Delta–Mendota Canal intake
E297766
The Delta–Mendota Canal intake is the headworks facility in California’s Sacramento–San Joaquin Delta where water is diverted into the Delta–Mendota Canal for delivery to agricultural and other users in the San Joaquin Valley.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Delta–Mendota Canal intake canonical | 1 |
| Mendota Pool on the San Joaquin River | 1 |
| Rock Slough intake | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2720193 — 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: Delta–Mendota Canal intake Context triple: [Tracy Pumping Plant, locatedOn, Delta–Mendota Canal intake]
-
A.
Contra Costa Canal
The Contra Costa Canal is a man-made waterway in California that delivers irrigation and municipal water from the Sacramento–San Joaquin Delta to communities in Contra Costa County.
-
B.
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.
-
C.
Friant-Kern Canal
The Friant-Kern Canal is a major irrigation and water conveyance canal in California’s San Joaquin Valley that delivers diverted San Joaquin River water to farms and communities across the southern Central Valley.
-
D.
New Melones Dam
New Melones Dam is a large multipurpose reservoir and hydroelectric facility on the Stanislaus River in California, providing water storage, flood control, and power generation.
-
E.
Perris Dam
Perris Dam is a large earthfill embankment dam in Riverside County, California, that forms Lake Perris as part of the state’s major water storage and distribution system.
- 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: Delta–Mendota Canal intake Target entity description: The Delta–Mendota Canal intake is the headworks facility in California’s Sacramento–San Joaquin Delta where water is diverted into the Delta–Mendota Canal for delivery to agricultural and other users in the San Joaquin Valley.
-
A.
Contra Costa Canal
The Contra Costa Canal is a man-made waterway in California that delivers irrigation and municipal water from the Sacramento–San Joaquin Delta to communities in Contra Costa County.
-
B.
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.
-
C.
Friant-Kern Canal
The Friant-Kern Canal is a major irrigation and water conveyance canal in California’s San Joaquin Valley that delivers diverted San Joaquin River water to farms and communities across the southern Central Valley.
-
D.
New Melones Dam
New Melones Dam is a large multipurpose reservoir and hydroelectric facility on the Stanislaus River in California, providing water storage, flood control, and power generation.
-
E.
Perris Dam
Perris Dam is a large earthfill embankment dam in Riverside County, California, that forms Lake Perris as part of the state’s major water storage and distribution system.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
headworks
ⓘ
water diversion facility ⓘ |
| connectsTo |
Delta-Mendota Canal
ⓘ
surface form:
Delta–Mendota Canal
|
| country |
United States of America
ⓘ
surface form:
United States
|
| hasComponent |
control gates
ⓘ
fish protection facilities ⓘ intake structure ⓘ |
| hasFunction | divert water from the Sacramento–San Joaquin Delta into the Delta–Mendota Canal ⓘ |
| isStartPointOf |
Delta-Mendota Canal
ⓘ
surface form:
Delta–Mendota Canal
|
| locatedIn |
California, United States
ⓘ
surface form:
California
Sacramento–San Joaquin River Delta ⓘ
surface form:
Sacramento–San Joaquin Delta
United States of America ⓘ
surface form:
United States
|
| locatedOnWaterbody |
Sacramento–San Joaquin River Delta
ⓘ
surface form:
Sacramento–San Joaquin Delta
|
| partOf |
Central Valley Project infrastructure
ⓘ
Delta-Mendota Canal ⓘ
surface form:
Delta–Mendota Canal
|
| purpose |
agricultural water delivery
ⓘ
irrigation water supply ⓘ municipal and industrial water supply ⓘ water diversion ⓘ |
| regionServed |
San Joaquin Valley agricultural users
ⓘ
San Joaquin Valley urban users ⓘ |
| serves | San Joaquin Valley ⓘ |
| state |
California, United States
ⓘ
surface form:
California
|
| usedFor | Central Valley Project water deliveries ⓘ |
| waterSource |
Sacramento–San Joaquin River Delta
ⓘ
surface form:
Sacramento–San Joaquin Delta
|
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: Delta–Mendota Canal intake Description of subject: The Delta–Mendota Canal intake is the headworks facility in California’s Sacramento–San Joaquin Delta where water is diverted into the Delta–Mendota Canal for delivery to agricultural and other users in the San Joaquin Valley.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Mendota Pool on the San Joaquin River
this entity surface form:
Rock Slough intake