Home inspectors
Site Drainage Addendum
Two decisions, one document.
$25
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What is on it
22 lines, three maps and charts, and one page of answers. Anything we cannot answer for a property says so rather than being left blank.
Address and building footprint area
Measurement date
Building measurements provided
Ground fall across the building footprint
Share of the footprint not measured
Perimeter table: ground fall in the first 10 ft
Perimeter positions sloping toward the building
Soil type
Soil drainage class
Hydrologic soil group (A-D)
Depth to seasonal high water table
Soil limitation class for homes with basements
Share of this soil type prone to ponding
Flooding frequency
Design-storm 24-hour rainfall depth
Design-storm rainfall availability
Flood zone
Levee dependence, and levee overtopping chance
Years with a paid flood claim in this block group
Subwatershed, and distance to nearest stream
Impervious surface share around the house
Place and county
What it is not
- No statement that this property will flood, or that this basement takes water.
- No score, grade, rank or triage.
- No finding of a code violation.
- No repair prescription.
- No elevation certificate, and no height above base flood elevation presented as one.
- No opinion on anything not modeled: gutters, downspouts, drain tile, subsurface drains, sewers, sump pumps, waterproofing membranes, or ground under decks, porches and overhangs.