Quality control

Year 97

Year 96

Year 95

year 94

year 93

year 92

Explain

452

6075

5855

5669

5139

3986

Microbiological
number sampling

338

5363

5302

5129

5031

4819

Chemical
number sampling

8463

116209

84843

79744

75131

70554

Number of test
residual chlorine

8460

115945

84797

79597

75075

70497

Number of eligible
residual chlorine

3

5

3

0

0

0

Number of
hydro chlorine

43

45

43

39

40

37

Number of
gas chlorine

3

2

1

2

1

2

Number of
handle chlorine

All right reserved for Shiraz water and waste water Co.