MI WUK VILLAGE, CA · Tuolumne County
MI WUK HEIGHTS MWC Water System
Consumer Confidence Report status
MI WUK HEIGHTS MWC 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 MI WUK HEIGHTS MWC.
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)
- CA5500060
- System type
- Community Water System
- Population served
- 445
- Service connections
- 159
- Ownership
- privately owned
- Water source
- groundwater (wells)
MI WUK HEIGHTS MWC is one of 3,951 community water systems in California in the 500 or fewer people size category, serving 445 people from groundwater.
As of August 1, 2026, its federal record holds 4 entries between 1981 and 2002, all of which EPA lists as closed. Nothing has been added since 2002.
Of the 4, 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 Miscellaneous Other Rules, the Total Coliform Rules, and the Radionuclides and Revised Rad Rule.
Violation history
Maximum Contaminant Level Violation, Acute (TCR)
Health-basedColiform (TCR)
August 1, 2002 – August 31, 2002
ResolvedNotification, Public
—No contaminant on record
September 1, 1983 – September 30, 1983
ArchivedNotification, Public
—No contaminant on record
October 1, 1982 – October 31, 1982
ArchivedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
October 1, 1981 – September 30, 1982
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 |
|---|---|---|---|---|
| August 1, 2002 – August 31, 2002 | Maximum Contaminant Level Violation, Acute (TCR) | Coliform (TCR) | Health-based | Resolved |
| September 1, 1983 – September 30, 1983 | Notification, Public | — | — | Archived |
| October 1, 1982 – October 31, 1982 | Notification, Public | — | — | Archived |
| October 1, 1981 – September 30, 1982 | 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
No enforcement actions on record for this system.
Common questions
Is MI WUK HEIGHTS MWC required to publish a Consumer Confidence Report?
- Yes. MI WUK HEIGHTS MWC 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 MI WUK HEIGHTS MWC’s next Consumer Confidence Report due?
- MI WUK HEIGHTS MWC’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does MI WUK HEIGHTS MWC have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for MI WUK HEIGHTS MWC.
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
OLIVER, GREGORY
209-586-2523
MI WUK VILLAGE, CA 95346