West Bengal Pollution Control Board |
Siliguri Laboratory |
Paribesh Bhawan, Paribahan Nagar, P.O. Matigara, Siliguri,Darjeeling 734 428. |
| Station: River Torsa at Hasimara | River Basin: GANGA | CPCB Station Code: 4724 |
| Sample Date: 29/05/2020 | Sample Time: 12:45 Hrs | |
| Human Activities: Bathing and Washing. | Weather: Sunny | Water Body: Torsa |
| Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Light Brown and Moderately Turbid | Odour: None | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | mg/l | |
| BOD | 1.60 | mg/l |
| Conductivity | 82.61 | µs/cm |
| Dissolved O2(DO) | 7.30 | mg/l |
| Total Suspended Solids(TSS) | 24.00 | mg/l |
| Turbidity | NTU | |
| Nitrate-N | mg/l | |
| Total Fixed Solids(TFS) | mg/l | |
| Total Hardness as CaCo3 | 56.00 | mg/l |
| pH | 7.62 | Unit |
| Temperature(Water) | 29 | ⁰C |
| Total Coliform | 5000 | MPN/100ml |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.015 | mg/l |
| Potassium | 1.1 | mg/l |
| Sodium | 2.0 | mg/l |
| Sulphate | 14.19 | mg/l |
| Boron | 4.31 | mg/l |
| Calcium | 11.22 | mg/l |
| Chloride | 11.74 | mg/l |
| COD | 22.00 | mg/l |
| Fluoride | mg/l | |
| Magnesium | 8.06 | mg/l |
| Total Alkalinity | 56.00 | mg/l |
| Total Dissolved Solids(TDS) | 41.00 | mg/l |
| Fecal Coliform | 1300 | MPN/100ml |