Water Resources Protection Program
Presentations on the Cyanotoxin Monitoring Program:
Cyanobacteria Impacts to Tribal Water Uses
CLEAR LAKE CYANOTOXIN ISSUES
The Environmental Protection Department (Big Valley EPA) researches, plans, funds, and implements projects that protect the Tribe’s environment. Return to Big Valley EPA's page.
The Big Valley Band of Pomo Indians began a cyanobacteria and cyanotoxin monitoring program on Clear Lake in 2014 with another shoreline Tribe, Elem Indian Colony. Together the two Tribes' Environmental Departments have collaborated with equipment, resources and time to test the water for toxins produced by cyanobacteria (AKA “Blue Green Algae”). These toxins are called cyanotoxins and can be neurotoxins, liver toxins and skin toxins. The Tribes began this program because despite the fact that Clear Lake had thick, noxious blooms covering its surface every summer since 2009, there was no regular and active monitoring of these blooms for the cyanotoxins that the California Office of Environmental Health Hazard Assessment (OEHHA) had reviewed and suggested Action Levels for in 2012, and for which the World Health Organization provided guidance regarding exposure in the 1990’s. OEHHA's Report
CURRENT RESULTS - 2020 SAMPLING RESULTS/LOCATIONS
LAB UPDATE ON CLEAR LAKE CYANOTOXIN LEVELS:
At our last sampling event on 3/10/20, 8 sites were lab analyzed for Microcystin producing genes, and 3 for Anatoxin-a producing genes. One site (Jago Bay - JB) had a moderate detect of MICROCYSTIN producing genes and the remaining sites were NON DETECT for toxin producing genes. After a resample for actual toxins on March 16, results came back NON DETECT. *WHAT ARE TOXIN PRODUCING GENES? *WHY ARE YOU SAMPLING FOR TOXIN PRODUCING GENES AND NOT TOXINS? On the Water Resources Program section on this web page, please see document entitled "Screening for Toxins Using qPCR on Clear Lake"
The most recent testing MICROCYSTIN producing genes results:
The most recent testing ANATOXIN-A results:
KEYS02 NS (NOT SAMPLED)
Winter sampling on Clear Lake is monthly with fewer sites. Our next sampling date is in early April, 2020.
Sarah Ryan, Environmental Director (707)263-3924 x132 and (707)349-4040 cell
John Gichuki, Assistant Envt'l Director (707)263-3924 x133
Elias Rodriguez, Recycling Center Manager
Pedro Miguel, Environmental Technician
Katherine Schrade, Environmental Technician
Michael Nevarez, Solid Waste Technician
Mark McCloud, Jr, Solid Waste Technician