2021 Nov - Dec
November 2021: The Blue-Green Algae predictions from summer since seeing bright green (living) algae growing again in the lake, are still holding; November, like October, had reoccurring and persistent instances of large toxic blooms in multiple lake areas. The water clarity remains poor, and consistently turbid with a greenish tint and visible BGA particulate within the water column.
November 2, 2021 -- The City Lake Contractor (Solitude Lake Management) sprayed, from a boat, on the surface of the lake, a 4th application, of an unknown volume of "GreenClean 5.0" peroxide treatment. After this 4th treatment, the lake water does not appear the same as after the first treatment results in March 2020, where maximum clarity and elimination of detectable Microcystin toxin were achieved for a short time period. Currently, after the 4th treatment, toxic blue-green algae (BGA) is still present in large visible quantities. Therefore, algal toxins and their health risks to humans are still present and the long-term exposures of the Microcystin and BMAA in the air/water are compounding.
The City continues to pay for and implement ineffective algaecide. Why? Throughout 2021, again, other methods for lake remediation to proactively prevent these toxic blooms (and improve overall water quality), like improving the current design of the aeration system (via additional bottom aerators in lake lobes) have not been attempted by the City and its contractor, despite multiple requests by citizens since 2020.
December 2021: Overall, blue-green algae blooms remain. Potentially cloud cover (very foggy weather) has affected growth speed of BGA due to lessened sunlight exposure. Also, since the peroxide treatment this month was done when there was no major visible bloom present on surface of water, it could have affected BGA growth as well. Overall, the water clarity remains poor, and consistently turbid with a greenish tint and visible BGA particulate within the water column. The City still has not implemented any improvements to the bottom aeration system running, such as adding additional diffuser heads for increased circulation.
December 2, 2021 -- The City Lake Contractor (Solitude Lake Management) removed the 4 nano-bubble generator units on land, (1 located at the Southern Entrance Lobe, and 3 on the berm). The long lengths of PVC pipe used for these units was left in the water, and extensions of same pipe, were left all along the berm's land too, acting now as pure plastic trash in the environment.
December 8, 2021 -- The City Lake Contractor (Solitude Lake Management) sprayed, from multiple boats, on the surface of the lake, a 5th application, of an unknown volume of "GreenClean 5.0" peroxide treatment. After this 5th treatment, the lake water does not appear the same as after the first treatment results in March 2020, where maximum clarity and elimination of detectable Microcystin toxin were achieved for a short time period. Currently, after the 5th treatment, toxic blue-green algae (BGA) is still present in large visible quantities. Therefore, algal toxins and their health risks to humans are still present and the long-term exposures of the Microcystin and BMAA in the air/water are compounding.
To view photos, scroll through this page or click the anchor links, below, to jump to that month's section:
November 2021 Photos
Nov 1 2021
Southeast Lobe
Blue-green algae build-up
Nov 2 2021
Southeast Lobe
Blue-green algae build-up
(Noxious odors detected in these visible amounts of BGA)
Peroxide Algaecide Spraying Day
Nov 3 2021
Southeast Lobe
Blue-green algae build-up
Day 1 after Peroxide Algaecide
Nov 3 2021
Southern (Entrance) Lobe
Blue-green algae build-up
Day 1 after Peroxide Algaecide
Nov 4 2021
Southern (Entrance) Lobe
Blue-green algae build-up
Nov 8 2021
