AECOM Report B&W - N - City of Guelph

C4: Surface Water Field MeasurementsStation Date Sample Event Field ParametersEstimatedCommentsCond pH Temp DO Stream VelocityuS C mg/L (m/s if applicable)SW 112-Aug-02 August Dry No rain for 10 days, no surface water to sample25-Oct-02 October Dry No more than 2 dry days in a row, no samples taken23-Dec-02 Fall Rain Rains for 2 days, still not enough water to sample18-Mar-03 Spring Freshet 306 7.40 5 8.49 (sg=0.230)Good flow, visible TSS28-Apr-03 April Dry No sample taken - Could not get 5 days of no rain26-May-03 Spring Rain No sample taken - Although there was rain, no water to sample18-Jun-03 June Dry No sample taken - Could not get 5 days of no rain06-Aug-03 Summer Rain 649 7.90 15 7.09 (sg=0.100)Water but no flow, clear26-Aug-03 August Dry No sample taken - Could not get 5 days of no rain24-Oct-03 October Dry No sample taken - Could not get 5 days of no rain19-Nov-03 Fall Rain 483 7.90 10.8 8.14 (sg=0.300)Good Flow10-Mar-04 Spring Freshet 649 7.30 5.2 7.77 (sg=0.210)Low flow22-Apr-04 Spring Rain No sample taken - Although there was rain, no water to sample27-May-04 April Dry 750 7.80 16.5 3.63 (sg=0.750) Grate blocked with plastic. Suspect beaver dam inside culvert. Some flow.28-Jun-04 June Dry No sample taken - Could not get 5 days of dry conditions due to significantrain all month17-Aug-04 August Dry 647 7.80 15.2 9.52 (sg=0.590) Some flow, algae observed on surface, some flooding due to gravel inculvert.19-Oct-04 Summer Rain 981 8.20 6.3 8.83 (sg=0.530) Very little flow, algae growth, clear. Silt back up is around 0.6m deep.28-Oct-04 October Dry No sample taken - Could not get 5 days of dry conditions due to significantrain all month08-Dec-04 Fall Rain 540 7.85 8 (sg=0.600)Some flow, clear. Silt accumulation at bottom of culvert (~0.4m).04-Apr-05 Spring Freshet 601 8.27 9.2 6.57 (sg=0.660m)Some flow, Clear. Silt present at mouth of culvert.30-Apr-05 April Dry No sample taken due to rain16-May-05 Spring Rain No sample taken, not enough run-off after rain event on May 16. Very littlerain during rest of month.30-Jun-05 June Dry No samples taken, dry25-Aug-05 August Dry No sample taken, not enough run-off even after rain event earlier in theweek of Aug 25.28-Sep-05 Summer Rain No sample taken, not enough run-off14-Oct-05 October Dry No sample taken, Dry30-Nov-05 Fall Rain No sample taken, not enough run-off24-Apr-06 Spring Freshet 553 7.70 8.1 8.74 (sg=0.660m)Good flow, Clear30-Apr-06 April Dry No Dry Period During Month31-May-06 Spring Rain Rain event early in month, no run-off occuring later in month.09-Jun-06 June Dry Low Water09-Aug-06 August Dry Low Water14-Sep-06 Summer Rain 760 7.50 17.1 4.11 DryVery low flow12-Oct-06 October Dry 606 7.80 11.4 5.73 (sg=0.590m)Good flow13-Dec-06 Fall Rain 488 7.30 6.5 7.5 (sg=0.600m)Good flow, Clear. Silt build up observed.23-Mar-07 Spring Freshet 471 7.40 3.9 6.35 (sg=0.64m)Good Flow, Clear26-Apr-07 April Dry Dry17-May-07 Spring Rain 715 7.60 14.4 4.77 (sg=0.60m)Good Flow, Clear19-Jun-07 June Dry Dry, No water next day after June 9 (9.8mm) and June 19 (22.4mm).10-Aug-07 August Dry Dry, No water next day after largest rain event on August 7 (18mm).26-Sep-07 Summer Rain Dry. No water next day after last rain event on Sept 26 (7.8mm).10-Oct-07 Fall Rain Low Water, 38 mm previous three days.31-Oct-07 October Dry Dry29-Nov-07 Additional Fall 655 6.90 3.5 6.7 (sg=0.49m)Low Flow, clear.09-Apr-08 Spring Freshet 316 7.10 11.6 6.2 (sg=0.68m)Clear. Good flow, some grass/weeds on grate20-Aug-08 Summer Dry Dry. Attempts made after 13.7 mm of rain in last 7 days16-Sep-08 Summer Rain 655 7.40 16.2 3.92 (sg=0.77m)Good Flow. Some rock/silt partially blocking creek18-Dec-08 Fall Rain 597 8.10 4.6 6.2 (sg=0.5m)Clear. Slow flow(2 Rpt Field Data/Eastvw8/80-131/Apr-09) Page 2 of 15