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To estimate the time (''t'') to fully drain the facility:  
 
To estimate the time (''t'') to fully drain the facility:  
 
:<math>t=\frac{V_{R}A_{p}} {q'P}ln\left [ \frac{\left (d+ \frac{A_{p}}{P} \right )}{\left(\frac{A_{p}}{P}\right)}\right]</math>
 
:<math>t=\frac{V_{R}A_{p}} {q'P}ln\left [ \frac{\left (d+ \frac{A_{p}}{P} \right )}{\left(\frac{A_{p}}{P}\right)}\right]</math>
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==Final step==
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Check the mounding of groundwater beneath the facility to ensure no incompatibility with nearby sensitive receptors.
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{{Clickable button|[[File:Hantush.xlsx|Download mounding calculator(.xlsx)]]}}
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Note that some adaptations have been made to this tool, from the original [https://pubs.usgs.gov/sir/2010/5102/ hosted by the USGS].
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