Central Valley Project
E9027
The Central Valley Project is a large-scale federal water management system in California that stores and delivers water for agriculture, cities, and environmental uses across the Central Valley.
All labels observed (23)
How this entity was disambiguated
This entity first appeared as the object of triple T88566 — 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: Central Valley Project Context triple: [Central Valley, waterInfrastructure, Central Valley Project]
-
A.
Hoover Dam
Hoover Dam is a massive concrete arch-gravity dam on the Colorado River, renowned as a landmark feat of 20th-century American engineering and a major source of hydroelectric power and water management in the Southwest.
-
B.
Central Valley
The Central Valley is a vast, fertile agricultural region in California that serves as one of the most productive farming areas in the world.
-
C.
Grand Coulee Dam
Grand Coulee Dam is a massive concrete gravity dam on the Columbia River in Washington State, renowned as one of the largest power-producing facilities in the United States and a landmark of New Deal–era infrastructure.
-
D.
Tennessee Valley Authority
The Tennessee Valley Authority is a federally owned U.S. corporation created during the New Deal to provide regional economic development, flood control, and electricity generation in the Tennessee Valley.
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E.
San Francisco Bay
San Francisco Bay is a large, shallow estuarine inlet on the coast of Northern California, known for its iconic bridges, maritime activity, and role as the geographic center of the San Francisco Bay Area.
- 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: Central Valley Project Target entity description: The Central Valley Project is a large-scale federal water management system in California that stores and delivers water for agriculture, cities, and environmental uses across the Central Valley.
-
A.
Hoover Dam
Hoover Dam is a massive concrete arch-gravity dam on the Colorado River, renowned as a landmark feat of 20th-century American engineering and a major source of hydroelectric power and water management in the Southwest.
-
B.
Central Valley
The Central Valley is a vast, fertile agricultural region in California that serves as one of the most productive farming areas in the world.
-
C.
Grand Coulee Dam
Grand Coulee Dam is a massive concrete gravity dam on the Columbia River in Washington State, renowned as one of the largest power-producing facilities in the United States and a landmark of New Deal–era infrastructure.
-
D.
Tennessee Valley Authority
The Tennessee Valley Authority is a federally owned U.S. corporation created during the New Deal to provide regional economic development, flood control, and electricity generation in the Tennessee Valley.
-
E.
San Francisco Bay
San Francisco Bay is a large, shallow estuarine inlet on the coast of Northern California, known for its iconic bridges, maritime activity, and role as the geographic center of the San Francisco Bay Area.
- F. None of above. chosen
Statements (52)
| Predicate | Object |
|---|---|
| instanceOf |
federal water project
ⓘ
water management project ⓘ |
| authorizationAct | Rivers and Harbors Act of 1937 ⓘ |
| authorizedBy | United States Congress ⓘ |
| basin |
Sacramento River Basin
ⓘ
San Joaquin River Basin ⓘ
linked to:
San Joaquin River
Trinity River Basin ⓘ |
| constructionBegan | 1930s ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| environmentalImpact |
affects fish populations in Sacramento-San Joaquin Delta
ⓘ
affects wetlands and wildlife refuges in Central Valley ⓘ |
| hasComponent |
canals
ⓘ
dams ⓘ powerplants ⓘ pumping plants ⓘ reservoirs ⓘ |
| includes |
Contra Costa Canal
ⓘ
Delta-Mendota Canal ⓘ Folsom Dam ⓘ Friant Dam ⓘ Friant-Kern Canal ⓘ Jones Pumping Plant ⓘ Keswick Dam ⓘ New Melones Dam ⓘ San Luis Reservoir ⓘ San Luis Unit ⓘ Shasta Dam ⓘ Tehama-Colusa Canal ⓘ Tracy Pumping Plant ⓘ Trinity Dam ⓘ |
| locatedIn |
California
ⓘ
linked to:
California, United States
Central Valley ⓘ |
| managedBy |
United States Bureau of Reclamation
ⓘ
linked to:
Bureau of Reclamation
|
| operator |
United States Bureau of Reclamation
ⓘ
linked to:
Bureau of Reclamation
|
| primaryBeneficiaries |
Central Valley agriculture
ⓘ
Central Valley cities ⓘ |
| purpose |
fish and wildlife protection
ⓘ
flood control ⓘ hydroelectric power generation ⓘ irrigation water supply ⓘ municipal and industrial water supply ⓘ navigation support ⓘ water quality improvement ⓘ |
| regulates | Sacramento-San Joaquin Delta flows ⓘ |
| relatedTo | State Water Project ⓘ |
| suppliesWaterFor |
environmental flows
ⓘ
irrigated agriculture ⓘ urban uses ⓘ |
| waterDeliveredTo |
Central Coast region of California
ⓘ
linked to:
Central Coast of California
Sacramento Valley ⓘ San Francisco Bay Area ⓘ San Joaquin Valley ⓘ |
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: Central Valley Project Description of subject: The Central Valley Project is a large-scale federal water management system in California that stores and delivers water for agriculture, cities, and environmental uses across the Central Valley.
Referenced by (87)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Central Valley Project
linked to: Central Valley Project
linked to: Central Valley Project
linked to: Central Valley Project
linked to: Central Valley Project
linked to: Central Valley Project
Rivers and Harbors Act of 1937
→
topic
→
California Central Valley Project (context of authorization and planning)
ⓘ
linked to: Central Valley Project
linked to: Central Valley Project
linked to: Central Valley Project
linked to: Central Valley Project
linked to: Central Valley Project
linked to: Central Valley Project
linked to: Central Valley Project
Lake Oroville
→
waterSupplyFor
→
Central Valley Project service areas (via exchanges and interties)
ⓘ
linked to: Central Valley Project
linked to: Central Valley Project
linked to: Central Valley Project
Don Pedro Reservoir
→
partOf
→
Central Valley Project service area (indirectly via local districts)
ⓘ
linked to: Central Valley Project
linked to: Central Valley Project
subject linked to:
Sacramento River and San Joaquin River