| Lake Lanier Water Quality Trend Monitoring | ||||||||
| Station 7 - Squirrel Creek | ||||||||
| Field Measurements | ||||||||
| Air | Water | Conduct. | Cond @25°C | |||||
| Sample Date | Time | Temp °C | Temp °C | pH | micromhos/cm | micromhos/cm | D.O. mg/l | |
| 07/14/99 | 1130 | 24 | 27 | 8.21 | 51 | 47 | 8.0 | |
| 07/28/99 | 0840 | 23 | 29 | 8.42 | 54 | 49 | 8.4 | |
| 08/08/99 | 0855 | 24 | 28 | 8.11 | 51 | 48 | 8.2 | |
| 08/19/99 | 1348 | 32 | 32 | 8.54 | 52 | 45 | 9.1 | |
| 09/06/99 | 0900 | 22 | 25 | 8.33 | 46 | 45 | 9.0 | |
| 09/25/99 | 1120 | 22 | 19 | 7.44 | 60 | 67 | 9.5 | |
| 10/14/99 | 1320 | 26 | 20 | 7.16 | 71 | 79 | 7.9 | |
| 10/31/99 | 0908 | 19 | 14 | 7.34 | 58 | 71 | 9.9 | |
| 11/11/99 | * 0922 | 17 | 12 | 7.35 | 55 | 72 | 9.8 | |
| 11/28/99 | 1250 | 20 | 13 | 7.20 | 60 | 76 | 10.8 | |
| 12/15/99 | 1840 | 10 | 8 | 7.35 | 52 | 75 | 10.7 | |
| 12/26/99 | 1230 | 12 | 7 | 7.42 | 51 | 80 | 11.2 | |
| 01/15/00 | 1247 | 10 | 8 | 7.12 | 51 | 76 | 11.6 | |
| 01/27/00 | 1215 | 4 | 5 | 6.93 | 45 | 75 | 12.8 | |
| 02/13/00 | 1240 | 8 | 8 | 7.09 | 50 | 74 | 12.6 | |
| 02/24/00 | 1032 | 15 | 11 | 7.14 | 48 | 65 | 9.9 | |
| 03/09/00 | 0905 | 16 | 13 | 8.08 | 44 | 56 | 12.5 | |
| 03/27/00 | 0945 | 16 | 16 | 7.21 | 41 | 49 | 10.6 | |
| 04/11/00 | 1245 | 22 | 16 | 6.77 | 45 | 53 | 9.0 | |
| 04/27/00 | ** 1446 | 23 | 18 | 6.89 | 59 | 66 | 9.2 | |
| 05/12/00 | 0952 | 25 | 25 | 7.52 | 50 | 49 | 8.9 | |
| 05/18/00 | 1021 | 24 | 24 | 7.52 | 49 | 48 | 9.2 | |
| 06/01/00 | 1202 | 28 | 27 | 7.65 | 51 | 48 | 8.5 | |
| 06/16/00 | 1002 | 28 | 29 | 8.34 | 52 | 47 | 8.2 | |
| Station 7 - Squirrel Creek | Lab Measurements | |||||||
| Fecal col. | BOD5 | TSS | Hardness | Alkalinity | COD | |||
| Sample Date | cfb/100ml | mg/l | mg/l | Turb NTU | mg/l CaCO3 | mg/l CaCO3 | mg/l | |
| 07/14/99 | 50 | 1.8 | 4.8 | 6.0 | 14 | 18 | 5.5 | |
| 07/28/99 | 250 | 1.2 | 6.5 | 5.0 | 26 | 19 | 13.8 | |
| 08/08/99 | 170 | 0.9 | 6.2 | 5.2 | 28 | 19 | 11.5 | |
| 08/19/99 | 180 | 1.8 | 7.0 | 5.3 | 26 | 18 | 7.7 | |
| 09/06/99 | 0 | 2.3 | 8.4 | 7.1 | 32 | 19 | 16.8 | |
| 09/25/99 | 270 | 1.4 | 48.0 | 13.0 | 44 | 29 | 6.7 | |
| 10/14/99 | 200 | 1.4 | 2.6 | 6.6 | 50 | 29 | 40.1 | |
| 10/31/99 | 250 | 2.5 | 1.6 | 2.6 | 48 | 30 | 10.0 | |
| 11/11/99 | 310 | 2.6 | 2.2 | 3.0 | 48 | 32 | 6.0 | |
| 11/28/99 | 140 | 1.7 | 3.2 | 2.2 | 52 | 29 | 2.0 | |
| 12/15/99 | 600 | 3.8 | 10.8 | 17.0 | 52 | 29 | 7.4 | |
| 12/26/99 | 40 | 1.9 | 1.8 | 3.1 | 56 | 29 | 4.0 | |
| 01/15/00 | 60 | 1.3 | 2.8 | 5.7 | 44 | 28 | 4.1 | |
| 01/27/00 | 70 | 0.5 | 2.2 | 5.0 | 42 | 26 | 4.1 | |
| 02/13/00 | 280 | 1.5 | 2.0 | 2.8 | 42 | 30 | 0.0 | |
| 02/24/00 | 220 | 2.0 | 11.2 | 8.9 | 40 | 24 | 1.6 | |
| 03/09/00 | 170 | 2.7 | 14.6 | 7.5 | 38 | 23 | 9.8 | |
| 03/27/00 | 20 | 3.2 | 14.8 | 13.0 | 30 | 17 | 9.8 | |
| 04/11/00 | 590 | 2.8 | 12.2 | 25.0 | 34 | 18 | 11.8 | |
| 04/27/00 | 280 | 2.6 | 16.2 | 12.5 | 42 | 24 | 9.8 | |
| 05/12/00 | 0 | 1.6 | 6.2 | 4.7 | 30 | 18 | 5.3 | |
| 05/18/00 | 10 | 1.7 | 8.6 | 4.7 | 30 | 19 | 5.3 | |
| 06/01/00 | 50 | 2.9 | 10.0 | 7.8 | 30 | 19 | 7.1 | |
| 06/16/00 | 270 | 1.7 | 6.6 | 5.0 | 32 | 17 | 5.3 | |
| NO2+NO3 | NH4 | Tot N | Tot P | |||||
| Sample Date | mg/l | mg/l | mg/l | mg/l | ||||
| 07/14/99 | 0.0182 | 0.0435 | 0.5583 | 0.0236 | ||||
| 08/08/99 | 0.0018 | 0.0125 | 0.4815 | 0.0404 | ||||
| 09/06/99 | 0.0008 | 0.0169 | 0.4739 | 0.0310 | ||||
| 10/14/99 | 0.2374 | 0.0567 | 0.5541 | 0.0278 | ||||
| 11/11/99 | 0.3304 | 0.0527 | 0.7366 | 0.0469 | ||||
| 12/15/99 | 0.5950 | 0.0659 | 1.4349 | 0.1438 | ||||
| 01/15/00 | 0.7427 | 0.0921 | 1.1715 | 0.0306 | ||||
| 02/13/00 | 0.6550 | 0.0537 | 0.8400 | 0.0352 | ||||
| 03/09/00 | 0.2275 | 0.0191 | 0.5987 | 0.0466 | ||||
| 04/11/00 | 0.4177 | 0.0671 | 0.9249 | 0.0445 | ||||
| 05/12/00 | 0.2000 | 0.0121 | 0.5072 | 0.0225 | ||||
| 06/01/00 | 0.0511 | 0.0378 | 0.5114 | 0.0331 |