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: 24/12/2020 | Sample Time: 11:50 | |
| Human Activities: Fishing | Weather: Sunny and Clear. | Water Body: Siltorsa |
| Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Moderately green | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Chloride | 4.90 | mg/l |
| COD | 40.00 | mg/l |
| Fluoride | 0.13 | mg/l |
| Magnesium | 10.95 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.011 | mg/l |
| Potassium | 0.10 | mg/l |
| Sodium | 0.80 | mg/l |
| Sulphate | 21.00 | mg/l |
| Total Alkalinity | 70.00 | mg/l |
| Total Fixed Solids(TFS) | 216.00 | mg/l |
| Total Suspended Solids(TSS) | 46.00 | mg/l |
| Turbidity | 1.84 | NTU |
| Ammonia-N | BDL | mg/l |
| Conductivity | 92.80 | µs/cm |
| Dissolved O2(DO) | 6.90 | mg/l |
| Nitrate-N | 0.048 | mg/l |
| Fecal Coliform | 2600 | MPN/100ml |
| Fecal Streptococci | 11 | MPN/100ml |
| Boron | 2.806 | mg/l |
| pH | 7.40 | Unit |
| Total Coliform | 11000 | MPN/100ml |
| Total Dissolved Solids(TDS) | 54.00 | mg/l |
| BOD | 1.20 | mg/l |
| Temperature(Water) | 21 | ⁰C |
| Calcium | 23.24 | mg/l |
| Total Hardness as CaCo3 | 96.00 | mg/l |