Climate Change in the Northeast: What Might It Mean to Water Quality Management?

Seasons are becoming more variable. Reservoirs of the Northeast are behaving more like monomictic lakes and reservoirs in response to mild winters. In large and deep reservoirs, timing of phytoplankton seasonal succession is altered, stratification prolonged, anoxic factor and internal nutrient load...

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Bibliographic Details
Published inJournal of the New England Water Works Association Vol. 132; no. 4; p. 236
Main Authors Kortmann, Robert W, Cummins, Elizabeth
Format Journal Article
LanguageEnglish
Published Boston New England Water Works Association 01.12.2018
Subjects
2-Methylisoborneol
Aeration
Anoxia
Aquatic plants
Benthos
Carbon dioxide
Climate change
Cold
Cyanobacteria
Density stratification
Dimictic lakes
Ecological succession
Geosmin
Heat
Lakes
Limnology
Littoral environments
Macrophytes
Manganese
Mild winters
Mineral nutrients
Nutrient concentrations
Nutrient loading
Oceanography
Phytoplankton
Plankton
Pollution load
Precipitation
Quality management
Raw water
Reservoirs
Respiration
Seasons
Stratification
Surface water
Total organic carbon
Turbidity
Water management
Water quality
Water quality management
Water temperature
Water treatment
Water utilities
Winter
Working groups
United Kingdom > UK
United States > US
Connecticut
England
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Summary:Seasons are becoming more variable. Reservoirs of the Northeast are behaving more like monomictic lakes and reservoirs in response to mild winters. In large and deep reservoirs, timing of phytoplankton seasonal succession is altered, stratification prolonged, anoxic factor and internal nutrient loading increased. Treatment plants experience increased raw water concentrations of geosmin, MIB, Fe, Mn, turbidity, TOC, UV254, and DBP precursors. In smaller shallow reservoirs early growth of littoral macrophytes or benthic cyanobacteria can result. Applying Growing Degree Days (GDD) can help anticipate source water changes, and help utilities respond with management strategies including: seasonal artificial circulation, scheduling of reservoir sources or intakes, aeration techniques, and reservoir treatments.
ISSN:0028-4939