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[[File:Infiltration_Testing_1.jpeg|500px|thumb|Infiltration testing with a Guelph Permeameter at a site in Glen Williams, Ontario]]
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==Four Step Process==
==Four Step Process==
==Test Pit or Soil Boring Observations==
==Test Pit or Soil Boring Observations==
Test pits or soil borings provide information regarding the soil horizons and overall soil conditions both horizontally and vertically in that portion of the site. Multiple observations can be made across a site at a relatively low cost and in a short time period.
[[Test pit|Test pits]] or [[Design infiltration rate#Sampling|soil borings]] provide information regarding the soil horizons and overall soil conditions both horizontally and vertically in that portion of the site. Multiple observations can be made across a site at a relatively low cost and in a short time period.
Test pit excavations or soil borings should extend to a depth of between 2.5 - 5 m below ground surface or until bedrock or fully saturated conditions are encountered. It is important that the tests provide information related to conditions at least 1.5 m below the proposed bottom elevation of the infiltration BMP. Test pit trenches should be benched at 1 m depth intervals for access and infiltration testing.
Test pit excavations or soil borings should extend to a depth of between 2.5 - 5 m below ground surface or until bedrock or fully saturated conditions are encountered. It is important that the tests provide information related to conditions at least 1.5 m below the proposed bottom elevation of the infiltration BMP. Test pit trenches should be benched at 1 m depth intervals for access and infiltration testing.
*Strike and dip of soil horizons.
*Strike and dip of soil horizons.
==External links==
For further information on Borehole observation and test pits please visit the following external links:
*[https://www.oakridgeswater.ca/ Oak Ridges Moraine Groundwater Management]
*[https://data.ontario.ca/dataset/borehole Northern Development, Mines, Natural Resources and Forestry's Open Data site for Geotechnical Boreholes]
*[https://data.ontario.ca/dataset/geotechnical-boreholes Northern Development, Mines, Natural Resources and Forestry's Open Data site for Geotechnical Boreholes]
*[https://open.canada.ca/data/en/dataset/f9bc91b0-598a-5986-9b18-1d163ac8551f Geological Survey of Canada's Borehole Geophysical Logs]
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[[category:Infiltration]]
[[category:Infiltration]]