FLOOD FORM
12-17 31 DRIVE

Queens, 11106

Resilience
Grade

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Property Summary

High Compound Flood Exposure index. Stormwater flooding is the primary exposure factor for this property. Moderate infiltration potential — standard systems such as drywells and French drains are viable. Estimated groundwater depth of about 5' indicates a persistently shallow water table with elevated seepage potential into below-grade spaces. Property drains to the BB-029 combined sewer outfall. Site overlaps a buried historic stream — groundwater levels may rise rapidly during rain events independent of the resting water table depth; subsurface investigation is recommended before any infiltration work.

Property TypeMulti-Family Residential, Built 1901

Building Footprint792 SF

Roof Runoff 1" Rain494 Gallons

Elevation13'

Groundwater Depth5'

SewershedBB-029

Flood Exposure TypeScore

Sewer BackupMinimal

StormwaterHigh

GroundwaterHigh

CoastalHigh

Infiltration CriteriaValue

Lot Impervious Area6,847 SF

Block Impervious %80%

Soil Infiltration Rate3 IN/HR

Available Area3,429 SF

Infiltration RatingModerate