Public water system · ME0092867
ActiveCoastal Subs
At a glance
Coastal Subs (PWSID ME0092867) is an active transient non-community water system in Washington County, Maine. It reports serving 25 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 January 2026.
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 Coastal Subs compare with other water systems in Washington County?
By EPA's size categories, Coastal Subs is a very small system (500 people or fewer). Washington County has 109 active public water systems. Its population served is well below the county average of 205 people per system, and accounts for 0.1% of the 22,334 people reported by systems filed under the county. Across Maine, the 1,862 active systems average 503 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Coastal Subs 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. Maine has 1,091 active transient non-community water systems, 59% 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 Coastal Subs?
EPA lists Coastal Subs 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. 71 of the 109 active systems in Washington County (65%) are also privately owned.
Does Coastal Subs have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2026. The violations listed here began between July 2025 and January 2026. By type: 6 public notice, recordkeeping or other, 5 monitoring and 1 monitoring and reporting. The contaminant or rule involved most often is Public Notice (6 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 |
|---|---|---|---|---|
| 2026-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2025-12-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2025-11-15 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2025-11-03 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2025-11-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2025-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2025-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2025-09-28 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2025-09-12 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2025-08-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2025-07-28 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2025-07-19 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | 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.
Coastal Subs: frequently asked questions
Who runs Coastal Subs?
Coastal Subs (PWSID ME0092867) is a transient non-community water system privately owned. It is regulated by the ME state drinking water program.
How many people does Coastal Subs serve?
Coastal Subs reports serving 25 people through 1 service connection in Washington County, Maine.
Where does Coastal Subs 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 Coastal Subs 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 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 Coastal Subs' 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 January 2026. For current results, consult EPA ECHO, or the ME state drinking water program.
Where can I find Coastal Subs' water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Coastal Subs 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 Washington County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Calais Water Dept | Washington | 2,775 | Community | Groundwater |
| Passamaquoddy Water District | Washington | 2,125 | Community | Surface water |
| Lubec Water District | Washington | 1,775 | Community | Groundwater |
| Baileyville Utilities District | Washington | 1,688 | Community | Groundwater |
| Machias Water Company | Washington | 1,390 | Community | Groundwater |
| Indian Township Tribal Water System | Washington | 535 | 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, “Coastal Subs, PWSID ME0092867, Maine”, https://aquacensus.com/water-systems/maine/coastal-subs-me0092867 (data as of October 1, 2026).