West Bengal Pollution Control Board |
Siliguri Laboratory |
Paribesh Bhawan, Paribahan Nagar, P.O. Matigara, Siliguri,Darjeeling 734 428. |
| Station: River Torsa at Hasimara | River Basin: GANGA | CPCB Station Code: 4724 |
| Sample Date: 26/04/2022 | Sample Time: 10:36 | |
| Human Activities: Bathing and Washing | Weather: Sunny and Clear. | Water Body: Torsa |
| Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Light Green | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Total Dissolved Solids(TDS) | 74.00 | mg/l |
| Total Fixed Solids(TFS) | 60.00 | mg/l |
| Total Hardness as CaCo3 | 62.00 | mg/l |
| Total Suspended Solids(TSS) | 111.00 | mg/l |
| Turbidity | 9.82 | NTU |
| Arsenic | BDL | mg/l |
| Cadmium | BDL | mg/l |
| Chromium Total | BDL | mg/l |
| Copper | BDL | mg/l |
| Iron | 0.25 | mg/l |
| Mercury | BDL | mg/l |
| Nickel | BDL | mg/l |
| Zinc | BDL | mg/l |
| a-BHC | BDL | ppb |
| a-Endosulphan | BDL | ppb |
| Aldrin | BDL | ppb |
| Anilophos | BDL | ppb |
| b-Endosulphan | BDL | ppb |
| Chlorpyriphos | BDL | ppb |
| Dieldrin | BDL | ppb |
| g-BHC | BDL | ppb |
| Malathion | BDL | ppb |
| Methyl Parathion | BDL | ppb |
| o,p-DDT | BDL | ppb |
| p,p-DDT | BDL | ppb |
| Ammonia-N | 0.15 | mg/l |
| BOD | 1.10 | mg/l |
| Conductivity | 106.0 | µs/cm |
| Dissolved O2(DO) | 8.20 | mg/l |
| Fecal Coliform | 2700 | MPN/100ml |
| Fecal Streptococci | 25 | MPN/100ml |
| Nitrate-N | 0.33 | mg/l |
| pH | 7.03 | Unit |
| Temperature(Water) | 24 | ⁰C |
| Total Coliform | 7000 | MPN/100ml |
| Boron | 3.43 | mg/l |
| Calcium | 11.22 | mg/l |
| Chloride | 3.91 | mg/l |
| COD | 14.00 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 7.48 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.001 | mg/l |
| Potassium | 3.20 | mg/l |
| Sodium | 4.90 | mg/l |
| Sulphate | 10.24 | mg/l |
| Total Alkalinity | 48.00 | mg/l |
| Lead | BDL | mg/l |