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Lake Valentine, MN 2001 Lake Data |
Data collected by Nathan Bro (99.9%) and Dr. Bob Kistler (support & training)
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| DATE | Depth (m) | Temp (ºC) | O2 (mg/l) | jug temp (F) | jug temp (C) | Secchi disk (m) | Time of day | NO3-N(mg/l) | PO4-P (mg/l) | Comments | Samples for RCWD) |
| 4/20/01 | 0 | 11 | 12.40 | 1.18 | 2:00 | windy,mixing uniformly | TP | ||||
| 4/20/01 | 0.5 | 10.7 | 12.40 | 53 | 11.7 | TKN | |||||
| 4/20/01 | 1 | 10.6 | 12.30 | CLA-500ml | |||||||
| 4/20/01 | 1.5 | 10.5 | 12.50 | ||||||||
| 4/20/01 | 2 | 10.5 | 11.50 | ||||||||
| 4/20/01 | 2.5 | 10.5 | |||||||||
| 4/20/01 | 3 | 9.6 | 9.30 | ||||||||
| 4/20/01 | 3.5 | 8.9 | |||||||||
| 4/20/01 | bottom | 8.4 | 4.00 | ||||||||
| 4/27/01 | 0 | 15.9 | 11.29 | 0.825 | 3:15 | 0.066 | 0.1 | slight breeze, high water | none | ||
| 4/27/01 | 0.5 | 14.3 | 11.30 | 60 | 15.6 | ||||||
| 4/27/01 | 1 | 13.1 | 12.20 | ||||||||
| 4/27/01 | 1.5 | 12.8 | 12.40 | ||||||||
| 4/27/01 | 2 | 11.8 | 11.30 | ||||||||
| 4/27/01 | 2.5 | 9.7 | 9.90 | ||||||||
| 4/27/01 | 3 | 8.8 | 9.60 | ||||||||
| 4/27/01 | 3.5 | 8.2 | 9.30 | ||||||||
| 4/27/01 | 4 | 7.7 | 9.00 | ||||||||
| 4/27/01 | bottom | 7.6 | 1.10 | ||||||||
| DATE | Depth (m) | Temp (ºC) | O2 (mg/l) | jug temp (F) | jug temp (C) | Secchi disk (m) | Time of day | NO3-N(mg/l) | PO4-P (mg/l) | Comments | Samples for RCWD) |
| 5/3/01 | 0 | 16.9 | 10.00 | TP | |||||||
| 5/3/01 | 0.5 | 19.9 | 10.10 | 67.5 | 19.7 | 1.18 | 3:40 | 0.088 | 0.2 | Cloudy | TKN |
| 5/3/01 | 1 | 19.9 | 10.00 | CLA-500ml | |||||||
| 5/3/01 | 1.5 | 16.8 | 9.80 | ||||||||
| 5/3/01 | 2 | 16.6 | 9.60 | ||||||||
| 5/3/01 | 2.5 | 12.7 | 6.90 | ||||||||
| 5/3/01 | 3 | 10 | 4.40 | ||||||||
| 5/3/01 | 3.5 | 8.2 | 3.00 | ||||||||
| 5/3/01 | bottom | 7.8 | 1.50 | ||||||||
| 5/11/01 | 0 | 17.6 | 10.3 | 1.17 | 4:30 | 0.015 | 0.1 | Cloudy, windy | none | ||
| 5/11/01 | 0.5 | 17.6 | 10.4 | 64 | 17.8 | ||||||
| 5/11/01 | 1 | 17.6 | 10.3 | ||||||||
| 5/11/01 | 1.5 | 17.5 | 10.3 | ||||||||
| 5/11/01 | 2 | 17.2 | 10.15 | ||||||||
| 5/11/01 | 2.5 | 16.6 | 10.05 | ||||||||
| 5/11/01 | 3 | 16 | 9.7 | ||||||||
| 5/11/01 | 3.5 | 14.2 | 6.2 | ||||||||
