Ypsilanti city water system
E781013
The Ypsilanti city water system is the municipal infrastructure network that supplies and manages potable water and related services for the city of Ypsilanti, Michigan.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Ypsilanti city water system canonical | 1 |
| Ypsilanti municipal water system | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9141512 — 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: Ypsilanti city water system Context triple: [Ypsilanti Water Tower, builtFor, Ypsilanti city water system]
-
A.
Detroit Water and Sewerage Department
The Detroit Water and Sewerage Department is the municipal agency responsible for providing water and wastewater services to Detroit and several surrounding communities.
-
B.
Downriver, Michigan
Downriver, Michigan is a suburban region south of Detroit comprising several working- and middle-class communities along the Detroit River.
-
C.
Ypsilanti Township, Michigan
Ypsilanti Township, Michigan is a charter township in Washtenaw County that forms part of the greater Ann Arbor–Ypsilanti metropolitan area and includes a mix of residential, industrial, and transportation hubs.
-
D.
Croton water supply system
The Croton water supply system is a historic network of reservoirs, aqueducts, and related infrastructure that delivers drinking water from New York’s Croton River watershed to New York City.
-
E.
Eaton Rapids, Michigan
Eaton Rapids, Michigan is a small city in Eaton County known for its historic downtown, island parks, and location along the Grand River.
- 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: Ypsilanti city water system Target entity description: The Ypsilanti city water system is the municipal infrastructure network that supplies and manages potable water and related services for the city of Ypsilanti, Michigan.
-
A.
Detroit Water and Sewerage Department
The Detroit Water and Sewerage Department is the municipal agency responsible for providing water and wastewater services to Detroit and several surrounding communities.
-
B.
Downriver, Michigan
Downriver, Michigan is a suburban region south of Detroit comprising several working- and middle-class communities along the Detroit River.
-
C.
Ypsilanti Township, Michigan
Ypsilanti Township, Michigan is a charter township in Washtenaw County that forms part of the greater Ann Arbor–Ypsilanti metropolitan area and includes a mix of residential, industrial, and transportation hubs.
-
D.
Croton water supply system
The Croton water supply system is a historic network of reservoirs, aqueducts, and related infrastructure that delivers drinking water from New York’s Croton River watershed to New York City.
-
E.
Eaton Rapids, Michigan
Eaton Rapids, Michigan is a small city in Eaton County known for its historic downtown, island parks, and location along the Grand River.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf | municipal water system ⓘ |
| compliesWith | Safe Drinking Water Act (United States) NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| fundingSource |
municipal budget
ⓘ
water rates ⓘ |
| hasCharacteristic |
pressurized distribution network
ⓘ
treated water delivery ⓘ |
| hasFunction |
leak detection and repair
ⓘ
water metering ⓘ water pressure management ⓘ |
| infrastructureType |
hydrants
ⓘ
pumping stations ⓘ valves ⓘ water mains ⓘ water service lines ⓘ water storage facilities ⓘ |
| locatedIn |
Michigan
NERFINISHED
ⓘ
Washtenaw County, Michigan NERFINISHED ⓘ Ypsilanti, Michigan NERFINISHED ⓘ |
| managedBy | City of Ypsilanti government NERFINISHED ⓘ |
| monitoredFor |
chemical contaminants
ⓘ
disinfection byproducts ⓘ lead and copper levels ⓘ microbial contaminants ⓘ water quality ⓘ |
| owner | City of Ypsilanti NERFINISHED ⓘ |
| purpose |
supply safe drinking water to residents
ⓘ
support fire suppression ⓘ support public health ⓘ |
| regulatoryAuthority |
Michigan Department of Environment, Great Lakes, and Energy
NERFINISHED
ⓘ
United States Environmental Protection Agency NERFINISHED ⓘ |
| regulatoryDomain | drinking water ⓘ |
| sector | public utility ⓘ |
| serviceArea | City of Ypsilanti NERFINISHED ⓘ |
| serviceType |
fire protection water supply
ⓘ
potable water supply ⓘ water distribution ⓘ |
| serviceUsers |
commercial customers
ⓘ
institutional customers ⓘ residential customers ⓘ |
| subjectTo |
local ordinances of City of Ypsilanti
ⓘ
state of Michigan water regulations ⓘ |
| utilityClass | municipal utility ⓘ |
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: Ypsilanti city water system Description of subject: The Ypsilanti city water system is the municipal infrastructure network that supplies and manages potable water and related services for the city of Ypsilanti, Michigan.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Ypsilanti municipal water system