VC West Case Study – 2

Valencia College – West Campus

Water Usage and Cost – Per ZeroTek Fiscal Year

JUN

JUL

AUG

SEP

OCT

NOV

DEC

JAN

FEB

MAR

APR

MAY

2007 – 2008

Totals

kgal

gallons

1,983

2,268

2,031

2,272

2,495

2,244

2,214

1,537

2,210

1,115

900

761

22,030

$ 1.25

cost

$11,634

$12,784

$11,809

$12,858

$13,986

$12,976

$13,272

$ 9,335

$12,933

$ 6,854

$ 5,532

$ 6,701

$130,673

2008 – 2009

kgal

gallons

2,096

2,418

2,404

2,433

3,273

2,440

1,341

1,399

1,450

1,558

2,941

2,737

26,490

$ 1.25

cost

$12,222

$13,625

$13,579

$13,768

$17,776

$14,247

$ 9,483

$ 9,638

$ 9,828

$10,595

$16,922

$ 16,531

$ 158,214

2009 – 2010

2008-2009

($27,541)

kgal

gallons

2,827

3,100

2,777

2,762

3,186

2,366

1,423

628

1,399

1,192

2,081

2,220

25,961

$ 1.34

cost

$17,141

$18,338

$16,969

$16,951

$20,573

$16,480

$11,935

$ 7,964

$11,563

$10,640

$14,764

$ 15,373

$ 178,692

2010 – 2011

2009-2010

($20,477)

kgal

gallons

1,614

1,856

1,900

1,776

1,953

1,636

1,140

385

1,007

880

1,219

1,226

16,592

$ 1.54

cost

$6,121

$6,957

$7,180

$6,533

$8,034

$7,886

$6,605

$3,543

$6,098

$5,226

$6,207

$5,555

$75,945

2011 – 2012

2010-2011

$ 102,747

kgal

gallons

1827

1540

1484

1275

1765

1437

1149

613

1220

1024

1482

1416

16,232

$ 1.54

cost

$7,943

$6,031

$5,286

$4,721

$8,348

$7,871

$6,792

$5,175

$8,036

$6,879

$8,480

$8,322

$83,884

2011-2012

$ 94,807

Notes:

Water

Dollars

Annual Water Usage for 2009 – 2010:

25,961,000

Annual Water Cost for 2009 – 2010:

$178,691.78

Annual Water Usage for 2010 – 2011:

16,592,000

image

Annual Water Cost for 2010 – 2011:

$75,944.64

image

Savings:

9,369,000

Savings:

$102,747.14

Annual Water Usage for 2009 – 2010:

25,961,000

Annual Water Cost for 2009 – 2010:

Annual Water Cost for 2011 – 2012:

Savings

$178,691.78

Annual Water Usage for 2011 – 2012:

16,232,000

image

$83,884.32

image

Savings:

9,729,000

$94,807.46

Two (2) Year Accumulative Savings:

19,098,000

Two (2) Year Accumulative Savings:

$197,554.60

Notes:

2007 – Old Plant 1,200 Tons.

2008 – January thru May- Central Plant Renovation; 500 Ton Temporary Air Cooled Chiller in Place.

2008 – June – 2,250 Tons of Water Cooled Tonnage On-Line. 2008 – October – Rate increase to $1.34 .

2008 – June – Building 10 On-Line. 2008 – November – Building 8 On-Line.

2009 – March – Rate increase to $1.541. 2009 – April – Building 11 On-Line.

Notes:

2010 – January – Make-Up water turned off for 2 weeks during repairs.

2010 – February-May: Reduced water consumption as a result of repairs.

2010 – June – New Technology water system on-line. (ZeroTek Water Management)

2011 – October – Broken line – Sewage rate increase. 2012 – Feb-March Tower repairs and added valve