| 5/11/01 | bottom | 11.3 | 3.9 | ||||||||
| 5/18/01 | 0 | 24 | 8.8 | 3.7 | 5:00 | 0.04 | 0.05 | very warm | TP | ||
| 5/18/01 | 0.5 | 22.9 | 8.9 | 74 | 23.3 | TKN | |||||
| 5/18/01 | 1 | 22.2 | 8.8 | CLA-500ml | |||||||
| 5/18/01 | 1.5 | 21.7 | 8.2 | ||||||||
| 5/18/01 | 2 | 20.5 | 7.8 | ||||||||
| 5/18/01 | 2.5 | 18.7 | 7 | ||||||||
| 5/18/01 | 3 | 16.9 | 5 | ||||||||
| 5/18/01 | 3.5 | 15.6 | 3.4 | ||||||||
| 5/18/01 | bottom | 14.9 | 2.5 | ||||||||
| 5/26/01 | 0 | 14.2 | 9 | 1.63 | 3:15 | 0.03 | 0.06 | cold and rainy | none | ||
| 5/26/01 | 0.5 | 14.1 | 8.6 | 58 | 14.4 | ||||||
| 5/26/01 | 1 | 14.1 | 8.6 | ||||||||
| 5/26/01 | 1.5 | 14.1 | 8.4 | ||||||||
| 5/26/01 | 2 | 14.1 | 8.2 | ||||||||
| 5/26/01 | 2.5 | 13.8 | 8.2 | ||||||||
| 5/26/01 | 3 | 13.6 | 8.1 | ||||||||
| 5/26/01 | 3.5 | 13.4 | 8.3 | ||||||||
| 5/26/01 | bottom | 12.9 | 4.8 | ||||||||
| DATE | Depth (m) | Temp (ºC) | O2 (mg/l) | jug temp (F) | jug temp (C) | Secchi disk (m) | Time of day | NO3-N(mg/l) | PO4-P (mg/l) | Comments | Samples for RCWD) |
| 6/1/01 | 0 | 18.2 | 9 | 2.65 | 4:50 | 0.03 | 0.1 | TP | |||
| 6/1/01 | 0.5 | 18.1 | 8.7 | 65 | 18.3 | TKN | |||||
| 6/1/01 | 1 | 18 | 8.7 | CLA-500ml | |||||||
| 6/1/01 | 1.5 | 17.8 | 8.7 | ||||||||
| 6/1/01 | 2 | 15.5 | 8.4 | ||||||||
| 6/1/01 | 2.5 | 14.8 | 8.1 | ||||||||
| 6/1/01 | 3 | 14.2 | 6.4 | ||||||||
| 6/1/01 | 3.5 | 13.6 | 4.9 | ||||||||
| 6/1/01 | bottom | 13 | 3.1 | ||||||||
| 6/8/01 | 0 | 21.1 | 8.1 | 3 | 1:00 | 0.02 | 0.1 | none | |||
| 6/8/01 | 0.5 | 19.2 | 8.3 | 70 | 21.1 | ||||||
| 6/8/01 | 1 | 18.7 | 8.2 | ||||||||
| 6/8/01 | 1.5 | 17.9 | 8 | ||||||||
| 6/8/01 | 2 | 17.2 | 7.3 | ||||||||
| 6/8/01 | 2.5 | 16.6 | 6.9 | ||||||||
| 6/8/01 | 3 | 15.8 | 5.6 | ||||||||
| 6/8/01 | 3.5 | 14.9 | 3.8 | ||||||||
| 6/8/01 | bottom | 12.7 | 2 | ||||||||
| 6/14/01 | 0 | 22.9 | 6.4 | 1.29 | 3:30 | 0.06 | 0.2 | Rain everday | TP | ||
| 6/14/01 | 0.5 | 22.8 | 6.3 | 74 | 23.3 | TKN | |||||
| 6/14/01 | 1 | 22.7 | 6.1 | CLA-500ml | |||||||
| 6/14/01 | 1.5 | 21.2 | 6 | ||||||||
| 6/14/01 | 2 | 20 | 5.5 | ||||||||
| 6/14/01 | 2.5 | 18.1 | 4.7 | ||||||||
| 6/14/01 | 3 | 17 | 3.7 | ||||||||
| 6/14/01 | 3.5 | 16 | 2.6 | ||||||||
| 6/14/01 | bottom | 15.4 | 1 | ||||||||
