Presentation on theme: "Evaluation of Pond Water Quality Sarah Kostick. Potential Problem High levels of phosphorus in pond environments can cause excessive algae blooms which."— Presentation transcript:
Potential Problem High levels of phosphorus in pond environments can cause excessive algae blooms which result in lowered dissolved oxygen levels and very green ponds (eutrophication)
Goals Determine current levels of phosphorus and nitrates in the Prairie, Iris, Waterfall and Green Heron Ponds Look at historical levels in the Iris and Waterfall Ponds Determine future plan of action
Predictions All ponds will have high levels of phosphorus Highest levels will be in the Prairie pond
Results/Conclusion Location Phosphorus (total) ppm Nitrate ppm Nitrite (ppm) pH Iris Pond0.36<0.02 7.363 Waterfall Pond 0.32<0.02 8.34 Prairie Pond0.47<0.02 6.525 Green Heron Pond 0.28<0.02 7.807 Lake Minnewashta in 2011 was at.021 ppm (21 ppb) Critical Eutrophication Value is 0.06 ppm (60 ppb)
Recommendations Soil samples of flower beds, gardens and turf grass near ponds should be taken Only yard waste and ammonium composts as well as non phosphorus fertilizers should continued to be applied More shoreline buffers should be added at the Prairie pond to prevent sediment runoff Pond samples should be taken regularly Phosphorus reducing, water clearing products such as Bio Boost Phosphate Cleanser available at Aquatic Biologists Inc. could be researched
Works Cited Aquatic Biologists, Inc. “Bio Boost Phosphate Remover”. 2013. Web. http://store.aquaticbiologists.com/bio-boost-phosphate-cleanser- bbpc/ Environmental Indicators Initiative. "Indicator Factsheet Sustaining Minnesota's Lakes: Phosphorus Concentration." (n.d.): n. pag. Print. Metropolitan Council. "2011 Study of the Water Quality of 169 Metropolitan Area Lakes." Metropolitan Council, 2011. Web.. Miller, Dan. Assesment of Compost and Fertilization Practices at the Minnesota Landscape Arboretum. Reviewers. Carl Rosen, Les Everett, and Mary Meyer. N.p., 2008. Web. "Water Quality: Nutrients in Aquatic Environments: Phosphorus (indicator Status: Agreed)." (n.d.)
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