Tehama-Colusa Canal Authority
E305258
The Tehama-Colusa Canal Authority is a regional water management agency in California responsible for operating and maintaining the Tehama-Colusa Canal to deliver irrigation water to participating districts.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Tehama-Colusa Canal Authority canonical | 1 |
| Tehama-Colusa Canal water users association | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2853740 — 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: Tehama-Colusa Canal Authority Context triple: [Tehama-Colusa Canal, managedBy, Tehama-Colusa Canal Authority]
-
A.
San Joaquin River Conservancy
The San Joaquin River Conservancy is a state agency dedicated to protecting, restoring, and providing public access to natural and recreational resources along the San Joaquin River in California.
-
B.
California Department of Water Resources
The California Department of Water Resources is a state agency responsible for managing California’s water resources, including planning, conservation, flood control, and operation of major water infrastructure.
-
C.
Tehama-Colusa Canal
The Tehama-Colusa Canal is a major irrigation and water conveyance canal in California’s Sacramento Valley that delivers Central Valley Project water to agricultural lands and communities.
-
D.
California State Water Resources Control Board
The California State Water Resources Control Board is a state agency responsible for safeguarding water quality and managing the allocation and use of California’s water resources.
-
E.
Central Valley Project
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.
- 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: Tehama-Colusa Canal Authority Target entity description: The Tehama-Colusa Canal Authority is a regional water management agency in California responsible for operating and maintaining the Tehama-Colusa Canal to deliver irrigation water to participating districts.
-
A.
San Joaquin River Conservancy
The San Joaquin River Conservancy is a state agency dedicated to protecting, restoring, and providing public access to natural and recreational resources along the San Joaquin River in California.
-
B.
California Department of Water Resources
The California Department of Water Resources is a state agency responsible for managing California’s water resources, including planning, conservation, flood control, and operation of major water infrastructure.
-
C.
Tehama-Colusa Canal
The Tehama-Colusa Canal is a major irrigation and water conveyance canal in California’s Sacramento Valley that delivers Central Valley Project water to agricultural lands and communities.
-
D.
California State Water Resources Control Board
The California State Water Resources Control Board is a state agency responsible for safeguarding water quality and managing the allocation and use of California’s water resources.
-
E.
Central Valley Project
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.
- F. None of above. chosen
Statements (40)
| Predicate | Object |
|---|---|
| instanceOf |
joint powers authority
ⓘ
public agency ⓘ water management agency ⓘ |
| activity |
drought management planning
ⓘ
infrastructure maintenance ⓘ water conservation programs ⓘ water supply planning ⓘ |
| collaboratesWith |
Bureau of Reclamation
ⓘ
surface form:
United States Bureau of Reclamation
|
| country |
United States of America
ⓘ
surface form:
United States
|
| focusArea |
agricultural water supply reliability
ⓘ
conveyance system efficiency ⓘ environmental compliance for canal operations ⓘ |
| governanceStructure | board of directors representing member districts ⓘ |
| governs |
Tehama-Colusa Canal Authority
self-linksurface differs
ⓘ
surface form:
Tehama-Colusa Canal water users association
|
| industry |
irrigation water delivery
ⓘ
water resources management ⓘ |
| infrastructure |
Tehama-Colusa Canal distribution facilities
ⓘ
Tehama-Colusa Canal ⓘ
surface form:
Tehama-Colusa Canal pumping plants
|
| jurisdiction | participating Tehama-Colusa Canal districts ⓘ |
| legalBasis | joint powers agreement among member districts ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
Sacramento Valley ⓘ |
| maintains | Tehama-Colusa Canal ⓘ |
| manages | water deliveries to member districts ⓘ |
| memberType |
irrigation districts
ⓘ
water districts ⓘ |
| operates | Tehama-Colusa Canal ⓘ |
| parentProject | Central Valley Project ⓘ |
| purpose |
irrigation water delivery
ⓘ
operation and maintenance of Tehama-Colusa Canal ⓘ regional water management coordination ⓘ |
| regionServed | northern Sacramento Valley ⓘ |
| regulates | operation of Tehama-Colusa Canal pumping and conveyance ⓘ |
| serviceArea |
Central Valley Project
ⓘ
surface form:
Central Valley Project service area
Sacramento River Basin ⓘ
surface form:
Sacramento River watershed
|
| subjectOf |
Central Valley Project operations discussions
ⓘ
regional water management plans ⓘ |
| typeOfCanalOperated | federally constructed irrigation canal ⓘ |
| usesWaterFrom | Red Bluff area diversion facilities ⓘ |
| waterSource | Sacramento River ⓘ |
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: Tehama-Colusa Canal Authority Description of subject: The Tehama-Colusa Canal Authority is a regional water management agency in California responsible for operating and maintaining the Tehama-Colusa Canal to deliver irrigation water to participating districts.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Tehama-Colusa Canal water users association