New River (Imperial Valley) via Salton Sea
E543558
The New River (Imperial Valley) via Salton Sea is a heavily polluted transboundary river flowing from Mexico into California’s Imperial Valley, ultimately discharging into the Salton Sea and significantly impacting regional water quality and ecosystems.
All labels observed (1)
| Label | Occurrences |
|---|---|
| New River (Imperial Valley) via Salton Sea canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5749433 — 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: New River (Imperial Valley) via Salton Sea Context triple: [Alamo River, connectedTo, New River (Imperial Valley) via Salton Sea]
-
A.
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.
-
B.
New River (California)
New River is a tributary stream in Northern California that flows through the Klamath Mountains and contributes to the Trinity River system.
-
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.
Santa Ana River
The Santa Ana River is a major waterway in Southern California that flows from the San Bernardino Mountains through inland valleys to the Pacific Ocean, shaping the region’s geography and development.
-
E.
San Diego River
The San Diego River is a major waterway in Southern California that flows from the Cuyamaca Mountains through Mission Valley to the Pacific Ocean, playing a key role in the region’s history and ecology.
- 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: New River (Imperial Valley) via Salton Sea Target entity description: The New River (Imperial Valley) via Salton Sea is a heavily polluted transboundary river flowing from Mexico into California’s Imperial Valley, ultimately discharging into the Salton Sea and significantly impacting regional water quality and ecosystems.
-
A.
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.
-
B.
New River (California)
New River is a tributary stream in Northern California that flows through the Klamath Mountains and contributes to the Trinity River system.
-
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.
Santa Ana River
The Santa Ana River is a major waterway in Southern California that flows from the San Bernardino Mountains through inland valleys to the Pacific Ocean, shaping the region’s geography and development.
-
E.
San Diego River
The San Diego River is a major waterway in Southern California that flows from the Cuyamaca Mountains through Mission Valley to the Pacific Ocean, playing a key role in the region’s history and ecology.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| associatedWith |
Imperial Irrigation District drainage network
ⓘ
Salton Sea restoration efforts ⓘ |
| containsPollutant |
heavy metals
ⓘ
nutrients ⓘ pathogens ⓘ pesticides ⓘ volatile organic compounds ⓘ |
| countryOfMouth | United States NERFINISHED ⓘ |
| countryOfSource | Mexico NERFINISHED ⓘ |
| crossesBorderBetween | Mexico and United States NERFINISHED ⓘ |
| flowsFrom | Mexicali Valley NERFINISHED ⓘ |
| flowsInto | Salton Sea NERFINISHED ⓘ |
| flowsThrough | Imperial Valley NERFINISHED ⓘ |
| hasCharacteristic |
heavily polluted
ⓘ
impaired water body ⓘ transboundary watercourse ⓘ |
| hasEnvironmentalIssue |
eutrophication in Salton Sea
ⓘ
odor and air quality problems near Calexico and Brawley ⓘ |
| impacts |
Imperial Valley ecosystems
ⓘ
Salton Sea water quality ⓘ public health in border communities ⓘ |
| locatedIn |
Baja California
NERFINISHED
ⓘ
California, United States ⓘ
surface form:
California
Imperial County, California NERFINISHED ⓘ Mexicali, Baja California NERFINISHED ⓘ |
| majorPollutionSources |
agricultural runoff
ⓘ
industrial effluents ⓘ municipal wastewater discharges ⓘ urban stormwater ⓘ |
| monitoredBy |
California Office of Environmental Health Hazard Assessment
NERFINISHED
ⓘ
International Boundary and Water Commission NERFINISHED ⓘ |
| partOf | Colorado River Delta hydrologic region NERFINISHED ⓘ |
| passesNear |
Brawley, California
NERFINISHED
ⓘ
Calexico, California NERFINISHED ⓘ Westmorland, California NERFINISHED ⓘ |
| receivesDischargeFrom |
Imperial Valley agricultural drains
ⓘ
Mexicali wastewater treatment facilities ⓘ |
| regulatedBy |
California Regional Water Quality Control Board
NERFINISHED
ⓘ
United States Environmental Protection Agency NERFINISHED ⓘ |
| subjectOf | binational remediation and cleanup projects ⓘ |
| subjectTo |
Clean Water Act impairment listings
ⓘ
U.S.–Mexico border water quality agreements ⓘ |
| threatens |
aquatic habitat in Salton Sea
ⓘ
migratory bird habitat on the Pacific Flyway ⓘ |
| tributaryTo | Salton Sea NERFINISHED ⓘ |
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: New River (Imperial Valley) via Salton Sea Description of subject: The New River (Imperial Valley) via Salton Sea is a heavily polluted transboundary river flowing from Mexico into California’s Imperial Valley, ultimately discharging into the Salton Sea and significantly impacting regional water quality and ecosystems.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.