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Provincial Groundwater Directory • 641,961 Registered Wells

Ontario Water Well Records & Hydrogeology

Access compiled provincial borehole logs, typical drilling depths, bedrock aquifers, and water quality profiles across 49 Ontario municipalities and regional districts.

Registered Wells

641,961

Government database logs

Municipalities

49

Regional reports available

Avg Median Depth

103 ft

Provincial completion benchmark

Local Drillers

10 Listed

View Ontario directory →

Municipalities in Ontario

Select any municipality to view local median depths, aquifer stratification, and filtration guidance.

Showing 49 location reports
Simcoe 45,274 wells

Aquifer: Sand & Gravel

Median depth: 83 ft View report →
Ottawa 40,094 wells

Aquifer: Limestone

Median depth: 100 ft View report →
Leeds and Grenville 29,905 wells

Aquifer: Limestone

Median depth: 91 ft View report →
York 25,352 wells

Aquifer: Sand & Gravel

Median depth: 100 ft View report →
Peterborough 24,477 wells

Aquifer: Limestone

Median depth: 66 ft View report →
Hastings 22,356 wells

Aquifer: Limestone

Median depth: 70 ft View report →
Durham 21,631 wells

Aquifer: Sand & Gravel

Median depth: 78 ft View report →
Frontenac 21,179 wells

Aquifer: Crystalline Bedrock

Median depth: 97 ft View report →
Renfrew 20,687 wells

Aquifer: Crystalline Bedrock

Median depth: 139 ft View report →
Kawartha Lakes 19,887 wells

Aquifer: Limestone

Median depth: 50 ft View report →
Grey 19,444 wells

Aquifer: Limestone

Median depth: 104 ft View report →
Lanark 18,973 wells

Aquifer: Sandstone

Median depth: 95 ft View report →
Wellington 18,090 wells

Aquifer: Limestone

Median depth: 127 ft View report →
Stormont, Dundas and Glengarry 17,601 wells

Aquifer: Limestone

Median depth: 80 ft View report →
Northumberland 16,528 wells

Aquifer: Sand & Gravel

Median depth: 67 ft View report →
Middlesex 15,570 wells

Aquifer: Sand & Gravel

Median depth: 71 ft View report →
Hamilton 14,294 wells

Aquifer: Limestone

Median depth: 58 ft View report →
Parry Sound 14,079 wells

Aquifer: Crystalline Bedrock

Median depth: 190 ft View report →
Muskoka 13,632 wells

Aquifer: Crystalline Bedrock

Median depth: 205 ft View report →
Bruce 13,419 wells

Aquifer: Limestone

Median depth: 111 ft View report →
Haldimand-Norfolk 12,242 wells

Aquifer: Sand & Gravel

Median depth: 44 ft View report →
Prescott and Russell 11,067 wells

Aquifer: Limestone

Median depth: 80 ft View report →
Haliburton 10,535 wells

Aquifer: Crystalline Bedrock

Median depth: 167 ft View report →
Oxford 10,132 wells

Aquifer: Limestone

Median depth: 104 ft View report →
Lennox and Addington 10,024 wells

Aquifer: Limestone

Median depth: 65 ft View report →
Nipissing 9,679 wells

Aquifer: Crystalline Bedrock

Median depth: 188 ft View report →
Halton 9,570 wells

Aquifer: Shale

Median depth: 66 ft View report →
Waterloo 9,434 wells

Aquifer: Sand & Gravel

Median depth: 115 ft View report →
Huron 9,367 wells

Aquifer: Limestone

Median depth: 142 ft View report →
Thunder Bay 8,684 wells

Aquifer: Crystalline Bedrock

Median depth: 130 ft View report →
Niagara 8,569 wells

Aquifer: Limestone

Median depth: 57 ft View report →
Algoma 8,521 wells

Aquifer: Sand & Gravel

Median depth: 120 ft View report →
Peel 8,478 wells

Aquifer: Sand & Gravel

Median depth: 78 ft View report →
Dufferin 7,515 wells

Aquifer: Limestone

Median depth: 119 ft View report →
Sudbury 7,504 wells

Aquifer: Crystalline Bedrock

Median depth: 164 ft View report →
Brant 7,353 wells

Aquifer: Sand & Gravel

Median depth: 61 ft View report →
Prince Edward 7,236 wells

Aquifer: Limestone

Median depth: 50 ft View report →
Perth 6,973 wells

Aquifer: Limestone

Median depth: 158 ft View report →
Chatham-Kent 6,911 wells

Aquifer: Shale

Median depth: 72 ft View report →
Elgin 6,877 wells

Aquifer: Sand & Gravel

Median depth: 75 ft View report →
Cochrane 5,746 wells

Aquifer: Crystalline Bedrock

Median depth: 125 ft View report →
Lambton 5,465 wells

Aquifer: Shale

Median depth: 76 ft View report →
Essex 5,377 wells

Aquifer: Limestone

Median depth: 101 ft View report →
Kenora 4,649 wells

Aquifer: Crystalline Bedrock

Median depth: 152 ft View report →
Timiskaming 3,508 wells

Aquifer: Limestone

Median depth: 175 ft View report →
Rainy River 2,733 wells

Aquifer: Crystalline Bedrock

Median depth: 101 ft View report →
Greater Sudbury / Grand Sudbury 2,489 wells

Aquifer: Crystalline Bedrock

Median depth: 108 ft View report →
Manitoulin 2,287 wells

Aquifer: Limestone

Median depth: 94 ft View report →
Toronto 564 wells

Aquifer: Sand & Gravel

Median depth: 89 ft View report →

Communities in Ontario