Ministry of construction



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Notes:

  1. Abbreviations:

HC- adjusted;

KD: not used;

??: the datum is unreasonable but not adjustable

(2): The WSUs with the names in bold characters are those in the first quartile (including twenty one (21) WSUs having biggest capacities)

Table 4. The quartiles of indicator values of WSUs

Code

Indicator

Unit

Quartiles

Min

Q1 (lower)

Q2 (median)

Q3 (upper)

Max

A67

Design capacity

m3/ day



















IV CG




1,400

11,750

29,000

60,175

1,545,100




V CG




620

4,700

9,100

16,875

72,950




Combined




1,000

12,433

34,950

69,875

1,545,100

A30

Population in the responsible area

‘000 inhabitants

13.900

111.000

218.000

422.000

8.062.000

A36* A35

Serviced population

‘000 inhabitants

8.000

63.492

157.000

298.000

8.062.000

A35

The domestic connections

‘000 conn.

1,286

42,298

124,103

276,956

2,679,569

A26-27

Abstracted water amount

‘000 m3/ day

330

4,785

11,204

21,656

434,872




The surface water ratio

%

0

17.98

92.13

100

100




The ground water ratio

%

0

0

10.39

95.90

100

A70

The water volume supplied into distribution network

‘000 m3/ day

319

3,634

8,834

20,003

324,355




Service coverage



















1.1

Percentage urban population served

%



















  • in IV GCs




10.0

65.56

81.47

96.83

100




  • in V GCs




4.21

44.08

68.82

83.06

100




  • combined




10.00

55.67

75.88

87.65

100.00




Water Production and consumption



















2.1

Production utilization of capacity

%

45.70

68.37

79.40

89.64

121.02

2.2

Residential Water consumption per capita

liters/person/ day



















  • in IV GCs




38

93

107

122

189.




  • in V GCs




31

67

82

102

208.




  • combined




38

89

103

116

183

2.3

Non-Revenue Water

%



















  • in IV GCs




0

16.97

22.04

26.85

45.17




  • in V GCs




0

13.16

20.53

23.97

53.94




  • combined




0.52

18.16

22.47

26.36

45.17

2.4

Water Treatment Plant efficiency/ - water used at the water treatment plant

%



















  • in IV GCs




0

1.97

4.75

8.14

100




  • in V GCs




0

3.10

6.00

10.46

93.29




  • combined




0

2.61

4.76

9.02

99.06




Metering



















3.1

Meters checked, recalibrated or replaced per year

%

0

3.03

7.05

14.01

55.95




Network Performance



















4.1

Number of pipe breaks in whole network

breaks/km/yr.

0

0.15

0.22

1.88

10.85

4.1a

Number of pipe breaks

in TRANSMISSION network



breaks/km/yr.

0

0.07

0.66

0.88

15.24

4.1b

Number of pipe breaks in DISTRIBUTION network

breaks/km/yr.

0

0.16

0.69

2.37

17.38

4.2

Investment in the development of the distribution system (as a % of revenues)

%

0

4.5

11.52

27.85

219.68

4.3

Pipe rehabilitation or renovation (length of mains renovated/ replaced as a % of total length)

%

0




0.37

5.47

17.39




Electricity Consumption:



















5.1

Electricity consumption per m3 of water produced

KWh/m3

0

0.27

0.33

0.45

1.82




Operating Costs:



















6.1

Unit (of ALL) Operational Cost of water sold

VND/m3 sold

585

2,463

3,176

4,566

12,001

6.2

Unit (of ALL) Operational Cost of water produced

VND/m3 produced

820

2,003

2,660

4,105

9,968

6.3

Energy Costs vs Operational Costs

%

0

12.5

18.43

24.20

44.65

6.4

Labor Costs vs Operational Costs

%

0

21.23

37.69

40.36

67.00

6.5

Chemical Costs vs Operational Costs

%

0

1.82

4.56

7.24

17.46




Staffing Levels



















7.1

Staff per water supply connections

#/'000 conn.

2.14

5.1

7.1

8.72

48.25

7.2

Staff per population served (’000 )

#/'000 pop served

0.44

1.07

1.58

2.16

10.08




Quality of Service provided:



















8.1

Continuity of Service (hours of water service per day)

hrs./day

12

24

24

24

24

8.2

Quality of water supplied (% of tested samples passing QCVN standard)

%

0

95.25

100

100

100

8.3

Complaints about water supply services (% of number of connections)

%

0

0.045

0.27

0.845

31.73




Revenues:



















9.1

Average Water Supply Revenue

VND/m3 water sold

39.92

2,463

3,176

4,566

12,601




Tariffs:



















10.1

Average actual water price

VND/m3 water produced

1,825

4,130

4,842

5,952

25,048

10.2

Proportion of approved water price to proposed one

%

52.00

82.25

94.00

100.00

147.0

10.3

Average Water Supply bill for domestic customers

VND/m3 water billed

1,804

4,636

5,435

6,071

11,807




Billing and Collection:



















11.1

Revenue collection efficiency

%

82.50

93.39

97.40

100

100




Financial:



















12.1

Proportion of Operating Cost to Revenue

%

21.33

43.45

56.63

76.24

154.78

12.2

Debt Service Ratio (% of total direct tariff revenue)

%

0

2.78

13.88

22.09

184.92

12.3

Increase in residential connections over the year

%

2.06

5.05

7.32

10.12

141.34

12.4

Investment in domestic connections(% of total direct tariff revenue)

%

0

1.6

3.93

6.78

74.2




Staff Training:



















13.1

Training and development of human resource (training costs, % of total direct tariff revenue)

%

0

0.02

0.09

0.3

28.4

13.2

Total training costs per employee

mill.VND/ employee

0

0.05

0.2

0.62

192.7



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