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Welland,Ontario Assessing Climate Change Risk to Stormwater and Wastewater Infrastructure
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Outline
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Welland,Ontario Assessing Climate Change Risk to Stormwater and - - PowerPoint PPT Presentation
Welland,Ontario Assessing Climate Change Risk to Stormwater and - - PowerPoint PPT Presentation
Welland,Ontario Assessing Climate Change Risk to Stormwater and Wastewater Infrastructure Ben Harding, AMEC (Boulder, CO) Peter Nimmrichter, AMEC (Mississauga, ON) Great Lakes Mayors Conference June 16, 2011 1 Outline
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Project Overview Who?
Niagara Water Strategy
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Project Overview Where?
ONTARIO
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NEW YORK City of Welland Urban Boundary (approximate)
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Project Overview How? – The PIEVC Protocol
Scoping study completed in March 2007 (Protocol v1) Four infrastructure categories
– buildings – roads and associated structures
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– roads and associated structures – stormwater and wastewater systems – water resources
Sampling strategy completed 1st national assessment Current Protocol v9 (April 2009)
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Infrastructure of interest? Do we have data? Loads and impacts?
Project Overview How? – The PIEVC Protocol
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More analyses required? Recommendations
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Project Overview How? – The PIEVC Protocol
Infrastructure Details Site Setting
Step 1 – Project Definition
7 Site Setting Climate Data
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Project Overview How? – The PIEVC Protocol
Judgment on Significance Judgment on Likelihood
Step 2 – Data Gathering
8 Judgment on Likelihood Judgment on Response Judgment on Uncertainty
- IDF analyses
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Project Overview How? – The PIEVC Protocol
Step 3 – Risk Assessment
Judgement on Significance Judgement on Likelihood 9 Judgement on Likelihood Judgement on Response Judgement on Uncertainty
* Vulnerability assessment workshop
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Step 4 – Engineering Analysis
Existing Load Projected Climate Change Load
Project Overview How? – The PIEVC Protocol
10 Projected Climate Change Load Projected Loads from other changes Existing Capacity Projected Additional Capacity
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Step 5 – Recommendations
Project Overview How? – The PIEVC Protocol
11 Remedial Action Mgmt Action No Action Additional Study Required
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Project Overview What? – The Infrastructure
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Stormwater Collection System Wastewater / Combined Collection and Treatment System
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Project Overview What? – A Changing Climate
The Long List of Variables:
- High/Low Temperature
- Snow Accumulation
- Heat & Cold Waves
- Blowing Snow/Blizzard
- Extreme Diurnal Temperature Variability
- Lightning
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