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: 15/06/2020 | Sample Time: 13:45 | |
| Human Activities: Bathing and Washing and Fishing. | Weather: Sunny,Humid and Hot. | Water Body: Siltorsa |
| Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Muddy Brown | Odour: Fishy | Visible effluent discharge: Moderate |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| COD | 28.00 | mg/l |
| Total Dissolved Solids(TDS) | 64.00 | mg/l |
| Sulphate | 12.00 | mg/l |
| Total Fixed Solids(TFS) | mg/l | |
| Total Hardness as CaCo3 | 78.00 | mg/l |
| Total Suspended Solids(TSS) | 80.00 | mg/l |
| Turbidity | NTU | |
| Ammonia-N | mg/l | |
| Phenolpthalein Alkanity | NIL | mg/l |
| BOD | 2.10 | mg/l |
| Conductivity | 98.40 | µs/cm |
| Dissolved O2(DO) | 6.90 | mg/l |
| Fecal Coliform | 1100 | MPN/100ml |
| Nitrate-N | mg/l | |
| pH | 6.50 | Unit |
| Temperature(Water) | 30 | ⁰C |
| Total Coliform | 5000 | MPN/100ml |
| Boron | 0.47 | mg/l |
| Calcium | 22.44 | mg/l |
| Chloride | 20.55 | mg/l |
| Fluoride | mg/l | |
| Magnesium | 8.06 | mg/l |
| Potassium | 0.60 | mg/l |
| Sodium | 2.60 | mg/l |
| Total Alkalinity | 64.00 | mg/l |
| Phosphate-P | 0.356 | mg/l |