Southern (Entrance) Lobe
Blue-green algae remains trapped into cattails
Nov 8 2021
Southeast Lobe
Blue-green algae build-up
Nov 9 2021 ~7.57am
Southeast Lobe
Blue-green algae
Day 7 after Peroxide Algaecide
Nov 9 2021 ~10.49am
Southeast Lobe
Blue-green algae build-up, condensed due to wind, hours later
Day 7 after Peroxide Algaecide
Nov 9 2021
Southeast Lobe
Close-Up of Blue-green algae trapped into cattails, yellow circled area; red rectangles demarcate dried toxic BGA residue stuck on cattails' reeds
Nov 10 2021
Southern (Entrance) Lobe
Large blue-green algae build-up
Nov 10 2021
Southern (Entrance) Lobe
Large blue-green algae build-up
yellow line estimates distance of bloom out from shore, red circled area define thicker scum build-up (higher toxin levels)
Nov 10 2021
Southeast Lobe
Blue-green algae build-up
Nov 11 2021
Southern (Entrance) Lobe
Blue-green algae thriving and trapped in floating cattail islands and debris
Nov 11 2021
Northwest Lobe
Large blue-green algae build-up
and scums present
Nov 12 2021
Southern (Entrance) Lobe
Blue-green algae
yellow line estimates distance of bloom out from shore
Nov 12 2021
Southeast Lobe
Blue-green algae
Nov 14 2021
Southeast Lobe
Close-Up of Blue-green algae trapped into cattails again, yellow circled area
Nov 14 2021
Southeast Lobe
Blue-green algae medium streaking
Nov 16 2021
Southeast Lobe
Blue-green algae build-up
Day 14 after Peroxide Algaecide
Nov 16 2021
Southern (Entrance) Lobe
Blue-green algae build-up
Day 14 after Peroxide Algaecide
Nov 17 2021
Southern (Entrance) Lobe
Large blue-green algae build-up, yellow line estimates distance of bloom out from shore
Nov 18 2021
Southern (Entrance) Lobe
Large blue-green algae build-up, yellow line estimates distance of bloom out from shore
Nov 18 2021
Southeast Lobe
Large blue-green algae build-up, yellow line estimates distance of bloom out from shore
Nov 19 2021
Southern (Entrance) Lobe
Blue-green algae pushed towards shore due to wind, submerged under surface
Nov 19 2021
Southeast Lobe
Blue-green algae
Nov 22 2021
Southeast Lobe
Blue-Green pushed to shore due to wind, submerged under surface, yellow line demarcated build-up shape
Nov 22 2021
Southern (Entrance) Lobe
Blue-green algae
Nov 25 2021
Southern (Entrance) Lobe
Blue-green algae build-up
Nov 26 2021
Southern (Entrance) Lobe
Blue-green algae streaking, yellow line estimates distance of bloom out from shore; Thicker scums stuck in weeds and cattails near shore
Day 24 after Peroxide Algaecide
Nov 26 2021
Southeast Lobe
Large blue-green algae build-up in lake lobe
Day 24 after Peroxide Algaecide
Nov 27 2021
Southeast Lobe
Blue-green algae build-up
Nov 28 2021
Southeast Lobe
Blue-green algae build-up
Nov 28 2021
Southern (Entrance) Lobe
Blue-green algae build-up, thicker scum at shore, with likely dying sacrificial layers of BGA (brownish streaks)
Nov 29 2021
Southern (Entrance) Lobe
Blue-green algae build-up
Nov 29 2021
Southeast Lobe
Blue-green algae build-up
Nov 30 2021
Southern (Entrance) Lobe
Blue-green algae build-up
Day 28 after Peroxide Algaecide
Nov 30 2021
Southeast Lobe
Blue-green algae build-up
Day 28 after Peroxide Algaecide
December 2021 Photos
Dec 1 2021
Southern (Entrance) Lobe
Blue-green algae build-up, thicker scum at shore, with likely dying sacrificial layers of BGA (brownish streaks)
Dec 2 2021
Southern (Entrance) Lobe
Blue-green algae build-up, thicker scum at shore, with likely dying sacrificial layers of BGA (grayish streaks)
Dec 3 2021
Southern (Entrance) Lobe
Blue-green algae build-up
Note: Very Foggy
Dec 3 2021
Southeast Lobe
Blue-green algae build-up
Dec 4 2021
Southeast Lobe
Blue-green algae build-up
Dec 4 2021
Southern (Entrance) Lobe
Blue-green algae build-up, thicker scum at shore, with likely dying sacrificial layers of BGA (brownish streaks)
Dec 5 2021
Southern (Entrance) Lobe
