Roundout Reservoir
E654648
Roundout Reservoir is a man-made lake in New York’s Catskill region that serves as a major component of the New York City water supply system.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Roundout Reservoir canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6918224 — 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: Roundout Reservoir Context triple: [Hudson River watershed, includesWaterBody, Roundout Reservoir]
-
A.
Pardee Reservoir
Pardee Reservoir is a man-made lake in the Sierra Nevada foothills of California that serves as a major water storage and supply source for the East Bay region.
-
B.
Patterson Reservoir
Patterson Reservoir is a water storage facility in California that forms part of the State Water Project’s South Bay Aqueduct system.
-
C.
Fengman Reservoir
Fengman Reservoir is a major artificial lake and hydroelectric reservoir on the upper Songhua River in Jilin Province, China, known for its role in power generation, flood control, and regional water supply.
-
D.
John H. Kerr Reservoir
John H. Kerr Reservoir is a large man-made lake on the Roanoke River along the North Carolina–Virginia border, widely used for hydroelectric power, flood control, and recreation.
-
E.
Stillwater Point Reservoir
Stillwater Point Reservoir is a man-made water body in Nevada that serves as an important wetland habitat for migratory birds and other wildlife within the Stillwater National Wildlife Refuge.
- 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: Roundout Reservoir Target entity description: Roundout Reservoir is a man-made lake in New York’s Catskill region that serves as a major component of the New York City water supply system.
-
A.
Pardee Reservoir
Pardee Reservoir is a man-made lake in the Sierra Nevada foothills of California that serves as a major water storage and supply source for the East Bay region.
-
B.
Patterson Reservoir
Patterson Reservoir is a water storage facility in California that forms part of the State Water Project’s South Bay Aqueduct system.
-
C.
Fengman Reservoir
Fengman Reservoir is a major artificial lake and hydroelectric reservoir on the upper Songhua River in Jilin Province, China, known for its role in power generation, flood control, and regional water supply.
-
D.
John H. Kerr Reservoir
John H. Kerr Reservoir is a large man-made lake on the Roanoke River along the North Carolina–Virginia border, widely used for hydroelectric power, flood control, and recreation.
-
E.
Stillwater Point Reservoir
Stillwater Point Reservoir is a man-made water body in Nevada that serves as an important wetland habitat for migratory birds and other wildlife within the Stillwater National Wildlife Refuge.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf | reservoir ⓘ |
| accessPolicy | public access restricted to protect water quality ⓘ |
| basinCountry |
United States
ⓘ
linked to:
United States of America
|
| connectsTo |
Catskill Aqueduct
ⓘ
Delaware Aqueduct ⓘ |
| constructionType | impoundment of Rondout Creek by dam ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| drainageBasin |
Hudson River basin
ⓘ
linked to:
Hudson River watershed
|
| ecosystem | freshwater reservoir ecosystem ⓘ |
| environmentalZone | protected watershed area ⓘ |
| fishingPolicy | fishing allowed by permit in designated areas ⓘ |
| hasFeature |
deep, narrow valley basin
ⓘ
steep forested watershed slopes ⓘ |
| hasPart |
Rondout Reservoir Dam
ⓘ
linked to:
Rondout Dam
|
| hasWatershed | Rondout Creek watershed ⓘ |
| inflow |
Rondout Creek
ⓘ
tributary streams in Catskill region ⓘ |
| isMajorComponentOf |
New York City Catskill–Delaware water supply system
ⓘ
linked to:
Catskill–Delaware water supply system
|
| locatedIn |
Catskill Mountains
ⓘ
New York State ⓘ Ulster County, New York ⓘ
linked to:
Ulster County
|
| manages | drinking water storage for New York City ⓘ |
| near |
town of Rochester, New York
ⓘ
town of Wawarsing, New York ⓘ
linked to:
Wawarsing, New York
|
| operator | New York City Department of Environmental Protection ⓘ |
| outflow |
Delaware Aqueduct
ⓘ
Rondout Creek (downstream of dam) ⓘ
linked to:
Rondout Creek
|
| ownedBy |
City of New York
ⓘ
linked to:
New York City
|
| partOf |
Catskill–Delaware Watershed
ⓘ
linked to:
Catskill-Delaware Watershed
New York City water supply system ⓘ |
| purpose |
flood control
ⓘ
municipal water supply ⓘ recreation (limited and regulated) ⓘ |
| region | Catskill Park vicinity ⓘ |
| regulates | flow of Rondout Creek ⓘ |
| securityStatus | critical infrastructure for New York City ⓘ |
| suppliesWaterTo |
Hudson Valley communities (via NYC system)
ⓘ
New York City ⓘ |
| transportMode | water conveyed via aqueduct tunnels ⓘ |
| usedFor |
gravity-fed water conveyance
ⓘ
raw water storage ⓘ |
| watercourse | Rondout Creek ⓘ |
| waterQualityUse | unfiltered drinking water source ⓘ |
| waterUse | potable water supply only (no swimming allowed) ⓘ |
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: Roundout Reservoir Description of subject: Roundout Reservoir is a man-made lake in New York’s Catskill region that serves as a major component of the New York City water supply system.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.