ENNIS, MT · Madison County
ENNIS TOWN OF Water System
Consumer Confidence Report status
ENNIS TOWN 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 ENNIS TOWN 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 Montana’s official records. Always confirm current status with Montana before making decisions based on this information.
System facts
- System ID (PWSID)
- MT0000208
- System type
- Community Water System
- Population served
- 1,400
- Service connections
- 757
- Ownership
- local government
- Water source
- groundwater (wells)
ENNIS TOWN OF is one of 123 community water systems in Montana in the 501 to 3,300 people size category, serving 1,400 people from groundwater.
As of August 1, 2026, its federal record holds 55 entries between 1994 and 2023, all of which EPA lists as closed. Nothing has been added since 2023.
Of the 55, 52 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, the Total Coliform Rules, and the Lead and Copper Rule.
Violation history
Follow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
October 1, 2023 – August 12, 2024
ResolvedFollow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
October 1, 2020 – August 12, 2024
ResolvedMonitoring, Regular
—Chlordane
July 1, 2018 – September 30, 2018
ResolvedMonitoring, Regular
—Endrin
July 1, 2018 – September 30, 2018
ResolvedMonitoring, Regular
—BHC-GAMMA
July 1, 2018 – September 30, 2018
ResolvedMonitoring, Regular
—Methoxychlor
July 1, 2018 – September 30, 2018
ResolvedMonitoring, Regular
—Toxaphene
July 1, 2018 – September 30, 2018
ResolvedMonitoring, Regular
—Dalapon
July 1, 2018 – September 30, 2018
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) adipate
July 1, 2018 – September 30, 2018
ResolvedMonitoring, Regular
—OXAMYL
July 1, 2018 – September 30, 2018
ResolvedMonitoring, Regular
—Simazine
July 1, 2018 – September 30, 2018
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) phthalate
July 1, 2018 – September 30, 2018
ResolvedMonitoring, Regular
—Picloram
July 1, 2018 – September 30, 2018
ResolvedMonitoring, Regular
—Dinoseb
July 1, 2018 – September 30, 2018
ResolvedMonitoring, Regular
—Hexachlorocyclopentadiene
July 1, 2018 – September 30, 2018
ResolvedMonitoring, Regular
—Carbofuran
July 1, 2018 – September 30, 2018
ResolvedMonitoring, Regular
—Atrazine
July 1, 2018 – September 30, 2018
ResolvedMonitoring, Regular
—LASSO
July 1, 2018 – September 30, 2018
ResolvedMonitoring, Regular
—Heptachlor
July 1, 2018 – September 30, 2018
ResolvedMonitoring, Regular
—Heptachlor epoxide
July 1, 2018 – September 30, 2018
ResolvedMonitoring, Regular
—2,4-D
July 1, 2018 – September 30, 2018
ResolvedMonitoring, Regular
—2,4,5-TP
July 1, 2018 – September 30, 2018
ResolvedMonitoring, Regular
—Benzo(a)pyrene
July 1, 2018 – September 30, 2018
ResolvedMonitoring, Regular
—Pentachlorophenol
July 1, 2018 – September 30, 2018
ResolvedMonitoring, Regular
—HEXACHLOROBENZENE
July 1, 2018 – September 30, 2018
ResolvedMonitoring, Regular
—Benzo(a)pyrene
January 1, 2018 – March 31, 2018
ResolvedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
January 1, 2018 – March 31, 2018
ResolvedMonitoring, Regular
—Endrin
January 1, 2018 – March 31, 2018
ResolvedMonitoring, Regular
—BHC-GAMMA
January 1, 2018 – March 31, 2018
ResolvedMonitoring, Regular
—Methoxychlor
January 1, 2018 – March 31, 2018
ResolvedMonitoring, Regular
—Toxaphene
January 1, 2018 – March 31, 2018
ResolvedMonitoring, Regular
—Dalapon
January 1, 2018 – March 31, 2018
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) adipate
January 1, 2018 – March 31, 2018
ResolvedMonitoring, Regular
—OXAMYL
January 1, 2018 – March 31, 2018
ResolvedMonitoring, Regular
—Simazine
January 1, 2018 – March 31, 2018
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) phthalate
January 1, 2018 – March 31, 2018
ResolvedMonitoring, Regular
—Picloram
January 1, 2018 – March 31, 2018
ResolvedMonitoring, Regular
—Dinoseb
January 1, 2018 – March 31, 2018
ResolvedMonitoring, Regular
—Hexachlorocyclopentadiene
January 1, 2018 – March 31, 2018
ResolvedMonitoring, Regular
—Carbofuran
January 1, 2018 – March 31, 2018
