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Line 94:
Line 94: − + + − An additional round of tests should be conducted at 1.5 metres depth below the proposed bottom elevation of the practice if there is significant variation in soil texture, geologic formation, water table elevation, top of bedrock elevation or bedrock type compared to conditions at the proposed bottom elevation.<br>
→Sampling
* Test locations should be spaced equidistant from one another.
* Test locations should be spaced equidistant from one another.
* Make a minimum of seven (7) measurements (i.e. tests) for each test location (i.e., each test pit or borehole).
* Make a minimum of seven (7) measurements (i.e. tests) for each test location (i.e., each test pit or borehole).
* To calculate the median infiltration rate of the native soil, discard the highest and lowest values obtained from each test location and calculate the median from the remaining measurements.
* An additional round of tests should be conducted at 1.5 metres depth below the proposed bottom elevation of the practice if there is significant variation in geologic formation, soil texture or bulk density compared to conditions at the proposed bottom elevation.<br>
* To calculate the median infiltration rate of the native soil at the depth tested, discard the highest and lowest values obtained from each test location and calculate the median from the remaining measurements at the depth tested.
'''The recommendations above are guidelines'''
'''The recommendations above are guidelines'''
Keep in mind that excessive testing and disturbance of the site prior to construction is not recommended.<ref>Christopher B. Burke Engineering LLC. (2009). Soil Infiltration Testing Protocol SOIL INFILTRATION TESTING PROTOCOL Purpose of this Protocol Who Should Conduct Testing. Retrieved from https://www.in.gov/ocra/files/Appendix%20F%20-%20Soil%20Infiltration%20Testing%20Protocol.pdf</ref>
Keep in mind that excessive testing and disturbance of the site prior to construction is not recommended.<ref>Christopher B. Burke Engineering LLC. (2009). Soil Infiltration Testing Protocol SOIL INFILTRATION TESTING PROTOCOL Purpose of this Protocol Who Should Conduct Testing. Retrieved from https://www.in.gov/ocra/files/Appendix%20F%20-%20Soil%20Infiltration%20Testing%20Protocol.pdf</ref>
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[[Category:Infiltration]]
[[Category:Infiltration]]