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 stormwater into the ocean. The ocean water monitoring
program began in February of 2003 when 4 Humboldt County beaches were originally
chosen for monitoring based on their relatively high visitor use and proximity
to creeks with summer flow. Since mid-November 2004, a 5th sampling site, at the
northern side of the Mad River mouth just above Mad River Beach (the
southernmost boundary of Clam Beach), has been monitored. In addition,
Environmental Health has sampled the creek mouth at Old Home Beach since April
of 2008 for the City of Trinidad.
Environmental Health monitors the 6 beaches weekly April through October.
Beginning in 2010, the beaches will no longer be monitered November through
After a significant rainfall, stormwater runoff draining into creeks and the ocean can contain high levels of bacteria and pollutants.
We currently test the water quality at:
Please avoid contact with ocean and creek water until at least 3 days after a heavy rainfall.
- Mad River Mouth North,
- Clam Beach near Strawberry Creek,
- Moonstone Beach near Little River,
- Luffenholtz Beach near Luffenholtz Creek, and
- Trinidad State Beach near Mill Creek.
- Old Home Beach near Trinidad Memorial Lighthouse.
When state standards for any of 3 types of indicator bacteria are exceeded at a beach, the area is posted with warning signs. The signs are removed when subsequent samples indicate the bacteria are no longer present.
For detailed information about this program, click on one of the links below:
Other related web sites:
For further information contact:
Harriet Hill, REHS
County of Humboldt Environmental Health Division
100 H Street, Suite 100
Eureka, CA 95501
707-445-6215 or 1-800-963-9241