ResolvedMonitoring, Regular
—Atrazine
January 1, 2018 – March 31, 2018
ResolvedMonitoring, Regular
—LASSO
January 1, 2018 – March 31, 2018
ResolvedMonitoring, Regular
—Heptachlor
January 1, 2018 – March 31, 2018
ResolvedMonitoring, Regular
—Heptachlor epoxide
January 1, 2018 – March 31, 2018
ResolvedMonitoring, Regular
—2,4-D
January 1, 2018 – March 31, 2018
ResolvedMonitoring, Regular
—2,4,5-TP
January 1, 2018 – March 31, 2018
ResolvedMonitoring, Regular
—HEXACHLOROBENZENE
January 1, 2018 – March 31, 2018
ResolvedMonitoring, Regular
—Pentachlorophenol
January 1, 2018 – March 31, 2018
ResolvedMonitoring, Regular
—Chlordane
January 1, 2018 – March 31, 2018
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
April 1, 2008 – April 30, 2008
ResolvedFollow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
October 1, 2004 – August 10, 2004
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
June 1, 2002 – June 30, 2002
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
November 1, 1994 – November 30, 1994
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
October 1, 1994 – October 31, 1994
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
September 1, 1994 – September 30, 1994
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| October 1, 2023 – August 12, 2024 | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | — | Resolved |
| October 1, 2020 – August 12, 2024 | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | — | Resolved |
| July 1, 2018 – September 30, 2018 | Monitoring, Regular | Chlordane | — | Resolved |
| July 1, 2018 – September 30, 2018 | Monitoring, Regular | Endrin | — | Resolved |
| July 1, 2018 – September 30, 2018 | Monitoring, Regular | BHC-GAMMA | — | Resolved |
| July 1, 2018 – September 30, 2018 | Monitoring, Regular | Methoxychlor | — | Resolved |
| July 1, 2018 – September 30, 2018 | Monitoring, Regular | Toxaphene | — | Resolved |
| July 1, 2018 – September 30, 2018 | Monitoring, Regular | Dalapon | — | Resolved |
| July 1, 2018 – September 30, 2018 | Monitoring, Regular | Di(2-ethylhexyl) adipate | — | Resolved |
| July 1, 2018 – September 30, 2018 | Monitoring, Regular | OXAMYL | — | Resolved |
| July 1, 2018 – September 30, 2018 | Monitoring, Regular | Simazine | — | Resolved |
| July 1, 2018 – September 30, 2018 | Monitoring, Regular | Di(2-ethylhexyl) phthalate | — | Resolved |
| July 1, 2018 – September 30, 2018 | Monitoring, Regular | Picloram | — | Resolved |
| July 1, 2018 – September 30, 2018 | Monitoring, Regular | Dinoseb | — | Resolved |
| July 1, 2018 – September 30, 2018 | Monitoring, Regular | Hexachlorocyclopentadiene | — | Resolved |
| July 1, 2018 – September 30, 2018 | Monitoring, Regular | Carbofuran | — | Resolved |
| July 1, 2018 – September 30, 2018 | Monitoring, Regular | Atrazine | — | Resolved |
| July 1, 2018 – September 30, 2018 | Monitoring, Regular | LASSO | — | Resolved |
| July 1, 2018 – September 30, 2018 | Monitoring, Regular | Heptachlor | — | Resolved |
| July 1, 2018 – September 30, 2018 | Monitoring, Regular | Heptachlor epoxide | — | Resolved |
| July 1, 2018 – September 30, 2018 | Monitoring, Regular | 2,4-D | — | Resolved |
| July 1, 2018 – September 30, 2018 | Monitoring, Regular | 2,4,5-TP | — | Resolved |
| July 1, 2018 – September 30, 2018 | Monitoring, Regular | Benzo(a)pyrene | — | Resolved |
| July 1, 2018 – September 30, 2018 | Monitoring, Regular | Pentachlorophenol | — | Resolved |
| July 1, 2018 – September 30, 2018 | Monitoring, Regular | HEXACHLOROBENZENE | — | Resolved |
| January 1, 2018 – March 31, 2018 | Monitoring, Regular | Benzo(a)pyrene | — | Resolved |
| January 1, 2018 – March 31, 2018 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Resolved |
| January 1, 2018 – March 31, 2018 | Monitoring, Regular | Endrin | — | Resolved |
| January 1, 2018 – March 31, 2018 | Monitoring, Regular | BHC-GAMMA | — | Resolved |
| January 1, 2018 – March 31, 2018 | Monitoring, Regular | Methoxychlor | — | Resolved |
| January 1, 2018 – March 31, 2018 | Monitoring, Regular | Toxaphene | — | Resolved |
| January 1, 2018 – March 31, 2018 | Monitoring, Regular | Dalapon | — | Resolved |
