Groundwater Quality and Suitability Assessment in Tirupur Region, Tamil Nadu, India

Table 2

Physicochemical characteristics of groundwater in the study region.

S. no	Ions	Unit	Min	Max	Average	WHO [50]	ISI (1983)	BIS [51]
1	pH	Range	6.95	8.35	7.88	6.5–8.5	6.5–9.2	6.5–8.5
2	EC	µS/cm	360.94	3689.1	1758.6	1500	—	—
3	TDS	mg/l	231	2361	1125.5	1500	1500	1500
4	Temp	°C	25.11	36.63	30.232	—	—	—
5	Salinity	mg/l	0.17	1.93	0.88	—	—	—
6	Ca^2+	mg/l	31.05	202.4	105.6	200	200	200
7	Mg^2+	mg/l	21	194.7	87.1	150	100	100
8	Na^+	mg/l	41	435	172.8	200	150	150
9	K^+	mg/l	4	102	28.1	12	—	—
10	HCO3^−	mg/l	113.8	619	352.5	500	400	400
11	Cl^−	mg/l	71	805.8	338.4	600	1000	1000
12	SO4^2−	mg/l	34	390	181.6	250	400	400