SAN BERNARDINO, CA · San Bernardino County
MUSCOY MWC NO. 1 Water System
Consumer Confidence Report status
MUSCOY MWC NO. 1 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 MUSCOY MWC NO. 1.
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)
- CA3610031
- System type
- Community Water System
- Population served
- 13,000
- Service connections
- 1,459
- Ownership
- privately owned
- Water source
- groundwater (wells)
MUSCOY MWC NO. 1 is one of 376 community water systems in California in the 10,001 to 100,000 people size category, serving 13,000 people from groundwater.
As of August 1, 2026, its federal record holds 3 entries between 2008 and 2024, all of which EPA lists as closed.
All 3 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 (RTCR)
—Revised Total Coliform Rule
March 1, 2024 – March 31, 2024
ResolvedMonitoring, Routine (RTCR)
—Revised Total Coliform Rule
January 1, 2024 – January 31, 2024
ResolvedMonitoring, Repeat Minor (TCR)
—Coliform (TCR)
May 1, 2008 – May 31, 2008
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| March 1, 2024 – March 31, 2024 | Monitoring, Routine (RTCR) | Revised Total Coliform Rule | — | Resolved |
| January 1, 2024 – January 31, 2024 | Monitoring, Routine (RTCR) | Revised Total Coliform Rule | — | Resolved |
| May 1, 2008 – May 31, 2008 | Monitoring, Repeat Minor (TCR) | Coliform (TCR) | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- May 31, 2024State Compliance achieved24 linked violations
- May 22, 2024State Administrative/Compliance Order without penalty issued30 linked violations
- September 16, 1993State Compliance achieved2 linked violations
Common questions
Is MUSCOY MWC NO. 1 required to publish a Consumer Confidence Report?
- Yes. MUSCOY MWC NO. 1 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 MUSCOY MWC NO. 1’s next Consumer Confidence Report due?
- MUSCOY MWC NO. 1’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does MUSCOY MWC NO. 1 have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for MUSCOY MWC NO. 1.
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
GARCIA, RUDY
909-887-2964
SAN BERNARDINO, CA 92407