Transient Non-Community · PWSID ME0001409

Bar Harbor Koa Oceanside-West Side

Serves 401 peopleGroundwaterOwner: PrivateBar Harbor, Maine
Nothing open right now.

On record since 2013: 8 violations. 1 over the limit · 4 missed or late tests · 3 notices or reports. Most recent began 2025-05-01.

For this year's test results, ask the utility for its annual Consumer Confidence Report. Every community system must publish one.

1Over the limit
0Treatment lapse
4Missed or late test
3Notice or report

More violations on record than 64% of active water systems in Maine. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

200520102013 · Notice or report: 1201520202021 · Over the limit: 12022 · Missed or late test: 12023 · Missed or late test: 22023 · Missed or late test: 22024 · Notice or report: 22024 · Notice or report: 22025 · Missed or late test: 12025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
13% over the limit · 150% missed or late test · 438% notice or report · 3

Across Maine, 59% of violations are missed or late tests and 3% are water over a limit.

Every violation on record

  1. 2025-05-01Revised Total Coliform RuleMONBack in compliance
  2. 2024-05-31Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  3. 2023-10-01Revised Total Coliform RuleMONBack in compliance
  4. 2023-08-01Revised Total Coliform RuleMONBack in compliance
  5. 2022-06-01Revised Total Coliform RuleMONBack in compliance
  6. 2021-08-01Revised Total Coliform RuleMCLBack in compliance
  7. 2013-08-04Public NoticePN Violation for NPDWR ViolationBack in compliance

System details

Population served401
Service connections1
Water sourceGroundwater
System typeTransient Non-Community
OwnerPrivate
StatusActive
CityBar Harbor
EPA ZIP on file04609

Areas served

  • Bar Harbor, Hancock County

Reading this record

Bar Harbor Koa Oceanside-West Side is a transient non-community that draws from groundwater and serves about 401 people in Bar Harbor, Maine. Everything above comes from the EPA's Safe Drinking Water Information System (SDWIS), where states report every violation by every public water system.

Four kinds of violation. Only one is a measurement of the water: over the limit means a test came back above a legal maximum (an MCL). A treatment lapse means a required protective step was not done, such as disinfection, filtration, fixing a defect an inspector found, or filing a lead-pipe inventory. A missed or late test means a required test was skipped or never reported. That is the most common kind, and the most misread: it does not mean the water was bad, and it does not mean the water was fine. Notices and reports covers public notices and the annual Consumer Confidence Report.

Status. “Back in compliance” means the state recorded a return to compliance. “Period ended” means the violation's compliance period is over but no return to compliance was ever filed, which is common in older records. EPA's federal copy lags state records by months, so call the utility for anything current.