Lahontan Regional Water Quality Control Board
E638149
The Lahontan Regional Water Quality Control Board is a California state regional agency responsible for protecting and regulating water quality in the Lahontan region, including parts of the Sierra Nevada and desert areas.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Lahontan Regional Water Quality Control Board canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T7053833 — 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: Lahontan Regional Water Quality Control Board Context triple: [California State Water Resources Control Board, subdivision, Lahontan Regional Water Quality Control Board]
-
A.
North Coast Regional Water Quality Control Board
The North Coast Regional Water Quality Control Board is a California state agency responsible for protecting and regulating water quality in the North Coast region, including rivers, lakes, and coastal waters such as those in the Eel River Basin.
-
B.
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.
-
C.
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.
-
D.
Friant Water Authority
Friant Water Authority is a California-based public agency that manages and delivers irrigation and municipal water supplies from the federal Central Valley Project to agricultural and urban users along the Friant Division.
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E.
Mojave Water Agency
The Mojave Water Agency is a regional water management and planning agency in Southern California responsible for securing, conserving, and overseeing water resources for communities in the Mojave Desert region.
- 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: Lahontan Regional Water Quality Control Board Target entity description: The Lahontan Regional Water Quality Control Board is a California state regional agency responsible for protecting and regulating water quality in the Lahontan region, including parts of the Sierra Nevada and desert areas.
-
A.
North Coast Regional Water Quality Control Board
The North Coast Regional Water Quality Control Board is a California state agency responsible for protecting and regulating water quality in the North Coast region, including rivers, lakes, and coastal waters such as those in the Eel River Basin.
-
B.
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.
-
C.
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.
-
D.
Friant Water Authority
Friant Water Authority is a California-based public agency that manages and delivers irrigation and municipal water supplies from the federal Central Valley Project to agricultural and urban users along the Friant Division.
-
E.
Mojave Water Agency
The Mojave Water Agency is a regional water management and planning agency in Southern California responsible for securing, conserving, and overseeing water resources for communities in the Mojave Desert region.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
California regional water quality control board
ⓘ
state regulatory agency ⓘ |
| boardMembersAppointedBy | Governor of California ⓘ |
| boardMembersConfirmedBy | California State Senate ⓘ |
| collaboratesWith |
federal agencies
ⓘ
local governments ⓘ nonprofit organizations ⓘ tribal governments ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| focusArea |
protection of groundwater basins in the Lahontan region
ⓘ
protection of lakes, rivers, and streams in the Lahontan region ⓘ |
| governingBody | seven-member regional water board ⓘ |
| hasStaff | professional staff including engineers and scientists ⓘ |
| implements | California Water Code provisions in its region ⓘ |
| jurisdiction |
Lahontan hydrologic region
ⓘ
eastern California desert areas ⓘ eastern slope of the Sierra Nevada ⓘ parts of the Great Basin in California ⓘ portions of the Sierra Nevada ⓘ |
| legalBasis | Porter-Cologne Water Quality Control Act ⓘ |
| mission | to protect and enhance water quality in the Lahontan region ⓘ |
| oneOf | nine California Regional Water Quality Control Boards ⓘ |
| oversees |
Total Maximum Daily Load programs in its region
ⓘ
implementation of the federal Clean Water Act in its region ⓘ |
| parentAgency | State Water Resources Control Board ⓘ |
| partOf | California Environmental Protection Agency ⓘ |
| regionNumber | 6 ⓘ |
| regulates |
industrial wastewater discharges
ⓘ
land development activities affecting water quality ⓘ municipal wastewater discharges ⓘ nonpoint source pollution ⓘ stormwater discharges ⓘ |
| responsibility |
developing and implementing basin plans
ⓘ
enforcing state and federal water quality laws ⓘ issuing National Pollutant Discharge Elimination System permits ⓘ issuing waste discharge requirements ⓘ overseeing cleanup of contaminated sites affecting water quality ⓘ regulating groundwater quality ⓘ regulating surface water quality ⓘ |
| shortName | Lahontan Water Board ⓘ |
| state |
California
ⓘ
linked to:
California, United States
|
| typeOfRegion | inland, largely non-coastal region ⓘ |
| website | https://www.waterboards.ca.gov/lahontan/ ⓘ |
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: Lahontan Regional Water Quality Control Board Description of subject: The Lahontan Regional Water Quality Control Board is a California state regional agency responsible for protecting and regulating water quality in the Lahontan region, including parts of the Sierra Nevada and desert areas.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
California State Water Resources Control Board
→
subdivision
→
Lahontan Regional Water Quality Control Board
ⓘ
California portion of Truckee River Basin
→
hasRegulatingAgency
→
Lahontan Regional Water Quality Control Board
ⓘ
California State Water Resources Control Board
→
hasComponent
→
Lahontan Regional Water Quality Control Board
ⓘ
subject linked to:
SWRCB
California Regional Water Quality Control Board
→
hasPart
→
Lahontan Regional Water Quality Control Board
ⓘ