LARKSPUR, CA · Tuolumne County
CASCADE ESTATES Water System
Consumer Confidence Report status
CASCADE ESTATES 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 CASCADE ESTATES.
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)
- CA5500104
- System type
- Community Water System
- Population served
- 316
- Service connections
- 113
- Ownership
- privately owned
- Water source
- groundwater (wells)
CASCADE ESTATES is one of 3,951 community water systems in California in the 500 or fewer people size category, serving 316 people from groundwater.
As of August 1, 2026, its federal record holds 15 entries between 1980 and 2011, all of which EPA lists as closed. Nothing has been added since 2011.
Of the 15, 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 Miscellaneous Other Rules, the Radionuclides and Revised Rad Rule, and the Consumer Confidence Rule.
Violation history
Consumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2011 – October 12, 2012
ResolvedNotification, Public
—No contaminant on record
September 1, 1983 – September 30, 1983
ArchivedNotification, Public
—No contaminant on record
August 1, 1983 – August 31, 1983
ArchivedNotification, Public
—No contaminant on record
July 1, 1983 – July 31, 1983
ArchivedNotification, Public
—No contaminant on record
June 1, 1983 – June 30, 1983
ArchivedNotification, Public
—No contaminant on record
May 1, 1983 – May 31, 1983
ArchivedNotification, Public
—No contaminant on record
April 1, 1983 – April 30, 1983
ArchivedNotification, Public
—No contaminant on record
March 1, 1983 – March 31, 1983
ArchivedNotification, Public
—No contaminant on record
February 1, 1983 – February 28, 1983
ArchivedNotification, Public
—No contaminant on record
January 1, 1983 – January 31, 1983
ArchivedNotification, Public
—No contaminant on record
December 1, 1982 – December 31, 1982
ArchivedNotification, Public
—No contaminant on record
November 1, 1982 – November 30, 1982
ArchivedNotification, Public
—No contaminant on record
October 1, 1982 – October 31, 1982
ArchivedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
October 1, 1981 – September 30, 1982
ArchivedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
October 30, 1980 – October 29, 1981
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 |
|---|---|---|---|---|
| July 1, 2011 – October 12, 2012 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| September 1, 1983 – September 30, 1983 | Notification, Public | — | — | Archived |
| August 1, 1983 – August 31, 1983 | Notification, Public | — | — | Archived |
| July 1, 1983 – July 31, 1983 | Notification, Public | — | — | Archived |
| June 1, 1983 – June 30, 1983 | Notification, Public | — | — | Archived |
| May 1, 1983 – May 31, 1983 | Notification, Public | — | — | Archived |
| April 1, 1983 – April 30, 1983 | Notification, Public | — | — | Archived |
| March 1, 1983 – March 31, 1983 | Notification, Public | — | — | Archived |
| February 1, 1983 – February 28, 1983 | Notification, Public | — | — | Archived |
| January 1, 1983 – January 31, 1983 | Notification, Public | — | — | Archived |
| 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 |
| October 30, 1980 – October 29, 1981 | 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
- September 15, 2025State Compliance achieved4 linked violations
- February 22, 2016State Compliance achieved4 linked violations
Common questions
Is CASCADE ESTATES required to publish a Consumer Confidence Report?
- Yes. CASCADE ESTATES 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 CASCADE ESTATES’s next Consumer Confidence Report due?
- CASCADE ESTATES’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does CASCADE ESTATES have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for CASCADE ESTATES.
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
HOON, PHIL
415-927-9013
LARKSPUR, CA 94939