SEELEY LAKE, MT · Missoula County
SEELEY LAKE WATER DISTRICT Water System
Consumer Confidence Report status
SEELEY LAKE WATER DISTRICT 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 SEELEY LAKE WATER DISTRICT.
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)
- MT0000327
- System type
- Community Water System
- Population served
- 1,575
- Service connections
- 620
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
SEELEY LAKE WATER DISTRICT is one of 123 community water systems in Montana in the 501 to 3,300 people size category, serving 1,575 people from surface water.
As of August 1, 2026, its federal record holds 57 entries between 1996 and 2020, all of which EPA lists as closed. Nothing has been added since 2020.
Of the 57, 50 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 volatile organic chemicals, the Stage 1 Disinfectants and Disinfection Byproducts Rule, and synthetic organic chemicals.
Violation history
Monitoring, Regular
—Asbestos
January 1, 2020 – December 31, 2022
ResolvedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
April 1, 2018 – June 30, 2018
ResolvedMonitoring and Reporting (DBP)
—TTHM
April 1, 2018 – June 30, 2018
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2017 – July 27, 2017
ResolvedMaximum Contaminant Level Violation, Average
Health-basedTotal Haloacetic Acids (HAA5)
October 1, 2010 – December 31, 2010
ResolvedMaximum Contaminant Level Violation, Average
Health-basedTotal Haloacetic Acids (HAA5)
October 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—Ethylbenzene
January 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—Carbon tetrachloride
January 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
January 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—1,2-Dichloroethane
January 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—o-Dichlorobenzene
January 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—DICHLOROMETHANE
January 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—1,2-Dichloropropane
January 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—Toluene
January 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—Benzene
January 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—CHLOROBENZENE
January 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
January 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—Trichloroethylene
January 1, 2009 – December 31, 2009
ResolvedMaximum Contaminant Level Violation, Average
Health-basedTotal Haloacetic Acids (HAA5)
July 1, 2007 – September 30, 2007
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2007 – July 31, 2008
ResolvedMonitoring, Turbidity (Enhanced SWTR)
—Interim Enhanced Surface Water Treatment Rule
July 1, 2007 – July 31, 2007
ResolvedMaximum Contaminant Level Violation, Average
Health-basedTotal Haloacetic Acids (HAA5)
April 1, 2007 – June 30, 2007
ResolvedMaximum Contaminant Level Violation, Average
Health-basedTotal Haloacetic Acids (HAA5)
October 1, 2006 – December 31, 2006
ResolvedMonitoring, Regular
—Arsenic
January 1, 2006 – December 31, 2006
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
February 1, 1999 – February 28, 1999
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—p-Dichlorobenzene
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—Carbon tetrachloride
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—CHLOROBENZENE
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—1,2,4-Trichlorobenzene
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—Styrene
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—1,2-Dichloroethane
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—Arsenic
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—Xylenes, Total
January 1, 1997 – December 31, 1997
ResolvedMonitoring, Regular
—1,2,4-Trichlorobenzene
January 1, 1997 – December 31, 1997
ResolvedMonitoring, Regular
—CHLOROBENZENE
January 1, 1997 – December 31, 1997
ResolvedMonitoring, Regular
—o-Dichlorobenzene
January 1, 1997 – December 31, 1997
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
January 1, 1997 – December 31, 1997
ResolvedMonitoring, Regular
—Vinyl chloride
January 1, 1997 – December 31, 1997
ResolvedMonitoring, Regular
—1,2-Dichloroethane
January 1, 1997 – December 31, 1997
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
January 1, 1997 – December 31, 1997
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
January 1, 1997 – December 31, 1997
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
January 1, 1997 – December 31, 1997
ResolvedMonitoring, Regular
—1,2-Dichloropropane
January 1, 1997 – December 31, 1997
ResolvedMonitoring, Regular
—Ethylbenzene
January 1, 1997 – December 31, 1997
ResolvedMonitoring, Regular
—Styrene
January 1, 1997 – December 31, 1997
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
January 1, 1997 – December 31, 1997
ResolvedMonitoring, Regular
—Tetrachloroethylene
January 1, 1997 – December 31, 1997
ResolvedMonitoring, Regular
—Toluene
January 1, 1997 – December 31, 1997
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
August 1, 1996 – August 31, 1996
ResolvedMonitoring, Regular
—2,4-D
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Regular
—Dalapon
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Regular
—Dinoseb
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Regular
—Picloram
January 1, 1996 – December 31, 1998
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Asbestos | — | Resolved |
| April 1, 2018 – June 30, 2018 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| April 1, 2018 – June 30, 2018 | Monitoring and Reporting (DBP) | TTHM | — | Resolved |
| July 1, 2017 – July 27, 2017 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| October 1, 2010 – December 31, 2010 | Maximum Contaminant Level Violation, Average | Total Haloacetic Acids (HAA5) | Health-based | Resolved |
| October 1, 2009 – December 31, 2009 | Maximum Contaminant Level Violation, Average | Total Haloacetic Acids (HAA5) | Health-based | Resolved |
| January 1, 2009 – December 31, 2009 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| January 1, 2009 – December 31, 2009 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| January 1, 2009 – December 31, 2009 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| January 1, 2009 – December 31, 2009 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| January 1, 2009 – December 31, 2009 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| January 1, 2009 – December 31, 2009 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| January 1, 2009 – December 31, 2009 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| January 1, 2009 – December 31, 2009 | Monitoring, Regular | Toluene | — | Resolved |
