Table A4.

$Z_4$: Sufficient Excavation Practices? CPT

	Z2: Potholing Performed?
	Yes		No
	Z3: Other Excavation
	Best Practices Performed?
	Yes	No	Yes	No
Yes [%]	100.0	79.9	60.9	0.0
No [%]	0.0	20.1	39.1	100.0