Is GRIZZLY LAKE CSD-DELLEKER required to publish a Consumer Confidence Report?

Yes. GRIZZLY LAKE CSD-DELLEKER 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 GRIZZLY LAKE CSD-DELLEKER’s next Consumer Confidence Report due?

GRIZZLY LAKE CSD-DELLEKER’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.

PORTOLA, CA · Plumas County

GRIZZLY LAKE CSD-DELLEKER Water System

Consumer Confidence Report status

GRIZZLY LAKE CSD-DELLEKER 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 GRIZZLY LAKE CSD-DELLEKER.

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): CA3200104
System type: Community Water System
Population served: 1,314
Service connections: 351
Ownership: local government
Water source: groundwater (wells)

GRIZZLY LAKE CSD-DELLEKER is one of 728 community water systems in California in the 501 to 3,300 people size category, serving 1,314 people from groundwater.

As of August 1, 2026, its federal record holds 26 entries between 1981 and 2024, all of which EPA lists as closed.

Of the 26, 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 Radionuclides and Revised Rad Rule, the Total Coliform Rules, and the Miscellaneous Other Rules.

Violation history

Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
October 1, 2024 – October 31, 2024
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
September 1, 2024 – September 30, 2024
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
July 1, 2023 – September 30, 2023
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
January 1, 2022 – March 31, 2022
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
July 1, 2021 – September 30, 2021
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
April 1, 2021 – June 30, 2021
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
January 1, 2021 – March 31, 2021
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
October 1, 2020 – December 31, 2020
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
April 1, 2020 – June 30, 2020
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
October 1, 2019 – December 31, 2019
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
July 1, 2019 – September 30, 2019
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
January 1, 2019 – March 31, 2019
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
October 1, 2017 – December 31, 2017
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
April 1, 2017 – June 30, 2017
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
January 1, 2017 – March 31, 2017
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
October 1, 2016 – December 31, 2016
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
January 1, 2016 – March 31, 2016
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
January 1, 2015 – March 31, 2015
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
July 1, 2014 – September 30, 2014
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
October 1, 2013 – December 31, 2013
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
April 1, 2013 – June 30, 2013
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
June 1, 2012 – June 30, 2012
Resolved
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
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
October 1, 1981 – September 30, 1982
Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
October 1, 2024 – October 31, 2024	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
September 1, 2024 – September 30, 2024	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2023 – September 30, 2023	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Archived
January 1, 2022 – March 31, 2022	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Archived
July 1, 2021 – September 30, 2021	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Archived
April 1, 2021 – June 30, 2021	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Archived
January 1, 2021 – March 31, 2021	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Archived
October 1, 2020 – December 31, 2020	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Archived
April 1, 2020 – June 30, 2020	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Archived
October 1, 2019 – December 31, 2019	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Archived
July 1, 2019 – September 30, 2019	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Archived
January 1, 2019 – March 31, 2019	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Archived
October 1, 2017 – December 31, 2017	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Archived
April 1, 2017 – June 30, 2017	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Archived
January 1, 2017 – March 31, 2017	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Archived
October 1, 2016 – December 31, 2016	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Archived
January 1, 2016 – March 31, 2016	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Archived
January 1, 2015 – March 31, 2015	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Archived
July 1, 2014 – September 30, 2014	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Archived
October 1, 2013 – December 31, 2013	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Archived
April 1, 2013 – June 30, 2013	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Archived
June 1, 2012 – June 30, 2012	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
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
October 1, 1981 – September 30, 1982	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

December 17, 2024State Formal Notice of Violation issued3 linked violations
August 19, 2022State Violation/Reminder Notice2 linked violations
March 24, 2022State Violation/Reminder Notice5 linked violations
February 25, 2021State Violation/Reminder Notice16 linked violations
May 28, 2019State Violation/Reminder Notice4 linked violations
March 17, 2017State Violation/Reminder Notice6 linked violations
October 28, 2013State Violation/Reminder Notice6 linked violations
October 24, 2012State Administrative/Compliance Order without penalty issued7 linked violations
July 27, 2012State Administrative/Compliance Order without penalty issued6 linked violations
May 30, 2008State Administrative/Compliance Order without penalty issued4 linked violations
September 30, 2001State Compliance achieved6 linked violations
August 20, 1997State Compliance achieved12 linked violations

Common questions

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

CASTANEDA, SHARON

530-832-5225

PORTOLA, CA 96122