SAUSALITO, CA · Marin County
NPS GGNRA Water System
Consumer Confidence Report status
NPS GGNRA 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 NPS GGNRA.
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)
- CA2110350
- System type
- Community Water System
- Population served
- 18,447
- Service connections
- 224
- Ownership
- federal government
- Water source
- surface water (rivers, lakes, or reservoirs)
NPS GGNRA is one of 376 community water systems in California in the 10,001 to 100,000 people size category, serving 18,447 people from surface water.
As of August 1, 2026, its federal record holds 2 entries between 1999 and 2015, all of which EPA lists as closed. Nothing has been added since 2015.
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 Surface Water Treatment Rules and the Total Coliform Rules.
Violation history
Treatment Technique (SWTR and GWR)
Health-basedSurface Water Treatment Rule
September 1, 2015 – September 30, 2015
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
February 1, 1999 – February 28, 1999
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| September 1, 2015 – September 30, 2015 | Treatment Technique (SWTR and GWR) | Surface Water Treatment Rule | Health-based | Resolved |
| February 1, 1999 – February 28, 1999 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
No enforcement actions on record for this system.
Common questions
Is NPS GGNRA required to publish a Consumer Confidence Report?
- Yes. NPS GGNRA 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 NPS GGNRA’s next Consumer Confidence Report due?
- NPS GGNRA’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does NPS GGNRA have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for NPS GGNRA.
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
GEITNER, NICK
415-289-3101
SAUSALITO, CA 94965