Hillview Reservoir
E56841
Hillview Reservoir is a key New York City water storage facility that serves as the final holding basin for treated water before it enters the city’s distribution system.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Hillview Reservoir canonical | 7 |
How this entity was disambiguated
This entity first appeared as the object of triple T326499 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Hillview Reservoir Context triple: [Croton water supply system, component, Hillview Reservoir]
-
A.
Amawalk Reservoir
Amawalk Reservoir is a man-made lake in Westchester County, New York, that forms part of New York City's Croton water supply system.
-
B.
Chew Reservoir
Chew Reservoir is a man-made upland water reservoir in the Peak District area of England, known for its moorland surroundings and role in regional water supply.
-
C.
Cross River Reservoir
Cross River Reservoir is a man-made lake in Westchester County, New York, that forms part of New York City's Croton water supply system.
-
D.
East Branch Reservoir
East Branch Reservoir is a man-made water supply reservoir in New York’s Croton Watershed that helps provide drinking water to New York City.
-
E.
Middle Branch Reservoir
Middle Branch Reservoir is a man-made lake in New York’s Croton Watershed that serves as part of the New York City water supply system.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Hillview Reservoir Target entity description: Hillview Reservoir is a key New York City water storage facility that serves as the final holding basin for treated water before it enters the city’s distribution system.
-
A.
Amawalk Reservoir
Amawalk Reservoir is a man-made lake in Westchester County, New York, that forms part of New York City's Croton water supply system.
-
B.
Chew Reservoir
Chew Reservoir is a man-made upland water reservoir in the Peak District area of England, known for its moorland surroundings and role in regional water supply.
-
C.
Cross River Reservoir
Cross River Reservoir is a man-made lake in Westchester County, New York, that forms part of New York City's Croton water supply system.
-
D.
East Branch Reservoir
East Branch Reservoir is a man-made water supply reservoir in New York’s Croton Watershed that helps provide drinking water to New York City.
-
E.
Middle Branch Reservoir
Middle Branch Reservoir is a man-made lake in New York’s Croton Watershed that serves as part of the New York City water supply system.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
drinking water reservoir
ⓘ
infrastructure of New York City ⓘ water storage facility ⓘ |
| capacity | approximately 900 million US gallons ⓘ |
| connectedTo |
City Tunnel No. 1
ⓘ
Tunnel No. 2 ⓘ
surface form:
City Tunnel No. 2
City Tunnel No. 3 ⓘ |
| constructionStartDate | 1913 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| distributesWaterThrough | New York City water tunnels ⓘ |
| elevation | about 295 feet above sea level ⓘ |
| function |
final storage basin for treated water before distribution
ⓘ
regulates water flow into New York City distribution mains ⓘ |
| hasFeature |
concrete inlet and outlet structures
ⓘ
earthen embankment dams ⓘ two main basins ⓘ |
| inception | 1915 ⓘ |
| isCriticalInfrastructureFor | New York City drinking water supply ⓘ |
| isSubjectOf |
New York City water supply planning documents
ⓘ
infrastructure security assessments ⓘ |
| locatedIn |
New York
ⓘ
surface form:
New York State
Westchester County, New York ⓘ Yonkers, New York ⓘ |
| managedBy |
New York City Department of Environmental Protection
ⓘ
surface form:
Bureau of Water Supply
|
| near |
Bronx–Westchester border
ⓘ
Van Cortlandt Park, Bronx ⓘ
surface form:
Van Cortlandt Park
|
| opened | 1915 ⓘ |
| operatedBy | New York City Department of Environmental Protection ⓘ |
| ownedBy | New York City ⓘ |
| partOf |
Catskill system reservoirs
ⓘ
surface form:
Catskill–Delaware water supply system
New York City water supply system ⓘ |
| receivesWaterFrom |
Catskill Mountains
ⓘ
surface form:
Catskill system
Delaware system ⓘ |
| regionServed |
New York metropolitan area
ⓘ
surface form:
New York City metropolitan area
|
| regulates | water pressure into New York City distribution system ⓘ |
| securityStatus | restricted access facility ⓘ |
| suppliesWaterTo |
borough of Manhattan
ⓘ
surface form:
Borough of Manhattan
The Bronx ⓘ
surface form:
Borough of the Bronx
New York City ⓘ parts of Brooklyn ⓘ parts of Queens ⓘ |
| surfaceArea | approximately 90 acres ⓘ |
| use | potable water storage ⓘ |
| waterSource |
Catskill Aqueduct
ⓘ
Delaware Aqueduct ⓘ |
| waterType | treated surface water ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Hillview Reservoir Description of subject: Hillview Reservoir is a key New York City water storage facility that serves as the final holding basin for treated water before it enters the city’s distribution system.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.