Is SIERRA ESTATES MUTUAL WATER COMPANY required to publish a Consumer Confidence Report?

Yes. SIERRA ESTATES MUTUAL WATER COMPANY 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 SIERRA ESTATES MUTUAL WATER COMPANY’s next Consumer Confidence Report due?

SIERRA ESTATES MUTUAL WATER COMPANY’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.

PENN VALLEY, CA · Nevada County

SIERRA ESTATES MUTUAL WATER COMPANY Water System

Consumer Confidence Report status

SIERRA ESTATES MUTUAL WATER COMPANY 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 SIERRA ESTATES MUTUAL WATER COMPANY.

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 California’s official records. Always confirm current status with California before making decisions based on this information.

System facts

System ID (PWSID): CA2900548
System type: Community Water System
Population served: 100
Service connections: 32
Ownership: privately owned
Water source: groundwater (wells)

SIERRA ESTATES MUTUAL WATER COMPANY is one of 3,951 community water systems in California in the 500 or fewer people size category, serving 100 people from groundwater.

As of August 1, 2026, its federal record holds 3 entries in 1982, all of which EPA lists as closed. Nothing has been added since 1982.

None of the 3 are monitoring or reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset; these involve water-quality, treatment, or public-notice findings instead. The record involves the Miscellaneous Other Rules.

Violation history

Notification, Public
—
No contaminant on record
December 1, 1982 – December 31, 1982
Archived
Notification, Public
—
No contaminant on record
November 1, 1982 – November 30, 1982
Archived
Notification, Public
—
No contaminant on record
October 1, 1982 – October 31, 1982
Archived

Archived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
December 1, 1982 – December 31, 1982	Notification, Public	—	—	Archived
November 1, 1982 – November 30, 1982	Notification, Public	—	—	Archived
October 1, 1982 – October 31, 1982	Notification, Public	—	—	Archived

Archived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

September 1, 2020State Compliance achieved8 linked violations
April 21, 2015State Compliance achieved2 linked violations
March 4, 2015State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
November 14, 2014State Boil Water Order4 linked violations
November 14, 2014State Boil Water Order3 linked violations
November 14, 2014State Public Notification requested3 linked violations
November 14, 2014State Technical Assistance Visit1 linked violation
November 14, 2014State Compliance achieved1 linked violation
November 14, 2014State Technical Assistance Visit3 linked violations
November 14, 2014State Public Notification received3 linked violations
September 3, 2003State Technical Assistance Visit1 linked violation
August 22, 2003State Public Notification requested1 linked violation
March 21, 2003State Boil Water Order2 linked violations
February 15, 2003State Compliance achieved2 linked violations
January 8, 2003State Boil Water Order2 linked violations
July 23, 2001State Compliance achieved3 linked violations
July 15, 2001State Public Notification requested3 linked violations

Common questions

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

CROSS, ROXANNE

530-575-0720

PENN VALLEY, CA 95946