Water Source / Supply Study Workshop #1 Joint Shared Service - - PowerPoint PPT Presentation

Water Source / Supply Study Workshop #1

Joint Shared Service Committee May 18th

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Presentation Overview

Water System Review Water Demand Planning

Water Conservation Choices

Supply Source Needs Next Steps

• Sources and Infrastructure
• Water Issues
• Population and Water Use
• Conservation Policy

Options

• Supply Needs to 2041
• New Source Criteria

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Purpose of the Source Supply Study

• Review and prioritize known

sources

– 3 primary sources nearing capacity (7-10 years, subject to usage and growth) – Water enabler of OCP goals – Emerging challenges/opportunities to water supply

• Develop a refined solution set

– Evaluate and identify conservation,

• ptimization and source/supply opportunities

– Phased, incrementable, affordable, sustainable, resilient, flexible approach

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• 80km of transmission pipe + multiple

reservoirs and NWTP

• License capacity > reliable capacity

triggers need to predict long term adequacy

• Portfolio of Sources: individual

strengths offset weaknesses of others

82% 12% 6% CURRENT SHARE OF TOTAL SUPPLY Norrish Cannell Groundwater- Wells

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Source Review Capacity Portfolio

Cannel

Ground- water Wells

Norrish

• High-elevation, good quality source
• Fraction of supply needs; small watershed
• Best for winter demands or summer

demand complement

• Reliable, low-treatment supply all year
• Trending water quality concerns and

higher operational footprint

• Distributed source to address summer

use and demands from growth

• Largest source with advanced treatment
• Turbidity spikes lowers capacity
• Transmission limited by pipe size
• Concerns regarding ability and cost to

expand source storage

Generally adequate capacity under normal conditions however new demands, drought and turbidity spikes may affect supply resiliency in 7 to 10 years. Emerging gap

A go-to source for unplanned events (e.g. turbidity) and planned long- term growth.

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Primary Opportunities for Water Supply

Key Ingredients for Solution Sets

• Importance of an agreed upon direction for water

conservation.

• Opportunity to resolve supply constraints or

Optimization through transmission infrastructure.

• Need to establish a reliable source portfolio

including prioritized expansion.

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Role of Demand Planning

• Prepare: the Commission and its customers

for new initiatives and projects.

• Evaluate: choices to support broader

community goals.

• Engage: test actions for staff to deliver on

political and public aspirations.

• Ensure: compliance with regulations and best

practices.

• Define: capital projects and levels of service.

The use of multiple conservation tools over the 10 years demonstrates the ability of the public to adapt and conserve. But to keep demands lower still will require program enhancements.

50% 24% 12% 14%

Water Use Profile

Residential Commercial Agriculture NRW

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Role of Demand Planning

Point of Expansion today’s demand

Leaks Growth Drought Redundancy Restrictions Conservation Densification Efficiency Residential

52MLD

ICI

24MLD

Agriculture

12MLD

NRW

14MLD

Total

102MLD

Maximum Day Demand

Four-Year Average

MDD

Dictates source + system capacity and focuses conservation targets

Maximum Day Demand

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Commitment to water conservation Use of Sustainable infrastructure

reductions meters + longevity

Development Initiatives

regulations

Plan to 200,000 Strategic densification AgRefresh

Commercial Intensification Low Impact Development 1.5% to 2.0% Growth in All Demands Evolve Urban Areas Rural Enhancements

OCP Alignment

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Water Conservation Current Programs

• Common customer interface
• Strong base of similar methods to build from

Outdoor Water Restrictions Consumption- Based Billing* Low-Flow Fixture Rebates Irrigation Rebates Low-Cost Rain Barrels Leak Kits Landscape Rebates Online Education and Tips Social Marketing and Engagement

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Water Conservation Choices

1. Indoor + Outdoor Water Kits 2. Regulations: Reuse and Efficiency

(Low Impact Development)

3. Tiered + Seasonal Rates

4. Watering Restrictions 5. Irrigation + Landscape Regulations 6. Education 7. Residential Water Use Audits 8. Rebates + Fixture Subsidies 9. Commercial Audits 10. Leak Surveys

Cost-Effectiveness

Implementation Effort

Low

Medium

High

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• Similar to current program
• Rely on education and information
• Select rebates and water kits
• Light tactics for new development

Low Demand Scenario

1.2%

Steady Program with Relaxed Targets Advanced Program that meets Best Practice+ Enhanced Framework that Builds on Strengths

1.0%

Medium-Low Demand Scenario

.70%

Medium Demand Scenario

.35%

High Demand Scenario

Enhanced program with low targets and less programming.

