pasadena water system and resources plan

Pasadena Water and Power

Pasadena Water System and Resources Plan

Public Meeting No. 2

20 NOVEMBER 2019


Water System and Resources Plan

2

Integrated Resources

Plan

Water Master

Plan

WSRPWhere will the water come from?

How will it be delivered?

Policy Makers

Decisions Adopt the WSRP Provide resources

Stakeholders

What are Community Values?


WSRP Process

3

1

2

3

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Stakeholder Involvement

Develop and Evaluate Portfolios

Identify Option Strategies

Assess Baseline and Needs

Define Goals, Objectives, Metrics

Create Implementation Pathway

Define Plan PurposeDefine Plan Goals and ObjectivesDraft Evaluation Criteria

Water ResourcesDemand ProjectionsSupply ProjectionsWater Quality AssessmentResiliency Assessment

Water DistributionModel ReviewHydraulic ModelingEnergy/Reliability AssessmentMeter Assessment

Water FacilitiesSite Visits, InterviewsFacility AssessmentResilience AssessmentRisk Assessment

Water Resources (examples)Conservation OptionsSurface/Stormwater OptionsGroundwater OptionsRecycled Water Options

Water Distribution (examples)Fire Flow AnalysisStorage RequirementsFacilities UpgradesNew Facilities

Refine Evaluation

Criteria

Create Resource

Alternatives

Create Distribution CIP

Alternatives

Create Full

Portfolios

Evaluate PortfoliosCost EstimatingSystem ModelingHydrualic Modeling

DecisionModeling &

PortfolioTrade-Offs

Financial Planning

Selected Portfolio Implementation Plan

CIP

Outreach Set upPrepare Outreach PlanSchedule Meetings

PWP and Stakeholder Meetings


Water System & Resources Plan

Water SupplyImported Water, Wells, Treatment of Water & Conservation

Water DistributionPipes, Booster Pumps, Meters & Services

Water StorageReservoirs and Tanks

Other Water FacilitiesSoftware, Lab, Buildings & Grounds

4

Water Supply Water

Distribution

Water StorageOther


Pasadena Water Demands

5

Conservation program• Peak demands• Demand management

Future demands• Regulations• Aging community • More multi-family/less single-family homes

-

5,000

10,000

15,000

20,000

25,000

30,000

35,000

40,000

45,000

2000

2001

2002

2003

2004

2005

2006

2007

2008

2009

2010

2011

2012

2013

2014

2015

2016

2017

2018

2019

PWP Annual Production (AFY)


Pasadena’s Water Resources

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65% Imported WaterState Water Project• Sacramento-San

Joaquin Delta• California Aqueduct

Colorado River • Colorado River

Aqueduct


MWD Uncertainties & Challenges

7

Climate variabilityDecreased snowpackChange in runoff timingIncreased fire risk - water quality issuesSea water intrusion in DeltaLake Powell - 54% full Lake Mead - 40% full


MWD Uncertainties & Challenges

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Regulations - water quality & environmentalAging infrastructureLow demandsSeismic uncertainty


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San Andreas Fault


Local Groundwater Supply

10

35% Groundwater9 Active wellsRainfall - the main replenishing sourceMountain runoff


Local Raymond Basin Aquifer

PasadenaSanta Anita

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Raymond Basins Cross Section

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Local Groundwater Wells

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18 wells - 9 active


Local Threats Water Quality

Perchlorate

1,2,3-TCP

Volatile Organic Compounds:• PCE• TCE

Nitrates

14


Local Threats Dropping Water Levels

15

1934

Col

orad

o R

iver

Aqu

educ

t com

plet

ed

1975

SW

P

com

plet

ed


Distribution

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Aging system510 miles of pipe37,500 meters3,132 fire hydrants19 booster stations

Water Supply Water

Distribution

Water StorageOther


Distribution

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Storage Reservoirs &Tanks

14 storage reservoirs - seismic vulnerability

Water Supply Water

Distribution

Water Storage

Other

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Customer Information (Billing) SystemSupervisory Control and Data Acquisition (SCADA)Upgrades to PWP lab & other buildingsDemonstration gardensSecurity

Other CIP Projects

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Water Supply Water

Distribution

Water StorageOther


Water System Infrastructure

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WSRP Evaluation Process

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Goals1. Provide Reliable & Sustainable Water Supply

2. Improve System Resiliency

3. Be Good Stewards to the Community & Environment

4. Support Pasadena’s Quality of Life

Community Values & Ranking1. Supply Reliability & Resiliency2. Health & Safety3. Environmental Stewardship4. Cost5. Self-Sufficiency6. Regional Collaboration7. Ease of Implementation8. Flexibility/Adaptability9. Community Values/Quality of Life


Evaluated Project Portfolios

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• PWP will continue operating as it has historically, meet conservation regulationsA: PWP Pivot

• Gradually replace groundwater use with imported water, and don’t replace groundwater wells as they reach the end of their life cycle

