Parameter

Observed value

Site 1

Site 2

Site 3

Site 4

E. coli

33,050 ± 11

670 ± 7

630 ± 5.

34,600 ± 13

FC

31,800 ± 9

680 ± 7

460 ± 6

0 ± 0.00

TC

263,200 ± 15

17,990 ± 18

1050 ± 11

55,400 ± 21

FS

26,000 ± 9

2300 ± 3

1400 ± 4

27,600 ± 10