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THE HYDROGEOLOGY OF SOUTHERN ONTARIO
(SECOND EDITION)

Prepared by the Environmental Monitoring and Reporting Branch, Ministry of the Environment, in cooperation with S. Singer (consultant) Toronto 2003 Ontario


This report describes, on a regional scale, the occurrence, distribution, quantity and quality of groundwater in southern Ontario. The report is based on data obtained from the Water Well Information System (WWIS) of the Ontario Ministry of Environment (MOE) and it makes use of available information related to the physiography, geology, and hydrogeology of the province. The report consists of 200 pages of text and includes three appendices, 48 maps and figures, and 15 graphs. It also lists more than 190 groundwater references produced over the past 30 years.

Each figures of this report can be accessed by clicking on the links in the LIST OF ILLUSTRATIONS below.

COMPLETE REPORT / TABLES
4800e The Hydrogeology of Southern Ontario - (Second Edition) PDF format
Text: This document contains text portion of the report. PDF format
Tables: This document contains the tables of the report. PDF format
LIST OF ILLUSTRATIONS
Figure 1 Location of the study area. PDF format
Figure 2 Map of southern Ontario showing the counties included in the study. PDF format
Figure 3 Physiographic regions in southern Ontario (from Thurston et al. 1992). PDF format
Figure 4 Major drainage basins in southern Ontario (from MNR 1984). PDF format
Figure 5 Mean annual precipitation (a), snowfall (b), evapotranspiration (c), and runoff (d) in southern Ontario (from MNR 1984). PDF format
Figure 6 Locations of bedrock wells in southern Ontario. PDF format
Figure 7 Bedrock elevation in southern Ontario. PDF format
Figure 8 Ranges of specific capacities for wells completed in Precambrian rocks. PDF format
Figure 9 Bedrock hydrogeologic units in eastern Ontario. PDF format
Figure 10 Ranges of specific capacities for wells completed in the Nepean-March-Oxford Hydrogeologic Unit. PDF format
Figure 11 Ranges of specific capacities for wells completed in the Simcoe Group Hydrogeologic Unit. PDF format
Figure 12 Ranges of specific capacities for wells completed in Blue Mountain-Georgian Bay and Queenston hydrogeologic units. PDF format
Figure 13 Ranges of specific capacity values for wells completed in the Amabel-Lockport-Guelph, Salina and Bass Island hydrogeologic units. PDF format
Figure 14 Ranges of specific capacity values for wells completed in the Bois Blanc, Detroit River Group, Dundee, Hamilton Group and Kettle Point hydrogeologic units. PDF format
Figure 15 Water-yielding capabilities of bedrock hydrogeologic units in southern Ontario. PDF format
Figure 16 Correlation chart for southwestern Ontario (from Thurston et al. 1992). PDF format
Figure 17 Locations of overburden wells in southern Ontario. PDF format
Figure 18 Overburden thickness in southern Ontario. PDF format
Figure 19 Areas where sand and gravel deposits outcrop at surface in southern Ontario. PDF format
Figure 20 Overburden wells with specific capacities exceeding 10 L/min/m within the Raisin Region Conservation Authority. PDF format
Figure 21 Overburden wells with specific capacities exceeding 10 L/min/m within the South Nation Conservation Authority. PDF format
Figure 22 Overburden wells with specific capacities exceeding 10 L/min/m within the Rideau Valley Conservation Authority. PDF format
Figure 23 Overburden wells with specific capacities exceeding 10 L/min/m within the Mississippi Valley Conservation Authority. PDF format
Figure 24 Overburden wells with specific capacities exceeding 10 L/min/m within the Moira River Conservation Authority. PDF format
Figure 25 Overburden wells with specific capacities exceeding 10 L/min/m within the Oak Ridges Moraine. PDF format
Figure 26 Overburden wells with specific capacities exceeding 10 L/min/m within the Trent River basin. PDF format
Figure 27 Overburden wells with specific capacities exceeding 10 L/min/m within the Ganaraska Region Conservation Authority. PDF format
Figure 28 Overburden wells with specific capacities exceeding 10 L/min/m within the Central Lake Ontario Conservation Authority. PDF format
Figure 29 Overburden wells with specific capacities exceeding 10 L/min/m within the Metro Toronto and Region Conservation Authority. PDF format
Figure 30 Overburden wells with specific capacities exceeding 10 L/min/m within the Credit Valley Conservation Authority. PDF format
Figure 31 Overburden wells with specific capacities exceeding 10 L/min/m within the Halton Region Conservation Authority. PDF format
Figure 32 Overburden wells with specific capacities exceeding 10 L/min/m within the Hamilton Region Conservation Authority. PDF format
Figure 33 Overburden wells with specific capacities exceeding 10 L/min/m within the Lake Simcoe basin. PDF format
