Texas Water Conservation Association 68th Annual Convention

Dallas, Texas March 8, 2012

Jo M. (Jody) Puckett, P.E.

The Drought’sAffect on

Dallas WaterUtilities

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Dallas Water Utilities• The Water Department was founded in 1881 • The Water Department is funded from water

and wastewater revenues, and does not receive tax dollars

• Approximately 1,500 employees today

Construction of White Rock Dam 1911

Record Crossing Elm Fork of the Trinity River 1896

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DWU Water Supply Management

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• Treated Water Service~1.2 million - Dallas (retail)~1.0 million – 23 wholesale customer cities

• Untreated Water Service~207,000 – 4 wholesale customer cities

• Total Population served for Water 2.4 million

• Wastewater Service~1.16 Million Dallas (retail)~104,500 – 11 customer cities~1.26 million – Total population

• 699 square mile service area

DWU Utility Services

DALLAS

COLLIN

ROCKWALL

KAUFMAN

DALLAS

ELLIS

DENTON

TARRANT

TREATED WATERCUSTOMER

UNTREATED WATERCUSTOMER

TREATED & UNTREATEDWATER CUSTOMER

L E G E N D

DALLASRETAILSERVICEAREA

WHOLESALECUSTOMERS

21april10

Dallas Water Utilities Assets

Water Assets

• 7 surface reservoirs, (6 connected and 1 currently not connected)

• 5166 miles of water mains• 3 Surface Water Treatment

Plants with a combined capacity of 900 MGD with an additional 100 MGD by 2015

• 22 water pump stations• 9 elevated and 12 ground

storage tanks• Value of water assets $2.454

Billion

Wastewater Assets

• 2 Wastewater treatment plants with a combined capacity of 260 MGD

• 15 wastewater pump stations• 4,364 miles of wastewater

main• Value of wastewater assets

$1.883 Billion

Combined water and wastewater system outstanding debt $2.923 Billion

How Dallas’ System Water is Used

Represents Total Water Use for FY04 – FY08; Dallas serves a total population of 2.3M peopleSource: City of Dallas Water Conservation Five-Year Strategic Plan Updated June 2010

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48.8%

37.3%

3.4%

10.5%

Retail Wholesale Unbilled Authorized Water Loss

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DWU Water Conservation Program Timeline

1980 20102001

City of Dallas water conservation program consisted primarily of public education and outreach

Council passed an ordinance prohibiting lawn and landscape water waste; adding time of day watering; and added additional rate tiers

Rain sensor rebate program established

City Council adopted first Five-Year Water Conservation Strategic Plan including incentives

Time of day watering restrictions expanded to April through October annually

Council adopted an updated Five- Year Strategic Plan

2005 2007

City 2008 Gallons per Capita per Day (GPCD)

2008Residential

GPCD

Houston 134 65

San Antonio 149 92

Dallas 213 95

Austin 171 102

Fort Worth 192 75

GPCD Comparisons*Not the Whole Story

*Source: Texas Water Development Board 2012 Water Plan

Conservation Strategic Plan ProgramsCity Leadership & Commitment

Reduce water loss through additional leak detectionReduce water loss through improved metering accuracyVoluntary twice weekly wateringIndustrial, Commercial and Institutional (ICI) Water-efficient Equipment RuleWater-wise landscape design requirementsTexas High Efficiency Toilet (HET) Law

Education and Outreach InitiativesICI Hospitality ProgramICI Customer Water AuditsICI Training ProgramsICI Business Partnership/Stakeholders

Rebates and IncentivesEnhanced residential toilet incentivesICI Financial Incentive ProgramResidential Irrigation Incentive ProgramResidential clothes washer rebate

8Source: City of Dallas Water Conservation Five-Year Strategic Plan June 2010

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Water Consumption Trend

10Water Supply Benchmarks – 75% capacity remaining after 18 months and 50% remaining after 3 ½ years

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1111

Water Use and 2012 Water System Restriction

Note: Graph shows that water restrictions would be needed in FY10 and FY11. FY10 was a relatively wet year; FY11 was hot and dry.

250

350

450

550

650

750

10/1

10/1

5

10/2

9

11/1

2

11/2

6

12/1

0

12/2

4

1/7

1/21 2/4

2/18 3/3

3/17

3/31

4/14

4/28

5/12

5/26 6/9

6/23 7/7

7/21 8/4

8/18 9/1

9/15

9/29

MG

D

Water ConsumptionFY10 and FY11

FY10 FY11 85% Available Treatment Capacity Treatment Capacity During Construction

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Drought Measure Implementation

• June 2010 - Dallas’ Drought Contingency Plan adopted by the Council and submitted to the State

• August 2011 - Dallas called for customers to voluntarily restrict outside watering

• December 12, 2011 - Dallas entered Stage 1 of its Drought Contingency Plan

• February 8, 2012 – Dallas extended Stage 1 of its Drought Contingency Plan

1950s Drought

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Current Drought Conditions - Drought Monitor

Jan 18, 2011 Sept 13, 2011April 5, 2011 June 28, 2011 Nov 22, 2011

6Source: National Drought Mitigation Center

February 28, 2012

QUESTIONS?