West Bengal Pollution Control Board |
Siliguri Laboratory |
Paribesh Bhawan, Paribahan Nagar, P.O. Matigara, Siliguri,Darjeeling 734 428. |
| Station: River Jaldhaka at Dhupguri | River Basin: Tista | CPCB Station Code: 4717 |
| Sample Date: 27/04/2021 | Sample Time: 09:00 | |
| Human Activities: Fishing | Weather: Sunny and Clear. | Water Body: Jaldhaka |
| Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Light Brown | Odour: Fishy | Visible effluent discharge: Nil |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | 0.13 | mg/l |
| BOD | 1.20 | mg/l |
| Conductivity | 86.74 | µs/cm |
| Dissolved O2(DO) | 7.40 | mg/l |
| Fecal Coliform | 3400 | MPN/100ml |
| Fecal Streptococci | 12 | MPN/100ml |
| Nitrate-N | 0.50 | mg/l |
| pH | 7.34 | Unit |
| Temperature(Water) | 29 | ⁰C |
| Total Coliform | 13000 | MPN/100ml |
| Calcium | 8.01 | mg/l |
| Chloride | 11.74 | mg/l |
| COD | 28.00 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 4.03 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.004 | mg/l |
| Potassium | BDL | mg/l |
| Sodium | BDL | mg/l |
| Sulphate | 10.11 | mg/l |
| Total Alkalinity | 30.0 | mg/l |
| Total Dissolved Solids(TDS) | 66.00 | mg/l |
| Total Fixed Solids(TFS) | 230.00 | mg/l |
| Total Hardness as CaCo3 | 34.00 | mg/l |
| Total Suspended Solids(TSS) | 36.00 | mg/l |
| Turbidity | 2.72 | NTU |
| Arsenic | BDL | mg/l |
| Cadmium | BDL | mg/l |
| Chromium Total | BDL | mg/l |
| Copper | BDL | mg/l |
| Iron | BDL | mg/l |
| Lead | BDL | mg/l |
| Mercury | BDL | mg/l |
| Nickel | BDL | mg/l |
| Zinc | BDL | mg/l |
| a-BHC | ppb | |
| a-Endosulphan | ppb | |
| Aldrin | ppb | |
| Anilophos | ppb | |
| b-Endosulphan | ppb | |
| Chlorpyriphos | ppb | |
| Dieldrin | ppb | |
| g-BHC | ppb | |
| Malathion | ppb | |
| Methyl Parathion | ppb | |
| o,p-DDT | ppb | |
| p,p-DDT | ppb | |
| Boron | 1.31 | mg/l |