Cyanobacteria Mitigation Program Application Event #3

Area of Interest (AOI)-Pamunkey, AOI-Beverly and AOI-Duckinhole

Application dates:  July 18-19, 2022

Post-application monitoring dates: July 21-22, 2022

Application Tracks - GPS tracks of application locations on July 18th, 2022

AOI-Pamunkey


Application Tracks - GPS tracks of application locations on July 18th, 2022

AOI-Beverly


Application Tracks - GPS tracks of application locations on July 19th, 2022

AOI-Duckinhole


Application Tracks - GPS tracks of application locations on July 19th, 2022

AOI-Beverly


Data Plots

LACA monitors the lake prior to, during, and after each application event.  LACA collects field parameters using a YSI ProDSS handheld instrument.  The primary field parameters monitored by LACA include water temperature, pH, specific conductivity, and dissolved oxygen.  We also collect water samples for analysis using LACA owned instruments.  These instruments provide data on the amount of chlorophyll (CHL) and phycocyanin (PC) in each sample.  Chlorophyll is a chemical pigment used by plants and cyanobacteria to produce energy through the process of photosynthesis.  Phycocyanin is a chemical pigment only found in cyanobacteria.  The instruments we use provide us data on the concentrations of each pigment in the samples we collect.  We use these data, along with the field parameters collected with our ProDSS handheld device, to give us indications of the concentrations of cyanobacteria in the water.  The images below provide the pH and dissolved oxygen (DO) field parameters data over a fie day period for each sampling site in AOI-Goldmine and AOI-Duckinhole.

Note that the images below are thumbnails - click on an image to bring it into the view and then click on it again to get to a full page image.  You can save a plot to your computer if you right-click on the image and select "Save Image As" .  

LACA continues to monitor each of the Areas of Interest on a weekly basis after the application event has been completed for cyanobacteria population growth and all of the data will be considered in our project report to be developed after the 2022 recreational season. 


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