Variable G1 G2 G3 G4 T1 H1 Average Stdev Average Stdev Average Stdev Average Stdev Average Stdev Average Stdev B 0.04 0.01 0.04 0.01 0.04 0.02 0.04 0.01 0.22 0.11 0.06 0.02 TP 0.12 0.12 0.12 0.11 0.17 0.16 0.11 0.12 2.37 1.29 0.63 0.94 S 16.44 5.34 17.86 5.00 18.32 6.07 15.79 4.08 14.49 11.62 85.01 49.74 K 4.28 1.44 4.82 1.99 5.21 2.34 4.42 1.43 11.02 7.80 16.82 8.51 Na 10.81 1.89 11.24 1.33 12.90 3.62 15.02 3.82 44.83 11.70 29.39 9.74 Mg 6.23 0.99 6.46 0.99 6.80 1.31 6.32 1.02 12.42 1.51 18.97 5.98 Ca 39.17 10.38 40.94 10.99 42.05 11.11 43.01 11.21 57.89 18.50 104.54 37.67 Al 0.94 0.76 0.95 0.78 1.17 1.40 0.96 1.29 0.12 0.11 0.30 0.45 As 0.002 0.002 0.003 0.002 0.003 0.003 0.004 0.003 0.005 0.005 0.004 0.004 Ba 0.103 0.019 0.101 0.015 0.100 0.014 0.103 0.011 0.088 0.025 0.085 0.030 Cd 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 Co 0.000 0.000 0.001 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.001 0.001 Cr 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.000 0.000 0.001 0.001 Cu 0.002 0.001 0.002 0.001 0.002 0.002 0.002 0.001 0.002 0.003 0.001 0.002 Fe 0.680 0.371 0.707 0.400 0.776 0.701 0.636 0.666 0.291 0.173 0.412 0.382 Mn 0.292 0.281 0.267 0.198 0.196 0.106 0.157 0.089 0.128 0.131 1.122 1.278 Ni 0.006 0.002 0.006 0.002 0.006 0.002 0.005 0.002 0.003 0.002 0.006 0.003 Pb 0.002 0.002 0.001 0.002 0.003 0.006 0.003 0.004 0.000 0.001 0.001 0.001 Sr 0.135 0.027 0.137 0.024 0.141 0.027 0.135 0.024 0.213 0.027 0.299 0.062 V 0.001 0.001 0.001 0.001 0.001 0.002 0.001 0.002 0.001 0.001 0.001 0.002 Hg 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Zn 0.008 0.005 0.006 0.003 0.006 0.004 0.005 0.004 0.006 0.004 0.004 0.004

Table 2b: Summary data of elements concentrations (in mg/l except EC: μS/cm and pH: no unit) in Gans creek (G1, G2, G3, G4), domestic sewage lagoon overflow (T1) and confined animal lot lagoon overflow (H1) samples for the sampling period May 2009-April 2010.