San Luis Rey hydrologic unit (California)
E825353
The San Luis Rey hydrologic unit in California is a designated watershed management area encompassing the San Luis Rey River basin and its associated surface and groundwater resources.
All labels observed (1)
| Label | Occurrences |
|---|---|
| San Luis Rey hydrologic unit (California) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9841927 — 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: San Luis Rey hydrologic unit (California) Context triple: [San Luis Rey River basin, partOf, San Luis Rey hydrologic unit (California)]
-
A.
Suisun Resource Conservation District
The Suisun Resource Conservation District is a local agency responsible for conserving, restoring, and managing natural resources and wildlife habitat in and around California’s Suisun Marsh.
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B.
Los Angeles River Ranger District
The Los Angeles River Ranger District is a management unit of the Angeles National Forest responsible for overseeing recreation, conservation, and resource protection in the forest lands surrounding the Los Angeles River watershed.
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C.
Salton Sea watershed
The Salton Sea watershed is the drainage basin in Southern California that collects water from surrounding rivers and agricultural runoff, ultimately feeding into the Salton Sea, a large inland saline lake.
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D.
Greater Los Angeles hydrologic system
The Greater Los Angeles hydrologic system is the interconnected network of rivers, arroyos, watersheds, and engineered water infrastructure that manages surface and groundwater flow across the Los Angeles metropolitan region.
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E.
Santa Clara River watershed
The Santa Clara River watershed is a major river basin in Southern California that drains diverse mountain and valley landscapes before emptying into the Pacific Ocean near Ventura.
- 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: San Luis Rey hydrologic unit (California) Target entity description: The San Luis Rey hydrologic unit in California is a designated watershed management area encompassing the San Luis Rey River basin and its associated surface and groundwater resources.
-
A.
Suisun Resource Conservation District
The Suisun Resource Conservation District is a local agency responsible for conserving, restoring, and managing natural resources and wildlife habitat in and around California’s Suisun Marsh.
-
B.
Los Angeles River Ranger District
The Los Angeles River Ranger District is a management unit of the Angeles National Forest responsible for overseeing recreation, conservation, and resource protection in the forest lands surrounding the Los Angeles River watershed.
-
C.
Salton Sea watershed
The Salton Sea watershed is the drainage basin in Southern California that collects water from surrounding rivers and agricultural runoff, ultimately feeding into the Salton Sea, a large inland saline lake.
-
D.
Greater Los Angeles hydrologic system
The Greater Los Angeles hydrologic system is the interconnected network of rivers, arroyos, watersheds, and engineered water infrastructure that manages surface and groundwater flow across the Los Angeles metropolitan region.
-
E.
Santa Clara River watershed
The Santa Clara River watershed is a major river basin in Southern California that drains diverse mountain and valley landscapes before emptying into the Pacific Ocean near Ventura.
- F. None of above. chosen
Statements (31)
| Predicate | Object |
|---|---|
| instanceOf |
hydrologic unit
ⓘ
river basin ⓘ watershed management area ⓘ |
| contains |
San Luis Rey River
ⓘ
San Luis Rey River basin ⓘ groundwater resources of the San Luis Rey River watershed ⓘ surface water resources of the San Luis Rey River watershed ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| drainageTo | Pacific Ocean ⓘ |
| environmentalConcern |
flood risk management
ⓘ
habitat conservation ⓘ water quality protection ⓘ |
| hasFeature |
alluvial groundwater basins
ⓘ
intermittent and perennial stream reaches ⓘ tributary streams of the San Luis Rey River ⓘ |
| includesLandUse |
agricultural areas
ⓘ
open space and natural habitat ⓘ urban areas ⓘ |
| locatedIn |
California
ⓘ
linked to:
California, United States
San Diego County, California ⓘ
linked to:
San Diego County
Southern California ⓘ |
| managingAuthority |
California Department of Water Resources
ⓘ
San Diego Regional Water Quality Control Board ⓘ |
| mouthNear |
Oceanside, California
ⓘ
linked to:
Oceanside, California, United States
|
| partOf |
California hydrologic unit system
ⓘ
San Diego hydrologic region ⓘ |
| usedFor |
flood management planning
ⓘ
groundwater management ⓘ water quality regulation ⓘ water resources planning ⓘ watershed management ⓘ |
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: San Luis Rey hydrologic unit (California) Description of subject: The San Luis Rey hydrologic unit in California is a designated watershed management area encompassing the San Luis Rey River basin and its associated surface and groundwater resources.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.