AECOM Report B&W - N - City of Guelph

Table C7: Comparison of Downgradient Monitors in Buffer Land Boundary to Guideline B7 Criteria for 2008Parameter Chloride Sodium Sulphate Copper Iron Manganese Zinc Boron Cadmium Chromium Lead Nitrate NitriteODWS 250 200 500 1 0.30 0.05 5 5 0.005 0.05 0.01 10 1BackgroundGuideline B7 Criteria29.4 14.7 36.43 0.49 0.02 0.01 0.0260.010.11 0.01140 107 268 0.49 0.03 2.50 1.270.132.59 0.262-I 29-Apr-08 175 64.0 75.0 6 0.081 0.01 0.210< 0.01< 0.10 < 0.0117-Jun-08 124.0 50.0 77.0 3.2 0.078 0.01 0.210< 0.01< 0.10 < 0.0108-Sep-08 54.0 30.0 83.0 4.8 0.076 0.01 0.190< 0.01< 0.10 < 0.0124-Nov-08 45.0 28.0 98.0 4.7 0.075 0.01 0.190< 0.01< 0.10 < 0.012-II 29-Apr-08 4.0 27.0 21.0 < 0.10 0.03 0.13 0.067< 0.011.10 0.0308-Sep-08 3.0 7.8 25.0 0.28 0.052 0.21 0.081< 0.010.60 < 0.019-I 30-Apr-08 35.0 26.0 97.0 < 0.10 0.13 0.42 0.250< 0.01< 0.10 < 0.0111-Sep-08 47.0 29.0 92.0 < 0.10 0.23 0.49 0.280< 0.01< 0.10 < 0.0110-II 01-May-08 1030 300 23.0 0.25 0.35 0.02 0.024< 0.010.50 0.0117-Jun-08 232 27.0 21.0 < 0.10 < 0.00 0.02 0.040< 0.010.20 < 0.0109-Sep-08 834 280 11.0 18 0.27 < 0.01 0.033< 0.01< 0.10 < 0.0125-Nov-08 1030 290 14.0 2.1 0.27 < 0.01 0.036< 0.010.20 0.0113-III 02-May-08 4.0 23.0 6.0 < 0.10 0.00 < 0.01 0.091< 0.010.20 < 0.0117-Jun-08 1.0 25.0 4.0 < 0.10 < 0.00 < 0.01 0.089< 0.010.20 < 0.0109-Sep-08 1.0 24.0 2.0 < 0.10 0.00 < 0.01 0.083< 0.010.20 < 0.0125-Nov-08 2.0 23.0 < 1.0 < 0.10 0.01 < 0.01 0.078< 0.010.20 < 0.0113-IV 02-May-08 2380 1200 30.0 12 0.27 < 0.01 0.026< 0.01< 0.10 < 0.0117-Jun-08 2570 1300 60.0 16 0.41 < 0.01 0.022< 0.01< 0.10 < 0.0109-Sep-08 2860 1900 99.0 22 0.58 < 0.03 0.078< 0.03< 0.10 < 0.0125-Nov-08 4620 1900 81.0 13 0.52 < 0.01 0.034< 0.00< 0.10 < 0.0113-V 02-May-08 85.0 54.0 19.0 < 0.10 0.14 0.07 0.029< 0.01< 0.10 < 0.0117-Jun-08 128.0 62.0 6.0 0.36 0.1 0.07 0.038< 0.01< 0.10 < 0.0109-Sep-08 608 330 221.0 < 0.10 0.094 0.13 0.058< 0.011.10 0.0225-Nov-08 517 200 198.0 < 0.10 0.01 0.08 0.020< 0.01< 0.10 < 0.0114-II 01-May-08 440 130 88.0 < 0.10 0.11 0.02 0.230< 0.010.20 < 0.0117-Jun-08 403 160 87.0 0.13 0.26 0.03 0.210< 0.01< 0.10 0.0410-Sep-08 328 120 78.0 1.8 0.25 0.02 0.240< 0.01< 0.10 < 0.0125-Nov-08 736 170 81.0 0.59 0.2 0.01 0.220< 0.010.20 < 0.0114-III 01-May-08 22.0 28.0 8.0 3.4 1.4 0.01 0.110< 0.01< 0.10 < 0.0120-Jun-0810-Sep-0825-Nov-08 28.0 38.0 4.0 11 0.7 0.01 0.150< 0.01< 0.10 < 0.0115-III 29-Apr-08 10.0 48.0 10.0 < 0.10 0.01 < 0.01 0.110< 0.01< 0.10 < 0.0117-Jun-08 10.0 51.0 11.0 < 0.10 0.01 < 0.01 0.098< 0.010.10 0.01Average concentration in 2008 from monitors 4-II,19-II and 19-IV used in comparison to Guideline B7 valuesConcentrations that exceed the RUG are denoted Bolding and UnderlinedAll concentrations are in mg/L(11 RPT reasonable use -Ba/Eastvw8/80-131/Apr-09)Page 1 of 2