Public water system · OH4700411
ActiveElyria Water Department
At a glance
Elyria Water Department (PWSID OH4700411) is an active community water system in Lorain County, Ohio. It reports serving 68,000 people through 24,490 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in March 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
68,000
Service connections
24,490
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Elyria Water Department compare with other water systems in Lorain County?
By EPA's size categories, Elyria Water Department is a large system (10,001 to 100,000 people). Lorain County has 16 active public water systems, and Elyria Water Department is the 2nd-largest of them by population served. Its population served is about 3.3 times the county average of 20,599 people per system, and accounts for 21% of the 329,580 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 Elyria Water Department is about 10 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. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 102 Ohio systems (2.6%) list surface water as their primary source.
Who owns and regulates Elyria Water Department?
EPA lists Elyria Water Department 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. 12 of the 16 active systems in Lorain County (75%) are also owned by a local government.
Does Elyria Water Department have drinking water violations?
Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in March 2023. The violations listed here began between July 2002 and March 2023. By type: 7 monitoring and reporting, 4 required treatment not met and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Interim Enhanced Surface Water Treatment Rule (3 of them). EPA lists 9 as resolved and 3 as archived. 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. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2023-03-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Archived |
| 2015-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 2014-11-01 | Required treatment not metSingle Turbidity Exceed (Enhanced SWTR) · code 43 | Interim Enhanced Surface Water Treatment Rulecode 0300 | Yes | Resolved |
| 2012-02-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2011-12-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
| 2003-03-01 | Required treatment not metSingle Turbidity Exceed (Enhanced SWTR) · code 43 | Interim Enhanced Surface Water Treatment Rulecode 0300 | Yes | Resolved |
| 2003-01-01 | Required treatment not metWQP Entry Point/Tap Treatment Technique Non-Compliance · code 59 | Lead and Copper Rulecode 5000 | Yes | Archived |
| 2002-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Bariumcode 1010 | No | Resolved |
| 2002-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Berylliumcode 1075 | No | Resolved |
| 2002-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nickelcode 1036 | No | Resolved |
| 2002-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Seleniumcode 1045 | No | Resolved |
| 2002-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Thalliumcode 1085 | 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.
Elyria Water Department: frequently asked questions
Who runs Elyria Water Department?
Elyria Water Department (PWSID OH4700411) is a community water system owned by a local government. It is regulated by the OH state drinking water program.
How many people does Elyria Water Department serve?
Elyria Water Department reports serving 68,000 people through 24,490 service connections in Lorain County, Ohio.
Where does Elyria Water Department get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Elyria Water Department have any drinking water violations?
Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in March 2023. 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 Elyria Water Department's 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, 5 are health-based, and the most recent began in March 2023. For current results, consult the system's annual water quality report, EPA ECHO, or the OH state drinking water program.
Where can I find Elyria Water Department's water quality report?
As a community water system, Elyria Water Department 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 Lorain County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Rural Lorain Co. Water A | Lorain | 73,125 | Community | Purchased surface water |
| Lorain City Pws | Lorain | 64,152 | Community | Surface water |
| North Ridgeville City Pws | Lorain | 29,465 | Community | Purchased surface water |
| Avon City Pws | Lorain | 23,800 | Community | Purchased surface water |
| Avon Lake City Pws | Lorain | 23,659 | Community | Surface water |
| Amherst City Pws | Lorain | 11,797 | Community | Purchased 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, “Elyria Water Department, PWSID OH4700411, Ohio”, https://aquacensus.com/water-systems/ohio/elyria-water-department-oh4700411 (data as of October 1, 2026).