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: 18/03/2019 | Sample Time: 11:30 Hrs | |
| Human Activities: Sand extraction | Weather: Clear | 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: None | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Conductivity | 121.00 | µs/cm |
| Dissolved O2(DO) | 8.80 | mg/l |
| Fecal Coliform | 3300 | MPN/100ml |
| Nitrate-N | 0.38 | mg/l |
| pH | 7.18 | Unit |
| Temperature | 24 | ⁰C |
| Total Coliform | 14000 | MPN/100ml |
| Boron | 0.002 | mg/l |
| Calcium | 13.60 | mg/l |
| Chloride | 11.74 | mg/l |
| COD | 33.00 | mg/l |
| Fluoride | 0.15 | mg/l |
| Magnesium | 1.73 | mg/l |
| Phenolpthalein Alkanity | Nil | mg/l |
| Phosphate-P | 0.003 | mg/l |
| Potassium | 1.60 | mg/l |
| Sodium | 2.20 | mg/l |
| Sulphate | 6.46 | mg/l |
| Total Alkalinity | 66.00 | mg/l |
| Total Dissolved Solids(TDS) | 68.00 | mg/l |
| Total Fixed Solids(TFS) | 42.0 | mg/l |
| Total Hardness as CaCo3 | 40.00 | mg/l |
| Total Suspended Solids(TSS) | 28.00 | mg/l |
| Turbidity | 1.15 | NTU |
| BOD | 2.40 | mg/l |
| Ammonia-N | BDL | mg/l |