Groundwater Quality Assessment in a Karst Coastal Region of the West Aurunci Mountains (Central Italy)

Table 2

Descriptive statics of analysed parameters in the groundwater samples.

Sample codes	Parameters	EC (μS/cm)	Na^+ (mg/l)	K^+ (mg/l)	Ca^2+ (mg/l)	Mg^2+ (mg/l)	Cl^- (mg/l)	SO4^2+ (mg/l)	HCO3^- (mg/l)
TUL	Minimum	607.00	16.70	0.30	62.90	9.80	42.80	27.20	244.00
	Maximum	858.00	36.70	12.40	120.60	17.80	137.30	32.30	475.80
	Mean	728.13	26.44	2.08	95.57	13.94	78.14	29.98	371.34
	STD	87.83	6.57	2.85	17.49	2.29	37.64	1.21	70.01
TER	Minimum	1102.00	55.00	1.40	133.30	32.90	196.00	69.20	573.40
	Maximum	1146.00	58.00	2.00	140.10	34.10	218.30	69.60	597.80
	Mean	1124.00	56.50	1.70	136.70	33.50	207.15	69.40	585.60
	STD	31.11	2.12	0.42	4.81	0.85	15.77	0.28	17.25
MAZ	Minimum	280.00	2.10	0.10	31.10	1.00	6.60	2.90	97.60
	Maximum	313.00	5.10	8.20	59.40	11.90	11.80	4.30	244.00
	Mean	302.50	3.91	0.95	48.55	7.48	8.08	3.56	185.61
	STD	6.89	0.89	1.68	7.14	2.60	1.26	0.36	30.50
CAP	Minimum	258.00	2.00	0.10	33.60	1.00	5.30	2.50	109.80
	Maximum	325.00	4.20	8.50	59.30	10.00	9.30	3.80	219.60
	Mean	290.89	3.34	0.82	47.52	7.22	6.75	3.13	181.19
	STD	17.71	0.65	1.58	7.71	2.59	1.15	0.34	28.45

TUL: Tulliola well; TER: Terenzia well; MAZ: Mazzoccolo Spring; CAP: Capodacqua di Spigno Spring.