Classification of Irrigation Water Quality (Na, Cl & SAR)

Classification of Irrigation Water Quality (Na, Cl & SAR)

Quality of Water	Na (ppm)	Cl (me/L)	SAR
Excellent	< 30	< 2.5	< 1.0
Good	30 – 60	2.5 – 5.0	1.0 – 2.0
Fair	60 – 75	5.0 – 7.5	2.0 – 4.0
Poor	75 – 80	7.5 – 10.0	4.0 – 8.0
Very Poor	80 – 90	10.0 – 12.5	8.0 – 15.0
Unsuitable	> 90	> 12.5	> 15