Public water system · ME0094466
ActiveBlack Horse Inn
At a glance
Black Horse Inn (PWSID ME0094466) is an active community water system in Waldo County, Maine. It reports serving 38 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in August 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
38
Service connections
1
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Black Horse Inn compare with other water systems in Waldo County?
By EPA's size categories, Black Horse Inn is a very small system (500 people or fewer). Waldo County has 75 active public water systems. Its population served is well below the county average of 257 people per system, and accounts for 0.2% of the 19,252 people reported by systems filed under the county. Across Maine, the 1,862 active systems average 503 people each. Nationally, the average active community water system reports serving 6,703 people, so Black Horse Inn 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. Maine has 386 active community water systems, 21% of the state's 1,862 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,780 Maine systems (96%) list groundwater as their primary source.
Who owns and regulates Black Horse Inn?
EPA lists Black Horse Inn as privately owned. The ME state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 57 of the 75 active systems in Waldo County (76%) are also privately owned.
Does Black Horse Inn have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in August 2023. The violations listed here began between October 2020 and August 2023. By type: 7 monitoring, 3 monitoring and reporting and 2 public notice, recordkeeping or other. The contaminant or rule involved most often is Revised Total Coliform Rule (7 of them). EPA lists 12 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 |
|---|---|---|---|---|
| 2023-08-11 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2023-07-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2023-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2023-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2023-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2022-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2022-06-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2022-05-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-09-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-05-31 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2020-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | 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.
Black Horse Inn: frequently asked questions
Who runs Black Horse Inn?
Black Horse Inn (PWSID ME0094466) is a community water system privately owned. It is regulated by the ME state drinking water program.
How many people does Black Horse Inn serve?
Black Horse Inn reports serving 38 people through 1 service connection in Waldo County, Maine.
Where does Black Horse Inn 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 Black Horse Inn have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in August 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 Black Horse Inn'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, none is health-based, and the most recent began in August 2023. For current results, consult the system's annual water quality report, EPA ECHO, or the ME state drinking water program.
Where can I find Black Horse Inn's water quality report?
As a community water system, Black Horse Inn 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 Waldo County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Belfast Water District | Waldo | 5,698 | Community | Groundwater |
| Searsport Water District | Waldo | 2,763 | Community | Groundwater |
| Rsu 03 Mt View School | Waldo | 1,100 | Non-transient non-community | Groundwater |
| Winterport Water District | Waldo | 763 | Community | Groundwater |
| Fort Knox | Waldo | 592 | Transient non-community | Groundwater |
| Northport Village Corp Water Dept | Waldo | 550 | Community | Purchased 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, “Black Horse Inn, PWSID ME0094466, Maine”, https://aquacensus.com/water-systems/maine/black-horse-inn-me0094466 (data as of October 1, 2026).