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Water Test of:

5/26/24, 4:10 PM

Dissolved Oxygen Profile:
DOProfile20230910.png
Test Details:

Lake:

MIDAS #:

Town:

County:

Certified Monitor:

Certification #:

Wind:

Air Temperature:

Sky Conditions:

Scope Type:

Total Phosphorus:

YSI Meter:

Anasagunticook

3604

Hartford

Oxford

Deep

Wesley Barry

BA-3176

No wind

72.0 °F

Cloudy Bright

Slant glass & mask

11.6 ft.

Not measured

550A

Surface Readings:

Temperature:

71.2 °F

9.3 mg/l

Benthic Readings:

Sonar Depth:

45.6 ft.

Temperature:

47.5 °F

6.9 mg/l

Photo Gallery

Gloeotrichia density scale
Comments & Observations:

The water temperature is warming quickly this Memorial Day weekend on Lake Anasagunticook. Secchi depth was shallow at around 11.6 feet which is not unusual for the Spring and typically increases as the season goes on. Pollen was observed over the lake surface and had been churned into the water with the previous days winds. The thermocline (transition layer between warmer surface water and cooler deep water) has begun to form as you can see in the red line of the chart. The water temperature drops from the 70s to 50s and colder between 7 and 18 feet. The lake is now stratified and will remain this way until the fall. The dissolved oxygen in the deeper waters will be depleted over the season and has already started as seen in the blue line. Last year all the oxygen was depleted below the thermocline forming an anoxic environment in which fish and other fauna cannot survive. The bald eagles were observed watching over the lake along with several loons and an osprey.

References:
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