NORTHEAST HARBOR, ME · Hancock County
MOUNT DESERT WATER DIST -SEAL Water System
Consumer Confidence Report status
MOUNT DESERT WATER DIST -SEAL must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show no open violations for MOUNT DESERT WATER DIST -SEAL.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Maine’s official records. Always confirm current status with Maine before making decisions based on this information.
System facts
- System ID (PWSID)
- ME0091420
- System type
- Community Water System
- Population served
- 865
- Service connections
- 346
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
MOUNT DESERT WATER DIST -SEAL is one of 91 community water systems in Maine in the 501 to 3,300 people size category, serving 865 people from surface water.
As of August 1, 2026, its federal record holds 7 entries between 2017 and 2025, all of which EPA lists as closed.
Of the 7, 6 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Stage 1 Disinfectants and Disinfection Byproducts Rule and the Consumer Confidence Rule.
Violation history
Monitoring and Reporting (DBP)
—Bromate
July 1, 2025 – September 30, 2025
ResolvedMonitoring and Reporting (DBP)
—Bromate
January 1, 2024 – March 31, 2024
ResolvedMonitoring and Reporting (DBP)
—Bromate
October 1, 2023 – December 31, 2023
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2023 – June 30, 2024
ResolvedMonitoring and Reporting (DBP)
—Bromate
July 1, 2023 – September 30, 2023
ResolvedMonitoring and Reporting (DBP)
—Bromate
July 1, 2017 – September 30, 2017
ResolvedMonitoring and Reporting (DBP)
—CARBON, TOTAL
July 1, 2017 – September 30, 2017
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| July 1, 2025 – September 30, 2025 | Monitoring and Reporting (DBP) | Bromate | — | Resolved |
| January 1, 2024 – March 31, 2024 | Monitoring and Reporting (DBP) | Bromate | — | Resolved |
| October 1, 2023 – December 31, 2023 | Monitoring and Reporting (DBP) | Bromate | — | Resolved |
| July 1, 2023 – June 30, 2024 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| July 1, 2023 – September 30, 2023 | Monitoring and Reporting (DBP) | Bromate | — | Resolved |
| July 1, 2017 – September 30, 2017 | Monitoring and Reporting (DBP) | Bromate | — | Resolved |
| July 1, 2017 – September 30, 2017 | Monitoring and Reporting (DBP) | CARBON, TOTAL | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- February 24, 1994State Public Notification requested3 linked violations
Common questions
Is MOUNT DESERT WATER DIST -SEAL required to publish a Consumer Confidence Report?
- Yes. MOUNT DESERT WATER DIST -SEAL is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is MOUNT DESERT WATER DIST -SEAL’s next Consumer Confidence Report due?
- MOUNT DESERT WATER DIST -SEAL’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does MOUNT DESERT WATER DIST -SEAL have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for MOUNT DESERT WATER DIST -SEAL.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
SLACK, PAUL G
207-276-3733
NORTHEAST HARBOR, ME 04662