| 6/21/01 | 0 | 22.9 | 6.9 | 2.1 | 4:45 | 0.02 | 0.1 | none | |||
| 6/21/01 | 0.5 | 22.8 | 6.6 | 73 | 22.8 | ||||||
| 6/21/01 | 1 | 22.8 | 6.5 | ||||||||
| 6/21/01 | 1.5 | 22.8 | 6.5 | ||||||||
| 6/21/01 | 2 | 21.8 | 6.1 | ||||||||
| 6/21/01 | 2.5 | 20.5 | 5 | ||||||||
| 6/21/01 | 3 | 18.3 | 2.6 | ||||||||
| 6/21/01 | 3.5 | 16.9 | 2.6 | ||||||||
| 6/21/01 | bottom | 15.8 | 1.8 | ||||||||
| 6/28/01 | 0 | 28.3 | 6.3 | 1.82 | 5:15 | 0.02 | 0.1 | 90's all week | TP | ||
| 6/28/01 | 0.5 | 28.3 | 6.2 | 83 | 28.3 | TKN | |||||
| 6/28/01 | 1 | 25.4 | 6 | CLA-500ml | |||||||
| 6/28/01 | 1.5 | 24.3 | 5.7 | ||||||||
| 6/28/01 | 2 | 23.3 | 6.1 | ||||||||
| 6/28/01 | 2.5 | 21.4 | 6.4 | ||||||||
| 6/28/01 | 3 | 18.6 | 3.9 | ||||||||
| 6/28/01 | 3.5 | 16.1 | 2.3 | ||||||||
| 6/28/01 | bottom | 14.9 | 2 | ||||||||
| DATE | Depth (m) | Temp (ºC) | O2 (mg/l) | jug temp (F) | jug temp (C) | Secchi disk (m) | Time of day | NO3-N(mg/l) | PO4-P (mg/l) | Comments | Samples for RCWD) |
| 7/5/01 | 0 | 25.9 | 5.8 | 2.75 | 5:00 | 0.02 | 0.1 | none | |||
| 7/5/01 | 0.5 | 24.7 | 5.5 | 79 | 26.1 | ||||||
| 7/5/01 | 1 | 24 | 5.6 | ||||||||
| 7/5/01 | 1.5 | 23.6 | 5.4 | ||||||||
| 7/5/01 | 2 | 22.7 | 4.8 | ||||||||
| 7/5/01 | 2.5 | 21.4 | 5 | ||||||||
| 7/5/01 | 3 | 19.4 | 5.3 | ||||||||
| 7/5/01 | 3.5 | 16 | 2.2 | ||||||||
| 7/5/01 | bottom | 14.6 | 1.7 | ||||||||
| 7/12/01 | 0 | 28.2 | 5.3 | 2.8 | 5:30 | 0.02 | 0 | TP | |||
| 7/12/01 | 0.5 | 28.2 | 5.7 | 82 | 27.8 | TKN | |||||
| 7/12/01 | 1 | 26.7 | 5.7 | CLA-500 ml | |||||||
| 7/12/01 | 1.5 | 25.7 | 5.1 | ||||||||
| 7/12/01 | 2 | 24.1 | 4.6 | ||||||||
| 7/12/01 | 2.5 | 22.7 | 4.6 | ||||||||
| 7/12/01 | 3 | 20.5 | 4.3 | ||||||||
| 7/12/01 | 3.5 | 18.8 | 1.4 | ||||||||
| 7/12/01 | bottom | 16.4 | 0.7 | ||||||||
| 7/23/01 | 0 | 30.6 | 4.6 | 2.25 | 5:30 | 0.03 | 0.1 | 90's all week | none | ||
| 7/23/01 | 0.5 | 30.6 | 4.7 | 86 | 30.0 | ||||||
| 7/23/01 | 1 | 28.5 | 4.6 | ||||||||
| 7/23/01 | 1.5 | 28.1 | 4.3 | ||||||||
| 7/23/01 | 2 | 26.5 | 2.9 | ||||||||
| 7/23/01 | 2.5 | 24.7 | 2.5 | ||||||||
| 7/23/01 | 3 | 22.4 | 1.6 | ||||||||
| 7/23/01 | 3.5 | 19.5 | 1.2 | ||||||||
| 7/23/01 | bottom | 18.6 | 1 | ||||||||
| 7/28/01 | 0 | 24.4 | 4.2 | 2.3 | 12:00 | 0.03 | 0.1 | TP | |||
