Adapting to Climate Change The Water Sector Robert Morgan, Ph.D., P.E. Beaver Water District.
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Transcript of Adapting to Climate Change The Water Sector Robert Morgan, Ph.D., P.E. Beaver Water District.
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Adapting to Climate Change
The Water SectorRobert Morgan, Ph.D., P.E.
Beaver Water District
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Water Sector
Cost for Adapting to Climate Change through 2050
Drinking Water: $325 - $692 Billion
Wastewater: $ 123 – $252 Billion
Total Water Sector: $ 448 - $944 Billion
National Association of Clean Water Agencies, 2009
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Warmer Temperature, more Evaporation
Higher Absolute Humidity
Frequent Extreme Precipitation
Longer Dry Spells
Changing Hydrologic Cycle
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Shift toward Winter Drier Summers and
Falls
Seasonal Pattern of Precipitation
National Academies Press
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More Frequent Extreme Events
National Academies Press
Figure ES-1: Extreme Downpours Have Become More Frequent Across Much of the United States
The biggest rainstorms and snowstorms are getting bigger
Environment America
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Water Availability
National Academy of Sciences
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Frequent and Longer Droughts
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ImpactHigher Temperature
Water
Increased Domestic Water Use
Increased Irrigation Demand Water Quality
Source Water Algae Taste and Odor Toxins
Distribution System – Disinfection Byproducts
Wastewater
Water Quality Receiving Stream DO Power Costs
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ImpactFrequent Extreme Events
Water
Water Quality Turbidity and Sediment Phosphorus Load
Treatability Flooding
Service Outage Water Line Breaks
Wastewater
Infiltration/Inflow Hydraulic Load Flooding Sewer Line Breaks
Other
Stream Erosion Transportation Flooding Hydrologic Science
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ImpactReduced Water Availability
Water
Adequacy of Source Increased Pumping Costs Interstate/city Conflicts Competing Uses
Domestic/Agriculture/Industry/ Recreation/Ecosystem
Potential Mandatory Conservation
Wastewater
Lack of Dilution in Receiving Stream
Higher Cost of Treatment
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Reduced Water Supply Increased Irrigation Demand
Declining Groundwater Minimum Streamflow
Increased Domestic Water Demand Potential Mandatory Water Conservation Environmental Flows
ImpactLonger Drought
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Adapting to Climate ChangeDrinking Water
Long-Term
Source Development Source Water Protection Additional Treatment
Facilities
Short-Term
Flood Proofing Identify Critical
Infrastructure Risk Assessment
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Adapting to Climate ChangeWastewater
Long-Term
Flow Reduction Program Infiltration/inflow
management Wet Weather Storage Increased Treatment
Capacity Effluent cooling Reuse and Recycling
Short-Term
Identify Critical Infrastructure Risk assessment
Flood proofing Illicit Discharge Detection Storm Sewer disconnects
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No-Regrets Planning Total Water Management
Consider the Resource Holistically Source, Treatment, Waste, Storm, Environmental
Conservation, Reuse and Recycle Green Infrastructure
Utilize Ecosystem Services Rain Gardens, Wetlands, Swales, Green Roofs,
Rainwater Harvesting, Permeable Pavement Cooperative Emergency Response (ARWARN) Continue to Refine Research
Adapting to Climate ChangePublic Policy
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Summary
More Frequent Floods but Reduced Water Availability
Water Quality Issues Cost to Adapt is Significant Top-down and Bottom-up Strategies
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