| Report Year: 2009 |
| DeSoto Bend Lake, Harrison County |
| Carbon Balance Table |
| Parameter | 6/10/2009 | 7/15/2009 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 |
| Alkalinity as CaCO3 (mg/L) | 280 | 251 | 265.5 | - | - | - | 259.5 | 212.4 | 181.8 | 260.7 | 257.3 | 275.0 |
| Dissolved Organic Carbon (mM) | 0.50 | 0.46 | 0.48 | - | - | - | 0.25 | 0.45 | 0.81 | 0.75 | - | - |
| Temperature (oC) | 20.4 | 26.4 | 23.4 | - | - | - | 24.8 | 22.4 | 24.7 | 27.2 | 22.8 | 26.1 |
| Specific Conductivity (μS/cm) | 600.0 | 560.0 | 580.00 | - | - | - | 585.06 | 530.67 | 553.26 | 561.14 | 548.72 | 588.76 |
| pH | 8.4 | 8.4 | 8.4 | - | - | - | 8.3 | 8.7 | 8.6 | 8.7 | 8.5 | 8.5 |
| I (Ionic Strength ?) | 0.1050 | 0.0980 | 0.1015 | - | - | - | 0.1024 | 0.0929 | 0.0968 | 0.0982 | 0.0960 | 0.1030 |
| Dissolved Inorganic Carbon (mM) | 5.48 | 4.89 | 5.18 | - | - | - | 5.09 | 4.03 | 3.46 | 4.94 | 4.99 | 5.29 |
| pCO2 (μatm) | 954 | 828 | 891.1 | - | - | - | 1063.1 | 359.3 | 332.1 | 469.3 | 672.8 | 843.8 |
| Equilibrium CO2 | 14.47 | 12.14 | 13.30 | - | - | - | 12.77 | 13.69 | 12.79 | 11.92 | 13.64 | 12.31 |
| CO2 (μM) | 37.30 | 27.18 | 32.24 | - | - | - | 37.57 | 13.54 | 11.48 | 15.26 | 24.70 | 28.66 |
| Δ CO2 from Equilibrium | 22.832 | 15.039 | 18.94 | - | - | - | 24.80 | -0.15 | -1.31 | 3.34 | 11.06 | 16.35 |