Jim, Pasted below are the dissolved oxygen measurements that Gavin King recorded yesterday on Spirit and North Spirit lakes. Oxygen levels are dropping below 1 mg/l in the lower half of the water column in Spirit Lake, so we recommend that your club should start that aerator system within the next 10 days. In North Spirit Lake oxygen concentration is still greater than 1 mg/l to a depth of 16-17 feet, sLake: Spirit (Little) Site 1 new County: Taylor Season: 2010-11
Aerator Started: Time: 1210 Date: 01/11/2011 Depth DO(mg/L) DO DO DO DO DO DO Surface x x 1' x 2 8.27 3 5.92 4 1.43 5 1.03 6 0.8 7 0.56 8 0.56 9 x 10 11 12 13 14 15 16 17 18 19 20
Obs: New site-Tom Wendt showed me deepest pt in lk. Bottom 8'6". GPS coord: N45.38028° W90.13854° Aerator not on-waiting for us to say so. >6trailers, 2shanties.
Winter Dissolved Oxygen Profiles Lake: N. Spirit Site 1 County: Taylor Season: 2010-11
Aerator Started: Time: 1400 Date: 01/11/2011 Depth DO(mg/L) DO DO DO DO DO DO Surface x x 1' x 2 8.22 3 x 4 x 5 7.23 6 x 7 x 8 x 9 3.83 10 x 11 x 12 x 13 2.08 14 x 15 x 16 x 17 1.17 18 x 19 x 20 x 21 0.81 22 0.79 x 30 35 40
Obs: Same site as last yr. Bottom 22'. Fishermen having luck w/ crappies. >8 fishermen.
Winter Dissolved Oxygen Profiles Lake: N. Spirit Site 2 New County: Taylor Season: 2010-11
Aerator Started: Time: 1311 Date: 01/11/2011 Depth DO(mg/L) DO DO DO DO DO DO Surface x x 1' x 2 8.03 3 x 4 7.5 5 x 6 x 7 x 8 4.22 9 x 10 x 11 x 12 2.92 13 x 14 x 15 x 16 1.39 17 x 18 x 19 x 20 0.42 24 0.41 25 0.41 x 30 35 40