| Range | Class | The number of samples | Station number on a sliding scale | % | PRM | POM | PRM | POM | PRM | POM |
| EC Wilcox | <250 | Outstanding | 0 | 0 | 0 | 0 | 0 | 0 | 250-750 | Good | 1 | 1 | 19 | 18 | 5 | 5 | 750-2000 | Allowable | 10 | 13 | 13, 9, 15, 7, 18, 14, 2, 17, 1, 3 | 9, 11, 15, 0, 17, 19, 7, 1, 3, 14, 16, 6 | 45 | 50 | 182000-5000 | Unsure | 8 | 6 | 8, 6, 5, 16, 10, 2, 12, 13, 12, 4 | 8, 5, 10, 12, 2, 4, 13 | 40 | 30 | >5000 | Unfitting | 0 | 0 | 0 | 0 | 0 | 0 | TDS (mg/L) classification Davis and Dewiest | <500 | Suitable for consumption | 1 | 2 | 11, 19 | 18, 11, 9 | 8 | 13 | 500-1000 | Allowable to consume alcohol | 8 | 9 | 15, 9, 18, 7, 14, 0, 17, 1, 3 | 15, 1, 17, 7, 19, 3, 1, 14, 16, 6 | 40 | 45 | 1000-3000 | Irrigation-friendly | 8 | 6 | 8, 6, 5, 16, 10, 2, 12, 13, 4 | 8, 5, 10, 12, 13, 2, 4 | 40 | 30 | >3000 | Drinking water and irrigation are both unsafe | 0 | 0 | 0 | 0 | 0 | 0 | Stuyfz and classification of chlorides | <5 | Actual oligohaline | 0 | 0 | 0 | 0 | 0 | 0 | 5–30 | Oligohaline | 1 | 0 | 18 | 0 | 4 | 0 | 30–150 | Fresh | 4 | 4 | 11, 1, 7, 14, 9 | 7, 9, 18, 7, 17 | 20 | 20 | 150–300 | Fresh-brackish | 4 | 6 | 18, 17, 12, 17, 8 | 19, 0, 15, 14, 12, 3, 16 | 20 | 30 | 300–103 | Brackish | 8 | 7 | 3, 0, 2, 6, 7, 14, 4, 13, 10 | 8, 6, 11, 5, 3, 4, 13, 10 | 40 | 35 | 103-104 | Brackish-salt | 0 | 0 | 0 | 0 | 0 | 0 | | Salt | 0 | 0 | 0 | 0 | 0 | 0 | | Hyperhaline | 0 | 0 | 0 | 0 | 0 | 0 | Total hardness classification | 0–75 | Soft | 5 | 5 | 4, 3, 7, 19, 1, 11 | 4, 7, 19, 18, 1, 17 | 25 | 25 | 75–150 | Abstemiously tough | 7 | 10 | 8, 17, 14, 10, 5, 18, 0 | 9, 0, 8, 14, 16, 11, 15, 2, 3, 5, 6 | 30 | 50 | 150–300 | Tough | 5 | 2 | 5, 12, 3, 16, 13, 6 | 12, 13, 10 | 25 | 10 | >300 | Very tough | 1 | 0 | 10 | 0 | 5 | 0 | Chaturvedi fluoride classification | <0.5 | Caries in the teeth | 5 | 6 | 18, 5, 15, 3, 0, 6 | 10, 5, 18, 19, 9, 11, 17 | 25 | 20 | 0.5–1 | Maximum permissible limit | 1 | 10 | 10, 19 | 3, 6, 0, 8, 7, 14, 16, 15, 13, 4, 12 | 5 | 50 | 1–3 | Fluorosis of the teeth | 5 | 1 | 17, 16, 7, 9, 14, 8 | 2, 1 | 25 | 5 | 3–4 | Bones that are stiff | 3 | 0 | 1, 11, 12, 13 | 0 | 15 | 0 | >4 | Knee deformities are a common occurrence. | 1 | 0 | 2,4 | 0 | 5 | 0 | >10 | Skeletal fluorosis | 0 | 0 | 0 | 0 | 0 | 0 |
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