Is MOUNTAIN CITY WATER AND SEWER required to publish a Consumer Confidence Report?

Yes. MOUNTAIN CITY WATER AND 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 MOUNTAIN CITY WATER AND SEWER’s next Consumer Confidence Report due?

MOUNTAIN CITY WATER AND 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.

MOUNTAIN CITY, NV · Elko County

MOUNTAIN CITY WATER AND SEWER Water System

Consumer Confidence Report status

MOUNTAIN CITY WATER AND 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 1 open health-based violation for MOUNTAIN CITY WATER AND 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 Nevada’s official records. Always confirm current status with Nevada before making decisions based on this information.

System facts

System ID (PWSID): NV0000170
System type: Community Water System
Population served: 30
Service connections: 65
Ownership: local government
Water source: groundwater (wells)

MOUNTAIN CITY WATER AND SEWER is one of 293 community water systems in Nevada in the 500 or fewer people size category, serving 30 people from groundwater.

As of August 1, 2026, its federal record holds 6 entries between 1988 and 2019, of which 1 health-based item remains open.

Of the 6, 3 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 Total Coliform Rules, the Stage 1 Disinfectants and Disinfection Byproducts Rule, and the Groundwater Rule.

Violation history

Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
June 1, 2019 – June 30, 2019
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2019 – June 30, 2019
Resolved
Failure To Address Deficiency
Health-based
Groundwater Rule
February 28, 2019
Unaddressed
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
October 1, 2009 – October 31, 2009
Resolved
Notification, Public
—
Coliform (Pre-TCR)
March 31, 1988 – April 30, 1988
Archived
Notification, Public
—
Coliform (Pre-TCR)
January 31, 1988 – February 29, 1988
Archived

Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yetArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
June 1, 2019 – June 30, 2019	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
April 1, 2019 – June 30, 2019	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
February 28, 2019	Failure To Address Deficiency	Groundwater Rule	Health-based	Unaddressed
October 1, 2009 – October 31, 2009	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
March 31, 1988 – April 30, 1988	Notification, Public	Coliform (Pre-TCR)	—	Archived
January 31, 1988 – February 29, 1988	Notification, Public	Coliform (Pre-TCR)	—	Archived

Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yetArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

March 3, 2023State Public Notification received3 linked violations
August 20, 2019State Public Notification requested2 linked violations
July 1, 2019State Compliance achieved2 linked violations
July 1, 2019State Compliance achieved3 linked violations

Common questions

Is MOUNTAIN CITY WATER AND SEWER required to publish a Consumer Confidence Report?: Yes. MOUNTAIN CITY WATER AND 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 MOUNTAIN CITY WATER AND SEWER’s next Consumer Confidence Report due?: MOUNTAIN CITY WATER AND SEWER’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does MOUNTAIN CITY WATER AND SEWER have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show 1 open health-based violation for MOUNTAIN CITY WATER AND 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

BASENEZ, LOUISE

775-763-6629

MOUNTAIN CITY, NV 89831