Reconsideration at Field Scale of the Relationship between Hydraulic Conductivity and Porosity: The Case of a Sandy Aquifer in South Italy

Table 2

Midpoint depth of the undisturbed soil samples examined in laboratory and relative meaningful results and parameters of the grain size analysis.

Drilling column piezometer A								Drilling column piezometer B
Sample number	Depth (m)	Clay %	Silt %	Sand %	(mm)	(mm)		Sample number	Depth (m)	Clay %	Silt %	Sand %	(mm)	(mm)
1	14.15	7.2	23.3	63.5	0.27	0.003	93.10	1	11.90	3.5	16.5	77.8	0.4	0.025	16.00
2	16.65	9.6	28.9	60.5	0.17	0.002	70.83	2	12.40	2.8	12.2	77.8	0.7	0.023	30.43
3	17.85	16.7	45.7	37.6	0.05	0.001	51.00	3	13.30	3.2	16.8	80.0	0.4	0.015	26.67
4	19.05	5.2	23.4	68.0	0.30	0.005	65.22	4	14.50	4.9	17.1	78.0	0.42	0.0094	44.68
5	20.15	4.2	20.2	73.1	0.34	0.007	47.89	5	17.95	4.0	19.3	70.2	0.18	0.0025	72.00
6	21.45	5.4	22.5	67.7	0.20	0.007	29.41	6	22.95	5.8	11.2	80.0	0.63	0.059	10.68
7	23.20	5.8	21.2	72.2	0.18	0.006	32.14	7	34.65	2.3	9.3	80.6	0.68	0.084	8.10
8	27.15	3.5	16.1	80.0	0.22	0.020	11.00	8	38.75	2.5	6.0	85.0	0.24	0.026	9.23
9	29.85	23.6	50.8	25.4	0.02	0.001	24.00	9	41.00	4.5	8.0	80.0	0.53	0.048	11.04
10	34.75	3.7	17.4	71.3	0.40	0.012	33.33	10	42.75	4.2	7.6	86.7	0.53	0.071	7.46
11	40.65	6.5	27.1	65.4	0.24	0.004	61.54	11	44.15	1.0	8.8	89.4	0.44	0.073	6.03
12	43.05	1.7	9.3	88.5	0.28	0.053	5.28	12	48.00	2.9	6.9	90.2	0.43	0.06	7.17
13	44.25	1.3	8.6	88.1	0.40	0.060	6.67	13	50.45	3.0	8.0	89.0	0.41	0.08	5.13
14	47.45	0.9	15.9	83.0	0.18	0.040	4.50	14	52.65	2.8	6.2	91	0.23	0.004	57.50
15	48.45	1.6	12.6	84.1	0.37	0.030	12.33
16	49.65	2.8	14.0	82.3	0.26	0.020	13.00
17	50.95	3.5	14.6	81.0	0.25	0.025	10.00
18	52.55	4.2	15.5	80.3	0.17	0.032	5.31
Mean values	—	—	—	—	0.239	0.018	32.03	Mean values	—	—	—	—	0.44	0.041	22.29