SAN MARTIN, CA · Santa Clara County
SAN MARTIN COUNTY WATER DISTRICT Water System
Consumer Confidence Report status
SAN MARTIN COUNTY WATER DISTRICT 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 SAN MARTIN COUNTY WATER DISTRICT.
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)
- CA4300542
- System type
- Community Water System
- Population served
- 627
- Service connections
- 190
- Ownership
- local government
- Water source
- groundwater (wells)
SAN MARTIN COUNTY WATER DISTRICT is one of 728 community water systems in California in the 501 to 3,300 people size category, serving 627 people from groundwater.
As of August 1, 2026, its federal record holds 14 entries between 1980 and 2019, all of which EPA lists as closed. Nothing has been added since 2019.
Of the 14, 6 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 Lead and Copper Rule, and synthetic organic chemicals.
Violation history
Follow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
October 1, 2019 – October 20, 2020
ResolvedInitial Tap Sampling for Pb and Cu
—Lead and Copper Rule
July 1, 1999 – August 3, 2000
ResolvedMonitoring, Regular
—LASSO
January 1, 1999 – December 31, 1999
ResolvedMonitoring, Regular
—LASSO
January 1, 1996 – December 31, 1996
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, 1984 – May 31, 1984
ArchivedNotification, Public
—No contaminant on record
July 1, 1983 – July 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
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 |
|---|---|---|---|---|
| October 1, 2019 – October 20, 2020 | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | — | Resolved |
| July 1, 1999 – August 3, 2000 | Initial Tap Sampling for Pb and Cu | Lead and Copper Rule | — | Resolved |
| January 1, 1999 – December 31, 1999 | Monitoring, Regular | LASSO | — | Resolved |
| January 1, 1996 – December 31, 1996 | Monitoring, Regular | LASSO | — | 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, 1984 – May 31, 1984 | Notification, Public | — | — | Archived |
| July 1, 1983 – July 31, 1983 | Notification, Public | — | — | Archived |
| April 1, 1983 – April 30, 1983 | Notification, Public | — | — | Archived |
| March 1, 1983 – March 31, 1983 | 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
- May 15, 2001State Public Notification requested8 linked violations
- August 3, 2000State Compliance achieved9 linked violations
- March 22, 2000State Public Notification received1 linked violation
- March 22, 2000State Compliance achieved1 linked violation
- July 19, 1993State Administrative/Compliance Order without penalty issued5 linked violations
Common questions
Is SAN MARTIN COUNTY WATER DISTRICT required to publish a Consumer Confidence Report?
- Yes. SAN MARTIN COUNTY WATER DISTRICT 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 SAN MARTIN COUNTY WATER DISTRICT’s next Consumer Confidence Report due?
- SAN MARTIN COUNTY WATER DISTRICT’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does SAN MARTIN COUNTY WATER DISTRICT have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for SAN MARTIN COUNTY WATER DISTRICT.
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
FOREST, PETER
408-683-4101
SAN MARTIN, CA 95046-0120