Blue-green algae thriving and trapped in floating cattail islands and debris
Dec 6 2021
Southern (Entrance) Lobe
Blue-green algae thriving and trapped in floating cattail islands and debris
Dec 7 2021
Southern (Entrance) Lobe
Blue-green algae build-up
Dec 12 2021
Southern (Entrance) Lobe
turbid, particulates within water column
Day 4 after Peroxide Algaecide
Dec 12 2021
Southeast Lobe
turbid, particulates within water column
Day 4 after Peroxide Algaecide
Dec 13 2021
Southeast Lobe
Blue-green algae streaking
Day 5 after Peroxide Algaecide
Dec 13 2021
Southern (Entrance) Lobe
Blue-green algae streaking / small build-up
Day 5 after Peroxide Algaecide
Dec 14 2021
Southern (Entrance) Lobe
Blue-green Algae
Day 6 after Peroxide Algaecide
Dec 15 2021
Southeast Lobe
Day 7 after Peroxide Algaecide
Dec 15 2021
Southern (Entrance) Lobe
Blue-green algae streaking / small build-up
Day 7 after Peroxide Algaecide
Dec 16 2021
Southern (Entrance) Lobe
Blue-green algae thriving and trapped in floating cattail islands and debris
turbid water
Day 8 after Peroxide Algaecide
Dec 16 2021
Southeast Lobe
Day 8 after Peroxide Algaecide
Dec 20 2021
Southern (Entrance) Lobe
Blue-green algae build-up
Day 12 after Peroxide Algaecide
Dec 20 2021
Southeast Lobe
Blue-green algae build-up
Day 12 after Peroxide Algaecide
Dec 21 2021
Southeast Lobe
Blue-Green pushed to shore due to wind, submerged under surface,
cattail island in water removed
Dec 21 2021
Southern (Entrance) Lobe
Blue-Green pushed to shore due to wind, submerged under surface
Day 13 after Peroxide Algaecide
Dec 22 2021
Southern (Entrance) Lobe
Blue-green algae thriving and trapped in floating cattail islands and debris
Dec 22 2021
Southeast Lobe
Blue-green algae build-up
Dec 23 2021
Southern (Entrance) Lobe
Blue-green algae build-up
Day 15 after Peroxide Algaecide
Dec 23 2021
Southeast Lobe
Blue-green algae build-up
Day 15 after Peroxide Algaecide
Dec 24 2021
Southeast Lobe
Blue-green algae build-up
Day 16 after Peroxide Algaecide
Dec 24 2021
Southern (Entrance) Lobe
Blue-green algae build-up
Day 16 after Peroxide Algaecide
Dec 24 2021
Southern (Entrance) Lobe
Blue-green algae thicker scum areas, marked by red arrows
Day 16 after Peroxide Algaecide
Dec 25 2021
Southern (Entrance) Lobe
Blue-green algae thriving and trapped in floating cattail islands and debris
Day 17 after Peroxide Algaecide
Dec 25 2021
Southern (Entrance) Lobe
Blue-green algae trapped in cattails,
with strong odors, marked by red circle and red arrows
Day 17 after Peroxide Algaecide
Dec 26 2021
Southern (Entrance) Lobe
Blue-green algae build-up
Day 18 after Peroxide Algaecide
Dec 26 2021
Southeast Lobe
Blue-green algae build-up
Day 18 after Peroxide Algaecide
Dec 27 2021
Southern (Entrance) Lobe
Blue-green algae thriving and trapped in floating cattail islands and debris,
marked by yellow circles
Day 19 after Peroxide Algaecide
Dec 27 2021
Southeast Lobe
Blue-green algae streaking, extent of build-up marked by yellow line
Blue-green algae trapped in cattails, thicker scum marked by red arrow
Day 19 after Peroxide Algaecide
Dec 28 2021
Southern (Entrance) Lobe
Blue-green algae thriving and trapped in floating cattail islands and debris, marked by red arrow
dried toxic blue-green algae residue, on floating cattail island, red circle
Day 20 after Peroxide Algaecide
Dec 28 2021
Southeast Lobe
Blue-green algae streaking
Day 20 after Peroxide Algaecide
Dec 29 2021
Southern (Entrance) Lobe
Blue-green algae present,
slight amount at shore, yellow circle
turbid brownish water,
is "prorocentrum minimum" present??
Day 21 after Peroxide Algaecide
Dec 29 2021
Southeast Lobe
turbid water, particulate in water column
Day 21 after Peroxide Algaecide
Dec 29 2021
Southeast Lobe
Blue-green algae trapped in cattails still, with odors,
marked by red arrows
Day 21 after Peroxide Algaecide