| Report Year: 2009 |
| Manteno Park Pond, Shelby County |
| Carbon Balance Table |
| Parameter | 7/14/2009 | 6/10/2009 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 |
| Alkalinity as CaCO3 (mg/L) | 191 | 200 | 195.5 | - | - | - | 188.0 | 162.2 | 124.3 | 183.0 | 187.0 | 165.3 |
| Dissolved Organic Carbon (mM) | 0.45 | 0.49 | 0.47 | - | - | - | 0.32 | 0.48 | 0.80 | 0.86 | - | - |
| Temperature (oC) | 24.6 | 19.6 | 22.1 | - | - | - | 23.7 | 22.7 | 24.0 | 25.7 | 22.3 | 25.3 |
| Specific Conductivity (μS/cm) | 400.0 | 440.0 | 420.00 | - | - | - | 408.16 | 386.48 | 377.17 | 439.15 | 392.13 | 360.83 |
| pH | 7.8 | 8.2 | 8.0 | - | - | - | 8.3 | 8.3 | 8.7 | 8.4 | 8.3 | 8.8 |
| I (Ionic Strength ?) | 0.0700 | 0.0770 | 0.0735 | - | - | - | 0.0714 | 0.0676 | 0.0660 | 0.0769 | 0.0686 | 0.0631 |
| Dissolved Inorganic Carbon (mM) | 3.87 | 3.98 | 3.93 | - | - | - | 3.68 | 3.20 | 2.35 | 3.58 | 3.71 | 3.10 |
| pCO2 (μatm) | 2461 | 1159 | 1810.0 | - | - | - | 867.2 | 685.6 | 224.2 | 668.5 | 1265.8 | 231.6 |
| Equilibrium CO2 | 12.79 | 14.85 | 13.82 | - | - | - | 13.18 | 13.56 | 13.08 | 12.43 | 13.83 | 12.57 |
| CO2 (μM) | 85.08 | 46.52 | 65.80 | - | - | - | 31.36 | 25.20 | 7.59 | 22.65 | 51.77 | 8.04 |
| Δ CO2 from Equilibrium | 72.283 | 31.672 | 51.98 | - | - | - | 18.17 | 11.64 | -5.49 | 10.22 | 37.94 | -4.54 |