EUREKA, MT · Lincoln County
EUREKA TOWN OF Water System
Consumer Confidence Report status
EUREKA 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 EUREKA 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)
- MT0000210
- System type
- Community Water System
- Population served
- 1,995
- Service connections
- 747
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
EUREKA TOWN OF is one of 123 community water systems in Montana in the 501 to 3,300 people size category, serving 1,995 people from surface water.
As of August 1, 2026, its federal record holds 7 entries between 2000 and 2017, all of which EPA lists as closed. Nothing has been added since 2017.
Of the 7, 5 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, the Surface Water Treatment Rules, and the Total Coliform Rules.
Violation history
Water Quality Parameter M/R
—Lead and Copper Rule
January 1, 2017 – June 5, 2017
ResolvedFailure to Filter (SWTR)
Health-basedSurface Water Treatment Rule
August 22, 2011 – January 31, 2018
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
March 1, 2009 – March 31, 2009
ResolvedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
January 1, 2007 – December 31, 2007
ResolvedWater Quality Parameter M/R
—Lead and Copper Rule
July 1, 2002 – December 31, 2002
ResolvedWater Quality Parameter M/R
—Lead and Copper Rule
July 1, 2000 – December 31, 2000
ResolvedWater Quality Parameter M/R
—Lead and Copper Rule
January 1, 2000 – June 30, 2000
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| January 1, 2017 – June 5, 2017 | Water Quality Parameter M/R | Lead and Copper Rule | — | Resolved |
| August 22, 2011 – January 31, 2018 | Failure to Filter (SWTR) | Surface Water Treatment Rule | Health-based | Resolved |
| March 1, 2009 – March 31, 2009 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| January 1, 2007 – December 31, 2007 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| July 1, 2002 – December 31, 2002 | Water Quality Parameter M/R | Lead and Copper Rule | — | Resolved |
| July 1, 2000 – December 31, 2000 | Water Quality Parameter M/R | Lead and Copper Rule | — | Resolved |
| January 1, 2000 – June 30, 2000 | Water Quality Parameter M/R | Lead and Copper Rule | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- January 31, 2018State Compliance achieved1 linked violation
- July 18, 2017State Violation/Reminder Notice2 linked violations
- June 5, 2017State Compliance achieved1 linked violation
- March 16, 2012State Administrative/Compliance Order without penalty issued1 linked violation
- August 22, 2011State Violation/Reminder Notice2 linked violations
- August 22, 2011State Other2 linked violations
- April 3, 2009State Public Notification received7 linked violations
- March 6, 2009State Public Notification requested6 linked violations
- January 5, 2009State Compliance achieved5 linked violations
- February 19, 2008State Compliance achieved18 linked violations
- January 3, 2005State Public Notification requested1 linked violation
- January 3, 2005State Public Notification requested2 linked violations
- January 3, 2005State Violation/Reminder Notice1 linked violation
- January 3, 2005State Violation/Reminder Notice14 linked violations
- January 3, 2005State Public Notification requested4 linked violations
- January 3, 2005State Public Notification requested2 linked violations
- January 3, 2005State Public Notification requested5 linked violations
- January 3, 2005State Public Notification requested6 linked violations
Common questions
Is EUREKA TOWN OF required to publish a Consumer Confidence Report?
- Yes. EUREKA 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 EUREKA TOWN OF’s next Consumer Confidence Report due?
- EUREKA TOWN OF’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does EUREKA TOWN OF have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for EUREKA 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
FLYNN, KEVIN A
406-253-3852
EUREKA, MT 59917