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Public water system · ME0092822

Active

Black Fly Coffee Co

At a glance

Black Fly Coffee Co (PWSID ME0092822) is an active transient non-community water system in Penobscot County, Maine. It reports serving 30 people through 2 service connections. 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 October 2025.

Dataset updated . Source: EPA SDWIS/ECHO public records.

Population served

30

Service connections

2

Primary source

GW

Groundwater

System type

TNCWS

Transient non-community water system

System record

PWSIDME0092822
System typeTransient non-community water system
Activity statusActive
Population served30
Service connections2
Primary water sourceGroundwater
Owner typePrivate
Primacy agencyME state drinking water program
City servedHolden
StateMaine
ZIP—
CountyPenobscot County

How does Black Fly Coffee Co compare with other water systems in Penobscot County?

By EPA's size categories, Black Fly Coffee Co is a very small system (500 people or fewer). Penobscot County has 169 active public water systems. Its population served is well below the county average of 547 people per system, and accounts for less than 0.1% of the 92,416 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 Black Fly Coffee Co 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 Black Fly Coffee Co?

EPA lists Black Fly Coffee Co 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. 127 of the 169 active systems in Penobscot County (75%) are also privately owned.

Does Black Fly Coffee Co have drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2025. The violations listed here began between January 2023 and October 2025. By type: 10 monitoring, 1 public notice, recordkeeping or other and 1 monitoring and reporting. The contaminant or rule involved most often is Revised Total Coliform Rule (10 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.

BeganViolationContaminant or ruleHealth-basedStatus
2025-10-01MonitoringMonitoring, Routine (RTCR) · code 3ARevised Total Coliform Rulecode 8000NoResolved
2025-08-01MonitoringMonitoring, Routine (RTCR) · code 3ARevised Total Coliform Rulecode 8000NoResolved
2025-07-01MonitoringMonitoring, Routine (RTCR) · code 3ARevised Total Coliform Rulecode 8000NoResolved
2025-02-01MonitoringMonitoring, Routine (RTCR) · code 3ARevised Total Coliform Rulecode 8000NoResolved
2024-12-01MonitoringMonitoring, Routine (RTCR) · code 3ARevised Total Coliform Rulecode 8000NoResolved
2024-10-01MonitoringMonitoring, Routine (RTCR) · code 3ARevised Total Coliform Rulecode 8000NoResolved
2024-03-28Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75Public Noticecode 7500NoResolved
2024-03-01MonitoringMonitoring, Routine (RTCR) · code 3ARevised Total Coliform Rulecode 8000NoResolved
2023-12-01MonitoringMonitoring, Routine (RTCR) · code 3ARevised Total Coliform Rulecode 8000NoResolved
2023-07-01MonitoringMonitoring, Routine (RTCR) · code 3ARevised Total Coliform Rulecode 8000NoResolved
2023-04-01MonitoringMonitoring, Routine (RTCR) · code 3ARevised Total Coliform Rulecode 8000NoResolved
2023-01-01Monitoring and reportingMonitoring, Regular · code 03Nitratecode 1040NoResolved

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 Fly Coffee Co: frequently asked questions

Who runs Black Fly Coffee Co?

Black Fly Coffee Co (PWSID ME0092822) is a transient non-community water system privately owned. It is regulated by the ME state drinking water program.

How many people does Black Fly Coffee Co serve?

Black Fly Coffee Co reports serving 30 people through 2 service connections in Penobscot County, Maine.

Where does Black Fly Coffee Co 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 Fly Coffee Co 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 October 2025. 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 Fly Coffee Co'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 October 2025. For current results, consult EPA ECHO, or the ME state drinking water program.

Where can I find Black Fly Coffee Co's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Black Fly Coffee Co 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 Penobscot County

Water systemCountyPopulation servedTypeSource
Bangor Water DistrictPenobscot27,298CommunitySurface water
Brewer Water DepartmentPenobscot8,860CommunitySurface water
Old Town Water DistrictPenobscot7,648CommunityGroundwater
Orono-Veazie Water DistrictPenobscot5,793CommunityGroundwater
Maine Water Company Millinocket DivisionPenobscot5,400CommunitySurface water
Hampden Water DistrictPenobscot4,628CommunityPurchased surface water

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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 Fly Coffee Co, PWSID ME0092822, Maine”, https://aquacensus.com/water-systems/maine/black-fly-coffee-co-me0092822 (data as of October 1, 2026).