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: 29/07/2022 | Sample Time: 08:20 | |
| Human Activities: None | Weather: Cloudy and Rainy. | Water Body: TEESTA AT SILIGURI |
| Frequency Of Monitoring: Quarterly | Use Based Class: C | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Light Brown and moderately turbid | Odour: Odour free | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | BDL | mg/l |
| BOD | 1.10 | mg/l |
| Conductivity | 44.20 | µs/cm |
| Dissolved O2(DO) | 8.70 | mg/l |
| Fecal Coliform | 2200 | MPN/100ml |
| Fecal Streptococci | 14 | MPN/100ml |
| Nitrate-N | 0.06 | mg/l |
| pH | 6.96 | Unit |
| Temperature(Water) | 16 | ⁰C |
| Total Coliform | 5000 | MPN/100ml |
| Boron | 1.33 | mg/l |
| Calcium | 5.60 | mg/l |
| Chloride | 2.93 | mg/l |
| COD | 14.56 | mg/l |
| Fluoride | 0.49 | mg/l |
| Magnesium | 0.97 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.05 | mg/l |
| Potassium | 1.90 | mg/l |
| Sodium | 2.00 | mg/l |
| Sulphate | 8.07 | mg/l |
| Total Alkalinity | 28.00 | mg/l |
| Total Dissolved Solids(TDS) | 22.00 | mg/l |
| Total Fixed Solids(TFS) | 140.00 | mg/l |
| Total Hardness as CaCo3 | 18.00 | mg/l |
| Total Suspended Solids(TSS) | 94.00 | mg/l |
| Turbidity | 53.02 | NTU |