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Flooded Basement Help in Babylon, NY
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Water coming up through the basement floor or walls? Groundwater under Babylon is only about 6 ft down, close enough to a basement floor to seep in on a dry day. Call and we'll connect you with a local specialist. Acting fast limits the damage.
- You call Tell us what you're seeing
- We connect you With a local specialist covering Babylon
- They arrange A visit with you
- Water table 6 ft downmeasured under developed land
- Basement floor ~8 fttypical depth, not measured
- Seeps in at the floor-wall jointgroundwater pressure, no rain needed
Babylon at a glanceWhat drives basement flooding here
Flood risk: Very High- water table depth
- 6ft
- of developed area in FEMA zone AE
- 24.5%
- of homes built before 1970
- 76%
Why basement flooding happens in Babylon
A basement floor sits eight or nine feet down, and under Babylon standing groundwater sits roughly 6 ft down. Concrete is porous, the pressure is constant, and a dry spell is the only thing keeping most of them dry.
Separately from groundwater, about 24.5% of Babylon's developed area falls inside the FEMA AE (100-yr floodplain) flood zone. Surface flooding and seepage are different failure modes and a basement can get both.
Downspouts ending at the foundation put hundreds of gallons directly against the wall in one storm; moving that discharge away is cheap, and in Babylon it takes one source of water off a wall that may already sit near groundwater.
Where the water enters says what the fix is. Seepage tracks the weather and shows along the base of the walls; a plumbing failure does not care whether it rained. Establishing which one is happening in Babylon comes before any decision about waterproofing.
Being on the water changes the diagnosis for a Babylon basement: the groundwater beneath it has a daily cycle, which is why an intermittent leak with no rainfall behind it is not a mystery.
Check the policy before assuming. Groundwater seepage sits in the gap between homeowners cover and NFIP, and in Babylon — 24.5% of developed area in FEMA zone AE (100-yr floodplain) — that gap matters more than the flood map suggests, because groundwater sits close under many of its basements.
For context on flood damage in the area: since 1978, ZIP 11702 has recorded 2,715 NFIP flood insurance claims, with $131,610,436 paid. That figure covers the whole ZIP code, not Babylon alone (why we report it that way), and NFIP policies do not cover groundwater seepage or a failed sump pump.
More local measurements for Babylon
- Soil drainage
- Well drained
- Ground elevation
- 12 ft
- Hurricane Sandy high-water mark
- 6.6 ft The one mark USGS surveyed in Babylon after the 2012 storm, in feet above the NAVD88 datum. Babylon's ground elevation on this page uses the same datum, so the two can be compared directly.
- Home heating fuel
- 25% fuel oil Fuel oil heats 25% of occupied homes in Babylon and utility gas 66%, by Census estimate (oil within 6 points). Where a basement holds an oil tank, floodwater can float or tip it and spill oil. New York's DEC says to remove the oil before pumping out the water, and never to pump it into the yard.
- Nearest fire department
- Babylon Fire Department
Babylon's land area
- FEMA coastal wave zone (VE)
- FEMA 100-year floodplain (A, AE)
- The flood-zone figure above says how much of the land these zones cover.
Sources: FEMA NFHL / NOAA SLOSH, US Census ACS, USDA SSURGO, Suffolk County sewer districts — measured over developed land only. Verified 2026-10-18. How we measured this. Check them at source: FEMA flood map for Babylon · Census profile for Babylon · Permitted wastewater facilities in ZIP 11702
Streets wholly inside the flood zone
The flood map puts 974 of Babylon's 4,572 address points inside a special flood hazard area: 971 in zone AE and 3 in zone VE. On 28 streets every address is inside it; the largest:
- Annuskemunnica Rd — all 70 addresses
- Araca Rd — all 54 addresses
- Bayview Ave — all 54 addresses
- Lighthouse Rd — all 45 addresses
- Lee Ave — all 42 addresses
- E Shore Dr — all 34 addresses
- Yacht Club Rd — all 29 addresses
- S Bay Dr — all 26 addresses
Streets with the most addresses in the zone · How streets are counted
How Babylon compares nearby
For basement water, the clearest difference between Babylon and the 4 areas around it is more land in a flood zone: 24.5% of developed land in a flood zone here, against a 6.4% average across them.
| Area | Water table | In flood zone | Built pre-1970 |
|---|---|---|---|
| Babylon | 6 ft | 24.5% | 76% |
| Lindenhurst | 6 ft | 12.2% | 78% |
| North Babylon | 10 ft | 0.4% | 75% |
| West Babylon | 12 ft | 6.2% | 72% |
| West Islip | 8 ft | 6.9% | 75% |
Neighbors are the nearest areas. How we measured this.
Basement Flooding help near Great South Bay, Argyle Lake and Southards Pond
About 76% of Babylon's homes were built before 1970, and pipes from that era, galvanized steel and cast iron, corrode from the inside until a joint or a section gives way. Babylon is on public sewer, which means sewage in the house comes from a blocked house line or a street main pushing back, and either way the cleanup is the same: remove, disinfect, dry.
When you call, we connect you with a local water damage specialist who will extract standing water, establish how far it traveled into walls and insulation, and dry the structure to a measured moisture content.
This page covers Babylon, ZIP 11702.
Signs you need basement flooding help now
- Water seeping through your floor drain or walls
- Visible standing water on the basement floor
- A strong musty or sewage smell
- Damp walls or white mineral deposits (efflorescence)
- Sump pump running constantly or failing
Who to call for a flooded basement in Babylon
(631) 440-4144Tell us what you are seeing. We connect you with a local specialist covering Babylon who handles basement flooding.
Frequently asked questions about basement flooding in Babylon
Why do basements flood in Babylon?
The measured water table under Babylon sits about 6 ft below the surface in well drained soil. Below the water table the ground is saturated whatever the soil, and that water presses against foundation walls and finds the floor-to-wall joint, cracks, and penetrations — which is why basements here can take on water without any surface flooding at all.
Is Babylon in a flood zone?
Babylon's FEMA-mapped zone is AE (100-yr floodplain), covering about 24.5% of the developed area, per FEMA's flood map (NFHL). Note that the flood zone describes surface flooding — groundwater seepage into a basement can happen well outside it.
Are older homes in Babylon more at risk?
76% of Babylon's housing predates 1970 and the average home is about 70 years old. Foundations from that period generally predate exterior waterproofing membranes, so seepage tends to show up there first.