Water-supply wells with plausible recorded depths.
Ontario Well Records Explained
Understand what contractor-submitted Ontario well records contain, how the data is analyzed and where its limitations matter.
Search an Ontario addressMore representative than the average for skewed depths.
The provincial interquartile range.
Records containing a reported GPM value.
4–10 GPM middle range
Median recorded depth below ground
Leading sampled drilling method
Most frequent sampled material code
Historical records are observations, not predictions
Records can include location, depth, geology, construction, static water level, pumping-test results and completion year. Reporting completeness varies by record and era.
LOCAL WELL DATA
Ontario well records by region
Review traceable local statistics, maps and individual historical well observations.
Muskoka well records12,012 recordsMedian 205 ft →Bracebridge well records1,790 recordsMedian 240 ft →Huntsville well records4,125 recordsMedian 200 ft →Gravenhurst well records1,337 recordsMedian 190 ft →Haliburton well records9,366 recordsMedian 164 ft →Kawartha Lakes well records17,996 recordsMedian 50 ft →Barrie well records140 recordsMedian 112 ft →Caledon well records6,432 recordsMedian 84 ft →Simcoe County well records40,463 recordsMedian 82 ft →Peterborough well records22,447 recordsMedian 65 ft →Parry Sound well records12,146 recordsMedian 186 ft →Renfrew County well records18,059 recordsMedian 135 ft →Grey County well records16,762 recordsMedian 102 ft →Bruce County well records12,450 recordsMedian 110 ft →Prince Edward County well records6,542 recordsMedian 50 ft →Northumberland County well records15,345 recordsMedian 67 ft →Durham Region well records20,528 recordsMedian 78 ft →Ottawa well records35,186 recordsMedian 100 ft →Niagara Region well records8,039 recordsMedian 56 ft →Waterloo Region well records8,762 recordsMedian 115 ft →Dufferin County well records7,031 recordsMedian 119 ft →York Region well records25,200 recordsMedian 98 ft →Greater Toronto Area well records63,277 recordsMedian 82 ft →Hastings County well records20,623 recordsMedian 68 ft →Frontenac County well records19,621 recordsMedian 95 ft →Lanark County well records17,855 recordsMedian 95 ft →Wellington County well records16,850 recordsMedian 126 ft →Leeds and Grenville well records27,447 recordsMedian 90 ft →London and Middlesex well records14,270 recordsMedian 72 ft →Hamilton well records13,630 recordsMedian 57 ft →Stormont, Dundas and Glengarry well records15,808 recordsMedian 80 ft →Oxford County well records9,394 recordsMedian 103 ft →Halton Region well records9,244 recordsMedian 66 ft →Lennox and Addington well records9,213 recordsMedian 65 ft →Prescott and Russell well records9,654 recordsMedian 80 ft →Sudbury District well records8,846 recordsMedian 144 ft →Norfolk County well records8,728 recordsMedian 40 ft →Huron County well records8,100 recordsMedian 142 ft →Nipissing District well records8,037 recordsMedian 182 ft →Thunder Bay District well records7,506 recordsMedian 128 ft →Algoma District well records7,035 recordsMedian 120 ft →Brant County well records6,845 recordsMedian 60 ft →Perth County well records6,484 recordsMedian 157 ft →Chatham-Kent well records6,339 recordsMedian 72 ft →Elgin County well records6,235 recordsMedian 75 ft →Lambton County well records5,246 recordsMedian 77 ft →Essex County well records5,146 recordsMedian 101 ft →Peel Region well records8,305 recordsMedian 78 ft →Cochrane District well records5,346 recordsMedian 124 ft →Kenora District well records3,917 recordsMedian 145 ft →Timiskaming District well records2,935 recordsMedian 175 ft →Haldimand County well records2,412 recordsMedian 55 ft →Rainy River District well records2,276 recordsMedian 93 ft →Manitoulin District well records1,805 recordsMedian 84 ft →South Frontenac well records9,144 recordsMedian 100 ft →Georgina well records5,542 recordsMedian 63 ft →Innisfil well records4,864 recordsMedian 68 ft →Stouffville well records4,625 recordsMedian 98 ft →King Township well records4,194 recordsMedian 155 ft →Uxbridge well records3,959 recordsMedian 99 ft →Tiny Township well records3,885 recordsMedian 92 ft →Halton Hills well records3,548 recordsMedian 74 ft →Milton well records3,344 recordsMedian 65 ft →East Gwillimbury well records3,121 recordsMedian 82 ft →Orillia well records3,075 recordsMedian 72 ft →Kingston well records2,917 recordsMedian 71 ft →Muskoka Lakes well records2,324 recordsMedian 225 ft →Lake of Bays well records1,600 recordsMedian 220 ft →Minden Hills well records1,463 recordsMedian 150 ft →