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*[[Permeameter]]
*[[Permeameter]]
*Double ring infiltrometer
*[[Double ring infiltrometer]]
*Cased borehole ([[percolation test]])
*[[Percolation test]]
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*[[Grain size analysis]] (Hazen)
*[[Grain size analysis]] (Hazen)
*Soil textural classification
*Soil textural classification
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==Becoming familiar with the different measurement practices==
STEP have produced a free online module to provide some basic information on infiltration test methods. Register [https://sustainabletechnologies.ca/events/design-infiltration-rate-e-learning-course/ '''HERE''']
==Safety correction==
==Safety correction==
The measured or calculated infiltration rate must be divided by a value between 2 and 3 before use in design<ref>Design criteria for infiltration. (2018, February 14). Minnesota Stormwater Manual, . Retrieved 00:16, March 14, 2018 from https://stormwater.pca.state.mn.us/index.php?title=Design_criteria_for_infiltration&oldid=35583.</ref>
The measured or calculated infiltration rate must be divided by a value between 2 and 3 before use in design<ref>Design criteria for infiltration. (2018, February 14). Minnesota Stormwater Manual, . Retrieved 00:16, March 14, 2018 from https://stormwater.pca.state.mn.us/index.php?title=Design_criteria_for_infiltration&oldid=35583.</ref>
==Planning for testing==
==Planning for testing==
===Background Evaluation===
===Background Evaluation===
Prior to performing testing and developing a detailed site plan, existing site conditions should be inventoried and mapped including, but not limited to:
Prior to performing testing and developing a detailed site plan, existing site conditions should be inventoried and mapped including, but not limited to:
===Sampling===
===Sampling===
[[File:Test_pit.jpg|thumb|Infiltration testing should be carried out at relevant stages down through the profile of a test pit.]]
The number of test pits or soil borings varies depending on site conditions and the proposed development plan. General guidelines are as follows:
The number of test pits or soil borings varies depending on site conditions and the proposed development plan. General guidelines are as follows: