Detroit Water and Sewerage Department
E419581
The Detroit Water and Sewerage Department is the municipal agency responsible for providing water and wastewater services to Detroit and several surrounding communities.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Detroit Water and Sewerage Department canonical | 2 |
| Detroit Water and Sewerage Department water quality laboratories | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4187735 — 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: Detroit Water and Sewerage Department Context triple: [Government of Detroit, hasPart, Detroit Water and Sewerage Department]
-
A.
Metropolitan Water Reclamation District of Greater Chicago
The Metropolitan Water Reclamation District of Greater Chicago is a special-purpose governmental agency responsible for wastewater treatment, stormwater management, and flood control across the Chicago metropolitan area.
-
B.
Portland Water Bureau
The Portland Water Bureau is the municipal agency responsible for providing and managing the drinking water supply and related water services for the city of Portland, Oregon.
-
C.
District of Columbia Water and Sewer Authority
The District of Columbia Water and Sewer Authority is the public utility responsible for providing drinking water and wastewater services to Washington, D.C. and parts of the surrounding region.
-
D.
Los Angeles Department of Water and Power
The Los Angeles Department of Water and Power is the largest municipal utility in the United States, providing water and electricity to the City of Los Angeles and overseeing key regional water resources.
-
E.
Eastpoint Water and Sewer District
Eastpoint Water and Sewer District is a local special district in Franklin County, Florida, responsible for providing water and sewer services to the Eastpoint community.
- 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: Detroit Water and Sewerage Department Target entity description: The Detroit Water and Sewerage Department is the municipal agency responsible for providing water and wastewater services to Detroit and several surrounding communities.
-
A.
Metropolitan Water Reclamation District of Greater Chicago
The Metropolitan Water Reclamation District of Greater Chicago is a special-purpose governmental agency responsible for wastewater treatment, stormwater management, and flood control across the Chicago metropolitan area.
-
B.
Portland Water Bureau
The Portland Water Bureau is the municipal agency responsible for providing and managing the drinking water supply and related water services for the city of Portland, Oregon.
-
C.
District of Columbia Water and Sewer Authority
The District of Columbia Water and Sewer Authority is the public utility responsible for providing drinking water and wastewater services to Washington, D.C. and parts of the surrounding region.
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D.
Los Angeles Department of Water and Power
The Los Angeles Department of Water and Power is the largest municipal utility in the United States, providing water and electricity to the City of Los Angeles and overseeing key regional water resources.
-
E.
Eastpoint Water and Sewer District
Eastpoint Water and Sewer District is a local special district in Franklin County, Florida, responsible for providing water and sewer services to the Eastpoint community.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
government agency
ⓘ
municipal water and sewerage utility ⓘ |
| aimsTo |
protect public health through wastewater treatment
ⓘ
provide safe drinking water ⓘ |
| collaboratesWith | Great Lakes Water Authority ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| follows |
Clean Water Act
ⓘ
Safe Drinking Water Act ⓘ |
| governedBy | Detroit City Council ⓘ |
| hasJurisdictionOver |
municipal sewer system of Detroit
ⓘ
municipal water system of Detroit ⓘ |
| hasPart |
customer service division
ⓘ
engineering and maintenance division ⓘ wastewater operations division ⓘ water distribution division ⓘ |
| hasType | public utility ⓘ |
| headquartersLocation |
Detroit
ⓘ
surface form:
Detroit, Michigan
|
| industry |
drinking water supply
ⓘ
sewerage services ⓘ wastewater treatment ⓘ |
| languageOfWorkOrName | English ⓘ |
| locatedIn |
Detroit
ⓘ
Michigan ⓘ |
| operates |
stormwater infrastructure
ⓘ
wastewater treatment facilities ⓘ water treatment facilities ⓘ |
| operatesIn | Southeast Michigan ⓘ |
| ownedBy | City of Detroit NERFINISHED ⓘ |
| parentOrganization |
Government of Detroit
ⓘ
surface form:
City of Detroit government
|
| regulatedBy |
Michigan Department of Environmental Quality
ⓘ
surface form:
Michigan Department of Environment, Great Lakes, and Energy
United States Environmental Protection Agency ⓘ
surface form:
U.S. Environmental Protection Agency
|
| regulates | water usage for connected customers ⓘ |
| responsibleFor |
billing for sewer services
ⓘ
billing for water services ⓘ maintenance of sewer lines in Detroit ⓘ maintenance of water mains in Detroit ⓘ stormwater management on its system ⓘ |
| sector | public sector ⓘ |
| serves |
City of Detroit
NERFINISHED
ⓘ
Macomb County communities ⓘ Oakland County communities ⓘ Wayne County communities ⓘ |
| serviceType |
sewer collection
ⓘ
wastewater treatment services ⓘ water distribution ⓘ |
| subjectOf |
environmental compliance oversight
ⓘ
infrastructure modernization programs ⓘ water quality regulations ⓘ |
| usesResource | Great Lakes freshwater supply ⓘ |
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: Detroit Water and Sewerage Department Description of subject: The Detroit Water and Sewerage Department is the municipal agency responsible for providing water and wastewater services to Detroit and several surrounding communities.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
Detroit water system (Lake Huron via Detroit Water and Sewerage Department)
→
managedBy
→
Detroit Water and Sewerage Department
ⓘ
Detroit water system (Lake Huron via Detroit Water and Sewerage Department)
→
monitoredBy
→
Detroit Water and Sewerage Department
ⓘ
this entity surface form:
Detroit Water and Sewerage Department water quality laboratories