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: 27/11/2019 | Sample Time: 16:05 Hrs | |
| Human Activities: Bathing & 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: Moderately Green & Slightly turbid. | Odour: Fishy | Visible effluent discharge: None. |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| BOD | 0.80 | mg/l |
| Fecal Coliform | 2600 | MPN/100ml |
| Ammonia-N | BDL | mg/l |
| Nitrate-N | 0.59 | mg/l |
| pH | 7.24 | Unit |
| Temperature | 26 | ⁰C |
| Total Coliform | 11000 | MPN/100ml |
| Boron | 0.026 | mg/l |
| Calcium | 32.06 | mg/l |
| Chloride | 9.78 | mg/l |
| COD | 58.00 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 8.64 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.075 | mg/l |
| Potassium | 2.90 | mg/l |
| Sodium | BDL | mg/l |
| Sulphate | 19.04 | mg/l |
| Total Alkalinity | 100.00 | mg/l |
| Total Dissolved Solids(TDS) | 58.00 | mg/l |
| Total Fixed Solids(TFS) | 238.00 | mg/l |
| Total Hardness as CaCo3 | 110.00 | mg/l |
| Total Suspended Solids(TSS) | 38.00 | mg/l |
| Turbidity | 117.00 | NTU |
| Conductivity | 69.54 | µs/cm |
| Dissolved O2(DO) | 6.80 | mg/l |