Sample

Final reading (mL)

Initial reading (mL)

Volume (ml) used for blank sample (B)

Volume (ml) used for water samples (A)

COD in (mg/L)

KUMA

11.8

0.0

10.3

11.8

12

TEX

22.5

11.8

10.3

10.7

3.2

Blue Diamond

35.4

22.5

10.3

12.9

20.8

JAH

44.1

35.4

10.3

8.7

˂0.0

JAGISA

11.3

0.0

10.3

11.3

8