McMillan Reservoir
E749947
McMillan Reservoir is a historic water storage facility in Washington, D.C., that has long served as a key component of the city’s municipal water system.
All labels observed (1)
| Label | Occurrences |
|---|---|
| McMillan Reservoir canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8643816 — 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: McMillan Reservoir Context triple: [Stronghold neighborhood, near, McMillan Reservoir]
-
A.
R. L. Harris Reservoir
R. L. Harris Reservoir is a man-made lake in east-central Alabama popular for fishing, boating, and other recreational activities.
-
B.
Wheeler Reservoir
Wheeler Reservoir is a large man-made lake on the Tennessee River in northern Alabama, created by Wheeler Dam and used for hydroelectric power, navigation, recreation, and wildlife habitat.
-
C.
Griggs Reservoir
Griggs Reservoir is a man-made lake and recreational area in Columbus, Ohio, created by damming the Scioto River for water supply, flood control, and outdoor activities.
-
D.
Canistear Reservoir
Canistear Reservoir is a man-made lake in northern New Jersey that serves as a water supply and recreational area within the township of West Milford.
-
E.
Lusk Reservoir
Lusk Reservoir is a scenic man-made lake on the grounds of the United States Military Academy at West Point, often noted for its picturesque setting near the campus athletic facilities.
- 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: McMillan Reservoir Target entity description: McMillan Reservoir is a historic water storage facility in Washington, D.C., that has long served as a key component of the city’s municipal water system.
-
A.
R. L. Harris Reservoir
R. L. Harris Reservoir is a man-made lake in east-central Alabama popular for fishing, boating, and other recreational activities.
-
B.
Wheeler Reservoir
Wheeler Reservoir is a large man-made lake on the Tennessee River in northern Alabama, created by Wheeler Dam and used for hydroelectric power, navigation, recreation, and wildlife habitat.
-
C.
Griggs Reservoir
Griggs Reservoir is a man-made lake and recreational area in Columbus, Ohio, created by damming the Scioto River for water supply, flood control, and outdoor activities.
-
D.
Canistear Reservoir
Canistear Reservoir is a man-made lake in northern New Jersey that serves as a water supply and recreational area within the township of West Milford.
-
E.
Lusk Reservoir
Lusk Reservoir is a scenic man-made lake on the grounds of the United States Military Academy at West Point, often noted for its picturesque setting near the campus athletic facilities.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
historic site
ⓘ
reservoir ⓘ water storage facility ⓘ |
| adjacentTo | McMillan Sand Filtration Site NERFINISHED ⓘ |
| boundedBy |
Channing Street NW
NERFINISHED
ⓘ
First Street NW NERFINISHED ⓘ Michigan Avenue NW NERFINISHED ⓘ North Capitol Street NERFINISHED ⓘ |
| connectedTo | Washington Aqueduct NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| elevation | about 200 feet above sea level ⓘ |
| hasBasinCountry | United States NERFINISHED ⓘ |
| hasCoordinateLatitude | 38.924 ⓘ |
| hasCoordinateLongitude | -77.011 ⓘ |
| hasFunction |
municipal water supply
ⓘ
potable water storage ⓘ |
| hasPart | McMillan Sand Filtration Site NERFINISHED ⓘ |
| heritageDesignation |
DC Inventory of Historic Sites
NERFINISHED
ⓘ
National Register of Historic Places ⓘ |
| inception | 1902 ⓘ |
| isPartOf | Washington, D.C., water distribution network ⓘ |
| listedOnNRHP | 1986 ⓘ |
| locatedInAdministrativeTerritory | District of Columbia NERFINISHED ⓘ |
| locatedInNeighborhood |
Bloomingdale
NERFINISHED
ⓘ
Stronghold NERFINISHED ⓘ |
| locatedNear |
Armed Forces Retirement Home
NERFINISHED
ⓘ
Catholic University of America NERFINISHED ⓘ Howard University NERFINISHED ⓘ Washington Hospital Center NERFINISHED ⓘ |
| locatedOn | North Capitol Street NERFINISHED ⓘ |
| location | Washington, D.C. ⓘ |
| maintainedBy | District of Columbia Water and Sewer Authority NERFINISHED ⓘ |
| namedAfter | James McMillan NERFINISHED ⓘ |
| nearbyWaterBody |
Potomac River
NERFINISHED
ⓘ
Rock Creek NERFINISHED ⓘ |
| NRHPType | historic district contributing structure ⓘ |
| operator | District of Columbia Water and Sewer Authority NERFINISHED ⓘ |
| ownedBy |
United States government
ⓘ
surface form:
United States federal government
|
| partOf |
District of Columbia municipal water system
NERFINISHED
ⓘ
Washington Aqueduct system NERFINISHED ⓘ |
| publicAccess | restricted ⓘ |
| securityStatus | critical infrastructure ⓘ |
| suppliesWaterTo |
Arlington County, Virginia
NERFINISHED
ⓘ
City of Falls Church, Virginia NERFINISHED ⓘ Washington, D.C. NERFINISHED ⓘ |
| use |
drinking water storage
ⓘ
emergency water reserve ⓘ |
| waterSource | Potomac River NERFINISHED ⓘ |
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: McMillan Reservoir Description of subject: McMillan Reservoir is a historic water storage facility in Washington, D.C., that has long served as a key component of the city’s municipal water system.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.