Figure 34 Overburden wells with specific capacities exceeding 10 L/min/m within the Severn Sound drainage area. PDF format
Figure 35 Overburden wells with specific capacities exceeding 10 L/min/m within the Nottawasaga Valley Conservation Authority. PDF format
Figure 36 Overburden wells with specific capacities exceeding 10 L/min/m within the Grey Sauble Conservation Authority. PDF format
Figure 37 Overburden wells with specific capacities exceeding 10 L/min/m within the Saugeen Valley Conservation Authority. PDF format
Figure 38 Overburden wells with specific capacities exceeding 10 L/min/m within the Maitland Valley Conservation Authority. PDF format
Figure 39 Overburden wells with specific capacities exceeding 10 L/min/m within the Ausable Bayfield Conservation Authority. PDF format
Figure 40 Overburden wells with specific capacities exceeding 10 L/min/m within the St. Clair Region Conservation Authority. PDF format
Figure 41 Overburden wells with specific capacities exceeding 50 L/min/m within the Thames River basin. PDF format
Figure 42 Overburden wells with specific capacities exceeding 10 L/min/m within the Essex Region Conservation Authority. PDF format
Figure 43 Overburden wells with specific capacities exceeding 10 L/min/m within the Kettle and Catfish Creek watersheds. PDF format
Figure 44 Overburden wells with specific capacities exceeding 10 L/min/m within the Long Point Region Conservation Authority. PDF format
Figure 45 Overburden wells with specific capacities exceeding 50 L/min/m within the Grand River Conservation Authority. PDF format
Figure 46 Overburden wells with specific capacities exceeding 10 L/min/m within the Niagara Peninsula Conservation Authority. PDF format
Figure 47 Groundwater level within the bedrock in southern Ontario. PDF format
Figure 48 Groundwater level within the overburden in southern Ontario. PDF format
Figure 49 Hydrographs of water level fluctuations in observation well W-5A (piezometers a and b) during water year 1971-1972 (from Singer 1974). PDF format
Figure 50 Static water level in well 1B during 1972 in the Blue Springs Creek watershed (from Coward and Barouch 1978). PDF format
Figure 51 Bedrock wells with natural water quality problems. PDF format
Figure 52 Percentage of samples exceeding the Aesthetic Objective for sodium (200 mg/L). PDF format
Figure 53 Percentage of samples exceeding the Aesthetic Objective for iron (0.3 mg/L). PDF format
Figure 54 Percentage of samples exceeding the Aesthetic Objective for total dissolved solids (500 mg/L). PDF format
Figure 55 Percentage of samples exceeding the Aesthetic Objective for chloride (250 mg/L). PDF format
Figure 56 Percentage of samples exceeding the Aesthetic Objective for sulphate (500 mg/L). PDF format
Figure 57 Minimum, mean and maximum levels of hardness for various bedrock hydrogeologic units. PDF format
Figure 58 Overburden wells with natural water quality problems. PDF format
Appendix I PDF format
Appendix II:
Figure A1 Transmissivity-probability graph for wells completed in Precambrian rocks. PDF format
Figure A2 Transmissivity-probability graph for wells completed in the Nepean-March-Oxford hydrogeologic unit. PDF format
Figure A3 Transmissivity-probability graph for wells completed in the Rockcliffe hydrogeologic unit. PDF format
Figure A4 Transmissivity-probability graph for wells completed in the Ottawa Group hydrogeologic unit. PDF format
Figure A5 Transmissivity-probability graph for wells completed in the Simcoe Group hydrogeologic unit. PDF format
Figure A6 Transmissivity-probability graph for wells completed in the Billings-Carlsbad-Queenston hydrogeologic unit. PDF format
Figure A7 Transmissivity-probability graph for wells completed in the Blue Mountain-Georgian Bay hydrogeologic unit. PDF format
Figure A8 Transmissivity-probability graph for wells completed in the Queenston hydrogeologic unit in central Ontario. PDF format
Figure A9 Transmissivity-probability graphs for wells completed in the Amabel, Lockport and Guelph Formations. PDF format
Figure A10 Transmissivity-probability graphs for wells completed in the Salina and Bass Island hydrogeologic units. PDF format
Figure A11 Transmissivity-probability graph for wells completed in the Bois Blanc hydrogeologic unit. PDF format
Figure A12 Transmissivity-probability graphs for wells completed in the Detroit River Group, Dundee and Hamilton Group hydrogeologic units. PDF format
Figure A13 Transmissivity-probability graph for wells completed in the Kettle Point hydrogeologic unit. PDF format
Figure A14 Specific capacity-probability graphs for wells completed in glaciofluvial deposits. PDF format
Figure A15 Specific capacity-probability graphs for wells completed in sands and gravels of glaciolacustrine, glaciomarine and marine origin. PDF format
Appendix III PDF format
Appendix IV PDF format


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Last Modified: Friday August 05 2005