| Lake Lanier Water Quality Trend Monitoring | ||||||||
| Station 9 - Six Mile 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 | 1435 | 29 | 22 | 8.09 | 150 | 159 | 8.9 | |
| 07/28/99 | 1125 | 29 | 22 | 7.10 | 185 | 196 | 8.8 | |
| 08/08/99 | 1203 | 32 | 22 | 7.30 | 197 | 208 | 9.8 | |
| 08/19/99 | 1625 | 34 | 25 | 7.09 | 233 | 232 | 8.5 | |
| 09/06/99 | 1131 | 29 | 20 | 6.93 | 221 | 244 | 9.1 | |
| 09/25/99 | 1425 | 26 | 17 | 6.97 | 202 | 238 | 9.3 | |
| 10/14/99 | 1628 | 26 | 19 | 7.04 | 156 | 176 | 8.1 | |
| 10/31/99 | 1145 | 23 | 15 | 7.08 | 138 | 171 | 8.9 | |
| 11/11/99 | 1206 | 23 | 14 | 7.09 | 137 | 171 | 9.6 | |
| 11/28/99 | 1520 | 22 | 13 | 7.19 | 120 | 154 | 10.5 | |
| 12/15/99 | 1600 | 15 | 11 | 6.77 | 107 | 146 | 11.3 | |
| 12/26/99 | 1500 | 13 | 7 | 7.18 | 104 | 161 | 10.4 | |
| 01/15/00 | 1626 | 11 | 8 | 6.87 | 104 | 154 | 10.8 | |
| 01/27/00 | 1505 | 6 | 6 | 7.90 | 95 | 153 | 11.8 | |
| 02/13/00 | 1550 | 6 | 8 | 7.02 | 104 | 153 | 11.3 | |
| 02/24/00 | 1303 | 17 | 12 | 6.96 | 111 | 148 | 10.4 | |
| 03/09/00 | 1202 | 23 | 15 | 7.00 | 105 | 130 | 10.8 | |
| 03/27/00 | 1108 | 17 | 13 | 6.80 | 100 | 142 | 10.1 | |
| 04/11/00 | 1609 | 23 | 17 | 6.99 | 121 | 145 | 9.7 | |
| 04/27/00 | 1725 | 24 | 17 | 9.86 | 129 | 151 | 9.2 | |
| 05/12/00 | 1247 | 27 | 19 | 6.65 | 150 | 169 | 8.6 | |
| 05/18/00 | *** 1258 | 30 | 20 | 7.01 | 157 | 175 | 8.8 | |
| 06/01/00 | 1415 | 30 | 22 | 7.20 | 172 | 184 | 8.3 | |
| 06/16/00 | 1229 | 31 | 22 | 7.03 | 174 | 183 | 8.0 | |
| Station 9 - Six Mile 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 | 850 | 1.6 | 5.2 | 8.2 | 40 | 16 | 1.4 | |
| 07/28/99 | 1250 | 1.4 | 2.5 | 4.7 | 60 | 13 | 9.7 | |
| 08/08/99 | 500 | 0.3 | 1.5 | 2.1 | 68 | 13 | 11.5 | |
| 08/19/99 | 7580 | 2.2 | 3.4 | 4.6 | 32 | 15 | 7.7 | |
| 09/06/99 | 1350 | 1.3 | 1.4 | 2.1 | 80 | 14 | 6.7 | |
| 09/25/99 | 1800 | 1.0 | 4.4 | 3.5 | 84 | 15 | 6.7 | |
| 10/14/99 | 650 | 1.1 | 2.6 | 6.3 | 68 | 16 | 0.0 | |
| 10/31/99 | 540 | 1.2 | 2.0 | 2.5 | 68 | 15 | 0.0 | |
| 11/11/99 | 240 | 2.5 | 0.6 | 3.5 | 70 | 17 | 7.9 | |
| 11/28/99 | 340 | 0.9 | 1.2 | 2.9 | 68 | 16 | 0.0 | |
| 12/15/99 | 110 | 2.3 | 1.8 | 4.9 | 66 | 14 | 5.0 | |
| 12/26/99 | 170 | 2.3 | 1.8 | 4.3 | 70 | 15 | 11.9 | |
| 01/15/00 | 280 | 0.7 | 1.8 | 5.7 | 58 | 14 | 4.1 | |
| 01/27/00 | 110 | 0.4 | 0.2 | 5.2 | 58 | 13 | 2.1 | |
| 02/13/00 | 100 | 1.3 | 0.8 | 3.1 | 58 | 14 | 0.0 | |
| 02/24/00 | 170 | 1.5 | 1.2 | 4.3 | 56 | 13 | 0.0 | |
| 03/09/00 | 100 | 1.0 | 1.4 | 3.5 | 56 | 13 | 9.8 | |
| 03/27/00 | 210 | 1.5 | 0.8 | 3.3 | 56 | 13 | 9.8 | |
| 04/11/00 | 80 | 1.4 | 1.8 | 3.3 | 56 | 12 | 7.9 | |
| 04/27/00 | 540 | 1.5 | 2.8 | 3.8 | 56 | 12 | 5.9 | |
| 05/12/00 | 330 | 1.0 | 2.8 | 3.0 | 60 | 15 | 1.8 | |
| 05/18/00 | 380 | 1.4 | 6.4 | 3.8 | 62 | 16 | 1.8 | |
| 06/01/00 | 560 | 1.6 | 3.8 | 3.8 | 68 | 15 | 0.0 | |
| 06/16/00 | 2160 | 1.6 | 9.2 | 7.5 | 64 | 17 | 1.8 | |
| NO2+NO3 | NH4 | Tot N | Tot P | |||||
| Sample Date | mg/l | mg/l | mg/l | mg/l | ||||
| 07/14/99 | 9.7452 | 0.0169 | 14.2214 | 0.0223 | ||||
| 08/08/99 | 9.1558 | 0.0176 | 23.6910 | 0.0167 | ||||
| 09/06/99 | 9.8950 | 0.1047 | 12.6963 | 0.0473 | ||||
| 10/14/99 | 10.9238 | 0.0285 | 14.2037 | 0.0145 | ||||
| 11/11/99 | 10.2489 | 0.0483 | 11.5015 | 0.0215 | ||||
| 12/15/99 | 6.3552 | 0.0921 | 11.8917 | 0.0258 | ||||
| 01/15/00 | 8.8391 | 0.1491 | 12.2640 | 0.0331 | ||||
| 02/13/00 | 8.9754 | 0.0283 | 10.1229 | 0.0199 | ||||
| 03/09/00 | 7.4406 | 0.0177 | 8.8294 | 0.0153 | ||||
| 04/11/00 | 8.6122 | 0.0258 | 9.5546 | 0.0174 | ||||
| 05/12/00 | 10.5805 | 0.0346 | 11.7105 | 0.0216 | ||||
| 06/01/00 | 11.9162 | 0.0332 | 13.3078 | 0.0288 |