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The Role Of Al And Fe In Controlling Internal P Loading, Lake Auburn, Me, Heather Doolittle
The Role Of Al And Fe In Controlling Internal P Loading, Lake Auburn, Me, Heather Doolittle
Electronic Theses and Dissertations
Lake Auburn, Maine, U.S.A. is a historically oligotrophic lake serving as the primary drinking water source to a population of 40,000. In 2011 and 2012 the local water district observed decreasing water quality, evidenced by increasing epilimnetic total phosphorus (P) concentrations, increasing lake turbidity and the appearance of cyanobacteria. These conditions are especially concerning due to Lake Auburn’s exemption from filtration by the EPA. The decline in water quality has been linked to widespread hypolimnetic summer anoxia, causing internal P loading from the lake sediment. This study evaluated the chemical P speciation in hypolimnetic sediment from Lake Auburn following the …