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9/14/2024
WT Staff
 Got water questions? Give us a call at 877-52-WATER (877-529-2837), or email us at info@watertoday.ca
September 14, 2024 1230 pm PDT
HAB Danger advisories back on for Discovery Bay, Big Break Regional Shoreline
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 California 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.
Streamflow Situation from the USGS network of streamflow gauges in California
Clear and sunny again today with a high of 92F in the Central Valley, no hazardous weather in the forecast from San Joaquin - Hanford local forecast office. San Diego local forecast office reports cloudy weather today with patchy drizzle expected tonight. USGS network of streamflow monitors continue to show the rivers and creeks above normal to much above seasonal normal, in the top 8 watershed regions interior and coastal. Region 9 Colorado River watershed remains in severe drought through Imperial, Riverside and central San Bernardino County with extreme low flow volumes recorded on New River near Westmoreland and Alamo River at .
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