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: 25/06/2019 | Sample Time: 11:45 | |
| Human Activities: Bathing, Washing and Fishing. | Weather: Cloudy and Rainy | Water Body: Siltorsa |
| Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Muddy | Odour: Odour free | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Conductivity | 117.80 | µs/cm |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.051 | mg/l |
| pH | 7.32 | Unit |
| Temperature | 25 | ⁰C |
| Total Coliform | 7000 | MPN/100ml |
| Boron | 0.011 | mg/l |
| Potassium | 12.10 | mg/l |
| Sodium | 1.70 | mg/l |
| Sulphate | 13.44 | mg/l |
| Total Alkalinity | 124.00 | mg/l |
| Total Dissolved Solids(TDS) | 72.00 | mg/l |
| Total Fixed Solids(TFS) | 5527.00 | mg/l |
| Total Hardness as CaCo3 | 96.00 | mg/l |
| Total Kjeldahl Nitrogen(TKN) | mg/l | |
| Total Suspended Solids(TSS) | 682.00 | mg/l |
| Turbidity | 281.00 | NTU |
| Ammonia-N | 0.15 | mg/l |
| BOD | 1.60 | mg/l |
| Dissolved O2(DO) | 6.90 | mg/l |
| Fecal Coliform | 2300 | MPN/100ml |
| Nitrate-N | 0.36 | mg/l |
| Calcium | 20.04 | mg/l |
| Chloride | 0.83 | mg/l |
| COD | 47.60 | mg/l |
| Fluoride | 0.12 | mg/l |
| Magnesium | 13.25 | mg/l |