Pasadena Water and Power 1 Water Supply Update and Water Conservation Plan Open Space Commission...

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Pasadena Water and Power

Water Supply Update and Water Conservation Plan

Open Space CommissionJune 8, 2009

Water Summary

• Supply Constraints Here to Stay> No longer “drought-driven”> Perceptions and use must evolve

• New Realities:> Waste prohibition> Conservation> Costly supply alternatives> Price increases

Water SupplyUpdate

Brad Boman

Oct. 1, 2008 to DateOct. 1, 2008 to DateAverage to DateAverage to Date

Los AngelesLos Angeles San DiegoSan Diego 8-Station 8-Station IndexIndex

Mammoth Mammoth SnowpackSnowpack

CR Basin CR Basin SnowpackSnowpack

61%61%

95%95%

88%88%

100%100%

97%*97%*

Mammoth Snowpack as of May 10, 2009

Accumulated PrecipitationAs of May 28, 2009

MWD Water Supply Allocation Level 2

• MWD Enacted Water Supply Allocation Plan (10% Cut) eff. July 1

Imported Water Constraints

• Reduced Colorado River Supply• California Bay Delta Pumping Restrictions• MWD Storage Depletion

Lake MeadLake Powell

Storage Depletion

MWD Storage ResourcesEnd of Year BalancesMWD Storage ResourcesEnd of Year Balances

2.2 MAF2.2 MAF

1.7 MAF1.7 MAF

1.1 MAF1.1 MAF

??? MAF??? MAF

Local Groundwater Limitations

• Historical “Normal” Supply> Groundwater supplies up to 40%> 12,807 AFY annual allocation (32

%)> Spreading credits add 4,308 AFY

on average• “Impacted” Local Supply

> Groundwater supplies about 35% > Reduced allocation: 10,307 AFY > Effective July 1, 2009> Can draw up to 12,807 AFY using

storage

Local Groundwater Limitations

Pasadena Supply and Demand (Short Term Outlook)

Actual/Forecast Water Supply & Demand (Acre-Feet per Year)

20,32821,345 21,116

24,59924,888 22,512

20,753

37,26336,147 35,861

39,36237,481

36,09034,575

10,000

15,000

20,000

25,000

30,000

35,000

40,000

45,000

recast

MWD "Penalty"

MWD Supply/Allocation

AlternativeSupply**

Basin StorageWithdrawal

Spreading Credit

Basin Allocation

DemandForecast

Water IRP and UWMP

• Integrated Resource Plan (IRP)> Update water demand forecast > Identify potential water supply and

conservation alternatives to meet demand> Establish portfolio objectives> Determine ideal mix supply and conservation

• Urban Water Management Plan (UWMP)> State-required form of documentation (report)> Includes IRP elements> Specifically addresses BMP implementation

Impacted Supply & Demand Restricted Imports and Local Supply

Actual/Forecast Water Supply & Demand (Acre-Feet per Year)

10,000

15,000

20,000

25,000

30,000

35,000

40,000

45,000

MWD "Penalty"

AlternativeSupply**

MWD @10%Cutback

Basin StorageWithdrawal

Spreading Credit

Basin Allocation

DemandForecast

Water Conservation Goals

Actual/Forecast Water Demand and Conservation Goals(Acre-Feet per Year)

10,000

15,000

20,000

25,000

30,000

35,000

40,000

45,000A

Constrained Supply (AFY)

Actual/ Forecast Demand

10% Goal

20% Goal

30% Goal

Highlighted Goals:Highlighted Goals:

• Urban Accords – 10% by 2015Urban Accords – 10% by 2015

• California – 20% by 2020California – 20% by 2020

Supply Uncertainties Remain• Import Constraints

> Delta imports in flux> Future of drought?> MWD curtailments beyond FY 2010> Additional imports available at “penalty

rate”• Demand Reduction from Recycled

Water and Conservation Programs (?)• Regardless of Recent Rain, Supply

Issues Will Persist

Water Conservation PlanUpdate

Nancy Long

Comprehensive Water Conservation Plan

Approved by Council April 13, 2009

• New Conservation Emphasis:> Using price signals in rate design to

encourage conservation> Increased outdoor water efficiency> Maximizing new construction

efficiencies

Six Conservation Approaches

1. Conservation Rate Design2. Sustainable Water Supply

Ordinances3. Incentives for Water Efficient

Technology and Practices4. Direct Installation and Distribution5. Audits6. Information, Education and

Outreach

“PWP Water Conservation Effort is Not Business As Usual”

Conservation Approach 1: Conservation Rate Design

• Step 1 (to be completed by July 1, 2009)> Propose revenue increase to maintain fund health> Propose modifications to existing block rate

structure> Propose drought surcharge and allocation scheme> Complete classification of water customers > Improve water usage data on bills

