Parameters	N	Minimum	Maximum	Median	Mean	Std	WHO standard
EC	377	19.00	6480.00	1190.00	1763.79	1478.09	1500
Ca²⁺	380	0.40	250.80	19.10	27.36	27.69	75
Mg²⁺	375	0.23	175.90	9.70	13.77	17.07	30
Na⁺	380	1.59	1453.80	187.15	317.35	319.11	200
K⁺	378	0.13	39.56	9.40	10.78	8.99	12
Cl⁻	380	0.60	2056.70	119.55	359.38	443.95	250
${HCO}_{3}^{-}$	379	2.00	768.70	304.40	294.46	136.76	300
${SO}_{4}^{2 -}$	375	0.03	656.00	55.47	71.41	77.20	200
${NO}_{3}^{-}$	218	0.02	181.90	2.10	7.50	21.15	50
F⁻	252	0.02	4.49	0.63	1.13	1.16	1.5