| Lake Lanier Water Quality Trend Monitoring | ||||||||
| Station 2 - Flat 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 | 1340 | 28 | 24 | 8.05 | 615 | 627 | 8.0 | |
| 07/28/99 | 1030 | 30 | 26 | 7.34 | 781 | 768 | 7.9 | |
| 08/08/99 | 1046 | 30 | 26 | 7.41 | 830 | 821 | 7.9 | |
| 08/19/99 | 1535 | 38 | 29 | 7.47 | 900 | 834 | 8.0 | |
| 09/06/99 | 1036 | 28 | 24 | 7.42 | 813 | 832 | 8.2 | |
| 09/25/99 | 1340 | 28 | 22 | 7.38 | 789 | 832 | 8.3 | |
| 10/14/99 | 1545 | 25 | 22 | 7.24 | 630 | 668 | 7.5 | |
| 10/31/99 | 1055 | 24 | 19 | 7.43 | 757 | 855 | 8.0 | |
| 11/11/99 | 1120 | 22 | 18 | 7.22 | 612 | 695 | 8.5 | |
| 11/28/99 | 1430 | 24 | 16 | 7.29 | 421 | 506 | 9.8 | |
| 12/15/99 | 1655 | 16 | 14 | 7.30 | 517 | 648 | 10.0 | |
| 12/26/99 | * 1410 | 14 | 10 | 7.45 | 434 | 620 | 8.5 | |
| 01/15/00 | 1538 | 14 | 12 | 7.06 | 470 | 623 | 9.8 | |
| 01/27/00 | 1420 | 5 | 9 | 7.40 | 402 | 587 | 10.4 | |
| 02/13/00 | 1450 | 6 | 12 | 7.23 | 472 | 633 | 10.6 | |
| 02/24/00 | 1217 | 18 | 14 | 7.18 | 502 | 634 | 11.2 | |
| 03/09/00 | 1115 | 23 | 17 | 7.32 | 555 | 651 | 11.2 | |
| 03/27/00 | 1028 | 18 | 16 | 7.12 | 509 | 618 | 9.4 | |
| 04/11/00 | 1458 | 26 | 19 | 7.35 | 528 | 597 | 9.9 | |
| 04/27/00 | 1628 | 22 | 20 | 7.09 | 595 | 660 | 8.0 | |
| 05/12/00 | ** 1133 | 27 | 23 | 6.92 | 684 | 717 | 7.6 | |
| 05/18/00 | **1215 | 29 | 22 | 6.97 | 697 | 737 | 7.5 | |
| 06/01/00 | 1332 | 31 | 24 | 7.12 | 762 | 774 | 7.2 | |
| 06/16/00 | 1141 | 31 | 26 | 7.13 | 766 | 748 | 7.2 | |
| Station 2 - Flat 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 | 5500 | 1.8 | 6.5 | 7.2 | 130 | 40 | 12.4 | |
| 07/28/99 | 1600 | 2.2 | 2.7 | 3.1 | 177 | 42 | 15.2 | |
| 08/08/99 | 5300 | 1.4 | 2.8 | 2.7 | 168 | 45 | 15.4 | |
| 08/19/99 | 42300 | 1.6 | 3.2 | 2.1 | 186 | 58 | 19.2 | |
| 09/06/99 | 1200 | 2.0 | 2.0 | 2.3 | 186 | 58 | 20.2 | |
| 09/25/99 | 1400 | 1.1 | 4.2 | 2.4 | 192 | 51 | 16.8 | |
| 10/14/99 | 4400 | 2.9 | 4.0 | 4.5 | 164 | 51 | 16.7 | |
| 10/31/99 | 750 | 2.1 | 1.8 | 2.5 | 198 | 66 | 13.4 | |
| 11/11/99 | 450 | 3.9 | 2.6 | 2.7 | 130 | 36 | 7.9 | |
| 11/28/99 | 1400 | 1.7 | 3.4 | 3.3 | 128 | 39 | 9.9 | |
| 12/15/99 | 500 | 2.5 | 4.2 | 3.9 | 150 | 37 | 7.4 | |
| 12/26/99 | 250 | 3.2 | 10.4 | 7.4 | 176 | 40 | 9.9 | |
| 01/15/00 | 100 | 1.7 | 3.2 | 3.0 | 138 | 43 | 16.6 | |
| 01/27/00 | 750 | 2.7 | 4.0 | 3.1 | 132 | 51 | 10.4 | |
| 02/13/00 | 11250 | 2.8 | 3.2 | 4.9 | 130 | 46 | 10.4 | |
| 02/24/00 | 1950 | 3.1 | 1.4 | 2.2 | 130 | 45 | 6.2 | |
| 03/09/00 | 550 | 1.7 | 1.8 | 2.0 | 146 | 47 | 11.8 | |
| 03/27/00 | 350 | 2.2 | 2.8 | 2.7 | 130 | 45 | 9.8 | |
| 04/11/00 | 300 | 2.4 | 4.0 | 3.3 | 132 | 57 | 13.8 | |
| 04/27/00 | 1500 | 1.5 | 3.6 | 2.7 | 150 | 45 | 17.7 | |
| 05/12/00 | 3000 | 2.5 | 3.8 | 2.8 | 164 | 43 | 10.6 | |
| 05/18/00 | 650 | 3.0 | 3.2 | 2.6 | 170 | 56 | 1.8 | |
| 06/01/00 | 2550 | 5.9 | 3.0 | 3.1 | 176 | 44 | 14.1 | |
| 06/16/00 | 8250 | 2.1 | 4.0 | 2.4 | 150 | 38 | 10.6 | |
| NO2+NO3 | NH4 | Tot N | Tot P | |||||
| Sample Date | mg/l | mg/l | mg/l | mg/l | ||||
| 07/14/99 | 6.0467 | 0.0952 | 7.8552 | 0.6242 | ||||
| 08/08/99 | 15.0491 | 0.0557 | 21.2438 | 0.4434 | ||||
| 09/06/99 | 12.2423 | 0.0632 | 22.6269 | 0.4404 | ||||
| 10/14/99 | 6.2591 | 0.1479 | 11.2599 | 0.3487 | ||||
| 11/11/99 | 6.1657 | 0.0636 | 10.1005 | 0.4129 | ||||
| 12/15/99 | 5.7465 | 0.0696 | 16.2185 | 0.3031 | ||||
| 01/15/00 | 5.9440 | 0.0530 | 11.0580 | 0.2356 | ||||
| 02/13/00 | 8.2139 | 0.0692 | 10.1229 | 0.5183 | ||||
| 03/09/00 | 7.6281 | 0.0322 | 10.7697 | 0.3699 | ||||
| 04/11/00 | 6.6440 | 0.0223 | 7.9964 | 0.4157 | ||||
| 05/12/00 | 12.0685 | 0.1013 | 16.7180 | 0.5089 | ||||
| 06/01/00 | 14.3648 | 0.1898 | 18.6976 | 0.5246 |