| 7/28/01 | 0.5 | 24.4 | 4.1 | 76 | 24.4 | TKN | |||||
| 7/28/01 | 1 | 24.4 | 3.8 | CLA-500ml | |||||||
| 7/28/01 | 1.5 | 24.4 | 3.7 | ||||||||
| 7/28/01 | 2 | 24.3 | 3.6 | ||||||||
| 7/28/01 | 2.5 | 24 | 2.9 | ||||||||
| 7/28/01 | 3 | 23.2 | 1.2 | ||||||||
| 7/28/01 | 3.5 | 19.6 | 0.9 | ||||||||
| 7/28/01 | bottom | 17.7 | 0.7 | ||||||||
| DATE | Depth (m) | Temp (ºC) | O2 (mg/l) | jug temp (F) | jug temp (C) | Secchi disk (m) | Time of day | NO3-N(mg/l) | PO4-P (mg/l) | Comments | Samples for RCWD) |
| 8/6/01 | 0 | 32.8 | 3.7 | 1.75 | 5:30 | 0.035 | 0.05 | 90's all week | none | ||
| 8/6/01 | 0.5 | 30.7 | 4.1 | 89 | 31.7 | ||||||
| 8/6/01 | 1 | 29.2 | 3.4 | ||||||||
| 8/6/01 | 1.5 | 28.1 | 2.7 | ||||||||
| 8/6/01 | 2 | 25.8 | 1.1 | ||||||||
| 8/6/01 | 2.5 | 24.7 | 0.9 | ||||||||
| 8/6/01 | 3 | 23.1 | 0.7 | ||||||||
| 8/6/01 | 3.5 | 20.1 | 0.6 | ||||||||
| 8/6/01 | bottom | 19.2 | 0.4 | ||||||||
| 8/10/01 | 0 | 27.1 | 4 | 1.6 | 4:30 | 0.02 | 0.05 | 90's all week | TP | ||
| 8/10/01 | 0.5 | 27.2 | 4 | 80 | 26.7 | cooler for the last two days | TKN | ||||
| 8/10/01 | 1 | 26.9 | 3.8 | CLA-500ml | |||||||
| 8/10/01 | 1.5 | 26.2 | 2.8 | ||||||||
| 8/10/01 | 2 | 25.6 | 2.6 | ||||||||
| 8/10/01 | 2.5 | 24.6 | 1.1 | ||||||||
| 8/10/01 | 3 | 22 | 0.9 | ||||||||
| 8/10/01 | 3.5 | 19.5 | 0.8 | ||||||||
| 8/10/01 | bottom | 19.2 | 0.6 | ||||||||
| 8/20/01 | 0 | 25.2 | 4.5 | 0.8 | 5:00 | 0.02 | 0.05 | water was opaque green for the first time | none | ||
| 8/20/01 | 0.5 | 22.9 | 4.6 | 76 | 24.4 | ||||||
| 8/20/01 | 1 | 22.1 | 4.1 | ||||||||
| 8/20/01 | 1.5 | 21.6 | 3.8 | ||||||||
| 8/20/01 | 2 | 21.2 | 2.7 | ||||||||
| 8/20/01 | 2.5 | 20.7 | 2.5 | ||||||||
| 8/20/01 | 3 | 20.4 | 1.6 | ||||||||
| 8/20/01 | 3.5 | 20.1 | 0.9 | ||||||||
| 8/20/01 | bottom | 18.6 | 0.6 | ||||||||
| 8/24/01 | 0 | 25.6 | 4.7 | 0.73 | 5:00 | 0.02 | 0 | TP | |||
| 8/24/01 | 0.5 | 24.4 | 4.8 | 78 | 25.6 | TKN | |||||
| 8/24/01 | 1 | 23.4 | 4.2 | CLA-250ml | |||||||
| 8/24/01 | 1.5 | 22.4 | 2.3 | ||||||||
| 8/24/01 | 2 | 21.6 | 1 | ||||||||
| 8/24/01 | 2.5 | 20.8 | 0.8 | ||||||||
| 8/24/01 | 3 | 20.3 | 0.6 | ||||||||
| 8/24/01 | 3.5 | 19.6 | 0.5 | ||||||||
| 8/24/01 | bottom | 18.3 | 0.4 | ||||||||
