North Coast Regional Water Quality Control Board
E600248
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.
All labels observed (3)
| Label | Occurrences |
|---|---|
| North Coast Regional Water Quality Control Board canonical | 4 |
| North Coast Water Board | 1 |
| Regional Water Quality Control Boards | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6560549 — 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: North Coast Regional Water Quality Control Board Context triple: [Eel River Basin, hasManagementAuthority, North Coast Regional Water Quality Control Board]
-
A.
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.
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B.
California Coastal Commission
The California Coastal Commission is a state agency responsible for protecting, conserving, and regulating land and water use along California’s coastline.
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C.
California State Coastal Conservancy
The California State Coastal Conservancy is a state agency that protects, restores, and enhances California’s coastal and marine resources while improving public access to the shoreline.
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D.
Contra Costa Water District
Contra Costa Water District is a public water agency in California that supplies drinking and irrigation water to communities in and around Contra Costa County.
-
E.
Alameda County Water District
Alameda County Water District is a public water agency in California responsible for providing drinking water and related services to communities in southern Alameda County, including Fremont, Newark, and Union City.
- 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: North Coast Regional Water Quality Control Board Target entity description: 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.
-
A.
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.
-
B.
California Coastal Commission
The California Coastal Commission is a state agency responsible for protecting, conserving, and regulating land and water use along California’s coastline.
-
C.
California State Coastal Conservancy
The California State Coastal Conservancy is a state agency that protects, restores, and enhances California’s coastal and marine resources while improving public access to the shoreline.
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D.
Contra Costa Water District
Contra Costa Water District is a public water agency in California that supplies drinking and irrigation water to communities in and around Contra Costa County.
-
E.
Alameda County Water District
Alameda County Water District is a public water agency in California responsible for providing drinking water and related services to communities in southern Alameda County, including Fremont, Newark, and Union City.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
California state agency
ⓘ
regional water quality control board ⓘ |
| alsoKnownAs | North Coast Water Board ⓘ |
| boardMembersAppointedBy | Governor of California ⓘ |
| collaboratesWith |
federal agencies on water quality issues
ⓘ
local governments in the North Coast region ⓘ tribal governments in the North Coast region ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| enforces | water quality standards and objectives ⓘ |
| establishedBy |
California Legislature
ⓘ
linked to:
California State Legislature
|
| focusesOn |
protection of aquatic life
ⓘ
protection of beneficial uses of water ⓘ protection of drinking water sources ⓘ protection of recreational uses of water ⓘ |
| hasBoard | seven-member regional board ⓘ |
| headquartersLocation |
Santa Rosa, California
ⓘ
linked to:
Santa Rosa
|
| implements | Total Maximum Daily Loads in the North Coast region ⓘ |
| jurisdiction |
North Coast region of California
ⓘ
linked to:
North Coast of California
|
| legalBasis |
Porter-Cologne Water Quality Control Act
ⓘ
federal Clean Water Act (implementation at regional level) ⓘ |
| mission | to preserve, enhance, and restore the quality of California’s water resources in the North Coast region ⓘ |
| monitors |
water quality in other North Coast watersheds
ⓘ
water quality in the Eel River Basin ⓘ |
| oversees |
industrial discharges to surface waters
ⓘ
nonpoint source pollution control programs ⓘ stormwater programs ⓘ wastewater treatment plant discharges ⓘ water quality monitoring programs ⓘ |
| parentAgency | State Water Resources Control Board ⓘ |
| partOf |
California Environmental Protection Agency
ⓘ
California Water Boards ⓘ |
| regionNumber | Region 1 ⓘ |
| regulates |
Eel River Basin waters
ⓘ
linked to:
Eel River Basin
coastal waters in the North Coast region ⓘ groundwater ⓘ lakes in the North Coast region ⓘ rivers in the North Coast region ⓘ surface waters ⓘ water quality ⓘ |
| responsibleFor |
developing and implementing water quality control plans
ⓘ
enforcing state and federal water quality laws ⓘ issuing National Pollutant Discharge Elimination System permits ⓘ issuing waste discharge requirements ⓘ |
| state |
California
ⓘ
linked to:
California, United States
|
| subjectArea |
environmental regulation
ⓘ
water resource management ⓘ |
| supervises | implementation of basin plans in the North Coast region ⓘ |
| website | https://www.waterboards.ca.gov/northcoast/ ⓘ |
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: North Coast Regional Water Quality Control Board Description of subject: 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.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: North Coast Regional Water Quality Control Board
California State Water Resources Control Board
→
subdivision
→
North Coast Regional Water Quality Control Board
ⓘ
linked to: North Coast Regional Water Quality Control Board
California State Water Resources Control Board
→
hasComponent
→
North Coast Regional Water Quality Control Board
ⓘ
subject linked to:
SWRCB
California Regional Water Quality Control Board
→
hasPart
→
North Coast Regional Water Quality Control Board
ⓘ