| Report Year: 2009 |
| Kent Park Lake, Johnson County |
| Carbon Balance Table |
| Parameter | 7/27/2009 | 6/22/2009 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 |
| Alkalinity as CaCO3 (mg/L) | 139 | 148 | 143.5 | - | 151.0 | 146.3 | 153.3 | 99.3 | 109.0 | 151.8 | 145.7 | 152.3 |
| Dissolved Organic Carbon (mM) | 0.42 | 0.37 | 0.39 | - | 0.42 | 0.47 | 0.50 | 0.47 | 0.66 | 0.68 | - | - |
| Temperature (oC) | 25.0 | 25.7 | 25.3 | - | 26.4 | 26.1 | 27.1 | 24.7 | 25.5 | 26.5 | 27.1 | 25.4 |
| Specific Conductivity (μS/cm) | 310.0 | 310.0 | 310.00 | - | 293.88 | 304.58 | 323.39 | 306.74 | 330.95 | 504.25 | 327.58 | 330.05 |
| pH | 7.7 | 8.5 | 8.1 | - | 8.4 | 8.8 | 9.1 | 8.6 | 8.7 | 8.4 | 8.9 | 8.5 |
| I (Ionic Strength ?) | 0.0543 | 0.0543 | 0.0543 | - | 0.0540 | 0.0533 | 0.0566 | 0.0537 | 0.0579 | 0.0882 | 0.0573 | 0.0578 |
| Dissolved Inorganic Carbon (mM) | 2.84 | 2.87 | 2.86 | - | 2.99 | 2.68 | 2.69 | 1.93 | 2.08 | 2.96 | 2.66 | 2.96 |
| pCO2 (μatm) | 2366 | 396 | 1380.9 | - | 895.0 | 278.5 | 204.4 | 389.1 | 213.6 | 571.5 | 139.6 | 574.4 |
| Equilibrium CO2 | 12.65 | 12.41 | 12.53 | - | 12.44 | 12.30 | 11.95 | 12.77 | 12.49 | 12.13 | 12.03 | 12.49 |
| CO2 (μM) | 80.86 | 13.28 | 47.07 | - | 30.17 | 8.90 | 7.09 | 14.01 | 7.12 | 18.55 | 4.44 | 19.52 |
| Δ CO2 from Equilibrium | 68.218 | 0.870 | 34.54 | - | 17.73 | -3.40 | -4.86 | 1.23 | -5.37 | 6.43 | -7.59 | 7.03 |