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: 23/02/2022 | Sample Time: 10:30 | |
| Human Activities: Bathing and Washing . | 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: Light Green and moderately turbid | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | BDL | mg/l |
| BOD | 0.90 | mg/l |
| Conductivity | 82.79 | µs/cm |
| Dissolved O2(DO) | 7.90 | mg/l |
| Fecal Coliform | 2600 | MPN/100ml |
| Fecal Streptococci | 21 | MPN/100ml |
| Nitrate-N | 0.23 | mg/l |
| pH | 7.35 | Unit |
| Temperature(Water) | 16 | ⁰C |
| Total Coliform | 3300 | MPN/100ml |
| Boron | 0.46 | mg/l |
| Calcium | 15.23 | mg/l |
| Chloride | 4.89 | mg/l |
| COD | 5.20 | mg/l |
| Fluoride | 0.18 | mg/l |
| Magnesium | 3.45 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.005 | mg/l |
| Potassium | 0.80 | mg/l |
| Sodium | 1.10 | mg/l |
| Sulphate | 8.07 | mg/l |
| Total Alkalinity | 40.00 | mg/l |
| Total Dissolved Solids(TDS) | 42.00 | mg/l |
| Total Fixed Solids(TFS) | 42.00 | mg/l |
| Total Hardness as CaCo3 | 50.00 | mg/l |
| Total Suspended Solids(TSS) | 2.00 | mg/l |
| Turbidity | 2.73 | NTU |