B	207	Very hard	7.0	0.7	0.7	1.2	Mixed surface and groundwater	Outlook
51.Saint-GeorgesQCGrade B	B	207	Very hard	8.0	0.7	0.5	1.2	Surface	Outlook
52.MiramichiNBGrade B	B	204	Very hard	7.7	0.4	0.5	0.9	Surface	Outlook
53.GatineauQCGrade B	B	203	Very hard	7.6	0.3	0.7	0.8	Surface	Outlook
54.Medicine HatABGrade B	B	200	Very hard	7.9	0.6	0.7	1.1	Surface	Outlook
55.GranbyQCGrade B	B	200	Very hard	7.8	0	0.6	0.5	Surface	Outlook
56.SaskatoonSKGrade B	B	196	Very hard	8.2	0	0.7	0.5	Surface	Outlook
57.Sainte-Agathe-des-MontsQCGrade C	C	195	Very hard	6.8	0.3	0.5	0.8	Surface	Outlook
58.SaguenayQCGrade C	C	194	Very hard	8.2	0.2	0.7	0.7	Mixed surface and groundwater	Outlook
59.OkotoksABGrade C	C	192	Very hard	8.0	0	0.5	0.5	Groundwater	Outlook
60.CalgaryABGrade C	C	191	Very hard	7.7	0.7	0.6	1.2	Surface	Outlook
61.TruroNSGrade C	C	190	Very hard	6.8	0.6	0.5	1.1	Groundwater	Outlook
62.Grand Falls-WindsorNLGrade B	B	189	Very hard	7.2	0.5	0.6	1	Surface	Outlook
63.Baie-ComeauQCGrade B	B	189	Very hard	8.2	0.5	0.7	1	Surface	Outlook
64.JolietteQCGrade B	B	189	Very hard	7.2	0.5	0.6	1	Surface	Outlook
65.Moose JawSKGrade B	B	187	Very hard	7.5	0.3	0.6	0.8	Surface	Outlook
66.Saint JohnNBGrade B	B	186	Very hard	7.4	0.2	0.5	0.7	Mixed surface and groundwater	Outlook
67.SurreyBCGrade B	B	184	Very hard	7.7	0	0.5	0.5	Surface	Outlook
68.St. CatharinesONGrade B	B	182	Very hard	8.0	0.6	0.5	1.1	Surface	Outlook
69.DuncanBCGrade B	B	181	Very hard	6.9	0.5	0.6	1	Groundwater	Outlook
70.BramptonONGrade B	B	181	Very hard	6.9	0.5	0.6	1	Surface	Outlook
71.LongueuilQCGrade B	B	181	Very hard	7.9	0.5	0.7	1	Surface	Outlook
72.BurnabyBCGrade B	B	179	Hard	7.7	0.3	0.5	0.8	Surface	Outlook
73.QuesnelBCGrade B	B	179	Hard	7.7	0.3	0.5	0.8	Groundwater	Outlook
74.Dolbeau-MistassiniQCGrade B	B	178	Hard	7.1	0.2	0.5	0.7	Surface	Outlook
75.Thetford MinesQCGrade B	B	178	Hard	7.1	0.2	0.5	0.7	Mixed surface and groundwater	Outlook
76.EdmontonABGrade A	A	177	Hard	7.9	0	0.6	0.5	Surface	Outlook
77.Sylvan LakeABGrade B	B	177	Hard	7.0	0.1	0.7	0.6	Groundwater	Outlook
78.MidlandONGrade B	B	177	Hard	8.0	0.1	0.5	0.6	Surface	Outlook
79.WinklerMBGrade B	B	176	Hard	6.9	0	0.6	0.5	Groundwater	Outlook
