| Report Year: 2009 |
| East Lake (Osceola), Clarke County |
| Carbon Balance Table |
| Parameter | 6/18/2009 | 7/22/2009 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 |
| Alkalinity as CaCO3 (mg/L) | 151 | 135 | 143.0 | - | 131.5 | 104.8 | 108.1 | 109.6 | 73.7 | 104.8 | 99.3 | 124.7 |
| Dissolved Organic Carbon (mM) | 0.59 | 0.66 | 0.62 | - | 0.73 | 0.96 | 0.72 | 0.86 | 1.27 | 1.37 | - | - |
| Temperature (oC) | 21.7 | 24.0 | 22.9 | - | 26.5 | 24.0 | 24.7 | 22.8 | 23.5 | 25.1 | 23.1 | 24.7 |
| Specific Conductivity (μS/cm) | 340.0 | 280.0 | 310.00 | - | 275.20 | 293.69 | 288.86 | 276.11 | 264.44 | 421.57 | 233.22 | 216.93 |
| pH | 8.7 | 8.9 | 8.8 | - | 8.9 | 8.3 | 8.5 | 8.8 | 8.7 | 8.4 | 8.5 | 8.8 |
| I (Ionic Strength ?) | 0.0595 | 0.0490 | 0.0543 | - | 0.0482 | 0.0514 | 0.0506 | 0.0483 | 0.0467 | 0.0738 | 0.0408 | 0.0380 |
| Dissolved Inorganic Carbon (mM) | 2.88 | 2.51 | 2.70 | - | 2.38 | 2.06 | 1.70 | 2.02 | 1.44 | 2.03 | 1.92 | 2.33 |
| pCO2 (μatm) | 249 | 133 | 190.6 | - | 179.7 | 1446.0 | 659.0 | 202.5 | 137.9 | 501.3 | 308.1 | 208.6 |
| Equilibrium CO2 | 13.94 | 13.00 | 13.47 | - | 12.19 | 13.03 | 12.12 | 13.49 | 13.80 | 12.64 | 13.64 | 12.76 |
| CO2 (μM) | 9.37 | 4.66 | 7.01 | - | 6.38 | 49.68 | 21.96 | 7.27 | 5.19 | 16.51 | 12.73 | 7.33 |
| Δ CO2 from Equilibrium | -4.572 | -8.344 | -6.46 | - | -5.81 | 36.64 | 9.84 | -6.22 | -8.61 | 3.87 | -0.91 | -5.43 |