Sewershed HP-018 · NYC DEP Combined Sewer Overflow Tributary Area
HP-018 - Schuylerville, Bronx
Properties in this area share the HP-018 combined sewer — during moderate-to-heavy rain, runoff can exceed pipe capacity faster than it drains, which is what drives sewer backup exposure block by block. Here’s what that looks like for Schuylerville, Bronx specifically.
HP-018 is a combined sewer area covering 247 properties in Schuylerville, Bronx. Flood Form rates 45% of them Moderate or High for stormwater exposure, and 9% for groundwater. 94% of lots have yard area that legally qualifies for on-site infiltration. Ground elevation is typically 11 ft. The median building dates to 1960.
247
Properties in sewershed
94.3%
Legally eligible for on-site infiltration
45%
Stormwater exposure: Moderate or High
9%
Groundwater exposure: Moderate or High
What sets HP-018 apart
11 ft
Median ground elevation
80%
Average impervious cover per lot
1960
Median year built
0%
Properties over a historic stream or pond
Stats computed from Flood Form’s NYC parcel data as of October 9, 2026
Common solutions for Schuylerville properties
Downspout Diversion
Redirects roof runoff away from the combined sewer and into landscaped or permeable areas on the lot.
Infiltration System
Drywells or infiltration chambers that let stormwater soak into the ground on-site instead of entering the sewer.
Detention System
Holds stormwater temporarily and releases it slowly, reducing peak flow into the combined sewer during a storm.
Drain Improvement
Upgrades yard, area, or foundation drains so water is carried away from the building instead of pooling.
Foundation Waterproofing
Protects the foundation from groundwater intrusion, relevant where groundwater exposure runs high.
Nearby sewersheds
- HP-017Schuylerville333 properties · 44% with Moderate or High stormwater exposure
- HP-019Schuylerville948 properties · 35% with Moderate or High stormwater exposure
- HP-020Schuylerville551 properties · 37% with Moderate or High stormwater exposure
- HP-022Throgs Neck481 properties · 46% with Moderate or High stormwater exposure
- HP-021Throgs Neck155 properties · 27% with Moderate or High stormwater exposure
- HP-016Schuylerville1,359 properties · 50% with Moderate or High stormwater exposure
Want to see where your specific property stands?
Get Your Property’s Flood Form