
2018 Indiana Design and Installation Manual
25
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4.1 Sloped Subsurface Bed Design Example
FIGURE 12: PLAN VIEW – 450 GPD – A42 – BED SYSTEM – 0.5 – 15% SLOPE
SAND EXTENSION REQUIREMENT
SPECIFIED SAND
6' 0"
11' 6"
48'
49'
1' 6"
3'
7' 0"
FIGURE 13: CROSS SECTION VIEW – 450 GPD – A42 – BED SYSTEM – 0.5 – 15% SLOPE
SPECIFIED SAND
12" MIN - 19" MAX
OF COVER SOIL
MATERIAL
7' 0"
1' 6"
3'
6"
SAND EXTENSION
11' 6"
MIN 12" OF COVER
6' 0"