Alexandra Wineland, Branch Director
Peggy Falk, Deputy Branch Director
Ann Lindsay, MD, Health Officer

100 H Street, Suite 100
Eureka, CA 95501
(707) 445-6215
(707) 441-5699 FAX

Environmental Health Division
Ocean Monitoring Program

NO HUMBOLDT COUNTY BEACHES ARE CURRENTLY POSTED.

For all samples below, units are in are in MPN/100 ml. MPN = "most probable number"
Clam Beach Co. Park 2/5/2008 20 No 10 No <10 No
Luffenholtz Creek 2/5/2008 158 No <10 No <10 No
Mill Creek / Trinidad 2/5/2008 187 No 10 No <10 No
Moonstone Beach 2/52008 63 No <10 No <10 No
North Mad River Mouth 2/5/2008 323 No <10 No <10 No
State Water Quality Standards for bacteria that are not to be exceeded in recreational waters are:

Total Coliform = 10,000 MPN/100ml

Fecal Coliform (as Escherichia coli) = 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



County Home | Health & Human Services Home | Administration | Mental Health | Public Health | Social Services