Water Quality Test Results
Ocean Monitoring
Humboldt County is funded by the U.S. Environmental Protection Agency Beach Environmental Assessment and Coastal Health Act (BEACH Act) to monitor for the presence of bacteria in ocean water areas. Water samples are taken near creek mouths that deliver storm water into the ocean.
Current Results
The following beach is posted: Luffenholtz Beach/Creek.
| Locations | Resample | Sample Date |
Total Coliform |
Exceeds Limit |
E.Coli | Exceeds Limit |
Enterococcus | Exceeds Limit |
|---|---|---|---|---|---|---|---|---|
| North Mad River Mouth | No | 9/19/2023 | 110 | No | 31 | No | 63 | No |
| Clam Beach/Strawberry Creek | No | 9/19/2023 | 131 | No | 10 | No | <10 | No |
| Moonstone Beach/Little River | No | 9/19/2023 | 98 | No | 10 | No | <10 | No |
| Luffenholtz Beach/Creek | No | 9/19/2023 | 2,723 | No | 373 | Yes | 158 | Yes |
| Trinidad State Park/Mill Creek | No | 9/19/2023 | 74 | No | 10 | No | 10 | No |
Previous results are available for download (XLS).
Legend
All units are in are in MPN/100 ml. MPN = "most probable number".
State water quality standards for bacteria in recreational waters are not to exceed:
- Total coliform = 10,000 MPN/100ml*
- E. coli (a fecal coliform) = 400 MPN/100 ml
- Enterococcus (E. faecalis) = 104 MPN/100 ml
*Fecal coliform to total coliform ratio exceeds 0.1, and the total coliform count exceeds 1,000 MPN
NOWCAST Predictions
NOWCAST Predictive Modeling now includes Luffenholtz Beach. Visit beachreportcard.org and enter "Luffenholtz" into the "search for your favorite beach" form field.
For more information, visit beachreportcard.org.