Pescadero State Beach

Pescadero, California
Managed by The Swim Guide

Photo by: Dylan Neild

Photo by Charlie Day

Getting its name from the spanish word for "fishing place", Pescadero State Beach is
located 15 miles south of Half Moon Bay, California. It features a mile-long shoreline with
many rocky cliffs, tide pools and fishing spots. The Pescadero Marsh Natural Preserve,
located across the highway from the beach, is home to a diverse range of wildlife and is
a popular destination among bird watchers. There are many activities available at
Pescadero State Beach including swimming, surfing, fishing, hiking and nature exploring.
There are three metered parking lots available along the western side of Highway 1, each
with its own restroom and beach access. Free guided walking tours are offered on the
first and third Sunday of every month, weather permitting, from the Central Parking lot.
Dogs and fires are prohibited at all times.

WATER QUALITY
  • Passed water quality tests at least 95% of the time
  • Historical Status
  • This status is based on the latest sample, taken on . The Swim Guide 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:   
MONITORING FREQUENCY

Pescadero State Beach is sampled weekly from January 1st to December 31st

SOURCE INFORMATION

San Mateo County conducts weekly sampling at over 43 ocean and fresh water sites throughout the year. Samples are collected on Mondays and analyzed by the San Mateo County Public Health Laboratory for the levels of three indicator bacteria. Results are posted to their website within 48 hours. Swim Guide checks for the latest results daily.

The standards for indicator bacteria are as follows:
Single sample maximum
Total Coliform > 10,000 MPN (Most Probable Number) / 100 ml of water
Enterococcus > 104 MPN / 100 ml
E.coli > 400 MPN / 100 ml

Geometric Mean (5 samples collected over a 30 day period)
Total Coliform > 1,000 MPN / 100 ml of water
Enterococcus > 35 MPN / 100 ml
E.coli > 200 MPN / 100 ml

A beach is marked Green when bacteria levels for a single day and geometric mean are below the standards mentioned.

A beach is marked Red when bacteria levels for a single day or the geometric mean are above the standards mentioned.

A beach is marked Grey when there is no current or reliable monitoring information available.

Please contact Greg Smith of County Environmental Health by email GJSmith@smcgov.org or phone (650) 372-6200 if you are interested in becoming a volunteer to help collect water samples at your favorite beach.

If you think you’ve contracted an water related illness please send us a pollution report, see your doctor and contact County Environmental Health Services at (650) 372-6200 to make a report. They will need your name, the dates and areas you were swimming, symptoms and contact information for your or your health care provider.

WATER QUALITY GRAPH

Pescadero State Beach

Pescadero, California
Managed by The Swim Guide

WATER QUALITY
  • Passed water quality tests at least 95% of the time
  • Historical Status
  • This status is based on the latest sample, taken on . The Swim Guide 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:   
Photo by: Dylan Neild

Photo by Charlie Day

Getting its name from the spanish word for "fishing place", Pescadero State Beach is
located 15 miles south of Half Moon Bay, California. It features a mile-long shoreline with
many rocky cliffs, tide pools and fishing spots. The Pescadero Marsh Natural Preserve,
located across the highway from the beach, is home to a diverse range of wildlife and is
a popular destination among bird watchers. There are many activities available at
Pescadero State Beach including swimming, surfing, fishing, hiking and nature exploring.
There are three metered parking lots available along the western side of Highway 1, each
with its own restroom and beach access. Free guided walking tours are offered on the
first and third Sunday of every month, weather permitting, from the Central Parking lot.
Dogs and fires are prohibited at all times.

MONITORING FREQUENCY

Pescadero State Beach is sampled weekly from January 1st to December 31st

SOURCE INFORMATION

San Mateo County conducts weekly sampling at over 43 ocean and fresh water sites throughout the year. Samples are collected on Mondays and analyzed by the San Mateo County Public Health Laboratory for the levels of three indicator bacteria. Results are posted to their website within 48 hours. Swim Guide checks for the latest results daily.

The standards for indicator bacteria are as follows:
Single sample maximum
Total Coliform > 10,000 MPN (Most Probable Number) / 100 ml of water
Enterococcus > 104 MPN / 100 ml
E.coli > 400 MPN / 100 ml

Geometric Mean (5 samples collected over a 30 day period)
Total Coliform > 1,000 MPN / 100 ml of water
Enterococcus > 35 MPN / 100 ml
E.coli > 200 MPN / 100 ml

A beach is marked Green when bacteria levels for a single day and geometric mean are below the standards mentioned.

A beach is marked Red when bacteria levels for a single day or the geometric mean are above the standards mentioned.

A beach is marked Grey when there is no current or reliable monitoring information available.

Please contact Greg Smith of County Environmental Health by email GJSmith@smcgov.org or phone (650) 372-6200 if you are interested in becoming a volunteer to help collect water samples at your favorite beach.

If you think you’ve contracted an water related illness please send us a pollution report, see your doctor and contact County Environmental Health Services at (650) 372-6200 to make a report. They will need your name, the dates and areas you were swimming, symptoms and contact information for your or your health care provider.

WATER QUALITY GRAPH



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