SANTA ROSA, CA · Sonoma County
SONOMA COUNTY CSA 41-FREESTONE Water System
Consumer Confidence Report status
SONOMA COUNTY CSA 41-FREESTONE 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 SONOMA COUNTY CSA 41-FREESTONE.
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)
- CA4900549
- System type
- Community Water System
- Population served
- 290
- Service connections
- 26
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
SONOMA COUNTY CSA 41-FREESTONE is one of 3,951 community water systems in California in the 500 or fewer people size category, serving 290 people from surface water.
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 Stage 1 Disinfectants and Disinfection Byproducts Rule, and the Radionuclides and Revised Rad Rule.
Violation history
Maximum Contaminant Level Violation, Average
Health-basedTotal Haloacetic Acids (HAA5)
January 1, 2011 – March 31, 2011
ResolvedMaximum Contaminant Level Violation, Average
Health-basedTTHM
January 1, 2011 – March 31, 2011
ResolvedMaximum Contaminant Level Violation, Average
Health-basedTotal Haloacetic Acids (HAA5)
October 1, 2010 – December 31, 2010
ResolvedNotification, Public
—No contaminant on record
September 1, 1984 – September 30, 1984
ArchivedNotification, Public
—No contaminant on record
August 1, 1984 – August 31, 1984
ArchivedNotification, Public
—No contaminant on record
July 1, 1984 – July 31, 1984
ArchivedNotification, Public
—No contaminant on record
June 1, 1984 – June 30, 1984
ArchivedNotification, Public
—No contaminant on record
May 1, 1983 – May 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 |
|---|---|---|---|---|
| January 1, 2011 – March 31, 2011 | Maximum Contaminant Level Violation, Average | Total Haloacetic Acids (HAA5) | Health-based | Resolved |
| January 1, 2011 – March 31, 2011 | Maximum Contaminant Level Violation, Average | TTHM | Health-based | Resolved |
| October 1, 2010 – December 31, 2010 | Maximum Contaminant Level Violation, Average | Total Haloacetic Acids (HAA5) | Health-based | Resolved |
| September 1, 1984 – September 30, 1984 | Notification, Public | — | — | Archived |
| August 1, 1984 – August 31, 1984 | Notification, Public | — | — | Archived |
| July 1, 1984 – July 31, 1984 | Notification, Public | — | — | Archived |
| June 1, 1984 – June 30, 1984 | Notification, Public | — | — | Archived |
| May 1, 1983 – May 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
- January 1, 2016State Compliance achieved16 linked violations
Common questions
Is SONOMA COUNTY CSA 41-FREESTONE required to publish a Consumer Confidence Report?
- Yes. SONOMA COUNTY CSA 41-FREESTONE 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 SONOMA COUNTY CSA 41-FREESTONE’s next Consumer Confidence Report due?
- SONOMA COUNTY CSA 41-FREESTONE’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does SONOMA COUNTY CSA 41-FREESTONE have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for SONOMA COUNTY CSA 41-FREESTONE.
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
HOEVERTSZ, JOHANNES
707-565-3580
SANTA ROSA, CA 95403