United States salinity laboratory specified salinity hazard classes
| Hazard class . | EC in (micro mohs/cm) . | Remarks on quality . | Pre-monsoon samples . | Post-monsoon samples . |
|---|---|---|---|---|
| C1 | 100–250 | Excellent | 21 | – |
| C2 | 250–750 | Good | 33 | 11 |
| C3 | 750–2,250 | Medium | 4 | 39 |
| C4 | 2,250–4,000 | Bad | 1 | 10 |
| C5 | >4,000 | Very bad | 2 | 2 |
| Hazard class . | EC in (micro mohs/cm) . | Remarks on quality . | Pre-monsoon samples . | Post-monsoon samples . |
|---|---|---|---|---|
| C1 | 100–250 | Excellent | 21 | – |
| C2 | 250–750 | Good | 33 | 11 |
| C3 | 750–2,250 | Medium | 4 | 39 |
| C4 | 2,250–4,000 | Bad | 1 | 10 |
| C5 | >4,000 | Very bad | 2 | 2 |