West Bengal Pollution Control Board |
Siliguri Laboratory |
Paribesh Bhawan, Paribahan Nagar, P.O. Matigara, Siliguri,Darjeeling 734 428. |
| Station: TEESTA AT SEVOKE | River Basin: Tista | CPCB Station Code: 1947 |
| Sample Date: 07/10/2020 | Sample Time: 11:40 | |
| Human Activities: None | Weather: Sunny and Clear. | Water Body: TEESTA AT SILIGURI |
| Frequency Of Monitoring: Quarterly | Use Based Class: C | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Moderately Green and clear | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Conductivity | 48.16 | µs/cm |
| Ammonia-N | BDL | mg/l |
| Fecal Coliform | 2600 | MPN/100ml |
| Nitrate-N | 1.14 | mg/l |
| pH | 7.42 | Unit |
| Temperature(Water) | 26 | ⁰C |
| Total Coliform | 9000 | MPN/100ml |
| Boron | 2.61 | mg/l |
| Chloride | 4.68 | mg/l |
| COD | 32.00 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 7.49 | mg/l |
| Phosphate-P | 0.015 | mg/l |
| Potassium | 0.20 | mg/l |
| Sodium | 0.90 | mg/l |
| Sulphate | 10.95 | mg/l |
| Total Alkalinity | 44.00 | mg/l |
| Total Dissolved Solids(TDS) | 98.00 | mg/l |
| Total Fixed Solids(TFS) | 22.00 | mg/l |
| Total Hardness as CaCo3 | 58.00 | mg/l |
| Turbidity | 4.76 | NTU |
| Dissolved O2(DO) | 7.40 | mg/l |
| Total Suspended Solids(TSS) | 72.00 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| BOD | 1.20 | mg/l |
| Calcium | 12.83 | mg/l |