West Bengal Pollution Control Board |
Siliguri Laboratory |
Paribesh Bhawan, Paribahan Nagar, P.O. Matigara, Siliguri,Darjeeling 734 428. |
| Station: River Siltorsa at Hasimara | River Basin: Tista | CPCB Station Code: 4718 |
| Sample Date: 27/12/2019 | Sample Time: 13:20 Hrs | |
| Human Activities: Bathing and washing. | Weather: Sunny and Clear. | Water Body: Siltorsa |
| Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Light green and Clear. | Odour: Fishy | Visible effluent discharge: None. |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | 0.11 | mg/l |
| Fecal Coliform | 2200 | MPN/100ml |
| Nitrate-N | 1.20 | mg/l |
| pH | 7.50 | Unit |
| Potassium | 2.00 | mg/l |
| Sodium | 0.50 | mg/l |
| Sulphate | 20.65 | mg/l |
| Total Alkalinity | 92.00 | mg/l |
| Total Dissolved Solids(TDS) | 48.00 | mg/l |
| Temperature | 19 | ⁰C |
| Total Coliform | 7000 | MPN/100ml |
| Boron | 0.028 | mg/l |
| Calcium | 16.84 | mg/l |
| COD | 40.00 | mg/l |
| Fluoride | 0.14 | mg/l |
| Magnesium | 11.52 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| BOD | 1.40 | mg/l |
| Conductivity | 110.60 | µs/cm |
| Dissolved O2(DO) | 6.90 | mg/l |
| Total Suspended Solids(TSS) | 22.00 | mg/l |
| Chloride | 8.81 | mg/l |
| Total Fixed Solids(TFS) | 114.00 | mg/l |
| Total Hardness as CaCo3 | 82.00 | mg/l |
| Turbidity | 0.64 | NTU |
| Phosphate-P | 0.075 | mg/l |