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January 20, 2021 -- The City Lake Contractor (Solitude Lake Management) had a single boat on the lake, where supposedly a "spot-treat" copper algaecide application was applied (blue colored sprayed liquid) on the lake over a course of a few hours-- it was the product described from the September 29, 2020 dated U.S. mailed letter to residents. This product was supposed to be utilized in the months prior to treat the ongoing blooms on a regular basis, but was never implemented until this date.
Based on the photos, blooms were not hindered, due to this treatment. Other methods/analysis continue to not be pursued by the City and Solitude Lake Management without any stated explanation, despite years of requests.
February 3, 2021 -- The City Lake Contractor (Solitude Lake Management) sprayed, from multiple boats onto the surface of the lake, a 3rd application, of an unknown volume of "GreenClean 5.0" -- the product described from the January 28, 2021 dated U.S. mailed letter to residents.
After this 3rd 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 3rd treatment, blue-green algae (BGA) is still present in large visible quantities . The DEP confirmed toxins still are present during their February follow-up samples taken by boat. The DEP did not sample the shoreline areas where BGA build-ups were still present.
Jan 01 2021
Northwest Lobe
Blue-Green Algae
Strong Odors
Jan 03 2021
Northwest Lobe
Blue-Green Algae Trapped
Strong Odor in Cattails
Jan 03 2021
Southeast Lobe
Blue-Green Algae Build-Up
Jan 04 2021
Southern (Entrance) Lobe
Blue-Green Algae
Jan 05 2021
Southern (Entrance) Lobe
Blue-Green Algae Build-Up
Jan 05 2021
Southeast Lobe
Large amount Blue-Green Algae in Lobe
Jan 06 2021
Southeast Lobe
Blue-Green Algae - Thicker Lumps
Jan 07 2021
Southern (Entrance) Lobe
Blue-Green Algae Trapped in Cattails and their debris
Jan 08 2021
Southeast Lobe
Blue-Green Algae Streaking
Jan 10 2021
Southeast Lobe
Blue-Green Algae Build-Up
Jan 11 2021
Southern (Entrance) Lobe
Close-up illustrating the 1/2" thickness of floating Blue-Green Algae scum mat
Jan 12 2021
Northwest Lobe
Blue-Green Algae Trapped Still
Strong Odor in Cattails
Jan 12 2021
Southeast Lobe
Blue-Green Algae Build-Up
Jan 13 2021
Southern (Entrance) Lobe
Blue-Green Algae Build-Up
Jan 14 2021
Southern (Entrance) Lobe
Large amount Blue-Green Algae in Lobe
Jan 14 2021
Southeast Lobe
Large amount Blue-Green Algae in Lobe
Jan 14 2021
Northwest Lobe
Large amount Blue-Green Algae in Lobe
Jan 15 2021
Southern (Entrance) Lobe
Blue-Green Algae Trapped in Cattails and their debris
Jan 17 2021
Southern (Entrance) Lobe
Blue-Green Algae Build-Up
Jan 17 2021
Northwest Lobe
Large amount Blue-Green Algae in Lobe
Strong Odors from across street
Jan 18 2021
Northwest Lobe
Large amount Blue-Green Algae in Lobe
Strong Odors from across street
Jan 18 2021
Southern (Entrance) Lobe
Blue-Green Algae Build-Up
Jan 19 2021
Southern (Entrance) Lobe
Blue-Green Algae Build-Up
Moderate Odors
DEP Sampled: 610 ppb Microcystin Toxin
Jan 19 2021
Northwest Lobe
Blue-Green Algae in Lobe
DEP Sampled: 26 ppb Microcystin Toxin
Jan 19 2021
Southeast Lobe
Blue-Green Algae Build-Up
Jan 20 2021
Southern (Entrance) Lobe
Large Blue-Green Algae Build-Up in Lobe
