Baker Beach @ Lobos Creek

San Francisco, California
Managed by The Swim Guide

Lobos Creek is at the southern end of Baker Beach. It is the last free-flowing stream in San Francisco. Nearly half of the creek's annual flow is diverted from the creek to provide drinking water to the Presidio area. "Lobos" is the spanish word for "wolf".

WATER QUALITY
  • Passed water quality tests 60-95% 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:   
CURRENT WEATHER
12°C
Chance of heavy rain
MONITORING FREQUENCY

is sampled daily from 1 January to 31 December

SOURCE INFORMATION

San Francisco Shoreline Beach Monitoring Program is a cooperative effort between Public Health Utilities Commission and the San Francisco Department of Public Health. Samples are collected year round, on a weekly basis and tested for 3 different bacterial indicators. Levels of total coliform, E.coli and enterococcus are analyzed by the quanti-tray method.

Results are posted 18 - 24 hours after the samples are received by the laboratory. Health officials proactively notify the public and post and de-post beaches based upon preliminary results. Signs are posted at the beach in accordance with California standards and when a Combined Sewer System discharge occurs. Daily testing will occur and postings will remain until the discharge ceases and all bacteria levels drop below the following standards.

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

A beach is marked Green when the levels of all three types of indicator bacteria are less than the standards stated.

A beach is marked Red when the levels of 1 or more types of indicator bacteria are above the standards stated.

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

Swim Guide checks daily for the latest results. Swimmers are encouraged to stay out of the water during, and up to 48 hours after heavy rainfall.

WATER QUALITY GRAPH

Baker Beach @ Lobos Creek

San Francisco, California
Managed by The Swim Guide

WATER QUALITY
  • Passed water quality tests 60-95% 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:   
CURRENT WEATHER
12°C
Chance of heavy rain

Lobos Creek is at the southern end of Baker Beach. It is the last free-flowing stream in San Francisco. Nearly half of the creek's annual flow is diverted from the creek to provide drinking water to the Presidio area. "Lobos" is the spanish word for "wolf".

MONITORING FREQUENCY

is sampled daily from 1 January to 31 December

SOURCE INFORMATION

San Francisco Shoreline Beach Monitoring Program is a cooperative effort between Public Health Utilities Commission and the San Francisco Department of Public Health. Samples are collected year round, on a weekly basis and tested for 3 different bacterial indicators. Levels of total coliform, E.coli and enterococcus are analyzed by the quanti-tray method.

Results are posted 18 - 24 hours after the samples are received by the laboratory. Health officials proactively notify the public and post and de-post beaches based upon preliminary results. Signs are posted at the beach in accordance with California standards and when a Combined Sewer System discharge occurs. Daily testing will occur and postings will remain until the discharge ceases and all bacteria levels drop below the following standards.

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

A beach is marked Green when the levels of all three types of indicator bacteria are less than the standards stated.

A beach is marked Red when the levels of 1 or more types of indicator bacteria are above the standards stated.

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

Swim Guide checks daily for the latest results. Swimmers are encouraged to stay out of the water during, and up to 48 hours after heavy rainfall.

WATER QUALITY GRAPH



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