80.KentvilleNSGrade B	B	176	Hard	7.9	0	0.7	0.5	Groundwater	Outlook
81.MississaugaONGrade B	B	175	Hard	7.8	0.7	0.6	1.2	Surface	Outlook
82.Spruce GroveABGrade B	B	174	Hard	7.7	0.6	0.5	1.1	Surface	Outlook
83.YellowknifeNTGrade B	B	174	Hard	7.7	0.6	0.5	1.1	Surface	Outlook
84.North BattlefordSKGrade B	B	174	Hard	7.2	0.6	0.6	1.1	Surface	Outlook
85.DrummondvilleQCGrade B	B	173	Hard	7.6	0.5	0.7	1	Surface	Outlook
86.SteinbachMBGrade B	B	171	Hard	6.9	0.3	0.6	0.8	Groundwater	Outlook
87.WeyburnSKGrade B	B	171	Hard	7.4	0.3	0.5	0.8	Surface	Outlook
88.SudburyONGrade A	A	168	Hard	7.1	0	0.5	0.5	Mixed surface and groundwater	Outlook
89.AlmaQCGrade A	A	168	Hard	8.1	0	0.6	0.5	Surface	Outlook
90.NelsonBCGrade A	A	167	Hard	7.0	0.7	0.7	1.2	Surface	Outlook
91.CharlottetownPEGrade B	B	167	Hard	7.8	0.4	0.6	0.9	Groundwater	Outlook
92.High RiverABGrade A	A	165	Hard	7.8	0.5	0.6	1	Groundwater	Outlook
93.StrathmoreABGrade A	A	165	Hard	6.8	0.5	0.5	1	Surface	Outlook
94.Rouyn-NorandaQCGrade A	A	164	Hard	8.2	0.4	0.7	0.9	Surface	Outlook
95.Fort McMurrayABGrade A	A	162	Hard	7.0	0.2	0.7	0.7	Surface	Outlook
96.SarniaONGrade A	A	162	Hard	8.0	0.2	0.5	0.7	Surface	Outlook
97.CambridgeONGrade C	C	156	Hard	7.4	0.4	0.5	0.9	Mixed surface and groundwater	Outlook
98.VaughanONGrade C	C	156	Hard	6.9	0.4	0.6	0.9	Surface	Outlook
99.WoodstockONGrade C	C	155	Hard	7.3	0.3	0.7	0.8	Groundwater	Outlook
100.Salaberry-de-ValleyfieldQCGrade C	C	154	Hard	7.2	0.2	0.6	0.7	Surface	Outlook
101.Prince RupertBCGrade C	C	152	Hard	7.5	0	0.6	0.5	Surface	Outlook
102.LethbridgeABGrade B	B	151	Hard	7.9	0	0.7	0.5	Surface	Outlook
103.BrandonMBGrade C	C	150	Hard	6.9	0.4	0.6	0.9	Surface	Outlook
104.WhitehorseYTGrade A	A	149	Hard	7.7	0.4	0.5	0.9	Groundwater	Outlook
105.VernonBCGrade B	B	148	Hard	7.6	0.4	0.7	0.9	Surface	Outlook
106.EstevanSKGrade B	B	143	Hard	7.1	0.7	0.5	1.2	Surface	Outlook
107.Prince GeorgeBCGrade B	B	141	Hard	7.9	0.5	0.7	1	Groundwater	Outlook
108.SquamishBCGrade B	B	139	Hard	7.7	0.3	0.5	0.8	Groundwater	Outlook
109.AbbotsfordBCGrade B	B	138	Hard	7.6	0.2	0.7	0.7	Mixed surface and groundwater	Outlook
110.KenoraONGrade B	B	138	Hard	7.1	0.2	0.5	0.7	Surface	Outlook
111.Portage la PrairieMBGrade B	B	137	Hard	8.0	0.1	0.5	0.6	Surface	Outlook
