Public water system · NY2111848
ActiveNys Thruway - Indian Castle/Iroquois
At a glance
Nys Thruway - Indian Castle/Iroquois (PWSID NY2111848) is an active non-transient non-community water system in Herkimer County, New York. It reports serving 2,780 people through 2 service connections. Its primary water source is groundwater, and EPA lists it as owned by a state government. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,780
Service connections
2
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Nys Thruway - Indian Castle/Iroquois compare with other water systems in Herkimer County?
By EPA's size categories, Nys Thruway - Indian Castle/Iroquois is a small system (501 to 3,300 people). Herkimer County has 123 active public water systems, and Nys Thruway - Indian Castle/Iroquois is the 6th-largest of them by population served. Its population served is about 7.1 times the county average of 391 people per system, and accounts for 5.8% of the 48,130 people reported by systems filed under the county. Across New York, the 8,167 active systems average 2,374 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Nys Thruway - Indian Castle/Iroquois is about 6.5 times that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. New York has 704 active non-transient non-community water systems, 8.6% of the state's 8,167 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 7,096 New York systems (87%) list groundwater as their primary source.
Who owns and regulates Nys Thruway - Indian Castle/Iroquois?
EPA lists Nys Thruway - Indian Castle/Iroquois as owned by a state government. The NY state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 5 of the 123 active systems in Herkimer County (4.1%) are also owned by a state government.
Does Nys Thruway - Indian Castle/Iroquois have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2024. The violations listed here began between January 2016 and October 2024. By type: 10 monitoring and reporting, 1 reporting and 1 monitoring. The contaminants or rules involved are Lead and Copper Rule Revisions, Nitrate, Revised Total Coliform Rule and Tetrachloroethylene. EPA lists 12 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2024-10-17 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | No | Resolved |
| 2021-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2020-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Tetrachloroethylenecode 2987 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2-Dichloropropanecode 2983 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | cis-1,2-Dichloroethylenecode 2380 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1,1-Trichloroethanecode 2981 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | p-Dichlorobenzenecode 2969 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | trans-1,2-Dichloroethylenecode 2979 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2-Dichloroethanecode 2980 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Dichloromethanecode 2964 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | o-Dichlorobenzenecode 2968 | No | Resolved |
The 12 most recent violations in EPA's records, newest first. Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Nys Thruway - Indian Castle/Iroquois: frequently asked questions
Who runs Nys Thruway - Indian Castle/Iroquois?
Nys Thruway - Indian Castle/Iroquois (PWSID NY2111848) is a non-transient non-community water system owned by a state government. It is regulated by the NY state drinking water program.
How many people does Nys Thruway - Indian Castle/Iroquois serve?
Nys Thruway - Indian Castle/Iroquois reports serving 2,780 people through 2 service connections in Herkimer County, New York.
Where does Nys Thruway - Indian Castle/Iroquois get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Nys Thruway - Indian Castle/Iroquois have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2024. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Nys Thruway - Indian Castle/Iroquois' water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2024. For current results, consult EPA ECHO, or the NY state drinking water program.
Where can I find Nys Thruway - Indian Castle/Iroquois' water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Nys Thruway - Indian Castle/Iroquois is a non-transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Herkimer County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Ilion (V) Water Works | Herkimer | 8,053 | Community | Surface water |
| Herkimer Village | Herkimer | 7,606 | Community | Surface water |
| Little Falls City | Herkimer | 4,605 | Community | Surface water |
| Frankfort (V) Water Works | Herkimer | 2,995 | Community | Groundwater |
| Mohawk (V) Water Works | Herkimer | 2,985 | Community | Groundwater |
| Dolgeville (V) Pws | Herkimer | 2,166 | Community | Surface water |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Nys Thruway - Indian Castle/Iroquois, PWSID NY2111848, New York”, https://aquacensus.com/water-systems/new-york/nys-thruway-indian-castle-iroquois-ny2111848 (data as of October 1, 2026).