Public water system · OH7802403
ActiveNiles City Pws
At a glance
Niles City Pws (PWSID OH7802403) is an active community water system in Trumbull County, Ohio. It reports serving 21,961 people through 9,710 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list 6 violations for this system; 1 is health-based, and the most recent began in January 2021.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
21,961
Service connections
9,710
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Niles City Pws compare with other water systems in Trumbull County?
By EPA's size categories, Niles City Pws is a large system (10,001 to 100,000 people). Trumbull County has 79 active public water systems, and Niles City Pws is the 2nd-largest of them by population served. Its population served is about 11 times the county average of 1,977 people per system, and accounts for 14% of the 156,184 people reported by systems filed under the county. Across Ohio, the 3,854 active systems average 2,767 people each. Nationally, the average active community water system reports serving 6,703 people, so Niles City Pws is about 3.3 times that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Ohio has 1,028 active community water systems, 27% of the state's 3,854 active systems. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 191 Ohio systems (5%) list purchased surface water as their primary source.
Who owns and regulates Niles City Pws?
EPA lists Niles City Pws as owned by a local government. The OH state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 17 of the 79 active systems in Trumbull County (22%) are also owned by a local government.
Does Niles City Pws have drinking water violations?
EPA's records list 6 violations for this system; 1 is health-based, and the most recent began in January 2021. The violations listed here began between July 2004 and January 2021. By type: 5 public notice, recordkeeping or other and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Consumer Confidence Rule (5 of them). EPA lists 3 as unaddressed and 3 as resolved. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement. 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 |
|---|---|---|---|---|
| 2021-01-19 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 2020-02-10 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 2019-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2019-03-05 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 2018-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2004-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
All 6 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.
Niles City Pws: frequently asked questions
Who runs Niles City Pws?
Niles City Pws (PWSID OH7802403) is a community water system owned by a local government. It is regulated by the OH state drinking water program.
How many people does Niles City Pws serve?
Niles City Pws reports serving 21,961 people through 9,710 service connections in Trumbull County, Ohio.
Where does Niles City Pws get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Niles City Pws have any drinking water violations?
EPA's records list 6 violations for this system; 1 is health-based, and the most recent began in January 2021. 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 Niles City Pws' 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. EPA's records list 6 violations for this system; 1 is health-based, and the most recent began in January 2021. For current results, consult the system's annual water quality report, EPA ECHO, or the OH state drinking water program.
Where can I find Niles City Pws' water quality report?
As a community water system, Niles City Pws must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Trumbull County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Warren City Pws | Trumbull | 49,130 | Community | Surface water |
| Girard City | Trumbull | 14,122 | Community | Purchased surface water |
| Trumbull Co. - Southeast Pws | Trumbull | 9,931 | Community | Purchased surface water |
| Hubbard City Pws | Trumbull | 8,518 | Community | Purchased surface water |
| Trumbull Co. - Bazetta/Champion | Trumbull | 8,270 | Community | Purchased surface water |
| Cortland City Pws | Trumbull | 7,105 | Community | Groundwater |
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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, “Niles City Pws, PWSID OH7802403, Ohio”, https://aquacensus.com/water-systems/ohio/niles-city-pws-oh7802403 (data as of October 1, 2026).