112.AmosQCGrade B	B	137	Hard	7.5	0.1	0.6	0.6	Groundwater	Outlook
113.KamloopsBCGrade B	B	134	Hard	7.2	0.6	0.6	1.1	Surface	Outlook
114.Powell RiverBCGrade B	B	134	Hard	7.2	0.6	0.6	1.1	Surface	Outlook
115.RimouskiQCGrade B	B	134	Hard	7.7	0.6	0.5	1.1	Surface	Outlook
116.PembrokeONGrade B	B	133	Hard	7.1	0.5	0.5	1	Surface	Outlook
117.TimminsONGrade B	B	133	Hard	7.1	0.5	0.5	1	Surface	Outlook
118.LachuteQCGrade B	B	133	Hard	7.1	0.5	0.5	1	Groundwater	Outlook
119.CornwallONGrade B	B	130	Hard	7.3	0.2	0.7	0.7	Surface	Outlook
120.BarrieONGrade A	A	129	Hard	7.2	0.1	0.6	0.6	Mixed surface and groundwater	Outlook
121.NanaimoBCGrade A	A	127	Hard	8.0	0.7	0.5	1.2	Surface	Outlook
122.Campbell RiverBCGrade A	A	125	Hard	7.3	0.5	0.7	1	Surface	Outlook
123.TorontoONGrade C	C	121	Hard	7.5	0.5	0.6	1	Surface	Outlook
124.KelownaBCGrade A	A	120	Hard	6.9	0.1	0.6	0.6	Surface	Outlook
125.TrailBCGrade A	A	120	Hard	6.8	0	0.5	0.5	Mixed surface and groundwater	Outlook
126.Corner BrookNLGrade A	A	120	Hard	7.3	0	0.7	0.5	Surface	Outlook
127.HamiltonONGrade B	B	120	Hard	7.7	0	0.5	0.5	Mixed surface and groundwater	Outlook
128.LevisQCGrade A	A	120	Hard	6.8	0	0.5	0.5	Surface	Outlook
129.MontrealQCGrade B	B	120	Hard	7.0	0.1	0.7	0.6	Surface	Outlook
130.CanmoreABGrade C	C	119	Moderate	7.7	0.7	0.5	1.2	Mixed surface and groundwater	Outlook
131.IqaluitNUGrade C	C	119	Moderate	7.2	0.7	0.6	1.2	Surface	Outlook
132.LondonONGrade B	B	119	Moderate	7.3	0.4	0.7	0.9	Surface	Outlook
133.PetawawaONGrade C	C	118	Moderate	8.1	0.6	0.6	1.1	Surface	Outlook
134.LeducABGrade C	C	117	Moderate	7.5	0.5	0.6	1	Surface	Outlook
135.NorfolkONGrade C	C	115	Moderate	7.3	0.3	0.7	0.8	Mixed surface and groundwater	Outlook
136.KingstonONGrade A	A	114	Moderate	6.8	0.5	0.5	1	Surface	Outlook
137.WetaskiwinABGrade C	C	112	Moderate	7.0	0	0.7	0.5	Surface	Outlook
138.ThompsonMBGrade C	C	110	Moderate	7.8	0.6	0.6	1.1	Surface	Outlook
139.WindsorONGrade C	C	110	Moderate	7.8	0.6	0.6	1.1	Surface	Outlook
140.TerraceBCGrade B	B	108	Moderate	8.1	0.4	0.6	0.9	Groundwater	Outlook
141.FrederictonNBGrade A	A	108	Moderate	7.8	0	0.6	0.5	Groundwater	Outlook
142.ShawiniganQCGrade B	B	108	Moderate	7.1	0.4	0.5	0.9	Surface	Outlook
