Clear Lake at Nassau Bay, Upper Bay Road

Houston, Texas

Managed by Galveston Bay Foundation

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Clear Lake at Nassau Bay Upper Road Site for Galveston Bay Foundation. Began monthly sampling January 21, 2020.

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Water Quality

No data available
Current Status
This status is based on the latest sample, taken on February 25th, 2020. Galveston Bay Foundation updates the status of this beach as soon as test results become available. These results were posted to Swim Guide on March 2nd, 2020 at 12:20 PM.

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Monitoring Frequency

Source Information

Galveston Bay Foundation’s citizen scientist volunteers monitor water quality at sites throughout Galveston Bay. These volunteers sample once a month for basic water chemistry (pH, DO, temp, Salinity, Transparency) and Enterococcus.

There are three levels of advisories in Texas. The lowest level occurs when enterococcus densities are below 35 cfu (colony forming units)/100 ml. A medium-level advisory occurs when enterococcus densities are between 35 cfu/100 ml and 104 cfu/100 ml, and a high-level advisory is issued, with swimming not recommended, when the enterococcus density is greater than 104 cfu/100 ml. The public is notified of all advisory levels on the Internet, but signs are posted on the beach and in Swim Guide for high-level advisories.

A beach is marked Green when single sample results contain fewer than 104 cfu/100 ml of water.

A beach is marked Red when single sample results contain more than 104 cfu/100 ml of water.

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

Water Quality Graph

Other Beaches Near This One

Beach	Location	Water Quality
Clear Lake at Clear Lake Park Pier Seabrook, Texas	Seabrook, Texas	Historical Status
Clear Lake at Nassau Bay Yacht Club Houston, Texas	Houston, Texas	Current Status
Clear Lake at Sea Cove Court Houston, Texas	Houston, Texas	Current Status
Clear Lake at Taylor Lake Entrance and NASA Road El Lago, Texas	El Lago, Texas	Current Status

	Green means the beach’s most recent test results met relevant water quality standards.

	Red means the beach’s most recent test results failed to meet water quality standards.

	Grey means water quality information for the beach is too old (more than 7 days old) to be considered current, or that info is unavailable, or unreliable.

	Green means the beach passed water quality tests 95% of the time or more.

	Yellow means the beach passed water quality tests 60-95% of the time.

	Red means the beach failed water quality tests 40% of the time or more.

	This means that this site has been issued a Blue Flag status for the current swimming season. This status does not indicate current water quality.

	Red means the water at the site has water quality issues or there is an emergency.

	Grey means there is no current water quality information, the beach is under construction, there has been an event that has rendered water quality information unreliable or unavailable.