• Expand on High demand scenario
• Greater social marketing
• Apply water-use audits + resources
• More rebates + resources
• Expand on Medium demand

scenario

• Universal meters + tiered rates
• Greatest social marketing
• Reuse + recycling regulations
• Enforce select restrictions
• Wind back some programs
• Metering with Bi-monthly billing
• Secure SG funding for meters
• Social marketing and info resources

Demand Scenarios

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Role of Demand Planning

Reductions in 3x Scenarios New residential: 10% to 18% Existing residential: 10% to 15% ICI: 5% to 15% Agriculture: +75% to +25% NRW: 10% to 25% New residential: 20% to 55% Existing residential: 10% to 35% ICI: 5% to 15% Agriculture: n/a NRW: 10% to 25% Seasonal rates can help to achieve target reductions in about half the time of many

• ther methods

Represent cumulative reductions over 25 years.

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High Demand Scenario Low Demand Scenario

0.7% 1.2%

Medium Demand Scenario

0.35%

25 Year Demand Projections 145MLD 130 MLD 115MLD Water Conservation Investments

• ffset by

deferring Source Expansion

160 MLD Status Quo Med-Low 122 MLD

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Source Review Capacity Portfolio

Cannel

Ground- water Wells

Norrish

• High-elevation, good quality source
• Fraction of supply and small watershed
• Best for winter demands and occasional

summer demand complement

• Reliable, low-treatment supply all year
• Trending water quality concerns and higher
• perational footprint
• Distributed source to address summer use

and demands from growth

• Largest source with advanced treatment
• Turbidity spikes greatly lowers capacity
• Transmission limited by size of main pipe
• Concerns regarding ability and cost to

expand source storage

Strategically prioritize sources using criteria that enhance our portfolio.

• Better adapt to droughts
• More Consistent water quality
• Optimize sources & transmission
• Meet long-term source needs

Solution sets include conservation,

• ptimization and source expansion

to meet future demand projections.

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Criteria to Prioritize Solution Sets Next Steps

Resiliency

• Consistency over time e.g. droughts
• Amount and severity of hazards; risks

Adequacy

• Ability to phase for increasing demands/peaks
• License/regulatory assurances

Serviceability

• Proximity/convenience to system needs
• Operational footprint e.g. effort/management

Strategically prioritize sources using criteria that enhance our portfolio. Affordability

• Relative cost performance of Solution A to B
• Cash flow and rates considerations

Desirability

• Public perception of water quality
• Stakeholder conflicts

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• Apply criteria to sources to prioritize supply

strategy

• Solution sets make best use of conservation,
• ptimization and source supply

Solution Sets: Source Evaluation

Outdoor Water Restrictions Rainny Wells Other Sources Miracle Valley Stave Lake Leak Kits Fraser River Expand Norrish

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Presentation Overview

Water System Review Water Demand Planning

Water Conservation Choices

Supply Source Needs Next Steps

• Sources and Infrastructure
• Water Issues
• Population and Water Use
• Conservation Policy

Options

• Supply Needs to 2041
• New Source Criteria

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Schedule

• Engage with public +

stakeholders Starting May to end

• f the phase
• Evaluate and report on sources

and conservation programs

• Return to JSSC July 13th

– Short list of priority solution sets – Allow for further project activities leading into fall decisions and direction – JSSC September 14th – JSSC November 9th

Engagement Focus Areas

• Core questions related to

– Concerns regarding system elements and services – Preferences and ideas for conservation – Ideas and considerations for solution sets

• Planned Events

– Taste of Abbotsford – May 28th – Old Car Sunday Mission – June 18th

(Tentative)

– Additional Events at Mission Recreation Centre – Date TBD – Canada Day Abbotsford – July 1st – Additional water conservation events through the summer – both communities

• Website Presence

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Questions and Further Discussion