| Report Year: 2009 |
| Lake Smith, Kossuth County |
| Carbon Balance Table |
| Parameter | 6/4/2009 | 7/8/2009 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 |
| Alkalinity as CaCO3 (mg/L) | 153 | 133 | 143.0 | - | - | - | 157.8 | 127.8 | 110.2 | 151.0 | 145.7 | 145.0 |
| Dissolved Organic Carbon (mM) | 0.87 | 0.69 | 0.78 | - | - | - | 0.72 | 1.26 | 1.11 | 1.16 | - | - |
| Temperature (oC) | 20.2 | 25.2 | 22.7 | - | - | - | 23.6 | 22.3 | 20.9 | 21.0 | 23.2 | 24.3 |
| Specific Conductivity (μS/cm) | 360.0 | 320.0 | 340.00 | - | - | - | 476.10 | 457.38 | 465.84 | 477.28 | 515.39 | 492.30 |
| pH | 9.1 | 9.1 | 9.1 | - | - | - | 8.6 | 8.6 | 9.4 | 8.6 | 8.5 | 8.6 |
| I (Ionic Strength ?) | 0.0630 | 0.0560 | 0.0595 | - | - | - | 0.0833 | 0.0800 | 0.0815 | 0.0835 | 0.0902 | 0.0862 |
| Dissolved Inorganic Carbon (mM) | 2.75 | 2.35 | 2.55 | - | - | - | 3.03 | 2.43 | 1.84 | 2.88 | 2.82 | 2.76 |
| pCO2 (μatm) | 87 | 70 | 78.9 | - | - | - | 401.3 | 294.7 | 46.0 | 353.7 | 425.8 | 388.4 |
| Equilibrium CO2 | 14.58 | 12.56 | 13.57 | - | - | - | 13.35 | 13.78 | 14.39 | 14.39 | 13.37 | 12.98 |
| CO2 (μM) | 3.44 | 2.39 | 2.92 | - | - | - | 13.71 | 11.45 | 2.03 | 12.99 | 15.59 | 14.75 |
| Δ CO2 from Equilibrium | -11.138 | -10.171 | -10.65 | - | - | - | 0.36 | -2.34 | -12.36 | -1.40 | 2.22 | 1.77 |