Honeoye Valley Association

The Gronwall's visual BGA Update for Monday August 12th.

  Monday morning (8/12), The Gleotrichia (blue-green algae) bloom that has been occurring for the last 6 weeks was still visible in the water column.  No surface algae scum was seen.  We did observe two isolated near shore Gleotrichia blooms that we reported to the DEC.

  Water clarity dropped to 8.2 feet and surface water temperature dropped to 75.2 F.  This was probably due to the rain storms we got last week and the cooler weather we have been having recently.  The lake continues to be stratified.

   

Honeoye Lake Data
Mon. 8/5 Mon. 8/12 Weekly Change
Surface Water Temperature (F): 78.4 75.2 -3.2
Water Clarity (Ft): 13.8 8.2 -5.6
Lake Level (Ft): 803.01 803.15 0.14
Lake Level Relative to Weir (Ft): -0.49 -0.35 0.14


In Lake Samplng at Deepest Point (9 meter) 2019
Date 1-Jul-19 8-Jul-19 15-Jul-19 23-Jul-19 29-Jul-19 5-Aug-19 12-Aug-19
Day of Week Mon Mon Mon Tue Mon Mon Mon
Secchi  (m) 3.10 2.90 4.80 3.00 4.00 4.20 2.50
Secchi (feet) 10.17 9.51 15.75 9.84 13.12 13.78 8.20
Surface
Temperature (C) 24.3 25.5 25.5 26.3 25.6 25.8 24.0
Temperature (F) 75.7 77.9 77.9 79.3 78.1 78.4 75.2
Lake Level (Feet) 803.71 803.55 803.32 803.22 803.11 803.01 803.15




The Gronwall's visual BGA Update for Monday August 5th.

  Monday morning (8/5), The Gleotrichia (blue-green algae) bloom that has been occurring for the last month was less intense than the previous week, but still visible in the water column.  No surface scum was seen.

  Water clarity was 13.8 feet.  This is about double what the water clarity normally is in late July.  The lake has remained stratified since late June keeping the phosphorus released from the bottom sediments during this time trapped below the thermocline and unavailable to fuel a late summer blue-green algae bloom.


Honeoye Lake Data
Mon. 7/29 Mon. 8/5 Weekly Change
Surface Water Temperature (F): 78.1 78.4 0.3
Water Clarity (Ft): 13.1 13.8 0.7
Lake Level (Ft): 803.11 803.01 -0.1
Lake Level Relative to Weir (Ft): -0.39 -0.49 -0.1


In Lake Samplng at Deepest Point (9 meter) 2019
In Lake Samplng at Deepest Point (9 meter) 2019
Date 17-Jun-19 24-Jun-19 1-Jul-19 8-Jul-19 15-Jul-19 23-Jul-19 29-Jul-19 5-Aug-19
Day of Week Mon Mon Mon Mon Mon Tue Mon Mon
Secchi  (m) 4.50 2.20 3.10 2.90 4.80 3.00 4.00 4.20
Secchi (feet) 14.76 7.22 10.17 9.51 15.75 9.84 13.12 13.78
Surface
Temperature (C) 21.2 21.7 24.3 25.5 25.5 26.3 25.6 25.8
Temperature (F) 70.2 71.1 75.7 77.9 77.9 79.3 78.1 78.4
Lake Level (Feet) 803.33 803.90 803.71 803.55 803.32 803.22 803.11 803.01



The Gronwall's visual BGA Update for Monday July 29th.

  Monday morning (7/29), The Gleotrichia (blue-green algae) bloom that has been occurring for the last month is still visible in the water column.  No surface scum was seen.  Gleotrichia is an early summer species of blue-green algae that gets its nutrients directly from the bottom sediments during the winter and spring.

  Water clarity was 13.1 feet.  This is about double what the water clarity normally is in late July.  This is probably because the normal late summer blue-green algae species that are more dense haven't started to bloom yet. 

   Always use your own visual assessment before making contact with the lake water at this time of year as the blue-green algae situation can change daily if not hourly.  Please regularly check the new DEC HABs alert map for more detailed updates on Honeoye Lake HABs alerts:

https://nysdec.maps.arcgis.com/apps/webappviewer/index.html?id=ae91142c812a4ab997ba739ed9723e6e  



Honeoye Lake Data

Tue. 7/23 Mon. 7/29 Weekly Change
Surface Water Temperature (F): 79.3 78.1 -1.2
Water Clarity (Ft): 9.8 13.1 3.3
Lake Level (Ft): 803.22 803.11 -0.11
Lake Level Relative to Weir (Ft): -0.28 -0.39

-0.11



In Lake Samplng at Deepest Point (9 meter) 2019
Date 24-May-19 31-May-19 3-Jun-19 10-Jun-19 17-Jun-19 24-Jun-19 1-Jul-19 8-Jul-19 15-Jul-19 23-Jul-19 29-Jul-19
Day of Week Fri Fri Mon Mon Mon Mon Mon Mon Mon Tue Mon
Secchi  (m) 4.50 4.50 4.00 3.50 4.50 2.20 3.10 2.90 4.80 3.00 4.00
Secchi (feet) 14.76 14.76 13.12 11.48 14.76 7.22 10.17 9.51 15.75 9.84 13.12
Surface
Temperature (C) 16.6 19.3 18.2 19.6 21.2 21.7 24.3 25.5 25.5 26.3 25.6
Temperature (F) 61.9 66.7 64.8 67.3 70.2 71.1 75.7 77.9 77.9 79.3 78.1
Lake Level (Feet) 803.74 803.65 803.53 803.35 803.33 803.90 803.71 803.55 803.32 803.22 803.11


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