Is GREENHORN SUBD required to publish a Consumer Confidence Report?

Yes. GREENHORN SUBD 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 GREENHORN SUBD’s next Consumer Confidence Report due?

GREENHORN SUBD’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.

KETCHUM, ID · Blaine County

GREENHORN SUBD Water System

Consumer Confidence Report status

GREENHORN SUBD 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 GREENHORN SUBD.

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): ID5070020
System type: Community Water System
Population served: 75
Service connections: 29
Ownership: privately owned
Water source: groundwater (wells)

GREENHORN SUBD is one of 969 community water systems in Idaho in the 500 or fewer people size category, serving 75 people from groundwater.

As of August 1, 2026, its federal record holds 2 entries between 2019 and 2022, all of which EPA lists as closed. Nothing has been added since 2022.

Of the 2, 1 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 Lead and Copper Rule and the Stage 2 Disinfectants and Disinfection Byproducts Rule.

Violation history

Initial, Follow-up, or Routine Source Water M/R
—
Lead and Copper Rule
July 1, 2022 – February 5, 2024
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
October 1, 2019 – December 31, 2019
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2022 – February 5, 2024	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	—	Resolved
October 1, 2019 – December 31, 2019	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

August 16, 2025State Public Notification requested1 linked violation
August 13, 2025State Violation/Reminder Notice1 linked violation
February 23, 2025State Public Notification requested1 linked violation
February 20, 2025State Violation/Reminder Notice1 linked violation
May 9, 2024State Violation/Reminder Notice2 linked violations
March 11, 2024State Public Notification requested2 linked violations
November 9, 2023State Violation/Reminder Notice2 linked violations
October 12, 2023State Violation/Reminder Notice2 linked violations
October 12, 2023State Violation/Reminder Notice2 linked violations
February 28, 2023State Violation/Reminder Notice9 linked violations
September 15, 2020State Public Notification received3 linked violations
June 15, 2020State Public Notification requested3 linked violations
April 13, 2020State Public Notification requested2 linked violations
April 13, 2020State Public Notification requested2 linked violations
January 7, 2020State Public Notification received2 linked violations
December 13, 2019State Violation/Reminder Notice2 linked violations
December 13, 2019State Violation/Reminder Notice3 linked violations
October 21, 2019State Public Notification requested2 linked violations
October 21, 2019State Public Notification requested3 linked violations
May 23, 2018State Compliance achieved3 linked violations
February 12, 2018State Public Notification requested3 linked violations
July 31, 2017State Violation/Reminder Notice2 linked violations
July 21, 2017State Public Notification received2 linked violations
October 10, 2013State Public Notification requested4 linked violations
May 1, 2012State Violation/Reminder Notice2 linked violations
November 4, 2010State Public Notification requested5 linked violations
October 4, 2010State Public Notification requested1 linked violation
October 1, 2010State Violation/Reminder Notice2 linked violations

Common questions

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

GILMOUR, JON

208-720-5893

KETCHUM, ID 83340