IWA Publishing

Table 1

Statistical summary for the physio-chemical parameters of Marvdasht groundwater

Chemical parameter	unit	Mean	Min	Max	Standard deviation	Coefficient variation	WHO (2017)
pH	–	7.53	6.9	8.0	0.2	2.8	7.5–8.5
EC	μS/cm	4,001.2	35.9	14,697.0	2,635.1	127.1	1,500
TDS	mg/L	2,400.7	347.2	10,270.5	2,823.0	117.1	1,000
TH	mg/L	1,123.2	199.6	5,470.4	1,364.5	121.1	500
HCO₃⁻	mg/L	309.1	100.0	552.1	89.6	29.4	300
SO₄²⁻	mg/L	301.5	13.2	1,501.6	377.3	125.2	200
Cl⁻	mg/L	941.6	13.5	5,117.7	1,418.1	150.5	200
Ca²⁺	mg/L	217.1	52.0	838.6	235.1	108.2	75
Mg²⁺	mg/L	146.1	12.2	840.5	187.4	128.2	30
K	mg/L	7.4	0.5	32.0	0.8	51	12
Na⁺	mg/L	398.6	6.0	2,200.4	548.8	137.7	200

Chemical parameter	unit	Mean	Min	Max	Standard deviation	Coefficient variation	WHO (2017)
pH	–	7.53	6.9	8.0	0.2	2.8	7.5–8.5
EC	μS/cm	4,001.2	35.9	14,697.0	2,635.1	127.1	1,500
TDS	mg/L	2,400.7	347.2	10,270.5	2,823.0	117.1	1,000
TH	mg/L	1,123.2	199.6	5,470.4	1,364.5	121.1	500
HCO₃⁻	mg/L	309.1	100.0	552.1	89.6	29.4	300
SO₄²⁻	mg/L	301.5	13.2	1,501.6	377.3	125.2	200
Cl⁻	mg/L	941.6	13.5	5,117.7	1,418.1	150.5	200
Ca²⁺	mg/L	217.1	52.0	838.6	235.1	108.2	75
Mg²⁺	mg/L	146.1	12.2	840.5	187.4	128.2	30
K	mg/L	7.4	0.5	32.0	0.8	51	12
Na⁺	mg/L	398.6	6.0	2,200.4	548.8	137.7	200