| Report Year: 2009 |
| Crystal Lake, Hancock County |
| Carbon Balance Table |
| Parameter | 6/24/2009 | 7/29/2009 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 |
| Alkalinity as CaCO3 (mg/L) | 165 | 132 | 148.5 | - | 131.3 | 144.2 | 174.7 | 163.6 | 112.8 | 124.7 | 130.0 | 146.0 |
| Dissolved Organic Carbon (mM) | 0.68 | 0.69 | 0.68 | - | 0.89 | 0.59 | 0.79 | 0.80 | 1.00 | 1.18 | - | - |
| Temperature (oC) | 24.4 | 23.4 | 23.9 | - | 23.5 | 23.5 | 26.1 | 24.2 | 23.0 | 24.1 | 23.8 | 22.8 |
| Specific Conductivity (μS/cm) | 370.0 | 320.0 | 345.00 | - | 304.68 | 320.77 | 377.01 | 362.30 | 367.50 | 385.83 | 330.25 | 371.31 |
| pH | 8.5 | 9.1 | 8.8 | - | 8.4 | 9.6 | 9.5 | 8.8 | 8.9 | 8.7 | 8.6 | 8.2 |
| I (Ionic Strength ?) | 0.0648 | 0.0560 | 0.0604 | - | 0.0533 | 0.0561 | 0.0660 | 0.0634 | 0.0643 | 0.0675 | 0.0578 | 0.0650 |
| Dissolved Inorganic Carbon (mM) | 3.21 | 2.35 | 2.78 | - | 2.55 | 2.19 | 2.74 | 3.03 | 1.99 | 2.33 | 2.50 | 2.95 |
| pCO2 (μatm) | 466 | 74 | 270.3 | - | 806.3 | 33.1 | 81.3 | 327.7 | 276.2 | 306.1 | 348.9 | 3245.5 |
| Equilibrium CO2 | 12.87 | 13.24 | 13.05 | - | 13.22 | 13.38 | 12.28 | 12.95 | 13.46 | 12.99 | 13.44 | 13.55 |
| CO2 (μM) | 16.22 | 2.65 | 9.44 | - | 28.51 | 1.07 | 2.82 | 11.77 | 10.67 | 10.59 | 13.19 | 116.22 |
| Δ CO2 from Equilibrium | 3.352 | -10.581 | -3.61 | - | 15.29 | -12.31 | -9.46 | -1.18 | -2.79 | -2.41 | -0.25 | 102.68 |