143.AirdrieABGrade B	B	106	Moderate	7.4	0.2	0.5	0.7	Surface	Outlook
144.CampbelltonNBGrade B	B	106	Moderate	7.9	0.2	0.7	0.7	Surface	Outlook
145.OrilliaONGrade B	B	106	Moderate	6.9	0.2	0.6	0.7	Surface	Outlook
146.Elliot LakeONGrade B	B	105	Moderate	7.8	0.1	0.6	0.6	Surface	Outlook
147.Salmon ArmBCGrade B	B	103	Moderate	8.1	0.7	0.6	1.2	Surface	Outlook
148.LloydminsterSKGrade B	B	103	Moderate	7.6	0.7	0.7	1.2	Surface	Outlook
149.Grande PrairieABGrade B	B	102	Moderate	8.0	0.6	0.5	1.1	Surface	Outlook
150.Rivière-du-LoupQCGrade B	B	100	Moderate	6.8	0.4	0.5	0.9	Mixed surface and groundwater	Outlook
151.OakvilleONGrade B	B	99	Moderate	8.2	0.3	0.7	0.8	Surface	Outlook
152.RichmondBCGrade B	B	98	Moderate	8.1	0.2	0.6	0.7	Surface	Outlook
153.ChilliwackBCGrade B	B	97	Moderate	7.0	0.1	0.7	0.6	Groundwater	Outlook
154.CowansvilleQCGrade B	B	96	Moderate	7.4	0	0.5	0.5	Surface	Outlook
155.Saint-HyacintheQCGrade B	B	94	Moderate	8.2	0.6	0.7	1.1	Surface	Outlook
156.OshawaONGrade B	B	93	Moderate	7.6	0.5	0.7	1	Surface	Outlook
157.CobourgONGrade B	B	91	Moderate	7.9	0.3	0.7	0.8	Surface	Outlook
158.Williams LakeBCGrade B	B	90	Moderate	6.8	0.2	0.5	0.7	Groundwater	Outlook
159.North BayONGrade B	B	90	Moderate	7.3	0.2	0.7	0.7	Surface	Outlook
160.CranbrookBCGrade A	A	89	Moderate	7.2	0.1	0.6	0.6	Surface	Outlook
161.Sorel-TracyQCGrade A	A	86	Moderate	7.4	0.6	0.5	1.1	Surface	Outlook
162.LadysmithBCGrade A	A	85	Moderate	7.8	0.5	0.6	1	Surface	Outlook
163.ParksvilleBCGrade A	A	83	Moderate	8.1	0.3	0.6	0.8	Mixed surface and groundwater	Outlook
164.WinnipegMBGrade C	C	81	Moderate	7.9	0.7	0.7	1.2	Surface	Outlook
165.TillsonburgONGrade A	A	81	Moderate	6.9	0.1	0.6	0.6	Groundwater	Outlook
166.Thunder BayONGrade C	C	42	Soft	7.5	0.5	0.6	1	Surface	Outlook
167.St. John'sNLGrade B	B	25	Soft	6.9	0.2	0.6	0.7	Surface	Outlook
168.MonctonNBGrade C	C	24	Soft	8.0	0.5	0.5	1	Surface	Outlook
169.VancouverBCGrade C	C	22	Soft	7.6	0.1	0.7	0.6	Surface	Outlook
170.OttawaONGrade C	C	21	Soft	7.6	0	0.5	0.5	Surface	Outlook
171.HalifaxNSGrade B	B	20	Soft	7.6	0.5	0.5	1	Mixed surface and groundwater	Outlook
172.VictoriaBCGrade B	B	17	Soft	7.6	0.1	0.6	0.6	Surface	Outlook

