100 H Street, Suite 100 Eureka, CA 95501 (707) 445-6215 (707) 441-5699 FAX Division of Environmental Health
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Humboldt County Beach Monitoring Data
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| For all samples below, units are in are in MPN/100 ml. MPN = "most probable number" | |||||||
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Location
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Date
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Total Coliform
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Exceeds Std.
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Fecal Coliform
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Exceeds Std.
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Enterococcus
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Exceeds Std.
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| Clam Beach Co. Park | 5/22/2012 | 1664 | No | 31 | No | 10 | No |
| Luffenholtz Creek | 5/22/2012 | 144 | No | <10 | No | 10 | No |
| Mad River Mouth / North | 5/22/2012 | 20 | No | 10 | No | <10 | No |
| Moonstone Beach | 5/22/2012 | 1210 | No | 96 | No | 10 | No |
| Trinidad State Park / Mill Creek | 5/22/2012 | 309 | No | 31 | No | 20 | No |
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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 |
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