Public water system · OH7449718
ActiveRiehm Amlc
At a glance
Riehm Amlc (PWSID OH7449718) is an active transient non-community water system in Seneca County, Ohio. It reports serving 25 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 4 violations for this system; none is health-based, and the most recent began in April 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
25
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Riehm Amlc compare with other water systems in Seneca County?
By EPA's size categories, Riehm Amlc is a very small system (500 people or fewer). Seneca County has 56 active public water systems. Its population served is well below the county average of 826 people per system, and accounts for less than 0.1% of the 46,231 people reported by systems filed under the county. Across Ohio, the 3,854 active systems average 2,767 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Riehm Amlc is well below that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. Ohio has 2,282 active transient non-community water systems, 59% of the state's 3,854 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 3,446 Ohio systems (89%) list groundwater as their primary source.
Who owns and regulates Riehm Amlc?
EPA lists Riehm Amlc as privately owned. 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. 49 of the 56 active systems in Seneca County (88%) are also privately owned.
Does Riehm Amlc have drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in April 2024. The violations listed here began between September 2021 and April 2024. By type: 3 monitoring and 1 monitoring and reporting. The contaminant or rule involved most often is Revised Total Coliform Rule (3 of them). EPA lists 4 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 |
|---|---|---|---|---|
| 2024-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2023-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2022-07-20 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2021-09-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | 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.
Riehm Amlc: frequently asked questions
Who runs Riehm Amlc?
Riehm Amlc (PWSID OH7449718) is a transient non-community water system privately owned. It is regulated by the OH state drinking water program.
How many people does Riehm Amlc serve?
Riehm Amlc reports serving 25 people through 1 service connection in Seneca County, Ohio.
Where does Riehm Amlc 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 Riehm Amlc have any drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in April 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 Riehm Amlc'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. EPA's records list 4 violations for this system; none is health-based, and the most recent began in April 2024. For current results, consult EPA ECHO, or the OH state drinking water program.
Where can I find Riehm Amlc's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Riehm Amlc is a 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 Seneca County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Aqua Ohio - Tiffin | Seneca | 20,279 | Community | Surface water |
| Fostoria City | Seneca | 13,441 | Community | Surface water |
| Green Springs Village Pws | Seneca | 1,592 | Community | Purchased surface water |
| Attica Village | Seneca | 1,148 | Community | Surface water |
| Bloomville Village Pws | Seneca | 956 | Community | Groundwater |
| Hopewell-Loudon School | Seneca | 890 | Non-transient non-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, “Riehm Amlc, PWSID OH7449718, Ohio”, https://aquacensus.com/water-systems/ohio/riehm-amlc-oh7449718 (data as of October 1, 2026).