THE STORY OF THE CHEDOKE WATERSHED Monitoring Water Quality Summer 2015 Edward Berkelaar Darren Brouwer Janelle Vander Hout
Nitrogen (N) & Phosphorous (P) THE STORY OF THE CHEDOKE WATERSHED
Nitrogen (N) & Phosphorous (P) www.redeemer.ca/academics/offices- and-departments/our-faculty/edward- berkelaar/ - links to a talk on the history and environmental issues of our use of nitrogen THE STORY OF THE CHEDOKE WATERSHED
Nutrient Atmosphere N 2 Cycling + & NO 3 - Soil NH 4 + P fertilizers THE STORY OF THE CHEDOKE WATERSHED
THE STORY OF THE CHEDOKE WATERSHED
Cootes Paradise & Hamilton Harbor Stressed by high nutrient levels (among many other stressors) THE STORY OF THE CHEDOKE WATERSHED
Water Quality Monitoring Project-based learning in Analytical Chemistry course at Redeemer Monitored multiple sites in Chedoke watershed Fall 2012, Fall 2014, (Fall 2016) Expanded water quality monitoring project last summer (2015) Expanded number of sites Weekly sampling THE STORY OF THE CHEDOKE WATERSHED
Redeemer Water Monitoring Project www.redeemer.ca/academics/offices-and-departments/academic-departments/chemistry- and-environmental-studies-department/research THE STORY OF THE CHEDOKE WATERSHED
THE STORY OF THE CHEDOKE WATERSHED
Water Quality Monitoring At the sample sites… Temperature, pH, dissolved oxygen Estimates of creek depth, width flow In the lab… Nitrate, phosphate, chloride Organic matter (biological oxygen demand) Bacteria ( E. coli and total coliform) THE STORY OF THE CHEDOKE WATERSHED
Phosphate Nitrate + Nitrite Scenic Falls
Phosphate Nitrate + Nitrite Princess Falls
Phosphate Nitrate + Nitrite Mountview Falls
Phosphate Nitrate + Nitrite Sanatorium Falls
Phosphate Nitrate + Nitrite Westcliffe Falls
Phosphate Nitrate + Nitrite Cliffview Falls
Phosphate Nitrate + Nitrite Chedoke Falls
Phosphate Nitrate + Nitrite Princess Point
Rain events Rain events Total Coliform Bacteria E. coli Bacteria Logarithmic scale
Total Coliform Bacteria Phosphate Nitrate + Nitrite E. coli Bacteria
THE STORY OF THE CHEDOKE WATERSHED
Relative Flow Rates Proportional Average Flow Rate of the 7 Waterfalls of the Chedoke Creek Subwatershed 10% Scenic Falls 4% 0% Princess Falls 8% Mountview Falls Sanatorium Falls 8% Westcliffe Falls 3% Cliffview Falls 67% Chedoke Falls ~180 L/s Total = ~ 270 L/s THE STORY OF THE CHEDOKE WATERSHED
Nitrate and Phosphate Load Proportional Nitrate Load Proportional Phosphate Load 2% 4% 3% 1%4% 3% Scenic Falls 5% 8% Princess Falls 0% Mountview Falls 7% 11% Sanatorium Falls Westcliffe Falls 75% Cliffview Falls 77% Chedoke Falls ~ 35 mg/s ~ 60 mg/s Total = ~47 mg/s Total = ~78 mg/s THE STORY OF THE CHEDOKE WATERSHED
Possible signs of improvement? Phosphate Total Coliform Bacteria Nitrate + Nitrite E. coli Bacteria
Conclusions The Chedoke watershed adds N and P to Cootes Paradise Mountview and Cliffview are most contaminated Chedoke (due to its higher flow rate) is the largest source Reducing the amounts of N and P added to this watershed would help improve water quality of Cootes Paradise and Hamilton Harbour Future monitoring is planned to track improvements THE STORY OF THE CHEDOKE WATERSHED
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