Public water system · OH4700003
ActiveAmherst City Pws
At a glance
Amherst City Pws (PWSID OH4700003) is an active community water system in Lorain County, Ohio. It reports serving 11,797 people through 6,100 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list 4 violations for this system; none is health-based, and the most recent began in July 2021.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
11,797
Service connections
6,100
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Amherst City Pws compare with other water systems in Lorain County?
By EPA's size categories, Amherst City Pws is a large system (10,001 to 100,000 people). Lorain County has 16 active public water systems. Its population served is about 43% below the county average of 20,599 people per system, and accounts for 3.6% 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 Amherst City Pws is about 76% above 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 Amherst City Pws?
EPA lists Amherst 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. 12 of the 16 active systems in Lorain County (75%) are also owned by a local government.
Does Amherst City Pws have drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in July 2021. The violations listed here began between January 1995 and July 2021. By type: 2 public notice, recordkeeping or other and 2 monitoring and reporting. The contaminant or rule involved most often is Consumer Confidence Rule (2 of them). EPA lists 3 as resolved and 1 as unaddressed. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2021-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2019-01-23 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 2009-12-31 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1995-01-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
All 4 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.
Amherst City Pws: frequently asked questions
Who runs Amherst City Pws?
Amherst City Pws (PWSID OH4700003) is a community water system owned by a local government. It is regulated by the OH state drinking water program.
How many people does Amherst City Pws serve?
Amherst City Pws reports serving 11,797 people through 6,100 service connections in Lorain County, Ohio.
Where does Amherst 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 Amherst City Pws have any drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in July 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 Amherst 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 4 violations for this system; none is health-based, and the most recent began in July 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 Amherst City Pws' water quality report?
As a community water system, Amherst 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 Lorain County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Rural Lorain Co. Water A | Lorain | 73,125 | Community | Purchased surface water |
| Elyria Water Department | Lorain | 68,000 | Community | 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 |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Amherst City Pws, PWSID OH4700003, Ohio”, https://aquacensus.com/water-systems/ohio/amherst-city-pws-oh4700003 (data as of October 1, 2026).