Estimated depths (M)

Fecal coliform count (dry season)

Serlogicak test for E. coli 157H

Risk level

Fecal coliform count (rainy season)

Serlogicak test for E. coli 157H

Risk level

Zone1

36 - 49

458.3 ± 227

1colony

611

1 colony

Zone2

35 - 70

1027.7 ± 685

0 colony

00

0 colony

Zone3

41 - 48

00

0 colony

00

0 colony

Zone4

36 - 49

916 ± 722

0 colony

00

0 colony

Zone5

45 - 47

13,333 ± 177.

1 colony

37

0 colony

Zone6

42 - 48

00

0 colony

00

0 colony

Zone7

42 - 47

00

0 colony

00

0 colony

p-value

<0.1