N˚	Parameters	Units	Ref.	Samples
N˚	Parameters	Units	Ref.	L1	L2	L3	L6	L7	L8	L9	L12	L13
1	pH	-	7.0	8.8	8.8	8.8	8.2	8.4	8.8	8.2	8.9	8.7
2	TSS	mg/l	80	80	100	80	85	90	136	91	266	62
3	EC*	µS/cm	300	566	482	521	681	1061	2340	1034	987	589
4	TU**	NTU	-	68	75	72	70	77	112	82	245	45
5	Cu	mg/l	0.5	0.014	0.002	0.003	0.437	0.131	0.091	0.057	0.052	0.059
6	Mn	mg/l	0.5	0.053	0.012	0.033	0.906	0.195	0.739	0.139	0.373	0.036
7	Fe	mg/l	25	<0.01	<0.01	<0.01	<0.01	<0.01	<0.01	<0.01	<0.01	<0.01
8	Cd	mg/l	0.01	<0.01	<0.01	0.010	0.011	0.012	0.006	<0.01	<0.01	0.002
9	Co	mg/l	0.5	0.030	0.003	0.026	0.209	0.150	1.740	0.229	0.891	0.021
10	Ni	mg/l	0.02	<0.01	<0.01	0.061	0.031	0.050	0.063	0.047	0.050	0.042
11	Pb	mg/l	0.01	<0.01	0.035	0.062	0.019	<0.01	<0.01	0.077	<0.01	<0.01
12	Zn	mg/l	1.0	0.006	<0.01	<0.01	<0.01	<0.01	<0.01	<0.01	<0.01	<0.01
13	Ca	mg/l	-	84.69	77.62	77.62	92.12	116.6	116.6	132.2	130.20	93.290
14	Mg	mg/l	-	62.5	75.02	75.02	93.99	123.70	123.70	123.90	136.70	62.080
15	${SO}_{4}^{2 -}$	mg/l	100	68	31	87	93	119	>140	>140	137	34