West Bengal Pollution Control Board |
Siliguri Laboratory |
Paribesh Bhawan, Paribahan Nagar, P.O. Matigara, Siliguri,Darjeeling 734 428. |
| Station: River Siltorsa at Hasimara | River Basin: Tista | CPCB Station Code: 4718 |
| Sample Date: 29/07/2019 | Sample Time: 13:00 | |
| Human Activities: None | Weather: Sunny and Clear | Water Body: Siltorsa |
| Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Muddy and Moderately Brown | Odour: Odour free | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Temperature | 27 | ⁰C |
| Total Coliform | 14000 | MPN/100ml |
| Boron | 0.014 | mg/l |
| Calcium | 22.44 | mg/l |
| Chloride | 6.85 | mg/l |
| COD | 48.64 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 12.67 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.099 | mg/l |
| Potassium | 13.60 | mg/l |
| Sodium | 0.90 | mg/l |
| Sulphate | 12.50 | mg/l |
| Total Alkalinity | 124.0 | mg/l |
| Total Dissolved Solids(TDS) | 84.00 | mg/l |
| Ammonia-N | BDL | mg/l |
| BOD | 0.80 | mg/l |
| Conductivity | 125.90 | µs/cm |
| Dissolved O2(DO) | 6.70 | mg/l |
| Fecal Coliform | 5000 | MPN/100ml |
| Nitrate-N | 0.72 | mg/l |
| pH | 7.28 | Unit |
| Total Kjeldahl Nitrogen(TKN) | mg/l | |
| Total Suspended Solids(TSS) | 172.00 | mg/l |
| Turbidity | 372.00 | NTU |
| Total Fixed Solids(TFS) | 488.00 | mg/l |
| Total Hardness as CaCo3 | 72.00 | mg/l |