| Report Year: 2009 |
| Mariposa Lake, Jasper County |
| Carbon Balance Table |
| Parameter | 7/20/2009 | 6/15/2009 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 |
| Alkalinity as CaCO3 (mg/L) | 138 | 167 | 152.5 | - | 128.7 | 123.7 | 119.0 | 103.3 | 79.3 | 96.3 | 113.7 | 146.0 |
| Dissolved Organic Carbon (mM) | 0.51 | 0.43 | 0.47 | - | 0.44 | 0.48 | 0.34 | 0.49 | 0.81 | 1.05 | - | - |
| Temperature (oC) | 21.5 | 20.6 | 21.1 | - | 26.4 | 25.7 | 25.1 | 22.4 | 24.8 | 26.3 | 22.3 | 24.7 |
| Specific Conductivity (μS/cm) | 330.0 | 410.0 | 370.00 | - | 304.12 | 316.02 | 326.38 | 289.91 | 301.43 | 329.96 | 303.10 | 304.90 |
| pH | 7.9 | 8.1 | 8.0 | - | 8.6 | 8.9 | 9.2 | 9.0 | 8.7 | 9.1 | 8.7 | 8.5 |
| I (Ionic Strength ?) | 0.0578 | 0.0718 | 0.0648 | - | 0.0532 | 0.0553 | 0.0571 | 0.0507 | 0.0515 | 0.0577 | 0.0530 | 0.0534 |
| Dissolved Inorganic Carbon (mM) | 2.79 | 3.34 | 3.07 | - | 2.43 | 2.22 | 1.99 | 1.87 | 1.43 | 1.67 | 2.15 | 2.81 |
| pCO2 (μatm) | 1418 | 1238 | 1328.2 | - | 564.3 | 438.9 | 152.1 | 109.8 | 121.4 | 101.4 | 186.5 | 1373.6 |
| Equilibrium CO2 | 14.01 | 14.39 | 14.20 | - | 12.24 | 12.41 | 12.65 | 13.66 | 13.54 | 12.23 | 13.82 | 12.77 |
| CO2 (μM) | 53.71 | 48.15 | 50.93 | - | 20.75 | 15.56 | 5.53 | 4.20 | 4.38 | 3.53 | 6.74 | 44.56 |
| Δ CO2 from Equilibrium | 39.697 | 33.759 | 36.73 | - | 8.51 | 3.15 | -7.12 | -9.45 | -9.16 | -8.70 | -7.08 | 31.78 |