West Bengal Pollution Control Board |
Siliguri Laboratory |
Paribesh Bhawan, Paribahan Nagar, P.O. Matigara, Siliguri,Darjeeling 734 428. |
| Station: MAHANANDA D/S, RAMGHAT | River Basin: Mahananda | CPCB Station Code: 2525 |
| Sample Date: 20/04/2021 | Sample Time: 11:35 | |
| Human Activities: Fishing and Sand Extraction | Weather: Sunny and Clear. | Water Body: Ramghat on Mahananda |
| Frequency Of Monitoring: Quarterly | Use Based Class: C | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Moderately green and turbid | Odour: Septic. | Visible effluent discharge: High. |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Dissolved O2(DO) | 4.50 | mg/l |
| Fecal Coliform | 110000 | MPN/100ml |
| Fecal Streptococci | 220 | MPN/100ml |
| Nitrate-N | 0.63 | mg/l |
| pH | 6.05 | Unit |
| Temperature(Water) | 29 | ⁰C |
| Total Coliform | 220000 | MPN/100ml |
| Ammonia-N | 0.81 | mg/l |
| Conductivity | 184.10 | µs/cm |
| Total Dissolved Solids(TDS) | 113.00 | mg/l |
| Calcium | 14.42 | mg/l |
| Total Hardness as CaCo3 | 80.00 | mg/l |
| Total Suspended Solids(TSS) | 122.00 | mg/l |
| Turbidity | 4.04 | NTU |
| Arsenic | BDL | mg/l |
| Cadmium | BDL | mg/l |
| Chromium Total | BDL | mg/l |
| Copper | BDL | mg/l |
| Iron | 1.17 | mg/l |
| Lead | BDL | mg/l |
| Mercury | BDL | mg/l |
| Nickel | BDL | mg/l |
| Zinc | 0.06 | 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 | |
| BOD | 21.00 | mg/l |
| Boron | 3.60 | mg/l |
| Chloride | 27.39 | mg/l |
| COD | 112.00 | mg/l |
| Fluoride | 0.25 | mg/l |
| Magnesium | 12.67 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.050 | mg/l |
| Potassium | 3.80 | mg/l |
| Sodium | 8.10 | mg/l |
| Sulphate | 23.58 | mg/l |
| Total Alkalinity | 94.00 | mg/l |
| Total Fixed Solids(TFS) | 62.00 | mg/l |