Coverage

Water Quality and Supply Across Canada

Hardness and chemistry from municipal reports, with source waters, treatment plants, and distribution notes on every city page.

172

Cities tracked

13 provinces and territories

172

Supply profiles

121 surface · 30 groundwater · 21 mixed

172

Cited source links

172 with named source waters

Direct municipal tier

143 regional estimates · sync 2026-07-22

Comprehensive supply and treatment research sits alongside the graded chemistry: each city page names how the system draws water, which plants treat it, and how distribution is described in utility publications. Research method · Data sources.

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Very hard water. Whole-house softeners are the high-ticket fit; salt and test kits support the install.

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Drinking water filters and test kits

Pitcher and under-sink filters, plus hardness strips and TDS meters for tap checks.

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Softener guide · Filter guide · Test kits · Hardness guide

Source water

Supply Types

Every city page states whether the municipal system draws surface water, groundwater, or a mix, with named source waters when utilities publish them.

121

Surface water

Rivers, lakes, and reservoirs. Treatment usually includes coagulation, filtration, and disinfection before distribution.

Airdrie · Bow River, Elbow River
Baie-Comeau · Rivière Manicouagan
Brampton · Lake Ontario

Groundwater

Wellfields and aquifers. Often harder mineral content; some systems are GUDI (groundwater under the direct influence of surface water).

Amos · Esker Saint-Mathieu-Berry (municipal drains / wells)
Charlottetown · Winter River watershed groundwater (municipal wellfields)
Chilliwack · Sardis-Vedder Aquifer, Marble Hill Aquifer

Mixed surface and groundwater

Utilities that blend lake or river water with wells, or that switch seasonally between sources.

Abbotsford · Norrish Creek (Dickson Lake), Cannell Lake
Barrie · Lake Simcoe (Kempenfelt Bay), Deep aquifer groundwater wells
Cambridge · Groundwater aquifers (Region of Waterloo wells), Grand River

Every city page names source waters where utilities publish them, with links into municipal reports. How to read supply notes.

Treatment

From Plant to Tap

City pages list treatment plants and distribution notes drawn from utility publications.

Municipal systems move water from the source through a treatment plant (or plants), into transmission mains and reservoirs, then into neighbourhood distribution. Plant names and notes on each city page come from the same cited materials as the supply type, not from guessed process flowsheets.

Typical steps include screening or aeration, coagulation and settling where needed, filtration, and disinfection (often free chlorine). Corrosion control and fluoride adjustment appear where the utility practices them. Open a city profile for the plants that serve that municipality.

Browse cities by province · Data sources

From source to sink

How drinking water reaches your tap

Reading the numbers

Hardness and Lead

Hardness describes dissolved minerals. Lead is assessed against a Health Canada maximum.

Hardness (mg/L as CaCO₃)

Health Canada does not set a maximum acceptable concentration for hardness. Classes on city pages follow common treatment convention: soft under 60, moderate 60 to 120, hard 120 to 180, very hard above 180. Harder water often means more scale in heaters and less soap lather; it is not a safety score on its own.

Soft · under 60 mg/L
Moderate · 60 to 120 mg/L
Hard · 120 to 180 mg/L
Very hard · above 180 mg/L

Example class for a 200 mg/L reading: Very hard. Full hardness primer

Lead (μg/L)

City pages compare lead to Health Canada's maximum acceptable concentration of 5 μg/L. Lead at the tap can differ from the plant outlet when older service lines or premise plumbing contribute. A municipal average is a community signal, not a measurement of your kitchen tap.

Letter grades also weigh pH, fluoride, and free chlorine against guideline ranges. Active advisories override routine parameter reading for immediate safety decisions; see boil water advisories.

Confidence

Data Tiers

Every city page carries a tier badge so you can see whether the hardness and chemistry figures come from a direct municipal report or a regional estimate.

Direct municipal data

Parameters taken from that city's or utility's published water quality report. These pages are indexable and preferred for YMYL comparisons.

143

Regional estimate

Best available figure until a direct municipal report is ingested. Pages stay labeled and are not promoted as verified plant lab results. Supply profiles may still name sources and plants from separate research.

Supply-profile research confidence across the atlas: 130 high, 42 medium, 0 low. Details on methodology.

Reading the scale

Water Quality Grade

Letter grades from Health Canada guideline compliance, with hardness and lead compared to provincial averages.

Water quality grade

Good

Graded against Health Canada drinking water guidelines

Lead within guidelinepH in range

Hardness vs provincial average106 mg/L · prov. avg 168 mg/L

Lead vs provincial average0.2 μg/L · prov. avg 0.3 μg/L

Hardness

106 mg/L

Lead

0.2 μg/L

≤ 5 μg/L

7.4

6.5–8.5 range

Sample reading from Airdrie, AB. Individual city pages show full parameter tables, supply notes, and provincial comparisons.

City supply profiles

Open a Municipality

Each city page combines the latest graded parameters with supply type, named source waters where published, treatment plant names, and cited utility links. Start from a province list or jump into a supply example above.