Bob's Beach at Stevenson, WA

Stevenson, Washington

The grassy lawn and paved steps into the river make Bob's Beach a charming riverside location for sharing a picnic or taking a dip in the Columbia River. Windsurfers use Bob's Beach as a launch site, so expect to see colorful sails on east wind days. The free parking, flush toilets, changing rooms and picnic tables make this a comfortable place to enjoy the Columbia River, and a short walk takes you to downtown Stevenson, WA where you can find ample shopping and dining.

WATER QUALITY
  • No data available
  • Current Status
  • This status is based on the latest sample, taken on . Columbia Riverkeeper 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
6°C
Chance of heavy rain
MONITORING FREQUENCY

Bob's Beach at Stevenson, WA is sampled monthly from June 10th to September 20th

SOURCE INFORMATION

The Washington state water quality standard provides that E.coli levels must not exceed a geometric mean value of 100 colonies /100 mL, with not more than 10 percent of all samples (or any single sample when less than ten sample points exist) obtained for calculating the geometric mean value exceeding 200 colonies /100 mL.

The EPA recommended standard provides that no single sample shall exceed 235 E.coli colonies/100mL and the geometric mean of 5 samples within 30 days shall not exceed 126 E.coli colonies/100mL. The Swim Guide will utilize the EPA standard for Washington beaches.
There is currently very limited water quality monitoring of Washington's inland swim beaches. The federal Beach Act does not cover freshwater or riverine beaches, and the State of Washington does not monitor swim beaches or recreation sites on the Columbia. Columbia Riverkeeper monitors recreation sites in the Columbia River Gorge through their Volunteer Water Quality Monitoring Program. Most sites are sampled monthly and high priority sites are sampled weekly from June-September.
The Swim Guide's safety ratings are based solely on E.coli levels. While E.coli concentration is a useful indicator of fecal contamination, there are many other potential sources of pollution that are not reflected in the Swim Guide. These include other bacteria, heavy metals, pharmaceuticals, and pesticides that may harm aquatic life. On the Columbia and other salmon rivers, high temperatures threaten fish that need cold water. If you are interested in getting involved or learning more about the Columbia River, visit www.columbiariverkeeper.org.

WATER QUALITY GRAPH

Bob's Beach at Stevenson, WA

Stevenson, Washington

WATER QUALITY
  • No data available
  • Current Status
  • This status is based on the latest sample, taken on . Columbia Riverkeeper 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
6°C
Chance of heavy rain

The grassy lawn and paved steps into the river make Bob's Beach a charming riverside location for sharing a picnic or taking a dip in the Columbia River. Windsurfers use Bob's Beach as a launch site, so expect to see colorful sails on east wind days. The free parking, flush toilets, changing rooms and picnic tables make this a comfortable place to enjoy the Columbia River, and a short walk takes you to downtown Stevenson, WA where you can find ample shopping and dining.

MONITORING FREQUENCY

Bob's Beach at Stevenson, WA is sampled monthly from June 10th to September 20th

SOURCE INFORMATION

The Washington state water quality standard provides that E.coli levels must not exceed a geometric mean value of 100 colonies /100 mL, with not more than 10 percent of all samples (or any single sample when less than ten sample points exist) obtained for calculating the geometric mean value exceeding 200 colonies /100 mL.

The EPA recommended standard provides that no single sample shall exceed 235 E.coli colonies/100mL and the geometric mean of 5 samples within 30 days shall not exceed 126 E.coli colonies/100mL. The Swim Guide will utilize the EPA standard for Washington beaches.
There is currently very limited water quality monitoring of Washington's inland swim beaches. The federal Beach Act does not cover freshwater or riverine beaches, and the State of Washington does not monitor swim beaches or recreation sites on the Columbia. Columbia Riverkeeper monitors recreation sites in the Columbia River Gorge through their Volunteer Water Quality Monitoring Program. Most sites are sampled monthly and high priority sites are sampled weekly from June-September.
The Swim Guide's safety ratings are based solely on E.coli levels. While E.coli concentration is a useful indicator of fecal contamination, there are many other potential sources of pollution that are not reflected in the Swim Guide. These include other bacteria, heavy metals, pharmaceuticals, and pesticides that may harm aquatic life. On the Columbia and other salmon rivers, high temperatures threaten fish that need cold water. If you are interested in getting involved or learning more about the Columbia River, visit www.columbiariverkeeper.org.

WATER QUALITY GRAPH



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