• Step 2 (complete within 18 months)> Propose additional revenue increase> Evaluate effectiveness of Step 1 initiatives> Develop budget-based rate proposal (by Dec. 2009)> Propose water Public Benefits Charge

If allowable under Proposition 218> Implement budget-based rate and PBC (by July 1,

Conservation Approach 1: Proposed Rate Design

• Tiered Rates Sized According To Usage within Each Meter Size Class>Block 1: 0 to 35% of average use>Block 2: 35% - 80%>Block 3: 80% - 90%>Block 4: 90% - 95%>Block 5: >95%

Average Variable Water RateCommodity plus Capital Charge ($/Billing Unit)

Block 1 Block 2 Block 3 Block 4 Block 5

Proposed Retail Rates

Conservation Approach 2: Water Supply Ordinances

• Adopt Ordinances: Permanent Water Waste Prohibition: June 1 Modified Water Shortage Plan: June 1> State Model Landscape Ordinance: Nov. 2009

• Review/Update City Codes/Requirements:> Graywater & rainwater review: June 2009> Fixture replacement on resale: Summer 2009> New development requirements> Construction standards/building codes

New Permanent Water Waste Prohibitions

• No Watering Between 9 a.m. and 6 p.m. (hand watering and system repairs allowed)

• No Watering During Periods of Rain • No Excessive Water Flow, Runoff, or

Washing of Hard Surfaces• Obligation to Fix Leaks• Restaurants Required to Use Water

Conserving Dish Wash Spray Valves • Recirculation Systems Required for

Fountains, Car Washes, Commercial Laundry

Water Waste Prohibitions:Key Exemptions

• Water to Protect Public Health and Safety• Recycled Water, Gray Water, and Rainwater• Use by Commercial Nurseries and Growers• Hand Watering of Trees, Shrubs and

Vegetation Intended for Consumption• Landscape for Fire Protection and Erosion

Control• Rare Vegetation or Essential to Protected

Species• Public Parks, Playing Fields, School Grounds,

Golf Course Green And Day Care Centers – Allowed to Water at Least Two Days Per Week

Water Shortage Plan

• Reduce Consumption During Supply Shortages (Drought or Supply Limitations)

• Council Public Hearing to Determine:> Water Shortage Exits> Water Conservation Target (10%, 20%, etc.)> Shortage Plan Level 1, 2, 3, or 4

• Determination Takes Effect Immediately

Water Shortage Plan Levels

Level 1 2 3 4

Watering Days Per

3 Summer1 Winter

2 Summer1 Winter

1 Summer1 Winter

No Irrigatio

Obligation to Fix Leaks,

Breaks or Malfunctio

72 hours after

notification

48 hours after

notification

36 hours after

notification

24 hours after

notification

Additional Limitation

s/ Prohibitio

Filling ornamental

lakes or ponds; washing vehicles

Filling residential pools/spas;

no new potable water

service

Conservation Approaches 3-6• Approach 3 & 4) Incentives & Direct Install

> Target high consumption, low efficiency uses> Target outdoor: Initiate turf replacement

incentive when funding becomes available from State

> Distribution of water efficient devices> Provide incentives in partnership with MWD

• Approach 5) Large User Audits> 56 of 150 commercial sites as of May 31 2009> Target multi-family & large residential in Phase II

(thru June 2010)• Approach 6) Education & Outreach

> Publications, workshops, demonstration sites, online tools

> Recognition

20% Conservation “Targets”

• “Growth Mitigation” includes building standards, new development offsets, ordinances (e.g., ROR)

• Indoor/Outdoor Use reductions from combination of cash incentives, landscape ordinance, audits, education, etc.

Sources of Conservation20% by 2020

(gallons per capita per day)

14 gpcd26%

5 gpcd10%

10 gpcd21%

1 gpcd3%

2 gpcd4%

8 gpcd15%

10 gpcd21%

Reclaim Water Project

Growth Mitigation

Rate Incentives

Indoor Use

Outdoor Use

Gray Water

Waste Prohibition

Comprehensive Water Conservation Plan

Questions?

Backup Slides Follow

Reclaim Water ProjectStatus

• At Risk Due to Budget Constraints• Commencing Long-Term Initiatives:

> Supply Contract Negotiations: Complete 7/10> Policies & Codes: Adopt by 2010> Seek Outside Funding: continually over next

24-36 months• Retain Consultant: July 2009• Update Feasibility Study: December

2009• Design: July 2009 – Sept 2010• EIR: Sept 2009 – Sept 2011• Construction: 2011 - 2012

Raymond Basin

Water Measurement

Pasadena Water and Power 1 Water Supply Update and Water Conservation Plan Open Space Commission...

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