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: 15/01/2019 | Sample Time: 09:45 | |
| Human Activities: Sand Extraction | Weather: Clear and Windy | Water Body: TEESTA AT SILIGURI |
| Frequency Of Monitoring: Quarterly | Use Based Class: C | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Brown and Clear | Odour: None | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| BOD | 1.80 | mg/l |
| Conductivity | 70.10 | µs/cm |
| Dissolved O2(DO) | 7.80 | mg/l |
| Fecal Coliform | 2600 | MPN/100ml |
| Nitrate-N | 0.35 | mg/l |
| pH | 7.21 | Unit |
| Temperature | 12 | ⁰C |
| Total Coliform | 5000 | MPN/100ml |
| Boron | 0.014 | mg/l |
| Calcium | 12.02 | mg/l |
| Chloride | 9.78 | mg/l |
| COD | 16.00 | mg/l |
| Fluoride | 0.22 | mg/l |
| Magnesium | 2.24 | mg/l |
| Phenolpthalein Alkanity | Nil | mg/l |
| Phosphate-P | 0.051 | mg/l |
| Potassium | BDL | mg/l |
| Sodium | 6.37 | mg/l |
| Sulphate | 0.87 | mg/l |
| Total Alkalinity | 42.00 | mg/l |
| Total Dissolved Solids(TDS) | 68.00 | mg/l |
| Total Fixed Solids(TFS) | 70.0 | mg/l |
| Total Hardness as CaCo3 | 30.00 | mg/l |
| Total Suspended Solids(TSS) | 18.00 | mg/l |
| Turbidity | 1.54 | NTU |
| Ammonia-N | 0.25 | mg/l |