Public water system · OH1503412
ActiveGuilford Lake Estates
At a glance
Guilford Lake Estates (PWSID OH1503412) is an active community water system in Columbiana County, Ohio. It reports serving 125 people through 75 service connections. 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 January 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
125
Service connections
75
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Guilford Lake Estates compare with other water systems in Columbiana County?
By EPA's size categories, Guilford Lake Estates is a very small system (500 people or fewer). Columbiana County has 98 active public water systems. Its population served is well below the county average of 711 people per system, and accounts for 0.2% of the 69,705 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 Guilford Lake Estates is well below 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. 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 Guilford Lake Estates?
EPA lists Guilford Lake Estates 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. 88 of the 98 active systems in Columbiana County (90%) are also privately owned.
Does Guilford Lake Estates have drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in January 2026. The violations listed here began between June 1989 and January 2026. By type: 3 public notice, recordkeeping or other and 1 monitoring and reporting. The contaminant or rule involved most often is Consumer Confidence Rule (3 of them). EPA lists 2 as resolved, 1 as unaddressed and 1 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement. 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 |
|---|---|---|---|---|
| 2026-01-14 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 2024-09-25 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2015-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 1989-06-23 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Archived |
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.
Guilford Lake Estates: frequently asked questions
Who runs Guilford Lake Estates?
Guilford Lake Estates (PWSID OH1503412) is a community water system privately owned. It is regulated by the OH state drinking water program.
How many people does Guilford Lake Estates serve?
Guilford Lake Estates reports serving 125 people through 75 service connections in Columbiana County, Ohio.
Where does Guilford Lake Estates 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 Guilford Lake Estates have any drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in January 2026. 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 Guilford Lake Estates' 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 January 2026. For current results, consult the system's annual water quality report, EPA ECHO, or the OH state drinking water program.
Where can I find Guilford Lake Estates' water quality report?
As a community water system, Guilford Lake Estates 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 Columbiana County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Salem City | Columbiana | 16,850 | Community | Surface water |
| East Liverpool City | Columbiana | 12,586 | Community | Surface water |
| Buckeye Water District - Ohio River | Columbiana | 10,300 | Community | Surface water |
| Columbiana City Pws | Columbiana | 6,727 | Community | Groundwater |
| East Palestine Village Pws | Columbiana | 4,761 | Community | Groundwater |
| Lisbon Village | Columbiana | 2,821 | 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, “Guilford Lake Estates, PWSID OH1503412, Ohio”, https://aquacensus.com/water-systems/ohio/guilford-lake-estates-oh1503412 (data as of October 1, 2026).