Acidity Test (PH)

No

Sample

Litology

Sediment (Roof/Floor)

PH

Result

1

Layer 1/floor seam-D

Carbonaceous claystone

Roof

4.2

Acid

2

Layer 2/roof seam-D

Carbonaceous claystone

Roof

3.4

Acid

3

Layer 3/roof seam-E

Shale

Floor

5.4

Acid