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9/13/2024
WT Staff
 Got water questions? Give us a call at 877-52-WATER (877-529-2837), or email us at info@watertoday.ca
September 13, 2024 updated 144 pm PDT
New HABs Weekly Update
WT HAB Tracker from the satellite monitoring program of the NOAA National Centers for Coastal Ocean Science(NCCOS), Cyanobacteria Assessment Network (CyAN) and State sources where available
California
California Water Boards HAB Update of Friday, Sept 13 carries DANGER advisories on six recreational water bodies including Lago Los Osos, Contra Loma Reservoir, Lake Anza, Big Break Regional Shoreline, Discovery Bay and Clear Lake. Four Warning advisories are posted for Discovery Bay, Clear Lake and San Luis Reservoir with fifteen caution advisories posted on the beaches.
Be sure to heed the specific safety measures to avoid inhaling, ingesting or absorbing cyanotoxins, see the bluegreen tags on the map to the right for the water bodies impacted.
No discussion of HABs is complete without follow-up testing for cyanotoxins. The presence of bluegreen algae does not guarantee the presence of cyanotoxins, this can only be established through analysis of the water samples. As laboratory water testing is costly and time consuming, local health authorities rely on observation of HABs, including the assistance of Cyanobacteria Assessment Network (CyAN) to estimate concentration in order to decide when and where testing will be done. Given exposure to cyanotoxins above a maximum concentration is associated with permanent damage to vital organs in humans, the signs of which may not be felt until damage is done, it is prudent for local public health authorities to take a cautious approach when the toxicity status of a water body is unknown.
Big Valley Pomo Environmental Protection Agency has been leading the program of water monitoring for Clear Lake for more than a decade, including sampling and testing for cyanotoxins. Find the latest toxicity test results for Clear Lake here.
Check out the latest California HAB Tracker report, here, and see the bluegreen tags on the map to the right for more information. The new HAB updates for Sep 13 are in progress.
Streamflow Situation from the USGS network of streamflow gauges in California
Clear and sunny today with a high of 91F in the Central Valley, 93F the high expected tomorrow with no hazardous weather in sight. San Diego local forecast office offers cloudy and 73F weather today and more of the same tomorrow. USGS network of streamflow monitors record rivers and creeks above normal to much above seasonal normal through 8 of 9 watershed regions. Colorado River watershed region remains in severe drought from Imperial, Riverside and central San Bernardino County with low flow volumes for the New River and Alamo River.
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