Arroyo Mocho
E947878
Arroyo Mocho is a stream in Alameda County, California, that flows through the Livermore Valley and contributes to the region’s watershed and groundwater recharge.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Arroyo Mocho canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T11800245 — 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: Arroyo Mocho Context triple: [Livermore Valley, drainageBasinOf, Arroyo Mocho]
-
A.
Calero Creek
Calero Creek is a stream in Santa Clara County, California, that drains the foothills near Calero Reservoir and flows northward through San Jose before joining the Guadalupe River.
-
B.
Big Arroyo
Big Arroyo is a remote glacially carved valley and drainage in Sequoia National Park’s high Sierra Nevada, known for its rugged alpine scenery and backcountry hiking routes.
-
C.
Sespe Creek
Sespe Creek is a major free-flowing stream in Southern California known for its scenic canyon, wildlife habitat, and role as a key tributary of the Santa Clara River.
-
D.
Moraga Creek
Moraga Creek is a small waterway in Contra Costa County, California, that flows through the town of Moraga and contributes to the local watershed and natural landscape.
-
E.
Tecate Creek
Tecate Creek is a small stream in the U.S.–Mexico border region that flows through Tecate, California, and into Baja California, Mexico.
- 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: Arroyo Mocho Target entity description: Arroyo Mocho is a stream in Alameda County, California, that flows through the Livermore Valley and contributes to the region’s watershed and groundwater recharge.
-
A.
Calero Creek
Calero Creek is a stream in Santa Clara County, California, that drains the foothills near Calero Reservoir and flows northward through San Jose before joining the Guadalupe River.
-
B.
Big Arroyo
Big Arroyo is a remote glacially carved valley and drainage in Sequoia National Park’s high Sierra Nevada, known for its rugged alpine scenery and backcountry hiking routes.
-
C.
Sespe Creek
Sespe Creek is a major free-flowing stream in Southern California known for its scenic canyon, wildlife habitat, and role as a key tributary of the Santa Clara River.
-
D.
Moraga Creek
Moraga Creek is a small waterway in Contra Costa County, California, that flows through the town of Moraga and contributes to the local watershed and natural landscape.
-
E.
Tecate Creek
Tecate Creek is a small stream in the U.S.–Mexico border region that flows through Tecate, California, and into Baja California, Mexico.
- F. None of above. chosen
Statements (39)
| Predicate | Object |
|---|---|
| instanceOf |
stream
ⓘ
watercourse ⓘ |
| associatedWith | Livermore Valley aquifer system ⓘ |
| basinCountry |
United States
ⓘ
linked to:
United States of America
|
| contributesTo |
groundwater recharge in Livermore Valley
ⓘ
regional watershed of Alameda County ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| drainageArea | part of the Livermore Valley drainage basin ⓘ |
| ecoregion | California chaparral and woodlands ⓘ |
| environmentalRole |
conveys runoff from surrounding hills into Livermore Valley
ⓘ
supports riparian habitat ⓘ |
| flowsThrough |
Livermore, California
ⓘ
linked to:
Livermore
Pleasanton, California ⓘ |
| hasCrossing |
Interstate 580
ⓘ
U.S. Route 50 (historic alignment in the area) ⓘ
linked to:
U.S. Route 50 in California
|
| hasFeature |
engineered channels in urban reaches
ⓘ
natural channel segments in less developed areas ⓘ |
| hasTributary |
Arroyo Las Positas
ⓘ
South San Ramon Creek ⓘ
linked to:
San Ramon Creek
|
| hydrologicalFunction |
groundwater recharge
ⓘ
surface water drainage ⓘ |
| languageOfName | Spanish ⓘ |
| locatedIn |
Alameda County, California
ⓘ
linked to:
Alameda County
California ⓘ
linked to:
California, United States
East Bay region of the San Francisco Bay Area ⓘ
linked to:
East Bay
Livermore Valley ⓘ |
| monitoredBy | local water agencies in Alameda County ⓘ |
| mouth | Arroyo de la Laguna ⓘ |
| mouthLocatedIn | near Pleasanton, California ⓘ |
| nameMeaning | "crooked stream" or "broken stream" in Spanish ⓘ |
| near |
Altamont Pass area
ⓘ
linked to:
Altamont Pass
Diablo Range ⓘ |
| partOf |
Alameda Creek watershed
ⓘ
linked to:
Alameda Creek
San Francisco Bay hydrologic region ⓘ |
| region | Livermore Valley groundwater basin ⓘ |
| subjectOf |
groundwater recharge studies in Livermore Valley
ⓘ
local watershed management plans ⓘ |
| usedFor |
local flood control
ⓘ
stormwater drainage ⓘ |
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: Arroyo Mocho Description of subject: Arroyo Mocho is a stream in Alameda County, California, that flows through the Livermore Valley and contributes to the region’s watershed and groundwater recharge.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.