BldgNO.

HVAC/GHP Instl. Yr

Instl. Type

GHP type*

NO. of Boreholes

Borehole Depth [m]

Borehole Separation Dist. [m]

Borehole Length [m]

Borehole Length per kW [m/kW]

GHP water flow rate per kW [L/min/kW]

1

2009

New for the addition

V

120

62

4.6

7425

23.4

4.8

2

2008

New

V

504

61

4.6 or less

30724

Unknown

Unknown

3

2010-2012

New

V

130

61

4.6

11887

31.3

5.8

4

2006

New

V

36

61

4.6

2195

13.3

3.0

5

2003

New

V

70

61

4.6

4267

14.8

3.2

6

2006

New

V

30

61

4.6

1829

17.3

3.8

7

2010 for Upgrade

Retrofit/ Upgrade

V

26

61

3 - 4.6

1585

19.4

3.9

8

2012

New

V

142

64

4.6

9089

18.7

3.9

9

2011

New

V

120

91

6.1

10973

20.4

3.3

10

Ground loop and HPs: 1994 73 replacement HPs: 2013

New

V

688

46

3.0

31455

Unknown

Unknown

11

2007 with 50 HPs 2012 for New Addition with 9 new HPs

New

V

288

46 - 61

2.4 - 3.7

13167

17.2

4.3

12

2011

New

V

928

61

Unknown

56571

20.0

3.1

13

1999 with 54 HPs 2009 for New Addition with 3 new HPs

New

V

320

46

2.4 - 3.7

14630

18.1

4.1

14

2008

New

V

384

61

4.6

23409

20.9

3.9

15

2012

Retrofit

V

72

76

6.1

5486

13.3

2.3

16

2006

New

V

48

61

4.6

2926

16.6

3.3

17

2005

Retrofit

V

100

46

Unknown

4572

Unknown

Unknown

18

2011

New

HB

16

7.6 and 12.2

6.1

152/ea. Total: 2432

7.2

2.5

19

2012

New

V

26

61

4.6

1585

12.2

2.6

20

2008

New

V

80

61

4.6

4877

20.2

4.5

21

2009

New

V

18

61

4.6

1097

19.2

4.0

22

1992

New

Unknown

23

2002

New

24

2003

New