B: Maximize MWD Supply / Minimize Local CIP

• Implement projects that use local supply sources• Increase distribution system and storage

C: Maximize Local Supplies

• Focus on low energy, local decentralized storm water projects and environmental water quality – green streets, aggressive conservation

D: Maximize Sustainable Sources and Practices

• Add local supply sources, re-open surface water treatment plant for drinking, use advanced treated recycled water for drinking

E: Maximize Direct Use of Stormwater and Recycled Water

• Add a non-potable supply system, moderate conservation • Increase storage and use of water in the Raymond Basin

F: Maximize Value of Groundwater/Non-Potable Supplies


Portfolio Costs

Portfolio Capital Cost (all CIP

categories)

A: PWP Pivot $200 Million

B: Maximize MWD/ Minimize Local CIP $370 Million

C: Maximize Local Supplies $520 Million

D: Maximize Sustainable Sources $515 Million

E: Maximize Direct Use of Stormwater & Recycled Water $415 Million

F: Maximum Value of Groundwater Basin/Non-Potable Supplies $435 Million

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Selected Portfolio

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Strengthen groundwater basin• Groundwater treatment• Manage groundwater levels

Match water quality for best usePrudent conservation & energy efficiencyMaximize local surface waterUpgrade water system infrastructure• Provide responsible reliability


Selected Portfolio Supplies

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Local water• Arroyo Seco Canyon Project• Pump Back Project• Others

Groundwater storage

Natural infrastructure

Well rehabilitation

Groundwater treatment

Non-potable water


Local Non-Potable Water Project

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Selected Portfolio: Distribution & Storage

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DistributionReplace/rehab 270 miles of

pipelines

StorageReplace Sunset Reservoir ($33 M)Major seismic retrofit of 8 reservoirs


Capital Improvement Program

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$80 Million

$300 Million

$40 Million

$15 Million

Supply and Production

Distribution

Storage

Other CIP


Capital Expenditure Schedule

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How To Pay For It?

Current RevenuesGrantsImprove Internal EfficiencyNon-Revenue WaterNew Loans Debt ServiceFuture Rate Increases

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Adaptive Management

1 year - Prepare annual budget3-5 years - CIP program5 year - Urban Water Management Plan will update goals & objectives

External Conditions

Internal Conditions

• Regional Reliability• Regulations• Funding• Climate

• Priorities• Rates/Revenue• System Condition• Demands

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QUESTIONS?

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Tentative Schedule

EAC - Today, November 12, 2019Draft Report – posted in next two weeksPublic Meetings:• November 14 (Thu) - 6 p.m. at Jackie Robinson Center • November 20 (Wed) - 6 p.m. at Victory Park, Room 3

MSC - January 14, 2020City Council - January 27, 2020

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Rainfall In Pasadena Since 1883

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0.00

10.00

20.00

30.00

40.00

50.00

60.00

1883

1887

1891

1895

1899

1903

1907

1911

1915

1919

1923

1927

1931

1935

1939

1943

1947

1951

1955

1959

1963

1967

1971

1975

1979

1983

1987

1991

1995

1999

2003

2007

2011

2015

2019

Rainfall in Pasadena (Inches)


History – Water is in Our Blood

• 1886 - City of Pasadena is incorporated

• Many water companies provided water to the City with poor reliability

• Nov 1, 1912 - Pasadena Water Department established with the consolidation of 3 water companies

• By 1953, a total of 44 water companies are consolidated

•35


Conservation in the Portfolio

Managing Water Demand at the Customer Level• Reducing or shifting water use

Technology Onsite Reuse Regulation

• Modifying behavior Data analytics / feedback Fixing leaks / watering landscape less Outreach and education

Managing Recharge at the Customer Level• Nature based solutions • Parcel level recharge – 200 AF of local surface water

Demand management can be varied• Permanent; hourly; seasonal; ad hoc• Reductions to make water deliveries more reliable and economical

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Current Water Use By Customer Class

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~8% Non-revenue water2,250 AFY $4M lost revenue


Groundwater RightsPasadena’s groundwater rights:

Pasadena Sub-basin is 8,343 AFYMonk Hill Sub-basin is 4,464 AFY

Lowering of aquiferMonk Hill Sub-basin - Declined by 30 to 50 feetPasadena Sub-basin - East side declined by 75 to 110 feet; West side increased by 10 to 20 feet

2009 Reduction Plan for the Pasadena Sub-basinPumpers agree to a 30% reduction. City’s decreed reduces to 10,304 AFY (70% of 8,343 + 4,464)Monk Hill Sub-basin - No reduction, but could be implemented in the future

Watermaster - monitoring wellsWater levels in the well may set annual pumping rights in the future

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Raymond Basin Adjudication

16 agencies have allocated decreed groundwater rights

Pasadena & Arcadia are the only parties with groundwater rights in two sub-basins

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pasadena water system and resources plan

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