STOCKTON, CA · San Joaquin County
TWIN OAKS MOBILE PARK Water System
Consumer Confidence Report status
TWIN OAKS MOBILE PARK 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 TWIN OAKS MOBILE PARK.
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)
- CA3901074
- System type
- Community Water System
- Population served
- 238
- Service connections
- 85
- Ownership
- privately owned
- Water source
- groundwater (wells)
TWIN OAKS MOBILE PARK is one of 3,951 community water systems in California in the 500 or fewer people size category, serving 238 people from groundwater.
As of August 1, 2026, its federal record holds 1 entry in 1981, all of which EPA lists as closed. Nothing has been added since 1981.
All 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 Radionuclides and Revised Rad Rule.
Violation history
Monitoring, Regular
—Gross Alpha, Excl. Radon and U
October 1, 1981 – September 30, 1982
Archived
Archived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| October 1, 1981 – September 30, 1982 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Archived |
Archived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- November 14, 2014State Violation/Reminder Notice1 linked violation
- November 14, 2014State Compliance achieved1 linked violation
- August 8, 2013State Compliance achieved3 linked violations
- July 1, 2012State Violation/Reminder Notice1 linked violation
- July 1, 2012State Compliance achieved1 linked violation
- July 1, 2009State Compliance achieved1 linked violation
- August 1, 2008State Public Notification requested2 linked violations
- July 1, 2005State Compliance achieved1 linked violation
- July 1, 2001State Public Notification requested4 linked violations
Common questions
Is TWIN OAKS MOBILE PARK required to publish a Consumer Confidence Report?
- Yes. TWIN OAKS MOBILE PARK 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 TWIN OAKS MOBILE PARK’s next Consumer Confidence Report due?
- TWIN OAKS MOBILE PARK’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does TWIN OAKS MOBILE PARK have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for TWIN OAKS MOBILE PARK.
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
JOHNSTON, SHERRIE
209-932-8747
STOCKTON, CA 95219