| Report Year: 2009 |
| Lake Macbride, Johnson County |
| Carbon Balance Table |
| Parameter | 6/22/2009 | 7/27/2009 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 |
| Alkalinity as CaCO3 (mg/L) | 129 | 118 | 123.5 | - | 122.3 | 104.7 | 117.0 | 84.7 | 74.8 | 113.3 | 145.3 | 106.0 |
| Dissolved Organic Carbon (mM) | 0.33 | 0.31 | 0.32 | - | 0.34 | 0.35 | 0.56 | 0.26 | 0.55 | 0.57 | - | - |
| Temperature (oC) | 22.6 | 22.0 | 22.3 | - | 24.4 | 24.1 | 26.4 | 23.4 | 24.4 | 25.6 | 23.7 | 25.1 |
| Specific Conductivity (μS/cm) | 370.0 | 370.0 | 370.00 | - | 341.52 | 354.72 | 343.54 | 353.56 | 351.29 | 440.83 | 367.54 | 331.79 |
| pH | 8.3 | 8.1 | 8.2 | - | 8.6 | 8.8 | 9.0 | 8.4 | 8.7 | 8.4 | 8.8 | 8.7 |
| I (Ionic Strength ?) | 0.0648 | 0.0648 | 0.0648 | - | 0.0598 | 0.0621 | 0.0601 | 0.0619 | 0.0586 | 0.0771 | 0.0643 | 0.0581 |
| Dissolved Inorganic Carbon (mM) | 2.54 | 2.35 | 2.45 | - | 2.33 | 1.92 | 2.09 | 1.66 | 1.41 | 2.20 | 2.75 | 2.00 |
| pCO2 (μatm) | 548 | 788 | 668.0 | - | 391.3 | 190.6 | 258.3 | 574.7 | 225.8 | 340.0 | 265.5 | 155.9 |
| Equilibrium CO2 | 13.55 | 13.79 | 13.67 | - | 12.89 | 13.00 | 12.20 | 13.25 | 12.14 | 12.45 | 13.46 | 12.60 |
| CO2 (μM) | 20.09 | 29.35 | 24.72 | - | 13.94 | 6.64 | 9.29 | 21.23 | 7.46 | 11.45 | 9.91 | 5.31 |
| Δ CO2 from Equilibrium | 6.539 | 15.562 | 11.05 | - | 1.05 | -6.37 | -2.91 | 7.97 | -4.68 | -1.00 | -3.54 | -7.29 |