FLOOD FORM
23-06 30 AVENUE

Queens, 11102

Resilience
Grade

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Property Summary

Moderate 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. Soil borings about 70' away found no groundwater to a depth of 37' in 2024. Soil records near this property point to deep fill soil; a percolation test is recommended before any infiltration work. 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 TypeOne Family Residential, Built 1920

Building Footprint740 SF

Roof Runoff 1" Rain461 Gallons

Elevation25'

Groundwater Depth37'

SewershedBB-029

Flood Exposure TypeScore

Sewer BackupLow

StormwaterModerate

GroundwaterMinimal

CoastalMinimal

Infiltration CriteriaValue

Lot Impervious Area1,925 SF

Block Impervious %83%

Soil Infiltration Rate3 IN/HR

Available Area692 SF

Infiltration RatingModerate