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CAP PresentationCAP PresentationDecember 13, 2010December 13, 2010

East Side Water SupplyEast Side Water Supply

Agenda

Project Overview (Project Scoping Document)

Water Quality

Water System Demands

MWUs Water Demands

Historical Data

November 19, 2010Page - 2

Future Population and Water Demands

Conservation

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Project Overview – Big PictureWhat is the Focus of this Project?

Water QualityWhat impacts our water quality?Is it getting worse? How can we ensure safe water in the future?

Water QuantityHow much water do we need today?How much water do we need in the future? Will conservation change our water needs?

November 4, 2009Page - 3

WATER QUALITY

November 4, 2009Page - 4

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Project Overview - Well System Layout

November 4, 2009Page - 5

Project Overview - Introduction to Hydrogeology

November 4, 2009Page - 6

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Water Quality Issues

Facility Iron Manganese VOC

Secondary MCL 0 30 mg/l 0 050 mg/l or 50 ug/lSecondary MCL 0.30 mg/l 0.050 mg/l or 50 ug/l

Primary MCL PCE > 5 ug/l for a 4 quarter average

Well 7 0.43 mg/l 29 ug/l

Well 8 0.63 mg/l 55 ug/l

November 4, 2009Page - 7

Well 15 0.04 mg/l 13 ug/l PCE = 3.8 ug/l

Well 3 Replacement 0.25 mg/l 15 ug/l

How are We Going to Address These Issues?

November 4, 2009Page - 8

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WATER QUANTITY(How much?)

November 4, 2009Page - 9

MWU Water Use By Customer Class

10%

29%

13%

9% Single Family Residential

Multi‐Family Residential

Wholesale

U of W

Large Users

Other ICI

26%

2%

11%

Water Loss

November 4, 2009Page - 10

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MWU Water Use By Service Zone (Average Day Demand)

1% 3%

4%0%2%3%1%

14%

26%12%

9% 3

4

5

6E

6W

7

8

39%

8

9

10

11

November 4, 2009Page - 11

Madison Water Use and Rainfall

November 4, 2009Page - 12

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Madison Per Capita Water Use and Rainfall

November 4, 2009Page - 13

Madison summer day demand compared to rainfall and average temperatures

3075

p (F)

10

20

15

30

45

60

Summer Rainfall (inches)

nd (m

gd) and

 Average Te

m

November 4, 2009Page - 14

00

1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009

S

SD Dem

an

Year

Summer Rainfall SD Demand Average Temperature

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Peaking Factors

1.6

1.8

2

0.4

0.6

0.8

1

1.2

1.4

Peak

ing

Fact

or

November 4, 2009Page - 15

0

0.2

1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009

Axis Title

MD:AD M30D:AD M90D:AD

MWU Service Area Population(Includes Madison, Maple Bluff, Shorewood Hills, Town of Madison, and other unincorporated areas)

350,000

150,000

200,000

250,000

300,000

Popu

latio

n

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0

50,000

100,000

1970 1980 1990 2000 2010 2020 2030 2040Year

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City of Madison Water Conservation and Sustainability Plan (2006)

Primary Goal: Maintain the current annual rate of Groundwater pumping in existing areasGroundwater pumping in existing areas.

Secondary Goals:

Reduce residential water use 20% by 2020

Promote commercial conservation through rebate promotions and education

November 4, 2009Page - 17

promotions and education

Develop a water conservation plan for each industrial customer

Enact water savings programs at each government building.

Conservation Steps and Recommendations

Short-Term Goals:

Toilet Rebate Program

Automatic meter reading billing system

Outdoor water use restrictions

Public education

Water conservations plans for industrial customers

November 4, 2009Page - 18

p

Improve record-keeping on municipal accounts.

Review MWU operations to improve efficiency

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Other ExamplesUtility Start

YearPrograms Estimated

Reduction in Water Demand

Lincoln NE 1988 Increasing block rate structure Public 7 %Lincoln, NE 1988 Increasing block rate structure, Public Education

7 %

Waterloo, Ontario

Early 1980s

Toilet retrofit, Water efficient shower heads

13 %

Wichita, KS 1990s Toilet retrofit, 2 day per week watering restriction, School education program, Proposed increasing block rate structure

13% (projected)

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Barrie, Ontario 1994 Toilet retrofit, Water efficient shower heads

7 %(16.5 gpcd)

Waukesha, WI 2006 Toilet retrofit, Daytime irrigation ban, 2 day per week watering restriction, School education program, Proposed increasing block rate structure

11%

Conservation Steps and Recommendations

Intermediate and Long-Term Goals:

Residential water audit program

Expand rebate programs to other appliances

Develop certification program for commercial customers

Car wash reclamation ordinance

Meter raw water pumping

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p p g

Water conservations plans for each government customer

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Projected AD Water System Demands by User (High Demand)50

20

30

40

ResidentialNon-ResidentialNon-Revenue

November 4, 2009Page - 21

0

10

2005 2010 2015 2020 2025 2030

Note: 2005 basedon historical data

Projected AD Water System Demands by User (Low Demand)

40

20

30

ResidentialNon-ResidentialNon-Revenue

November 4, 2009Page - 22

0

10

2005 2010 2015 2020 2025 2030

Note: 2005 based

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Projected AD Water System Demands

40

50

20

30

40

AD

Dem

and

(mgd

)

November 4, 2009Page - 23

0

10

2005 2010 2015 2020 2025 2030Year

Historical High Medium  Low 2006 MP

Thank You!