Strong Odors
Before Copper Algaecide Treatment Applied
Jan 20 2021
Southeast Lobe
Blue-Green Algae Build-Up
Strong Odors
After Copper Algaecide Treatment Applied, approx 4 hours later
Jan 21 2021
Southern (Entrance) Lobe
Blue-Green Algae Build-Up
Day 1 after copper algacide application
Jan 21 2021
Southeast Lobe
Large Blue-Green Algae Build-Up in Lobe
Day 1 after copper algacide application
Jan 23 2021
Southeast Lobe
Blue-Green Algae Build-Up
Day 3 after copper algacide application
Jan 24 2021
Southern (Entrance) Lobe
Large amount Blue-Green Algae in Lobe
Day 4 after copper algacide application
Jan 24 2021
Northwest Lobe
Large amount Blue-Green Algae in Lobe
Day 4 after copper algacide application
Jan 26 2021
Southern (Entrance) Lobe
Blue-Green Algae Build-Up in Lobe
Day 6 after copper algacide application
Jan 29 2021
Southern (Entrance) Lobe
Blue-Green Algae Build-Up in Lobe
Day 9 after copper algacide application
Jan 29 2021
Southeast Lobe
Blue-Green Algae Build-Up
Day 9 after copper algacide application
Feb 3 2021
Southeast Lobe
Blue-Green Algae Build-Up
(due to wind direction)
Feb 3 2021
Southeast Lobe
Blue-Green Algae Present
Green turbid water
Peroxide treatment occurred today
Feb 4 2021
Southeast Lobe
BGA Present
Day 1 after peroxide treatment
Feb 4 2021
Southeast Lobe
BGA trapped and smelling in cattails
Day 1 after peroxide treatment
Feb 4 2021
Northwest Lobe
Large amount Blue-Green Algae in Lobe
Odor
Day 1 after peroxide treatment
Feb 7 2021
Southeast Lobe
BGA Build-Up
Day 4 after peroxide treatment
Feb 7 2021
Southern (Entrance) Lobe
BGA Present
Day 4 after peroxide treatment
Feb 8 2021
Southern (Entrance) Lobe
BGA Build-Up
Day 5 after peroxide treatment
Feb 10 2021
Southern (Entrance) Lobe
BGA trapped in cattails debris
Day 7 after peroxide treatment
Feb 11 2021
Southeast Lobe
BGA Streaking
Day 8 after peroxide treatment
Feb 12 2021
Southern (Entrance) Lobe
BGA trapped in cattail debris
Day 9 after peroxide treatment
Feb 12 2021
Northwest Lobe
Large amount BGA in Lobe
Odor
Day 9 after peroxide treatment
Feb 17 2021
Southeast Lobe
BGA Build-Up
Day 14 after peroxide treatment
Feb 23 2021
Southeast Lobe
BGA Build-Up
Day 20 after peroxide treatment
Feb 23 2021
Southern (Entrance) Lobe
BGA Present
Day 20 after peroxide treatment
Feb 24 2021
Southern (Entrance) Lobe
BGA Build-Up in Lobe
Day 21 after peroxide treatment
Feb 24 2021
Southeast Lobe
BGA Streaking
Day 21 after peroxide treatment
Feb 25 2021
Southeast Lobe
BGA Build-Up ~10:20 am
Feb 25 2021
Southeast Lobe
BGA Build-Up Compressed to shore due to winds. ~1:40 pm
Day 22 after peroxide treatment
Feb 25 2021
Southern (Entrance) Lobe
BGA Build-Up
Day 22 after peroxide treatment
Feb 28 2021
Southeast Lobe
Brown cloud of "muck"/organic decomposition/sediment being moved within water via winds; Odor at water resembles sulfur and organic sediment
Turbid Water: 8" secchi disk reading
Small amounts of BGA stuck within green filamentous algae around shoreline
Day 25 after peroxide treatment
Feb 28 2021
Northwest Lobe
Various Stages of Blue-Green Algae in Lobe
Brown-green scum at cattails' edge, green scum within cattails, bright green streaking in lobe
Odor
Day 25 after peroxide treatment
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