Honeoye Valley Association
In Lake Samplng at Deepest Point (9 meter) 2018
Date 16-May-18 22-May-18 28-May-18 4-Jun-18 11-Jun-18 18-Jun-18 25-Jun-18 2-Jul-18 9-Jul-18 16-Jul-18
Day of Week Wed Tue Mon Mon Mon Mon Mon Mon Mon Mon
Secchi  (m) 2.50 2.70 3.80 3.40 2.40 3.00 1.80 2.80 3.80 2.40
Secchi (feet) 8.20 8.86 12.47 11.15 7.87 9.84 5.91 9.19 12.47 7.87
Surface
Temperature (C) 19.4 18.5 21.1 20.8 20.9 23.7 22.5 26.3 26.0 27.5
Temperature (F) 66.9 65.3 70.0 69.5 69.6 74.7 72.5 79.4 78.8 81.6
Lake Level (Feet) 803.35 803.28 803.19 803.22 803.15 803.08 803.10 803.21 803.11 803.00

The Gronwall's visual BGA Update for Monday July 16th

 

Monday morning (7/16), Many of our surveillance/monitoring sites showed

signs of a Gleotrichia bloom, but a few of our sites were almost completely

algae free. Sandy Bottom Park Swimming beach has been closed due to

concerns about this bloom. Water clarity has decreased by ~4.6 feet from

last Monday 7/9. Water clarity today was 7.9 feet. Surface water

temperature was 81.6 F.

 

This blue-green algae species gets its nutrients directly from the

shallow water bottom sediments. Shallow areas that do not have good water

circulation could collect Gleotrichia in more dense quantities.


Mon. 7/9 Mon. 7/16 Weekly Change
Surface Water Temperature (F): 78.8 81.6 2.8
Water Clarity (Ft): 12.5 7.9 -4.6
Lake Level (Ft): 803.11 803.00 -0.11
Lake Level Relative to Weir (Ft): -0.39 -0.50 -0.11



The Gronwall's visual BGA Update for Thursday July 12th

 

Thursday afternoon (7/12), The Gleotrichia in the water column became

more dense in some small isolated near shore areas today. Today's very

calm wind and bright sunny sky brought it up to the water surface. This

blue-green algae species gets its nutrients directly from the shallow water

bottom sediment.

 

Other near shore areas had very clear almost algae free conditions.



The Gronwall's visual BGA Update for Monday July 10:

 

 Monday morning (7/10), All of our surveillance/monitoring sites showed

no signs of a BGA bloom.

Only very light to light algae in the water column. Water clarity has

increased by 3.3 feet from last

Monday 7/2. Today it was 12.5 feet. Surface water temperature decreased by

0.6 F to 78.8 F.

 

We are observing light Gleotrichia in the water column. This blue-green

algae species gets its

nutrients directly from the shallow water bottom sediments. Shallow areas

that do not have good

water circulation could collect Gleotrichia in more dense quantities.

 

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. The

DEC will report on their

assessment of our blue-green algae bloom situation for this week late Friday

afternoon on their BGA

Mon. 7/2 Mon. 7/9 Weekly Change
Surface Water Temperature (F): 79.4 78.8 -0.6
Water Clarity (Ft): 9.2 12.5 3.3
Lake Level (Ft): 803.21 803.11 -0.1
Lake Level Relative to Weir (Ft): -0.29 -0.39 -0.1




The Gronwall's visual BGA Update for Monday July 2nd:


    Monday morning (7/2), all of our surveillance/monitoring sites showed no
> signs of a BGA bloom.  Only very light to light algae in the water column.
> Water clarity has increased by 3.3 feet from last Monday 6/25.  Today it was
> 9.2 feet.  Surface water temperature increased by ~7 F to 79.4 F.
>
>   The weather forecast for this week continues to be for high temperatures
> in the 90's F.  These high temperatures could trigger a rapid change in lake
> conditions. 


Mon. 6/25 Mon. 7/2 Weekly Change
Surface Water Temperature (F): 72.5 79.4 6.9
Water Clarity (Ft): 5.9 9.2 3.3
Lake Level (Ft): 803.10 803.21 0.11
Lake Level Relative to Weir (Ft): -0.40 -0.29 0.11

   Monday morning (6/25), all of our surveillance/monitoring sites showed

no signs of a BGA bloom. Only very light algae in the water column.

