Is MELLEN SUBD WATER DIST required to publish a Consumer Confidence Report?

Yes. MELLEN SUBD WATER DIST 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 MELLEN SUBD WATER DIST’s next Consumer Confidence Report due?

MELLEN SUBD WATER DIST’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

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.

MOUNTAIN HOME, ID · Elmore County

MELLEN SUBD WATER DIST Water System

Consumer Confidence Report status

MELLEN SUBD WATER DIST 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 MELLEN SUBD WATER DIST.

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): ID4200089
System type: Community Water System
Population served: 250
Service connections: 119
Ownership: privately owned
Water source: groundwater (wells)

MELLEN SUBD WATER DIST is one of 969 community water systems in Idaho in the 500 or fewer people size category, serving 250 people from groundwater.

As of August 1, 2026, its federal record holds 9 entries in 2023, all of which EPA lists as closed. Nothing has been added since 2023.

All 9 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 synthetic organic chemicals, inorganic chemicals, and volatile organic chemicals.

Violation history

Monitoring, Regular
—
Barium
January 1, 2023 – March 6, 2025
Archived
Monitoring, Regular
—
Nickel
January 1, 2023 – March 6, 2025
Archived
Monitoring, Regular
—
Glyphosate
January 1, 2023 – March 6, 2025
Archived
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
January 1, 2023 – March 6, 2025
Archived
Monitoring, Regular
—
Picloram
January 1, 2023 – March 6, 2025
Archived
Monitoring, Regular
—
2,4-D
January 1, 2023 – March 6, 2025
Archived
Monitoring, Regular
—
Benzo(a)pyrene
January 1, 2023 – March 6, 2025
Archived
Monitoring, Regular
—
Total Polychlorinated Biphenyls (PCB)
January 1, 2023 – March 6, 2025
Archived
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2023 – March 6, 2025
Archived

Archived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
January 1, 2023 – March 6, 2025	Monitoring, Regular	Barium	—	Archived
January 1, 2023 – March 6, 2025	Monitoring, Regular	Nickel	—	Archived
January 1, 2023 – March 6, 2025	Monitoring, Regular	Glyphosate	—	Archived
January 1, 2023 – March 6, 2025	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Archived
January 1, 2023 – March 6, 2025	Monitoring, Regular	Picloram	—	Archived
January 1, 2023 – March 6, 2025	Monitoring, Regular	2,4-D	—	Archived
January 1, 2023 – March 6, 2025	Monitoring, Regular	Benzo(a)pyrene	—	Archived
January 1, 2023 – March 6, 2025	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Archived
January 1, 2023 – March 6, 2025	Monitoring, Regular	o-Dichlorobenzene	—	Archived

Archived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

May 8, 2025State Public Notification requested1 linked violation
May 8, 2025State Public Notification requested2 linked violations
May 8, 2025State Public Notification requested1 linked violation
May 5, 2025State Violation/Reminder Notice2 linked violations
May 5, 2025State Violation/Reminder Notice2 linked violations
May 5, 2025State Violation/Reminder Notice1 linked violation
February 23, 2025State Public Notification requested1 linked violation
February 23, 2025State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
February 23, 2025State Public Notification requested1 linked violation
February 23, 2025State Public Notification requested21 linked violations
February 23, 2025State Public Notification requested29 linked violations
February 23, 2025State Public Notification requested9 linked violations
February 20, 2025State Violation/Reminder Notice9 linked violations
February 20, 2025State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
February 20, 2025State Violation/Reminder Notice22 linked violations
February 20, 2025State Violation/Reminder Notice29 linked violations
February 20, 2025State Violation/Reminder Notice1 linked violation
February 20, 2025State Violation/Reminder Notice1 linked violation
April 19, 2023State Compliance achieved2 linked violations
November 12, 2022State Public Notification requested1 linked violation
November 9, 2022State Violation/Reminder Notice1 linked violation
May 14, 2022State Public Notification requested1 linked violation
May 11, 2022State Violation/Reminder Notice1 linked violation
April 25, 2022State Compliance achieved8 linked violations
April 25, 2022State Compliance achieved1 linked violation
February 12, 2022State Public Notification requested1 linked violation
February 10, 2022State Public Notification requested1 linked violation
February 9, 2022State Violation/Reminder Notice1 linked violation
February 7, 2022State Violation/Reminder Notice1 linked violation
January 10, 2022State Public Notification requested1 linked violation
January 7, 2022State Violation/Reminder Notice1 linked violation
December 10, 2021State Public Notification requested1 linked violation
December 7, 2021State Violation/Reminder Notice1 linked violation
November 7, 2021State Public Notification requested1 linked violation
November 5, 2021State Public Notification requested2 linked violations
November 4, 2021State Violation/Reminder Notice1 linked violation
November 2, 2021State Violation/Reminder Notice1 linked violation
August 6, 2021State Public Notification requested2 linked violations
February 10, 2021State Violation/Reminder Notice2 linked violations
November 20, 2020State Public Notification requested2 linked violations
November 19, 2020State Public Notification requested1 linked violation
November 19, 2020State Compliance achieved4 linked violations
November 16, 2020State Violation/Reminder Notice2 linked violations
August 12, 2020State Compliance achieved2 linked violations
August 9, 2020State Public Notification requested2 linked violations
August 6, 2020State Violation/Reminder Notice2 linked violations
February 24, 2020State Public Notification requested2 linked violations
February 21, 2020State Violation/Reminder Notice2 linked violations
February 21, 2020State Violation/Reminder Notice1 linked violation
August 15, 2017State Compliance achieved3 linked violations

Common questions

Is MELLEN SUBD WATER DIST required to publish a Consumer Confidence Report?: Yes. MELLEN SUBD WATER DIST 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 MELLEN SUBD WATER DIST’s next Consumer Confidence Report due?: MELLEN SUBD WATER DIST’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does MELLEN SUBD WATER DIST have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for MELLEN SUBD WATER DIST.
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

PEDROZA, ERIKA

208-590-2869

MOUNTAIN HOME, ID 83647