| Report Year: 2009 |
| Lake Icaria, Adams County |
| Carbon Balance Table |
| Parameter | 7/14/2009 | 6/9/2009 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 |
| Alkalinity as CaCO3 (mg/L) | 109 | 121 | 115.0 | - | - | - | 131.5 | 117.0 | 86.0 | 114.3 | 87.7 | 125.0 |
| Dissolved Organic Carbon (mM) | 0.41 | 0.45 | 0.43 | - | - | - | 0.49 | 0.51 | 0.82 | 0.66 | - | - |
| Temperature (oC) | 24.6 | 21.3 | 22.9 | - | - | - | 24.1 | 22.2 | 23.5 | 23.3 | 23.1 | 25.5 |
| Specific Conductivity (μS/cm) | 250.0 | 280.0 | 265.00 | - | - | - | 340.47 | 294.54 | 293.53 | 292.52 | 239.05 | 281.01 |
| pH | 8.4 | 8.7 | 8.5 | - | - | - | 8.3 | 8.4 | 8.5 | 8.4 | 8.4 | 8.4 |
| I (Ionic Strength ?) | 0.0438 | 0.0490 | 0.0464 | - | - | - | 0.0596 | 0.0515 | 0.0514 | 0.0523 | 0.0418 | 0.0492 |
| Dissolved Inorganic Carbon (mM) | 2.14 | 2.31 | 2.23 | - | - | - | 2.60 | 2.30 | 1.66 | 2.21 | 1.63 | 2.44 |
| pCO2 (μatm) | 427 | 193 | 310.1 | - | - | - | 636.8 | 455.4 | 265.3 | 397.0 | 900.4 | 619.8 |
| Equilibrium CO2 | 12.81 | 14.12 | 13.47 | - | - | - | 13.06 | 13.72 | 13.27 | 12.21 | 13.47 | 12.50 |
| CO2 (μM) | 14.79 | 7.37 | 11.08 | - | - | - | 22.55 | 16.79 | 9.15 | 13.19 | 34.65 | 22.13 |
| Δ CO2 from Equilibrium | 1.975 | -6.749 | -2.39 | - | - | - | 9.50 | 3.07 | -4.12 | 0.98 | 21.17 | 9.63 |