| 8/31/01 | 0 | 24.2 | 4.2 | 1 | 4:30 | 0.02 | 0 | none | |||
| 8/31/01 | 0.5 | 23.5 | 3.8 | 75 | 23.9 | ||||||
| 8/31/01 | 1 | 23.2 | 3.6 | ||||||||
| 8/31/01 | 1.5 | 22.5 | 3.4 | ||||||||
| 8/31/01 | 2 | 22.1 | 2.8 | ||||||||
| 8/31/01 | 2.5 | 21.8 | 2.3 | ||||||||
| 8/31/01 | 3 | 20.7 | 1 | ||||||||
| 8/31/01 | 3.5 | 19.5 | 0.6 | ||||||||
| 8/31/01 | bottom | 18.6 | 0.3 | ||||||||
| DATE | Depth (m) | Temp (ºC) | O2 (mg/l) | jug temp (F) | jug temp (C) | Secchi disk (m) | Time of day | NO3-N(mg/l) | PO4-P (mg/l) | Comments | Samples for RCWD) |
| 9/7/01 | 0 | 22.3 | 3.4 | 0.87 | 2:15 | 0.03 | 0.1 | TP | |||
| 9/7/01 | 0.5 | 22.2 | 3.6 | 72 | 22.2 | TKN | |||||
| 9/7/01 | 1 | 21.8 | 3.3 | CLA-250ml | |||||||
| 9/7/01 | 1.5 | 21.6 | 3 | ||||||||
| 9/7/01 | 2 | 21.3 | 3.1 | ||||||||
| 9/7/01 | 2.5 | 21.1 | 3.1 | ||||||||
| 9/7/01 | 3 | 21 | 2.9 | ||||||||
| 9/7/01 | 3.5 | 20.6 | 0.8 | ||||||||
| 9/7/01 | bottom | 19.2 | 0.6 | ||||||||
| 9/15/01 | 0 | 18.8 | 3.2 | 1.2 | 3:00 | 0.06 | 0.1 | none | |||
| 9/15/01 | 0.5 | 18.7 | 3 | 65 | 18.3 | ||||||
| 9/15/01 | 1 | 18.3 | 2.5 | ||||||||
| 9/15/01 | 1.5 | 18.1 | 2.4 | ||||||||
| 9/15/01 | 2 | 17.9 | 2.4 | ||||||||
| 9/15/01 | 2.5 | 17.9 | 2.5 | ||||||||
| 9/15/01 | 3 | 17.9 | 2.5 | ||||||||
| 9/15/01 | 3.5 | 17.8 | 2.6 | ||||||||
| 9/15/01 | bottom | 17.8 | 0.6 | ||||||||
| 9/26/01 | 0 | 16.4 | 8.2 | 1.5 | 4:15 | 0.06 | 0.1 | TP | |||
| 9/26/01 | 0.5 | 16.2 | 7.9 | 60 | 15.6 | TKN | |||||
| 9/26/01 | 1 | 16.1 | 7.9 | CLA-500mL | |||||||
| 9/26/01 | 1.5 | 15.7 | 7.6 | ||||||||
| 9/26/01 | 2 | 15.1 | 6.1 | ||||||||
| 9/26/01 | 2.5 | 14.7 | 5.9 | ||||||||
| 9/26/01 | 3 | 14.3 | 4.7 | ||||||||
| 9/26/01 | 3.5 | 14.2 | 3.7 | ||||||||
| 9/26/01 | bottom | 14.2 | 0.2 | ||||||||
| DATE | Depth (m) | Temp (ºC) | O2 (mg/l) | jug temp (F) | jug temp (C) | Secchi disk (m) | Time of day | NO3-N(mg/l) | PO4-P (mg/l) | Comments | Samples for RCWD) |
| 10/2/01 | 0 | 16.7 | 9.3 | 1.56 | 4:15 | 0.03 | 0.05 | none | |||
| 10/2/01 | 0.5 | 16.4 | 9.4 | 62 | 16.7 | ||||||
| 10/2/01 | 1 | 15.9 | 9.8 | ||||||||
| 10/2/01 | 1.5 | 15.2 | 8.9 | ||||||||
| 10/2/01 | 2 | 14.8 | 5.4 | ||||||||
| 10/2/01 | 2.5 | 14.7 | 3.8 | ||||||||
| 10/2/01 | 3 | 14.5 | 2.9 | ||||||||
| 10/2/01 | 3.5 | 14.4 | 2.2 |