2 nd public meeting - options march 30, 2010. agenda overview of water issues what is a wirp? ...
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2nd Public Meeting - OptionsMarch 30, 2010
Agenda Overview of Water Issues What is a WIRP? Purpose of WIRP Evaluation Process WIRP Objectives Options Brainstorming Initial Categories of Options Closing
Sources of Water SupplyLocal Groundwater 35%
Imported Waterfrom MWD* 65%
* MWD - Metropolitan Water District
Colorado RiverColorado River AqueductAqueduct
State Water State Water ProjectProject
LocalLocal
Overview of Water Issues
Other Imported Water IssuesSource Water QualityMWD Water Costs
• In 2009, full service water rates increased 15% (3 times the previousyear’s increase)
• Over next five years, MWD expects annual double-digit rate increases
• Bay-Delta solution is expected to costbillions for MWD alone
Climate Change
• California DWR estimates that future climate change could reduce SWP supplies statewide by as much as 15% by 2030
Groundwater Pumped from the
Raymond Basin Contamination issues Declining
groundwater levels Reduced pumping
rights by 20%
Water Integrated Resources PlanWater Integrated Resources Plan
9
IRP Definition“Comprehensive approach to evaluating supply-side & demand-side resource alternatives with respect to explicitly defined & often conflicting objectives.” AWWA, 1994
Main features: Open and participatory decision process Planning scenarios that consider changing
conditions Consideration of institutional context
IRP’s in relation to other plans
Strategic Planning (IRP’s; conceptual
analysis; policy-level planning;
examining trade-off among resource
alternatives)
Master Planning
(Capital Improvement Plans, detailed facility studies,
operational analysis)
PrelimDesign
(Environmental Impact Review,
Project Implementation
)
UWMP(Urban Water
Management Plan required by State
every 5 years; compares demand and supply only)
Mission StatementThe Pasadena Water Integrated Resources Plan will provide an achievable, long-term strategy to meet current and future water needs. The goals of the WIRP are to sustainably and cost-effectively address local and regional water supply and demand issues, reflect community values, and adapt to changing conditions.
Define Planning Objectives & Performance
Measures
RefineAnalysis
PortfolioPortfolio AnalysesAnalyses
Raw PerformanceScore Card
RankRankPortfoliosPortfolios
Supply & Demand Options
(building blocks)
Build Portfolios(using themes)
WIRP Objectives Provide a reliable water supply Maintain affordability, while addressing fairness and equity Ensure safe, high-quality drinking water Protect source waters and the environment Protect cultural and recreational resources Maximize efficiency of water use Maintain quality of life and positive economic climate Reduce risk and maximize opportunities Ensure public safety Reduce energy footprint for water operations
Status Quo Approach
Existing Groundwater
Imported Water
Wat
er S
uppl
y
Planning Horizon
How vulnerable to climate change, what impact on
water quality, how much does this
cost
Growth Neutral
Existing Groundwater
Imported Water
New Conservation
New Local Supplies
Existing Groundwater
New Local Supply
Imported Water
New Conservation
Ideas from 1st Public Meeting Reduce percentage or portion of water used for landscaping – currently 50-70 overall Incentivize water conservation with energy nexus Real time notification to customers on water usage Have landlords provide water efficient fixtures, motivate/implement tenant conservation Educate people about irrigation and runoff – soil types/swales, etc. Encourage more efficient irrigation, e.g. drip Convert turf areas Partner with large educational institutions, landscape changes/public education
opportunity – new paradigm Landscaping contests, free landscaping to winners, etc. Explore integration of reclaimed water into City’s supply Capture what we throw away – sinks, showers, etc. Look at greywater systems Evaluate water catchments for rainwater, e.g. natural depressions Identify areas that are more suitable for groundwater recharge – consider zoning tools to
protect and maximize recharge Incentivize/rebates for redesign of sites to capture more runoff Reduce imperviousness, reasonable but meaningful X % per year Encourage new
development to store runoff on site Partner with other resource agencies to develop options that might otherwise be too
expensive, e.g. solar for desal
Recycled
Conservation/Demand Management
Graywater
On-site stormwatercapture/ Porous pavement
Ocean Desalination Partnership
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