| January 1, 2009 – December 31, 2009 | Monitoring, Regular | Benzene | — | Resolved |
| January 1, 2009 – December 31, 2009 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| January 1, 2009 – December 31, 2009 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| January 1, 2009 – December 31, 2009 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| July 1, 2007 – September 30, 2007 | Maximum Contaminant Level Violation, Average | Total Haloacetic Acids (HAA5) | Health-based | Resolved |
| July 1, 2007 – July 31, 2008 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| July 1, 2007 – July 31, 2007 | Monitoring, Turbidity (Enhanced SWTR) | Interim Enhanced Surface Water Treatment Rule | — | Resolved |
| April 1, 2007 – June 30, 2007 | Maximum Contaminant Level Violation, Average | Total Haloacetic Acids (HAA5) | Health-based | Resolved |
| October 1, 2006 – December 31, 2006 | Maximum Contaminant Level Violation, Average | Total Haloacetic Acids (HAA5) | Health-based | Resolved |
| January 1, 2006 – December 31, 2006 | Monitoring, Regular | Arsenic | — | Resolved |
| February 1, 1999 – February 28, 1999 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | Styrene | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | Arsenic | — | Resolved |
| January 1, 1997 – December 31, 1997 | Monitoring, Regular | Xylenes, Total | — | Resolved |
| January 1, 1997 – December 31, 1997 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| January 1, 1997 – December 31, 1997 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| January 1, 1997 – December 31, 1997 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| January 1, 1997 – December 31, 1997 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| January 1, 1997 – December 31, 1997 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| January 1, 1997 – December 31, 1997 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| January 1, 1997 – December 31, 1997 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| January 1, 1997 – December 31, 1997 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| January 1, 1997 – December 31, 1997 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| January 1, 1997 – December 31, 1997 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| January 1, 1997 – December 31, 1997 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| January 1, 1997 – December 31, 1997 | Monitoring, Regular | Styrene | — | Resolved |
| January 1, 1997 – December 31, 1997 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| January 1, 1997 – December 31, 1997 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| January 1, 1997 – December 31, 1997 | Monitoring, Regular | Toluene | — | Resolved |
| August 1, 1996 – August 31, 1996 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | 2,4-D | — | Resolved |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | Dalapon | — | Resolved |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | Dinoseb | — | Resolved |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | Picloram | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- October 16, 2024State Compliance achieved1 linked violation
- January 24, 2023State Public Notification requested1 linked violation
- January 24, 2023State Violation/Reminder Notice1 linked violation
- September 10, 2018State Compliance achieved1 linked violation
- September 10, 2018State Compliance achieved1 linked violation
- July 18, 2018State Public Notification requested1 linked violation
- July 18, 2018State Violation/Reminder Notice1 linked violation
- July 17, 2018State Violation/Reminder Notice1 linked violation
- July 17, 2018State Public Notification requested1 linked violation
- July 27, 2017State Compliance achieved1 linked violation
- July 20, 2017State Violation/Reminder Notice1 linked violation
- February 8, 2013State Compliance achieved2 linked violations
- January 20, 2011State Violation/Reminder Notice1 linked violation
- January 20, 2011State Public Notification requested1 linked violation
- March 9, 2010State Public Notification received1 linked violation
- March 3, 2010State Compliance achieved21 linked violations
- January 20, 2010State Violation/Reminder Notice2 linked violations
- January 20, 2010State Public Notification requested1 linked violation
- January 19, 2010State Public Notification requested21 linked violations
- January 19, 2010State Violation/Reminder Notice22 linked violations
- January 15, 2010State Public Notification requested3 linked violations
- July 8, 2008Federal Final Administrative Order issued6 linked violations
- July 8, 2008State no additional Formal Action needed6 linked violations
- May 6, 2008State Intentional no-action7 linked violations
- April 23, 2008State Violation/Reminder Notice4 linked violations
- November 20, 2007State Public Notification received3 linked violations
- November 10, 2007State Public Notification requested3 linked violations
- November 10, 2007State Violation/Reminder Notice1 linked violation
- August 15, 2007State Violation/Reminder Notice4 linked violations
- April 11, 2007State Public Notification received3 linked violations
- January 8, 2007State Violation/Reminder Notice3 linked violations
- July 25, 2002State Public Notification requested4 linked violations
- June 27, 2002State Compliance achieved2 linked violations
- June 9, 2000State Compliance achieved50 linked violations
- April 3, 1999State Public Notification requested1 linked violation
- April 3, 1999State Violation/Reminder Notice1 linked violation
Common questions
Is SEELEY LAKE WATER DISTRICT required to publish a Consumer Confidence Report?
- Yes. SEELEY LAKE WATER DISTRICT 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 SEELEY LAKE WATER DISTRICT’s next Consumer Confidence Report due?
- SEELEY LAKE WATER DISTRICT’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does SEELEY LAKE WATER DISTRICT have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for SEELEY LAKE WATER DISTRICT.
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
DERRY, FELICITY
406-677-2559
SEELEY LAKE, MT 59868