New York City Board of Water Supply
E675311
The New York City Board of Water Supply was a municipal agency responsible for planning and constructing the large-scale waterworks that expanded and secured New York City’s drinking water system in the early 20th century.
All labels observed (1)
| Label | Occurrences |
|---|---|
| New York City Board of Water Supply canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7590802 — 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: New York City Board of Water Supply Context triple: [Nora Stanton Blatch, employer, New York City Board of Water Supply]
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A.
New York City Department of Environmental Protection
The New York City Department of Environmental Protection is the municipal agency responsible for managing the city’s water supply, wastewater treatment, and environmental regulation to protect public health and natural resources.
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B.
New York City water supply system
The New York City water supply system is a vast network of reservoirs, aqueducts, tunnels, and distribution infrastructure that delivers potable water from upstate watersheds to millions of residents in New York City.
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C.
Delaware River and Bay Authority
The Delaware River and Bay Authority is a bi-state governmental agency that manages and operates transportation infrastructure and services, including bridges, ferries, and airports, between Delaware and New Jersey.
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D.
Albany Department of Water and Water Supply
The Albany Department of Water and Water Supply is the municipal agency responsible for managing the drinking water, distribution system, and related infrastructure for the City of Albany, New York.
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E.
New York State Canal Corporation
The New York State Canal Corporation is the public agency responsible for operating, maintaining, and promoting New York’s historic canal system, including the Erie, Champlain, Oswego, and Cayuga-Seneca Canals.
- 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: New York City Board of Water Supply Target entity description: The New York City Board of Water Supply was a municipal agency responsible for planning and constructing the large-scale waterworks that expanded and secured New York City’s drinking water system in the early 20th century.
-
A.
New York City Department of Environmental Protection
The New York City Department of Environmental Protection is the municipal agency responsible for managing the city’s water supply, wastewater treatment, and environmental regulation to protect public health and natural resources.
-
B.
New York City water supply system
The New York City water supply system is a vast network of reservoirs, aqueducts, tunnels, and distribution infrastructure that delivers potable water from upstate watersheds to millions of residents in New York City.
-
C.
Delaware River and Bay Authority
The Delaware River and Bay Authority is a bi-state governmental agency that manages and operates transportation infrastructure and services, including bridges, ferries, and airports, between Delaware and New Jersey.
-
D.
Albany Department of Water and Water Supply
The Albany Department of Water and Water Supply is the municipal agency responsible for managing the drinking water, distribution system, and related infrastructure for the City of Albany, New York.
-
E.
New York State Canal Corporation
The New York State Canal Corporation is the public agency responsible for operating, maintaining, and promoting New York’s historic canal system, including the Erie, Champlain, Oswego, and Cayuga-Seneca Canals.
- F. None of above. chosen
Statements (39)
| Predicate | Object |
|---|---|
| instanceOf |
defunct organization
ⓘ
government organization ⓘ municipal agency ⓘ |
| appliesToJurisdiction | New York City NERFINISHED ⓘ |
| appliesToPart | New York City drinking water system ⓘ |
| country | United States of America ⓘ |
| dissolvedOrAbolished | 20th century ⓘ |
| fieldOfWork |
municipal water management
ⓘ
water infrastructure construction ⓘ waterworks planning ⓘ |
| hasDomain |
public utilities
ⓘ
public works ⓘ |
| hasDuty |
constructing New York City waterworks
ⓘ
expanding New York City drinking water system ⓘ planning New York City waterworks ⓘ securing New York City drinking water supply ⓘ |
| hasEffect |
development of regional water infrastructure for New York City
ⓘ
improved reliability of New York City drinking water supply ⓘ increased capacity of New York City drinking water system ⓘ |
| hasObjective |
develop large-scale water infrastructure projects
ⓘ
ensure long-term water security for New York City ⓘ provide adequate drinking water for New York City ⓘ |
| inception | early 20th century ⓘ |
| industry | water supply ⓘ |
| locatedInTheAdministrativeTerritorialEntity |
New York City
NERFINISHED
ⓘ
New York State NERFINISHED ⓘ |
| operatedInTheAdministrativeTerritorialEntity |
New York City
NERFINISHED
ⓘ
New York State NERFINISHED ⓘ |
| ownedBy |
New York City
ⓘ
surface form:
City of New York
|
| partOf | Government of New York City NERFINISHED ⓘ |
| replacedBy | New York City Department of Environmental Protection NERFINISHED ⓘ |
| significantEvent |
construction of large-scale waterworks for New York City
ⓘ
expansion of New York City water supply system ⓘ planning large-scale waterworks for New York City ⓘ securing long-distance water sources for New York City ⓘ |
| timePeriod | early 20th century ⓘ |
| use |
aqueduct systems
ⓘ
reservoir systems ⓘ surface water sources ⓘ |
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: New York City Board of Water Supply Description of subject: The New York City Board of Water Supply was a municipal agency responsible for planning and constructing the large-scale waterworks that expanded and secured New York City’s drinking water system in the early 20th century.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
employing pioneering civil engineer Nora Stanton Blatch
→
employer
→
New York City Board of Water Supply
ⓘ
subject surface form:
Nora Stanton Blatch