Blue Plains
E699087
Blue Plains is a major advanced wastewater treatment facility in Washington, D.C., known as one of the largest and most sophisticated plants of its kind in the world.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Blue Plains canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T7808572 — 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: Blue Plains Context triple: [Blue Plains Advanced Wastewater Treatment Plant, shortName, Blue Plains]
-
A.
Occoquan Reservoir
Occoquan Reservoir is a man-made lake in Northern Virginia that serves as a major drinking water source and recreational area for the Washington, D.C. metropolitan region.
-
B.
Occoquan Dam
Occoquan Dam is a concrete gravity dam in northern Virginia that creates the Occoquan Reservoir, a major regional water supply and flood-control structure for the Washington, D.C. metropolitan area.
-
C.
The Reservoir
The Reservoir is a large man-made lake in Central Park, New York City, popular for its scenic running track and iconic skyline views.
-
D.
Boonton Reservoir
Boonton Reservoir is a man-made lake in northern New Jersey that serves as a major water supply source and recreational area for the surrounding region.
-
E.
Titicus Reservoir
Titicus Reservoir is a man-made lake in Westchester County, New York, that serves as one of the key water supply reservoirs for New York City.
- 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: Blue Plains Target entity description: Blue Plains is a major advanced wastewater treatment facility in Washington, D.C., known as one of the largest and most sophisticated plants of its kind in the world.
-
A.
Occoquan Reservoir
Occoquan Reservoir is a man-made lake in Northern Virginia that serves as a major drinking water source and recreational area for the Washington, D.C. metropolitan region.
-
B.
Occoquan Dam
Occoquan Dam is a concrete gravity dam in northern Virginia that creates the Occoquan Reservoir, a major regional water supply and flood-control structure for the Washington, D.C. metropolitan area.
-
C.
The Reservoir
The Reservoir is a large man-made lake in Central Park, New York City, popular for its scenic running track and iconic skyline views.
-
D.
Boonton Reservoir
Boonton Reservoir is a man-made lake in northern New Jersey that serves as a major water supply source and recreational area for the surrounding region.
-
E.
Titicus Reservoir
Titicus Reservoir is a man-made lake in Westchester County, New York, that serves as one of the key water supply reservoirs for New York City.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
advanced wastewater treatment facility
ⓘ
wastewater treatment plant ⓘ |
| aimsTo | protect Chesapeake Bay water quality ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| hasFunction |
manage stormwater flows
ⓘ
reduce nutrient pollution ⓘ treat municipal wastewater ⓘ |
| hasInfrastructure |
dewatering facilities
ⓘ
digesters ⓘ large aeration basins ⓘ nutrient removal facilities ⓘ sedimentation tanks ⓘ |
| hasOutput | treated effluent to the Potomac River ⓘ |
| hasProcess |
anaerobic digestion
ⓘ
biosolids production ⓘ disinfection ⓘ enhanced nutrient removal ⓘ sludge dewatering ⓘ |
| hasTreatmentType |
nitrogen removal
ⓘ
nutrient removal ⓘ phosphorus removal ⓘ primary treatment ⓘ secondary treatment ⓘ tertiary treatment ⓘ |
| locatedIn |
District of Columbia
ⓘ
Washington, D.C. ⓘ |
| locatedInTimeZone | Eastern Time Zone ⓘ |
| locatedOn | Potomac River ⓘ |
| operatedBy | DC Water ⓘ |
| ownedBy |
DC Water
ⓘ
District of Columbia Water and Sewer Authority ⓘ |
| produces |
Class A biosolids
ⓘ
biogas ⓘ reclaimed water ⓘ |
| recognizedAs |
one of the largest advanced wastewater treatment plants in the world
ⓘ
one of the most sophisticated wastewater treatment facilities in the world ⓘ |
| regulates | nutrient discharges to the Potomac River ⓘ |
| sector | water and wastewater utilities ⓘ |
| serves |
District of Columbia
ⓘ
Washington metropolitan area ⓘ parts of Maryland ⓘ parts of Virginia ⓘ |
| subjectTo |
Clean Water Act permits
ⓘ
U.S. Environmental Protection Agency regulations ⓘ |
| usesTechnology |
CambisTHP process
ⓘ
thermal hydrolysis ⓘ |
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: Blue Plains Description of subject: Blue Plains is a major advanced wastewater treatment facility in Washington, D.C., known as one of the largest and most sophisticated plants of its kind in the world.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Blue Plains rail bridge (if present) over Potomac River