BURLINGAME, CA · San Francisco County
TREASURE ISLAND Water System
Consumer Confidence Report status
TREASURE ISLAND 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 TREASURE ISLAND.
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)
- CA3810702
- System type
- Community Water System
- Population served
- 3,864
- Service connections
- 186
- Ownership
- federal government
- Water source
- surface water (rivers, lakes, or reservoirs)
TREASURE ISLAND is one of 278 community water systems in California in the 3,301 to 10,000 people size category, serving 3,864 people from surface water.
As of August 1, 2026, its federal record holds 2 entries between 1997 and 1998, all of which EPA lists as closed. Nothing has been added since 1998.
Of the 2, 1 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 Total Coliform Rules.
Violation history
Monitoring, Routine Minor (TCR)
—Coliform (TCR)
December 1, 1998 – December 31, 1998
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
April 1, 1997 – April 30, 1997
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| December 1, 1998 – December 31, 1998 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Resolved |
| April 1, 1997 – April 30, 1997 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- January 20, 1999State Violation/Reminder Notice13 linked violations
- May 20, 1997State Formal Notice of Violation issued17 linked violations
Common questions
Is TREASURE ISLAND required to publish a Consumer Confidence Report?
- Yes. TREASURE ISLAND 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 TREASURE ISLAND’s next Consumer Confidence Report due?
- TREASURE ISLAND’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does TREASURE ISLAND have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for TREASURE ISLAND.
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
DEGRACA, ANDREW
650-652-3100
BURLINGAME, CA 94010-2301