Public Water Partners

MISSOULA, MT · Missoula County

EL MAR ESTATES MSLA CO WATER Water System

Consumer Confidence Report status

EL MAR ESTATES MSLA CO WATER 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 EL MAR ESTATES MSLA CO WATER.

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)
MT0000517
System type
Community Water System
Population served
1,350
Service connections
498
Ownership
privately owned
Water source
groundwater (wells)

EL MAR ESTATES MSLA CO WATER is one of 123 community water systems in Montana in the 501 to 3,300 people size category, serving 1,350 people from groundwater.

As of August 1, 2026, its federal record holds 16 entries between 1996 and 2005, all of which EPA lists as closed. Nothing has been added since 2005.

Of the 16, 15 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 inorganic chemicals, the Total Coliform Rules, and synthetic organic chemicals.

Violation history

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    August 1, 2005 – August 31, 2005

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) phthalate

    April 1, 2005 – June 30, 2005

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    April 1, 2001 – April 30, 2001

    Resolved

  • Monitoring, Regular

    —

    Nitrate-Nitrite

    January 1, 2000 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Nitrate-Nitrite

    January 1, 2000 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Nitrate-Nitrite

    January 1, 2000 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Nitrate-Nitrite

    January 1, 2000 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Nitrate-Nitrite

    January 1, 2000 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Nitrate-Nitrite

    January 1, 2000 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Nitrate-Nitrite

    January 1, 2000 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Nitrate

    January 1, 1999 – December 31, 1999

    Resolved

  • Monitoring, Routine Minor (TCR)

    —

    Coliform (TCR)

    July 1, 1998 – July 31, 1998

    Resolved

  • Monitoring, Routine Minor (TCR)

    —

    Coliform (TCR)

    June 1, 1998 – June 30, 1998

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    February 1, 1998 – February 28, 1998

    Resolved

  • Monitoring, Routine Minor (TCR)

    —

    Coliform (TCR)

    December 1, 1997 – December 31, 1997

    Resolved

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    April 1, 1996 – April 30, 1996

    Resolved

Resolved addressed and confirmed by the state

Enforcement actions

Common questions

Is EL MAR ESTATES MSLA CO WATER required to publish a Consumer Confidence Report?

Yes. EL MAR ESTATES MSLA CO WATER 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 EL MAR ESTATES MSLA CO WATER’s next Consumer Confidence Report due?

EL MAR ESTATES MSLA CO WATER’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does EL MAR ESTATES MSLA CO WATER have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for EL MAR ESTATES MSLA CO WATER.

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

OCONNOR, BRENT

406-258-4832

MISSOULA, MT 59808