| January 1, 2018 – March 31, 2018 | Monitoring, Regular | Di(2-ethylhexyl) adipate | — | Resolved |
| January 1, 2018 – March 31, 2018 | Monitoring, Regular | OXAMYL | — | Resolved |
| January 1, 2018 – March 31, 2018 | Monitoring, Regular | Simazine | — | Resolved |
| January 1, 2018 – March 31, 2018 | Monitoring, Regular | Di(2-ethylhexyl) phthalate | — | Resolved |
| January 1, 2018 – March 31, 2018 | Monitoring, Regular | Picloram | — | Resolved |
| January 1, 2018 – March 31, 2018 | Monitoring, Regular | Dinoseb | — | Resolved |
| January 1, 2018 – March 31, 2018 | Monitoring, Regular | Hexachlorocyclopentadiene | — | Resolved |
| January 1, 2018 – March 31, 2018 | Monitoring, Regular | Carbofuran | — | Resolved |
| January 1, 2018 – March 31, 2018 | Monitoring, Regular | Atrazine | — | Resolved |
| January 1, 2018 – March 31, 2018 | Monitoring, Regular | LASSO | — | Resolved |
| January 1, 2018 – March 31, 2018 | Monitoring, Regular | Heptachlor | — | Resolved |
| January 1, 2018 – March 31, 2018 | Monitoring, Regular | Heptachlor epoxide | — | Resolved |
| January 1, 2018 – March 31, 2018 | Monitoring, Regular | 2,4-D | — | Resolved |
| January 1, 2018 – March 31, 2018 | Monitoring, Regular | 2,4,5-TP | — | Resolved |
| January 1, 2018 – March 31, 2018 | Monitoring, Regular | HEXACHLOROBENZENE | — | Resolved |
| January 1, 2018 – March 31, 2018 | Monitoring, Regular | Pentachlorophenol | — | Resolved |
| January 1, 2018 – March 31, 2018 | Monitoring, Regular | Chlordane | — | Resolved |
| April 1, 2008 – April 30, 2008 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Resolved |
| October 1, 2004 – August 10, 2004 | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | — | Resolved |
| June 1, 2002 – June 30, 2002 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| November 1, 1994 – November 30, 1994 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| October 1, 1994 – October 31, 1994 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| September 1, 1994 – September 30, 1994 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- August 12, 2024State Compliance achieved2 linked violations
- August 12, 2024State Compliance achieved2 linked violations
- November 9, 2023State Violation/Reminder Notice1 linked violation
- November 9, 2023State Public Notification requested2 linked violations
- October 20, 2020State Violation/Reminder Notice2 linked violations
- December 17, 2018State Compliance achieved23 linked violations
- October 17, 2018State Public Notification requested24 linked violations
- October 17, 2018State Violation/Reminder Notice24 linked violations
- May 15, 2018State Compliance achieved24 linked violations
- May 15, 2018State Compliance achieved2 linked violations
- April 23, 2018State Public Notification requested2 linked violations
- April 23, 2018State Violation/Reminder Notice2 linked violations
- April 23, 2018State Public Notification requested2 linked violations
- April 23, 2018State Violation/Reminder Notice1 linked violation
- April 23, 2018State Public Notification requested23 linked violations
- January 4, 2005State Public Notification requested1 linked violation
- January 4, 2005State Violation/Reminder Notice1 linked violation
- August 10, 2004State Compliance achieved1 linked violation
- July 21, 2002State Violation/Reminder Notice1 linked violation
- June 19, 2001State Public Notification requested1 linked violation
- June 19, 2001State Violation/Reminder Notice1 linked violation
- May 14, 2001State Compliance achieved1 linked violation
- December 18, 1999State Public Notification requested1 linked violation
Common questions
Is ENNIS TOWN OF required to publish a Consumer Confidence Report?
- Yes. ENNIS TOWN 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 ENNIS TOWN OF’s next Consumer Confidence Report due?
- ENNIS TOWN OF’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does ENNIS TOWN OF have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for ENNIS TOWN 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
HAAS, NICI
406-902-9097
ENNIS, MT 59729