Is HIDDEN HEIGHTS HOA required to publish a Consumer Confidence Report?

Yes. HIDDEN HEIGHTS HOA 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 HIDDEN HEIGHTS HOA’s next Consumer Confidence Report due?

HIDDEN HEIGHTS HOA’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.

MISSOULA, MT · Missoula County

HIDDEN HEIGHTS HOA Water System

Consumer Confidence Report status

HIDDEN HEIGHTS HOA 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 HIDDEN HEIGHTS HOA.

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 Montana’s official records. Always confirm current status with Montana before making decisions based on this information.

System facts

System ID (PWSID): MT0002120
System type: Community Water System
Population served: 65
Service connections: 22
Ownership: privately owned
Water source: groundwater (wells)

HIDDEN HEIGHTS HOA is one of 1,084 community water systems in Montana in the 500 or fewer people size category, serving 65 people from groundwater.

As of August 1, 2026, its federal record holds 17 entries between 1981 and 2018, all of which EPA lists as closed. Nothing has been added since 2018.

Of the 17, 12 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 Total Coliform Rules, the Lead and Copper Rule, and inorganic chemicals.

Violation history

Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
September 1, 2018 – September 30, 2018
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2018 – August 30, 2018
Resolved
Monitoring, Regular
—
Nitrate-Nitrite
January 1, 2018 – December 31, 2018
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
January 1, 2014 – February 3, 2014
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2012 – July 18, 2012
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 2011 – August 29, 2011
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2010 – July 23, 2013
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
January 1, 2010 – February 11, 2011
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
November 1, 2008 – November 30, 2008
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
May 1, 2006 – May 31, 2006
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
November 1, 2005 – November 30, 2005
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 2004 – October 31, 2004
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
July 1, 2002 – December 31, 2002
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
July 1, 2002 – December 31, 2002
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
January 1, 2001 – June 30, 2001
Resolved
Monitoring, Regular
—
Nitrate
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
Fluoride
June 24, 1981 – July 23, 1981
Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
September 1, 2018 – September 30, 2018	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2018 – August 30, 2018	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Nitrate-Nitrite	—	Resolved
January 1, 2014 – February 3, 2014	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
July 1, 2012 – July 18, 2012	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
August 1, 2011 – August 29, 2011	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 2010 – July 23, 2013	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
January 1, 2010 – February 11, 2011	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
November 1, 2008 – November 30, 2008	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
May 1, 2006 – May 31, 2006	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
November 1, 2005 – November 30, 2005	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
October 1, 2004 – October 31, 2004	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 2002 – December 31, 2002	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
July 1, 2002 – December 31, 2002	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
January 1, 2001 – June 30, 2001	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	Nitrate	—	Resolved
June 24, 1981 – July 23, 1981	Monitoring, Regular	Fluoride	—	Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

February 28, 2019State Public Notification received1 linked violation
January 27, 2019State Compliance achieved1 linked violation
January 17, 2019State Public Notification requested1 linked violation
January 17, 2019State Violation/Reminder Notice1 linked violation
October 15, 2018State Public Notification requested1 linked violation
October 15, 2018State Violation/Reminder Notice1 linked violation
October 4, 2018State Compliance achieved1 linked violation
August 30, 2018State Compliance achieved1 linked violation
July 17, 2018State Violation/Reminder Notice1 linked violation
February 3, 2014State Compliance achieved1 linked violation
January 23, 2014State Violation/Reminder Notice1 linked violation
July 23, 2013State Compliance achieved1 linked violation
November 15, 2012State Public Notification received1 linked violation
October 31, 2012State Violation/Reminder Notice1 linked violation
October 31, 2012State Public Notification requested1 linked violation
July 18, 2012State Compliance achieved1 linked violation
July 12, 2012State Public Notification requested1 linked violation
July 12, 2012State Violation/Reminder Notice1 linked violation
September 22, 2011State Public Notification requested1 linked violation
September 22, 2011State Violation/Reminder Notice1 linked violation
August 29, 2011State Compliance achieved1 linked violation
February 11, 2011State Compliance achieved1 linked violation
January 13, 2011State Violation/Reminder Notice1 linked violation
September 25, 2009State Compliance achieved2 linked violations
May 15, 2009State Compliance achieved1 linked violation
December 29, 2008State Public Notification received1 linked violation
December 17, 2008State Public Notification requested1 linked violation
December 17, 2008State Violation/Reminder Notice1 linked violation
May 6, 2007State Compliance achieved1 linked violation
May 17, 2006State Violation/Reminder Notice1 linked violation
May 17, 2006State Violation/Reminder Notice2 linked violations
May 17, 2006State Public Notification requested1 linked violation
February 15, 2006State Compliance achieved2 linked violations
December 7, 2005State Violation/Reminder Notice1 linked violation
December 7, 2005State Public Notification requested1 linked violation
May 23, 2005State Compliance achieved1 linked violation
January 3, 2005State Public Notification requested5 linked violations
January 3, 2005State Violation/Reminder Notice2 linked violations
January 3, 2005State Public Notification requested8 linked violations
January 3, 2005State Public Notification requested29 linked violations
October 19, 2004State Public Notification requested1 linked violation
June 19, 2003State Compliance achieved8 linked violations
October 10, 1983State no additional Formal Action needed1 linked violation

Common questions

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

FAGERHAUG, LARRY

406-544-5116

MISSOULA, MT 59804