YOSEMITE NP, CA · Mariposa County
YOSEMITE NPS-EL PORTAL Water System
Consumer Confidence Report status
YOSEMITE NPS-EL PORTAL 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 YOSEMITE NPS-EL PORTAL.
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)
- CA2210515
- System type
- Community Water System
- Population served
- 635
- Service connections
- 226
- Ownership
- federal government
- Water source
- groundwater (wells)
YOSEMITE NPS-EL PORTAL is one of 728 community water systems in California in the 501 to 3,300 people size category, serving 635 people from groundwater.
As of August 1, 2026, its federal record holds 2 entries between 1980 and 2007, all of which EPA lists as closed. Nothing has been added since 2007.
None of the 2 are monitoring or reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset; these involve water-quality, treatment, or public-notice findings instead. The record involves the Consumer Confidence Rule and the Miscellaneous Other Rules.
Violation history
Consumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2007 – November 9, 2007
ResolvedNotification, Public
—No contaminant on record
September 30, 1980 – October 29, 1980
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 |
|---|---|---|---|---|
| July 1, 2007 – November 9, 2007 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| September 30, 1980 – October 29, 1980 | Notification, Public | — | — | 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 YOSEMITE NPS-EL PORTAL required to publish a Consumer Confidence Report?
- Yes. YOSEMITE NPS-EL PORTAL 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 YOSEMITE NPS-EL PORTAL’s next Consumer Confidence Report due?
- YOSEMITE NPS-EL PORTAL’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does YOSEMITE NPS-EL PORTAL have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for YOSEMITE NPS-EL PORTAL.
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
TRUMM, MICHAEL
209-379-1055
YOSEMITE NP, CA 95389