SANTA MARIA, CA · Santa Barbara County
SISQUOC Water System
Consumer Confidence Report status
SISQUOC 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 SISQUOC.
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)
- CA4200560
- System type
- Community Water System
- Population served
- 135
- Service connections
- 77
- Ownership
- privately owned
- Water source
- groundwater (wells)
SISQUOC is one of 3,951 community water systems in California in the 500 or fewer people size category, serving 135 people from groundwater.
As of August 1, 2026, its federal record holds 4 entries between 1981 and 1982, all of which EPA lists as closed. Nothing has been added since 1982.
Of the 4, 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 inorganic chemicals and the Radionuclides and Revised Rad Rule.
Violation history
Maximum Contaminant Level Violation, Single Sample
Health-basedNitrate
December 1, 1982 – December 31, 1982
ArchivedMaximum Contaminant Level Violation, Single Sample
Health-basedNitrate
October 1, 1982 – October 31, 1982
ArchivedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
October 1, 1981 – September 30, 1982
ArchivedMonitoring, Check/Repeat/Confirmation
—Nitrate
June 1, 1981 – May 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 | Maximum Contaminant Level Violation, Single Sample | Nitrate | Health-based | Archived |
| October 1, 1982 – October 31, 1982 | Maximum Contaminant Level Violation, Single Sample | Nitrate | Health-based | Archived |
| October 1, 1981 – September 30, 1982 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Archived |
| June 1, 1981 – May 31, 1982 | Monitoring, Check/Repeat/Confirmation | Nitrate | — | Archived |
Archived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
No enforcement actions on record for this system.
Common questions
Is SISQUOC required to publish a Consumer Confidence Report?
- Yes. SISQUOC 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 SISQUOC’s next Consumer Confidence Report due?
- SISQUOC’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does SISQUOC have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for SISQUOC.
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
CHAN, SHAZ
805-349-7404
SANTA MARIA, CA 93455