| Lake Lanier Water Quality Trend Monitoring | ||||||||
| Station 10 - Buford Dam Spillway | ||||||||
| 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 | 1505 | 28 | 11 | 7.85 | 30 | 40 | 12.4 | |
| 07/28/99 | 1155 | 31 | 12 | 6.75 | 31 | 40 | 12.1 | |
| 08/08/99 | 1232 | 32 | 11 | 6.46 | 29 | 37 | 4.8 | |
| 08/19/99 | 1655 | 35 | 13 | 6.63 | 26 | 34 | 4.9 | |
| 09/06/99 | 1158 | 32 | 12 | 6.38 | 30 | 39 | 3.8 | |
| 09/25/99 | 1500 | 27 | 12 | 6.42 | 31 | 42 | 3.4 | |
| 10/14/99 | 1700 | 28 | 12 | 6.54 | 33 | 45 | 2.3 | |
| 10/31/99 | ** 1235 | 25 | 12 | 6.62 | 33 | 44 | 4.2 | |
| 11/11/99 | ** 1312 | 25 | 12 | 6.63 | 34 | 44 | 4.1 | |
| 11/28/99 | ** 1622 | 22 | 11 | 6.82 | 36 | 47 | 5.1 | |
| 12/15/99 | 1528 | 18 | 11 | 6.58 | 38 | 51 | 5.5 | |
| 12/26/99 | 1530 | 14 | 11 | 7.00 | 40 | 56 | 5.8 | |
| 01/15/00 | 1502 | 13 | 10 | 6.96 | 31 | 44 | 9.3 | |
| 01/27/00 | 1530 | 6 | 8 | 7.31 | 30 | 43 | 10.3 | |
| 02/13/00 | 1625 | 6 | 7 | 7.15 | 29 | 44 | 11.5 | |
| 02/24/00 | 1330 | 16 | 8 | 6.99 | 30 | 45 | 10.1 | |
| 03/09/00 | 1235 | 24 | 8 | 6.86 | 31 | 44 | 10.4 | |
| 03/27/00 | 1135 | 18 | 8 | 6.80 | 30 | 44 | 9.5 | |
| 04/11/00 | 1637 | 23 | 10 | 7.00 | 32 | 44 | 9.6 | |
| 04/27/00 | *** 1758 | 23 | 9 | 6.84 | 32 | 44 | 8.9 | |
| 05/12/00 | 1341 | 28 | 10 | 6.33 | 33 | 47 | 7.7 | |
| 05/18/00 | 1325 | 31 | 10 | 6.77 | 33 | 45 | 7.7 | |
| 06/01/00 | 1444 | 32 | 10 | 6.79 | 33 | 46 | 7.8 | |
| 06/16/00 | 1258 | 29 | 10 | 6.57 | 33 | 46 | 5.7 | |
| Station 10 - Buford Dam Spillway | 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 | 0 | 1.6 | 0.5 | 1.7 | 18 | 14 | 1.4 | |
| 07/28/99 | 20 | 2.2 | 0.8 | 1.3 | 22 | 13 | 2.8 | |
| 08/08/99 | 0 | 0.2 | 1.0 | 1.3 | 26 | 13 | 3.8 | |
| 08/19/99 | 20 | 0.6 | 1.0 | 1.5 | 24 | 13 | 3.8 | |
| 09/06/99 | 0 | 0.8 | 1.6 | 1.9 | 32 | 13 | 3.4 | |
| 09/25/99 | 0 | 0.5 | 1.0 | 4.6 | 34 | 15 | 13.4 | |
| 10/14/99 | 0 | 1.9 | 1.4 | 7.0 | 36 | 15 | 0.0 | |
| 10/31/99 | 0 | 1.5 | 2.4 | 8.9 | 36 | 16 | 0.0 | |
| 11/11/99 | 0 | 1.8 | 3.2 | 9.7 | 34 | 16 | 0.0 | |
| 11/28/99 | 0 | 2.3 | 3.4 | 5.1 | 42 | 17 | 6.0 | |
| 12/15/99 | 0 | 2.6 | 3.6 | 6.7 | 44 | 20 | 1.2 | |
| 12/26/99 | 0 | 1.6 | 3.2 | 5.8 | 42 | 20 | 11.9 | |
| 01/15/00 | 20 | 0.5 | 1.6 | 2.1 | 30 | 15 | 6.2 | |
| 01/27/00 | 0 | 0.3 | 1.2 | 1.5 | 30 | 15 | 6.2 | |
| 02/13/00 | 40 | 0.6 | 1.0 | 1.4 | 30 | 15 | 1.6 | |
| 02/24/00 | 0 | 1.2 | 0.6 | 1.4 | 30 | 14 | 0.0 | |
| 03/09/00 | 0 | 0.8 | 0.6 | 0.8 | 34 | 15 | 7.9 | |
| 03/27/00 | 0 | 1.3 | 0.6 | 0.7 | 36 | 14 | 7.9 | |
| 04/11/00 | 0 | 0.9 | 0.6 | 0.8 | 30 | 13 | 5.9 | |
| 04/27/00 | 0 | 0.6 | 0.4 | 0.8 | 30 | 15 | 5.9 | |
| 05/12/00 | 0 | 1.1 | 0.6 | 0.9 | 28 | 14 | 1.8 | |
| 05/18/00 | 0 | 1.6 | 0.8 | 1.1 | 28 | 14 | 3.5 | |
| 06/01/00 | 0 | 0.7 | 1.0 | 0.8 | 32 | 15 | 0.0 | |
| 06/16/00 | 4 | 0.6 | 1.2 | 0.7 | 32 | 13 | 3.5 | |
| NO2+NO3 | NH4 | Tot N | Tot P | |||||
| Sample Date | mg/l | mg/l | mg/l | mg/l | ||||
| 07/14/99 | 0.4703 | 0.0122 | 1.0026 | 0.0184 | ||||
| 08/08/99 | 0.4938 | 0.0098 | 0.7137 | 0.0098 | ||||
| 09/06/99 | 0.3566 | 0.1026 | 1.1097 | 0.0262 | ||||
| 10/14/99 | 0.4893 | 0.0241 | 0.9164 | 0.0080 | ||||
| 11/11/99 | 0.2168 | 0.1597 | 0.6217 | 0.0168 | ||||
| 12/15/99 | 0.0506 | 0.2933 | 0.6521 | 0.0254 | ||||
| 01/15/00 | 0.1102 | 0.1243 | 0.5094 | 0.0163 | ||||
| 02/13/00 | 0.1183 | 0.0653 | 0.3225 | 0.0119 | ||||
| 03/09/00 | 0.1523 | 0.0794 | 0.4134 | 0.0178 | ||||
| 04/11/00 | 0.2347 | 0.0406 | 0.4727 | 0.0136 | ||||
| 05/12/00 | 0.3500 | 0.0068 | 0.5590 | 0.0106 | ||||
| 06/01/00 | 0.3681 | 0.0106 | 0.5189 | 0.0203 |