
2018 Indiana Design and Installation Manual
51
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12.0 Inspection/Monitoring Port
The system shall include an Inspection/Monitoring Port designed and installed with access from the ground surface.
It shall be open and slotted at the bottom, and be void of sand or gravel to the infiltrative surface to allow visual
monitoring of standing liquid in the absorption field. The figures below depict construction and placement of the
Inspection/Monitoring Port. For beds and elevated systems, place one port per lateral. At least one inspection port
should be placed at the midpoint of a row. At the distal ends, use 90-degree elbows and extend to the surface as
an additional inspection port, capped and sealed to be watertight. One inspection port should be located downslope
in the toe as well.
FIGURE 30: MONITORING WELL FOR SAND-SOIL INTERFACE
TYPAR SOCK
TAPE OR TIE
TO PIPE
PIPE COVER
NON-PERFORATED
4" PIPE
COUPLING
PERFORATED
4" PIPE
OPEN BOTTOM
48"
36"
6"
6"
SPECIFIED SAND
GEOTEXTILE FABRIC
MINIMUM 12"
OF CLEAN FILL
7"
6"
13"
PIPE FLUSH WITH
SAND-SOIL AT
INFILTRATIVE SURFACE
Содержание GSF A42
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