Sample location: inlet of the basin

Dry weight: 1500 g

1

2

3

4

5

6

7

Sieve size (mm)

Mass of each sieve (g)

Mass of each sieve + retained soil

Mass retained Wi (g)

%retained on each sieve

Pi = (Wi/Wt) * 100

Cumulative of

%retained Rj = ∑Pi

%finer Nj = 100 − Rj

3.35

484.7

485.4

0.7

0.046

0.046

99.954

2

444.7

447.2

2.5

0.166

0.212

99.788

1.18

418.7

426.4

7.7

0.513

0.725

99.275

0.6

400

486.3

86.3

5.753

6.438

93.522

0.425

378.3

453.165

65.865

4.391

10.144

89.856

0.212

340.2

1280.9

940.7

62.713

88.817

11.143

0.15

327

460.5

133.5

8.9

97.717

2.243

0.075

310.5

341.1

30.6

2.04

99.757

0.20

Pan

386.7

389.7

3

0.2

100

0

Total

1500

100