| Report Year: 2009 |
| Lower Gar Lake, Dickinson County |
| Carbon Balance Table |
| Parameter | 7/7/2009 | 6/3/2009 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 |
| Alkalinity as CaCO3 (mg/L) | 214 | 223 | 218.5 | - | 209.8 | 210.8 | 204.0 | 196.7 | 164.3 | 226.0 | 144.7 | 200.7 |
| Dissolved Organic Carbon (mM) | 0.58 | 0.58 | 0.58 | - | 0.56 | 0.55 | 0.42 | 0.60 | 0.87 | 0.92 | - | - |
| Temperature (oC) | 26.1 | 19.5 | 22.8 | - | 23.0 | 24.8 | 20.9 | 22.4 | 21.2 | 19.8 | 23.8 | 24.3 |
| Specific Conductivity (μS/cm) | 500.0 | 490.0 | 495.00 | - | 496.31 | 517.29 | 525.85 | 561.40 | 535.36 | 554.16 | 515.03 | 651.19 |
| pH | 8.4 | 8.5 | 8.5 | - | 8.1 | 8.6 | 8.6 | 8.5 | 8.5 | 8.5 | 8.4 | 8.5 |
| I (Ionic Strength ?) | 0.0875 | 0.0858 | 0.0866 | - | 0.0869 | 0.0905 | 0.0931 | 0.0982 | 0.0937 | 0.0970 | 0.0901 | 0.1140 |
| Dissolved Inorganic Carbon (mM) | 4.18 | 4.32 | 4.25 | - | 4.19 | 4.02 | 3.91 | 3.78 | 3.17 | 4.40 | 2.81 | 3.86 |
| pCO2 (μatm) | 788 | 524 | 655.7 | - | 1564.2 | 657.6 | 519.5 | 465.1 | 442.9 | 662.4 | 427.1 | 504.5 |
| Equilibrium CO2 | 12.27 | 14.91 | 13.59 | - | 13.51 | 12.75 | 13.90 | 13.77 | 14.30 | 14.91 | 13.16 | 12.97 |
| CO2 (μM) | 26.12 | 21.11 | 23.61 | - | 58.20 | 21.69 | 18.66 | 17.19 | 17.33 | 28.01 | 15.26 | 17.60 |
| Δ CO2 from Equilibrium | 13.847 | 6.201 | 10.02 | - | 44.69 | 8.94 | 4.76 | 3.42 | 3.03 | 13.10 | 2.09 | 4.62 |