219
edits
Changes
Jump to navigation
Jump to search
Line 121:
Line 121: + + − {{:Monitoring wells: Installation}}+ + + + + + + + + + + + + +
→Monitoring wells
==Monitoring wells==
==Monitoring wells==
[[File:monitoring-well-subgrade.jpg|400px|thumb|right|Monitoring well stack installed next to underdrain within the LID practice. (Photo Source: CVC, 2010)]]
[[Monitoring wells]] allow for measurement of water levels in the sub-surface components of LID practices. They are important for sampling procedures and ensuring that the LID feature are performing as intended.
'''Construction Steps:'''
#Install a cap stand at the required elevation to anchor the monitoring well.
#Wrap the perforated pipe with a geotextile sock (to prevent migration of soil into the well).
#Anchor the perforated pipe to the bottom of the LID feature.
#Install a lockable cap to the top of the standpipe to protect against vandalism.
#Install monitoring equipment (e.g., a level logger) if required.
'''Key Inspection Points:'''
*Pipe is perforated, rigid, and matches design specifications.
*Well is installed according to contract documents.
*Geotextile sock is wrapped around the perforated portion of the well.
'''Mistakes to Avoid:'''
*Incorrect sequencing: Ensure that standpipe is installed prior to backfilling with granular material.
==Storage reservoir==
==Storage reservoir==