However, our water clarity reading has declined 3.9' from last Monday.

Water clarity today was 5.9'.

 

The weather forecast for this coming weekend is for high temperatures in

the 90's F. These high temperatures could trigger a rapid change in lake

conditions.


Mon. 6/18 Mon. 6/25 Weekly Change
Surface Water Temperature (F): 74.7 72.5 -2.2
Water Clarity (Ft): 9.8 5.9 -3.9
Lake Level (Ft): 803.08 803.10 0.02
Lake Level Relative to Weir (Ft): -0.42 -0.40 0.02



The Gronwall's visual BGA Update for Monday June 18th:


   Monday morning (6/18), Water clarity has increased about ~2 feet over

the last week. Water temperature has increased ~5 F over the last week.

All of our surveillance/monitoring sites showed no signs of a BGA bloom.

Water amazingly clear today like it is in mid-May.

 

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. The DEC will report on their assessment of our

blue-green algae bloom situation for this week late Friday afternoon on

their BGA alert web page.


Mon. 6/11 Mon. 6/18 Weekly Change
Surface Water Temperature (F): 69.6 74.7 5.1
Water Clarity (Ft): 7.9 9.8 1.9
Lake Level (Ft): 803.15 803.08 -0.07
Lake Level Relative to Weir (Ft): -0.35 -0.42 -0.07



The Gronwall's visual BGA Update for Monday June 11th:

 

Monday morning (6/11), Water clarity has declined about 3.3 feet over

the last week. Currently 7.9 feet. Most of our surveillance/monitoring

sites showed no signs of a BGA bloom. A few of our sites had very light to

light algae visible in the water column. This was a significant improvement

from last week.

 

Working with Cornell University we determined that we had a very strong

(20-25 MPH) south wind on May 30 & 31. The lake was stratified and anoxic

on May 28th. Cornell's thermistor temperature data every meter from the

surface to the bottom confirmed that we had a thermocline disturbance

(underwater waves/rocking thermocline) on May 30 & 31. We feel that this

was the source of nutrients that fueled last week BGA bloom.


Mon. 6/4 Mon. 6/11 Weekly Change
Surface Water Temperature (F): 69.5 69.6 0.1
Water Clarity (Ft): 11.2 7.9 -3.3
Lake Level (Ft): 803.22 803.15 -0.07
Lake Level Relative to Weir (Ft): -0.28 -0.35 -0.07





The Gronwall's visual BGA Update for Monday June 4th:

 

Monday morning (6/4), water clarity was still very good at 11.2 feet.

Most of our surveillance/monitoring sites showed no signs of a blue-green

algae bloom yet. However, two sites had sparse small green algae

dots/clumps and one near shore site had a moderate amount of green

filamentous algae visible in the water column.

 

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. The DEC will report on their assessment of our

blue-green algae bloom situation for this week late Friday afternoon on

their BGA alert web page.


Honeoye Lake Data
Mon. 5/28 Mon. 6/4 Weekly Change
Surface Water Temperature (F): 70 69.5 -0.5
Water Clarity (Ft): 12.5 11.2 -1.3
Lake Level (Ft): 803.19 803.22 0.03
Lake Level Relative to Weir (Ft): -0.31 -0.28 0.03



The Gronwall's visual BGA Update for Monday May 28th:

 

Monday morning (5/28), we saw no visible blue-green algae in the

surface water at all of our monitoring sites. The water clarity was an

exceptional 12.5 feet.

 

We have had a couple reports of blue-green algae blooms in the last few

days that were actually duck weed, a small aquatic plant, that floats on the

 

surface and sort of looks like a blue-green algae bloom.

 

We have started collecting at least 3 water samples a week for blue-green

algae testing by SUNY ESF. If any of these samples test above the NYSDEC

blue-green algae bloom criteria they will report that on Friday.

 

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.


Tue. 5/22 Mon. 5/28 Weekly Change
Surface Water Temperature (F): 65.3 70 4.7
Water Clarity (Ft): 8.9 12.5 3.6
Lake Level (Ft): 803.28 803.19 -0.09
Lake Level Relative to Weir (Ft): -0.22 -0.31 -0.09


© Honeoye Valley Association
Powered by Wild Apricot Membership Software