Mad River Beach County Park

Arcata, California

A great beach for picnics, beachcombing and fishing, Mad River County Park Beach features an open sandy beach and trails through the dunes to the mouth of the Mad River.  Perfect for a long walk on the beach or hike around in the secret world of dunes, which offer great shelter on windy days.   A mile or two inland is a boat ramp into the Mad River.  The river here is tidally influenced, but is deep enough for paddling canoes and kayaks even at low tide.

WATER QUALITY
  • No data available
  • Current Status
  • This status is based on the latest sample, taken on . Humboldt Baykeeper updates the status of this beach as soon as test results become available. These results were posted to Swim Guide on at
For water quality icon legend, click:   
CURRENT WEATHER
11°C
Cloudy
MONITORING FREQUENCY

Mad River Beach County Park is not sampled

SOURCE INFORMATION

Beach water is tested weekly from April to October by the Humboldt County Environmental Monitoring Division. Results are posted online, and Humboldt Baykeeper updates the beach status information in Swim Guide as it is made available.

In California, maximum levels for bacteria are established for recreational waters. Single sample maximum levels are 235 E. coli/100 ml; 61 Enterococcus /100 ml; and 400 fecal coliform/100 ml; and 10,000 total coliform /100 ml. In waters designated for contact recreation, the median fecal coliform concentration based on a minimum of not less than five samples for any 30-day period shall not exceed 50/100 ml, nor shall more than ten percent of total samples during any 30-day period exceed 400/100 ml. Monitoring frequency varies across jurisdictions.

WATER QUALITY GRAPH

Mad River Beach County Park

Arcata, California

WATER QUALITY
  • No data available
  • Current Status
  • This status is based on the latest sample, taken on . Humboldt Baykeeper updates the status of this beach as soon as test results become available. These results were posted to Swim Guide on at
For water quality icon legend, click:   
CURRENT WEATHER
11°C
Cloudy

A great beach for picnics, beachcombing and fishing, Mad River County Park Beach features an open sandy beach and trails through the dunes to the mouth of the Mad River.  Perfect for a long walk on the beach or hike around in the secret world of dunes, which offer great shelter on windy days.   A mile or two inland is a boat ramp into the Mad River.  The river here is tidally influenced, but is deep enough for paddling canoes and kayaks even at low tide.

MONITORING FREQUENCY

Mad River Beach County Park is not sampled

SOURCE INFORMATION

Beach water is tested weekly from April to October by the Humboldt County Environmental Monitoring Division. Results are posted online, and Humboldt Baykeeper updates the beach status information in Swim Guide as it is made available.

In California, maximum levels for bacteria are established for recreational waters. Single sample maximum levels are 235 E. coli/100 ml; 61 Enterococcus /100 ml; and 400 fecal coliform/100 ml; and 10,000 total coliform /100 ml. In waters designated for contact recreation, the median fecal coliform concentration based on a minimum of not less than five samples for any 30-day period shall not exceed 50/100 ml, nor shall more than ten percent of total samples during any 30-day period exceed 400/100 ml. Monitoring frequency varies across jurisdictions.

WATER QUALITY GRAPH



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