MACKAY, ID · Custer County
MACKAY CITY OF Water System
Consumer Confidence Report status
MACKAY CITY OF 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 MACKAY CITY OF.
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 Idaho’s official records. Always confirm current status with Idaho before making decisions based on this information.
System facts
- System ID (PWSID)
- ID7190032
- System type
- Community Water System
- Population served
- 566
- Service connections
- 400
- Ownership
- local government
- Water source
- groundwater (wells)
MACKAY CITY OF is one of 133 community water systems in Idaho in the 501 to 3,300 people size category, serving 566 people from groundwater.
As of August 1, 2026, its federal record holds 3 entries between 1991 and 2013, all of which EPA lists as closed. Nothing has been added since 2013.
None of the 3 are monitoring or reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset; these involve water-quality, treatment, or public-notice findings instead. The record involves the Total Coliform Rules.
Violation history
Maximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
July 1, 2013 – July 31, 2013
ArchivedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
June 1, 1992 – June 30, 1992
ArchivedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
October 1, 1991 – October 31, 1991
Archived
Archived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| July 1, 2013 – July 31, 2013 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Archived |
| June 1, 1992 – June 30, 1992 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Archived |
| October 1, 1991 – October 31, 1991 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Archived |
Archived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
No enforcement actions on record for this system.
Common questions
Is MACKAY CITY OF required to publish a Consumer Confidence Report?
- Yes. MACKAY CITY OF 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 MACKAY CITY OF’s next Consumer Confidence Report due?
- MACKAY CITY OF’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does MACKAY CITY OF have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for MACKAY CITY OF.
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
MANGUM, RICHARD
208-588-2274
MACKAY, ID 83251