Solution number

1

2

3

4

5

6

7

Total cost ($/year)

626,819

635,634

632,458

624,806

634,744

639,738

632,744

GHG (106 kg CO2-e/year)

3.32

3.33

3.34

3.31

3.36

3.39

3.34

WAnet (h)

0.21

0.2

0.21

0.21

0.16

0.15

0.2

New zone connection

5

5

5

5

5

5

5

No. duplicated pipes

170

177

172

171

180

178

170

No. replaced pipes

70

66

69

68

66

67

72

Setting PRV V1

56

56

56

56

56

55

56

Setting PRV V45

49

49

49

50

49

49

49

Setting PRV V47

55

55

55

55

55

55

55

Setting PRV N15

54

54

54

54

54

54

54