Is BLACK EAGLE CASCADE COUNTY WATER SEWER required to publish a Consumer Confidence Report?

Yes. BLACK EAGLE CASCADE COUNTY WATER SEWER 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 BLACK EAGLE CASCADE COUNTY WATER SEWER’s next Consumer Confidence Report due?

BLACK EAGLE CASCADE COUNTY WATER SEWER’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.

BLACK EAGLE, MT · Cascade County

BLACK EAGLE CASCADE COUNTY WATER SEWER Water System

Consumer Confidence Report status

BLACK EAGLE CASCADE COUNTY WATER SEWER 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 BLACK EAGLE CASCADE COUNTY WATER SEWER.

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): MT0000157
System type: Community Water System
Population served: 1,233
Service connections: 501
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

BLACK EAGLE CASCADE COUNTY WATER SEWER is one of 123 community water systems in Montana in the 501 to 3,300 people size category, serving 1,233 people from surface water.

As of August 1, 2026, its federal record holds 7 entries between 2014 and 2019, all of which EPA lists as closed. Nothing has been added since 2019.

Of the 7, 2 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 Stage 2 Disinfectants and Disinfection Byproducts Rule and the Total Coliform Rules.

Violation history

Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
January 1, 2019 – March 31, 2019
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
October 1, 2018 – December 31, 2018
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
July 1, 2018 – September 30, 2018
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
April 1, 2018 – June 30, 2018
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
June 1, 2014 – June 30, 2014
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2014 – March 31, 2014
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2014 – March 31, 2014
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
January 1, 2019 – March 31, 2019	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
October 1, 2018 – December 31, 2018	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
July 1, 2018 – September 30, 2018	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
April 1, 2018 – June 30, 2018	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
June 1, 2014 – June 30, 2014	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
January 1, 2014 – March 31, 2014	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

No enforcement actions on record for this system.

Common questions

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

PECK, SARAH

406-761-4408

BLACK EAGLE, MT 59414